Merge pull request #2117 from AFLplusplus/dev

push to stable

.custom-format.py

@@ -3,10 +3,10 @@
 # american fuzzy lop++ - custom code formatter
 # --------------------------------------------
 #
-# Written and maintaned by Andrea Fioraldi <andreafioraldi@gmail.com>
+# Written and maintained by Andrea Fioraldi <andreafioraldi@gmail.com>
 #
 # Copyright 2015, 2016, 2017 Google Inc. All rights reserved.
-# Copyright 2019-2020 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2023 AFLplusplus Project. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,41 +18,56 @@
 import subprocess
 import sys
 import os
-import re
+# import re # TODO: for future use
+import shutil
+import importlib.metadata
+
+# string_re = re.compile('(\\"(\\\\.|[^"\\\\])*\\")') # TODO: for future use
+
+CURRENT_LLVM = os.getenv('LLVM_VERSION', 17)
+CLANG_FORMAT_BIN = os.getenv("CLANG_FORMAT_BIN", "")
+
+
+def check_clang_format_pip_version():
+    """
+    Check if the correct version of clang-format is installed via pip.
+
+    Returns:
+        bool: True if the correct version of clang-format is installed,
+        False otherwise.
+    """
+    # Check if clang-format is installed
+    if importlib.util.find_spec('clang_format'):
+        # Check if the installed version is the expected LLVM version
+        if importlib.metadata.version('clang-format')\
+                .startswith(str(CURRENT_LLVM)+'.'):
+            return True
+        else:
+            # Return False, because the clang-format version does not match
+            return False
+    else:
+        # If the 'clang_format' package isn't installed, return False
+        return False
 
-# string_re = re.compile('(\\"(\\\\.|[^"\\\\])*\\")') # future use
 
 with open(".clang-format") as f:
     fmt = f.read()
 
-CLANG_FORMAT_BIN = os.getenv("CLANG_FORMAT_BIN")
-if CLANG_FORMAT_BIN is None:
-    o = 0
-    try:
-        p = subprocess.Popen(["clang-format-11", "--version"], stdout=subprocess.PIPE)
-        o, _ = p.communicate()
-        o = str(o, "utf-8")
-        o = re.sub(r".*ersion ", "", o)
-        # o = o[len("clang-format version "):].strip()
-        o = o[: o.find(".")]
-        o = int(o)
-    except:
-        print("clang-format-11 is needed. Aborted.")
-        exit(1)
-    # if o < 7:
-    #    if subprocess.call(['which', 'clang-format-7'], stdout=subprocess.PIPE) == 0:
-    #        CLANG_FORMAT_BIN = 'clang-format-7'
-    #    elif subprocess.call(['which', 'clang-format-8'], stdout=subprocess.PIPE) == 0:
-    #        CLANG_FORMAT_BIN = 'clang-format-8'
-    #    elif subprocess.call(['which', 'clang-format-9'], stdout=subprocess.PIPE) == 0:
-    #        CLANG_FORMAT_BIN = 'clang-format-9'
-    #    elif subprocess.call(['which', 'clang-format-11'], stdout=subprocess.PIPE) == 0:
-    #        CLANG_FORMAT_BIN = 'clang-format-11'
-    #    else:
-    #        print ("clang-format 7 or above is needed. Aborted.")
-    #        exit(1)
-    else:
-        CLANG_FORMAT_BIN = "clang-format-11"
+
+CLANG_FORMAT_PIP = check_clang_format_pip_version()
+
+if shutil.which(CLANG_FORMAT_BIN) is None:
+    CLANG_FORMAT_BIN = f"clang-format-{CURRENT_LLVM}"
+
+if shutil.which(CLANG_FORMAT_BIN) is None \
+        and CLANG_FORMAT_PIP is False:
+    print(f"[!] clang-format-{CURRENT_LLVM} is needed. Aborted.")
+    print(f"Run `pip3 install \"clang-format=={CURRENT_LLVM}.*\"` \
+to install via pip.")
+    exit(1)
+
+if CLANG_FORMAT_PIP:
+    CLANG_FORMAT_BIN = shutil.which("clang-format")
 
 COLUMN_LIMIT = 80
 for line in fmt.split("\n"):
@@ -72,43 +87,43 @@ def custom_format(filename):
 
     for line in src.split("\n"):
         if line.lstrip().startswith("#"):
-            if line[line.find("#") + 1 :].lstrip().startswith("define"):
+            if line[line.find("#") + 1:].lstrip().startswith("define"):
                 in_define = True
 
         if (
-            "/*" in line
-            and not line.strip().startswith("/*")
-            and line.endswith("*/")
-            and len(line) < (COLUMN_LIMIT - 2)
+                "/*" in line
+                and not line.strip().startswith("/*")
+                and line.endswith("*/")
+                and len(line) < (COLUMN_LIMIT - 2)
         ):
             cmt_start = line.rfind("/*")
             line = (
-                line[:cmt_start]
-                + " " * (COLUMN_LIMIT - 2 - len(line))
-                + line[cmt_start:]
+                    line[:cmt_start]
+                    + " " * (COLUMN_LIMIT - 2 - len(line))
+                    + line[cmt_start:]
             )
 
         define_padding = 0
         if last_line is not None and in_define and last_line.endswith("\\"):
             last_line = last_line[:-1]
-            define_padding = max(0, len(last_line[last_line.rfind("\n") + 1 :]))
+            define_padding = max(0, len(last_line[last_line.rfind("\n") + 1:]))
 
         if (
-            last_line is not None
-            and last_line.strip().endswith("{")
-            and line.strip() != ""
+                last_line is not None
+                and last_line.strip().endswith("{")
+                and line.strip() != ""
         ):
             line = (" " * define_padding + "\\" if in_define else "") + "\n" + line
         elif (
-            last_line is not None
-            and last_line.strip().startswith("}")
-            and line.strip() != ""
+                last_line is not None
+                and last_line.strip().startswith("}")
+                and line.strip() != ""
         ):
             line = (" " * define_padding + "\\" if in_define else "") + "\n" + line
         elif (
-            line.strip().startswith("}")
-            and last_line is not None
-            and last_line.strip() != ""
+                line.strip().startswith("}")
+                and last_line is not None
+                and last_line.strip() != ""
         ):
             line = (" " * define_padding + "\\" if in_define else "") + "\n" + line
 

.dockerignore

@@ -1,65 +1,75 @@
+!/coresight_mode
+*.dSYM
+*.o
+*.pyc
+*.so
+.sync_tmp
 .test
 .test2
-.sync_tmp
-*.o
-*.so
-*.pyc
-*.dSYM
-as
-ld
-in
-out
-core*
+.git
+.dockerignore
+.github
+CITATION.cff
+CONTRIBUTING.md
+Changelog.md
+Dockerfile
+LICENSE
+TODO.md
 afl-analyze
-afl-as
-afl-clang
-afl-clang\+\+
-afl-clang-fast
-afl-clang-fast\+\+
-afl-clang-lto
-afl-clang-lto\+\+
-afl-fuzz
-afl-g\+\+
-afl-gcc
-afl-gcc-fast
-afl-g\+\+-fast
-afl-gotcpu
-afl-ld
-afl-ld-lto
-afl-qemu-trace
-afl-showmap
-afl-tmin
 afl-analyze.8
+afl-as
 afl-as.8
-afl-clang-fast\+\+.8
+afl-clang
+afl-clang-fast
 afl-clang-fast.8
+afl-clang-fast\+\+
+afl-clang-fast\+\+.8
+afl-clang-lto
 afl-clang-lto.8
+afl-clang-lto\+\+
 afl-clang-lto\+\+.8
+afl-clang\+\+
 afl-cmin.8
 afl-cmin.bash.8
+afl-fuzz
 afl-fuzz.8
-afl-gcc.8
-afl-gcc-fast.8
+afl-g\+\+
+afl-g\+\+-fast
 afl-g\+\+-fast.8
+afl-gcc
+afl-gcc-fast
+afl-gcc-fast.8
+afl-gcc.8
+afl-gotcpu
 afl-gotcpu.8
+afl-ld
+afl-ld-lto
 afl-plot.8
+afl-qemu-trace
+afl-showmap
 afl-showmap.8
 afl-system-config.8
+afl-tmin
 afl-tmin.8
 afl-whatsup.8
+as
+core*
+examples/afl_frida/afl-frida
+examples/afl_frida/frida-gum-example.c
+examples/afl_frida/frida-gum.h
+examples/afl_frida/libtestinstr.so
+examples/afl_network_proxy/afl-network-client
+examples/afl_network_proxy/afl-network-server
+in
+ld
+out
 qemu_mode/libcompcov/compcovtest
 qemu_mode/qemu-*
+test/unittests/unit_hash
+test/unittests/unit_list
+test/unittests/unit_maybe_alloc
+test/unittests/unit_preallocable
+test/unittests/unit_rand
 unicorn_mode/samples/*/\.test-*
 unicorn_mode/samples/*/output
 unicorn_mode/unicornafl
-test/unittests/unit_maybe_alloc
-test/unittests/unit_preallocable
-test/unittests/unit_list
-test/unittests/unit_rand
-test/unittests/unit_hash
-examples/afl_network_proxy/afl-network-server
-examples/afl_network_proxy/afl-network-client
-examples/afl_frida/afl-frida
-examples/afl_frida/libtestinstr.so
-examples/afl_frida/frida-gum-example.c
-examples/afl_frida/frida-gum.h

.github/workflows/build_aflplusplus_docker.yaml

@@ -1,25 +0,0 @@
-name: Publish Docker Images
-
-on:
-  push:
-    branches: [ stable ]
-#    paths:
-#    - Dockerfile
-
-jobs:
-  push_to_registry:
-    name: Push Docker images to Dockerhub
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@master
-    - name: Login to Dockerhub
-      uses: docker/login-action@v1
-      with:
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_TOKEN }}
-    - name: Publish aflpp to Registry
-      uses: docker/build-push-action@v2
-      with:
-        context: .
-        push: true
-        tags: aflplusplus/aflplusplus:latest

.github/workflows/ci.yml

@@ -2,29 +2,55 @@ name: CI
 
 on:
   push:
-    branches: [ stable, dev ]
+    branches:
+      - stable
+      - dev
   pull_request:
-    branches: [ stable, dev ]
+    branches:
+      - dev # No need for stable-pull-request, as that equals dev-push
 
 jobs:
-  build:
-    runs-on: '${{ matrix.os }}'
+  linux:
+    runs-on: "${{ matrix.os }}"
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-18.04]
+        os: [ubuntu-22.04, ubuntu-20.04]
+    env:
+      AFL_SKIP_CPUFREQ: 1
+      AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES: 1
     steps:
-      - uses: actions/checkout@v2
-      - name: debug
-        run: apt-cache search plugin-dev | grep gcc- ; echo ; apt-cache search clang-format- | grep clang-format-
+      - uses: actions/checkout@v3
       - name: update
         run: sudo apt-get update && sudo apt-get upgrade -y
+      - name: debug
+        run: apt-cache search plugin-dev | grep gcc-; echo; apt-cache search clang-format- | grep clang-format-
       - name: install packages
-        run: sudo apt-get install -y -m -f --install-suggests build-essential git libtool libtool-bin automake bison libglib2.0-0 clang llvm-dev libc++-dev findutils libcmocka-dev python3-dev python3-setuptools ninja-build
+        run: sudo apt-get install -y -m -f build-essential gcc-10 g++-10 git libtool libtool-bin automake flex bison libglib2.0-0 clang-12 llvm-12-dev libc++-dev findutils libcmocka-dev python3-dev python3-setuptools ninja-build python3-pip gcc-10-plugin-dev
       - name: compiler installed
-        run: gcc -v ; echo ; clang -v
+        run: gcc -v; echo; clang -v
       - name: install gcc plugin
         run: sudo apt-get install -y -m -f --install-suggests $(readlink /usr/bin/gcc)-plugin-dev
       - name: build afl++
-        run: make distrib ASAN_BUILD=1
+        run: export NO_NYX=1; export ASAN_BUILD=1; export LLVM_CONFIG=llvm-config-12; make ASAN_BUILD=1 NO_NYX=1 LLVM_CONFIG=llvm-config-12 distrib
       - name: run tests
-        run: sudo -E ./afl-system-config ; export AFL_SKIP_CPUFREQ=1 ; make tests
+        run: sudo -E ./afl-system-config; make tests
+ # macos:
+ #   runs-on: macOS-latest
+ #   env:
+ #     AFL_MAP_SIZE: 65536
+ #     AFL_SKIP_CPUFREQ: 1
+ #     AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES: 1
+ #   steps:
+ #     - uses: actions/checkout@v3
+ #     - name: install
+ #       run: brew install make gcc llvm
+ #     - name: fix install
+ #       run: cd /usr/local/bin; ln -s gcc-11 gcc; ln -s g++-11 g++; which gcc; gcc -v
+ #     - name: build
+ #       run: export PATH=/usr/local/Cellar/llvm/*/":$PATH"; export CC=/usr/local/Cellar/llvm/*/bin/clang; export CXX="$CC"++; export LLVM_CONFIG=/usr/local/Cellar/llvm/*/bin/llvm-config; sudo -E ./afl-system-config; gmake ASAN_BUILD=1
+ #     - name: frida
+ #       run: export CC=/usr/local/Cellar/llvm/*/bin/clang; export CXX="$CC"++; cd frida_mode; gmake
+ #     - name: run tests
+ #       run: sudo -E ./afl-system-config; export CC=/usr/local/Cellar/llvm/*/bin/clang; export CXX="$CC"++; export PATH=/usr/local/Cellar/llvm/*/":/usr/local/bin:$PATH"; export LLVM_CONFIG=/usr/local/Cellar/llvm/*/bin/llvm-config; gmake tests
+ #     - name: force frida test for MacOS
+ #       run: export AFL_PATH=`pwd`; /usr/local/bin/gcc -o test-instr test-instr.c; mkdir in; echo > in/in; AFL_NO_UI=1 ./afl-fuzz -O -i in -o out -V 5 -- ./test-instr

.github/workflows/code-format.yml

@@ -0,0 +1,33 @@
+name: Formatting
+
+on:
+  push:
+    branches:
+      - stable
+      - dev
+  pull_request:
+    branches:
+      - dev # No need for stable-pull-request, as that equals dev-push
+
+jobs:
+  code-format-check:
+    name: Check code format
+    if: ${{ 'false' == 'true' }} # Disable the job
+    runs-on: ubuntu-22.04
+    container: docker.io/aflplusplus/aflplusplus:dev
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Format
+        run: |
+          git config --global --add safe.directory /__w/AFLplusplus/AFLplusplus
+          apt-get update
+          apt-get install -y clang-format-${LLVM_VERSION}
+          make code-format
+      - name: Check if code needed formatting
+        run: |
+          git --no-pager -c color.ui=always diff HEAD
+          if ! git diff HEAD --quiet; then
+            echo "[!] Please run 'make code-format' and push its changes."
+            exit 1
+          fi

.github/workflows/codeql-analysis.yml

@@ -2,31 +2,32 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ stable, dev ]
+    branches:
+      - stable
+      - dev
   pull_request:
-    branches: [ stable, dev ]
+    branches:
+      - dev # No need for stable-pull-request, as that equals dev-push
 
 jobs:
   analyze:
     name: Analyze
     runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        language: [ 'cpp' ]
-
+    container: # We use a previous image as it's expected to have all the dependencies
+      image: docker.io/aflplusplus/aflplusplus:dev
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      - name: Fix for using external repo in container build # https://github.com/actions/checkout/issues/760
+        run: git config --global --add safe.directory /__w/AFLplusplus/AFLplusplus
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: cpp, python
+      - name: Build AFLplusplus # Rebuild because CodeQL needs to monitor the build process
+        env:
+          CC: gcc # These are symlinked to the version used in the container build
+          CXX: g++
+        run: make -i all # Best effort using -i
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2

.github/workflows/container.yml

@@ -0,0 +1,75 @@
+name: Container
+on:
+  push:
+    branches:
+      - stable
+      - dev
+    tags:
+      - "*"
+  pull_request:
+    branches:
+      - dev # No need for stable-pull-request, as that equals dev-push
+
+jobs:
+  build-and-test-amd64:
+    name: Test amd64 image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Build amd64
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          tags: aflplusplus:test-amd64
+          load: true
+          cache-to: type=gha,mode=max
+          build-args: |
+            TEST_BUILD=1
+      - name: Test amd64
+        run: >
+          docker run --rm aflplusplus:test-amd64 bash -c "
+          apt-get update && 
+          apt-get install -y libcmocka-dev && 
+          make -i tests
+          "
+
+  push:
+    name: Push amd64 and arm64 images
+    runs-on: ubuntu-latest
+    needs:
+      - build-and-test-amd64
+    if: ${{ github.event_name == 'push' && github.repository == 'AFLplusplus/AFLplusplus' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: arm64
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to docker.io
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+      - name: Set tags to push
+        id: push-tags
+        run: |
+          PUSH_TAGS=docker.io/aflplusplus/aflplusplus:${GITHUB_REF_NAME}
+          if [ "${GITHUB_REF_NAME}" = "stable" ]; then
+            PUSH_TAGS=${PUSH_TAGS},docker.io/aflplusplus/aflplusplus:latest
+          fi
+          export PUSH_TAGS
+          echo "::set-output name=PUSH_TAGS::${PUSH_TAGS}"
+      - name: Push to docker.io registry
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.push-tags.outputs.PUSH_TAGS }}
+          cache-from: type=gha

.github/workflows/rust_custom_mutator.yml

@@ -2,9 +2,12 @@ name: Rust Custom Mutators
 
 on:
   push:
-    branches: [ stable, dev ]
+    branches:
+      - stable
+      - dev
   pull_request:
-    branches: [ stable, dev ]
+    branches:
+      - dev # No need for stable-pull-request, as that equals dev-push
 
 jobs:
   test:
@@ -15,9 +18,9 @@ jobs:
         working-directory: custom_mutators/rust
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-22.04, ubuntu-20.04]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
         with:
@@ -27,4 +30,4 @@ jobs:
       - name: Run General Tests
         run: cargo test
       - name: Run Tests for afl_internals feature flag
-        run: cd custom_mutator && cargo test --features=afl_internals
+        run: cd custom_mutator && cargo test --features=afl_internals

.gitignore

@@ -1,99 +1,113 @@
-.test
-.test2
-.sync_tmp
-.vscode
+!coresight_mode
+!coresight_mode/coresight-trace
+*.dSYM
 *.o
+*.o.tmp
+*.pyc
 *.so
 *.swp
-*.pyc
-*.dSYM
-as
-a.out
-ld
-in
-out
-core*
-compile_commands.json
+.sync_tmp
+.test
+.test2
+.vscode
+afl-addseeds.8
 afl-analyze
+afl-analyze.8
 afl-as
+afl-as.8
+afl-c++
+afl-c++.8
+afl-cc
+afl-cc.8
 afl-clang
 afl-clang++
 afl-clang-fast
 afl-clang-fast++
-afl-clang-lto
-afl-clang-lto++
-afl-fuzz
-afl-g++
-afl-gcc
-afl-gcc-fast
-afl-g++-fast
-afl-gotcpu
-afl-ld
-afl-ld-lto
-afl-cs-proxy
-afl-qemu-trace
-afl-showmap
-afl-tmin
-afl-analyze.8
-afl-as.8
 afl-clang-fast++.8
 afl-clang-fast.8
-afl-clang-lto.8
+afl-clang-lto
+afl-clang-lto++
 afl-clang-lto++.8
+afl-clang-lto.8
 afl-cmin.8
 afl-cmin.bash.8
+afl-cs-proxy
+afl-frida-trace.so
+afl-fuzz
 afl-fuzz.8
-afl-c++.8
-afl-cc.8
-afl-gcc.8
+afl-g++
 afl-g++.8
+afl-gcc
+afl-gcc.8
+afl-gcc-fast
 afl-gcc-fast.8
+afl-g++-fast
 afl-g++-fast.8
+afl-gotcpu
 afl-gotcpu.8
-afl-plot.8
-afl-showmap.8
-afl-system-config.8
-afl-tmin.8
-afl-whatsup.8
-afl-persistent-config.8
-afl-c++
-afl-cc
+afl-ld
+afl-ld-lto
 afl-lto
 afl-lto++
 afl-lto++.8
 afl-lto.8
+afl-persistent-config.8
+afl-plot.8
+afl-qemu-trace
+afl-showmap
+afl-showmap.8
+afl-system-config.8
+afl-tmin
+afl-tmin.8
+afl-whatsup.8
+a.out
+as
+compile_commands.json
+core*
+examples/afl_frida/afl-frida
+examples/afl_frida/frida-gum-example.c
+examples/afl_frida/frida-gum.h
+examples/afl_frida/libtestinstr.so
+examples/afl_network_proxy/afl-network-client
+examples/afl_network_proxy/afl-network-server
+examples/aflpp_driver/libAFLDriver.a
+examples/aflpp_driver/libAFLQemuDriver.a
+gmon.out
+in
+ld
+libAFLDriver.a
+libAFLQemuDriver.a
+out
 qemu_mode/libcompcov/compcovtest
 qemu_mode/qemu-*
 qemu_mode/qemuafl
-unicorn_mode/samples/*/\.test-*
-unicorn_mode/samples/*/output/
+test/.afl_performance
+test-instr
+test/output
+test/test-c
+test/test-cmplog
+test/test-compcov
+test/test-instr.ts
+test/test-persistent
+test/unittests/unit_hash
+test/unittests/unit_list
 test/unittests/unit_maybe_alloc
 test/unittests/unit_preallocable
-test/unittests/unit_list
 test/unittests/unit_rand
-test/unittests/unit_hash
-examples/afl_network_proxy/afl-network-server
-examples/afl_network_proxy/afl-network-client
-examples/afl_frida/afl-frida
-examples/afl_frida/libtestinstr.so
-examples/afl_frida/frida-gum-example.c
-examples/afl_frida/frida-gum.h
-examples/aflpp_driver/libAFLDriver.a
-examples/aflpp_driver/libAFLQemuDriver.a
-libAFLDriver.a
-libAFLQemuDriver.a
-test/.afl_performance
-gmon.out
-afl-frida-trace.so
+unicorn_mode/samples/*/output/
+unicorn_mode/samples/*/\.test-*
 utils/afl_network_proxy/afl-network-client
 utils/afl_network_proxy/afl-network-server
-utils/plot_ui/afl-plot-ui
-*.o.tmp
 utils/afl_proxy/afl-proxy
+utils/bench/hash
 utils/optimin/build
 utils/optimin/optimin
 utils/persistent_mode/persistent_demo
 utils/persistent_mode/persistent_demo_new
+utils/persistent_mode/persistent_demo_new_compat
 utils/persistent_mode/test-instr
-!coresight_mode
-!coresight_mode/coresight-trace
+utils/replay_record/persistent_demo_replay
+utils/replay_record/persistent_demo_replay_compat
+utils/replay_record/persistent_demo_replay_argparse
+utils/plot_ui/afl-plot-ui
+vuln_prog

.gitmodules

@@ -10,12 +10,18 @@
 [submodule "custom_mutators/gramatron/json-c"]
 	path = custom_mutators/gramatron/json-c
 	url = https://github.com/json-c/json-c
-[submodule "utils/optimin/EvalMaxSAT"]
-	path = utils/optimin/EvalMaxSAT
-	url = https://github.com/FlorentAvellaneda/EvalMaxSAT
 [submodule "coresight_mode/patchelf"]
 	path = coresight_mode/patchelf
 	url = https://github.com/NixOS/patchelf.git
 [submodule "coresight_mode/coresight-trace"]
 	path = coresight_mode/coresight-trace
 	url = https://github.com/RICSecLab/coresight-trace.git
+[submodule "nyx_mode/libnyx"]
+	path = nyx_mode/libnyx
+	url = https://github.com/nyx-fuzz/libnyx.git
+[submodule "nyx_mode/packer"]
+	path = nyx_mode/packer
+	url = https://github.com/nyx-fuzz/packer.git
+[submodule "nyx_mode/QEMU-Nyx"]
+	path = nyx_mode/QEMU-Nyx
+	url = https://github.com/nyx-fuzz/QEMU-Nyx

Android.bp

@@ -1,3 +1,11 @@
+//
+// NOTE: This file is outdated. None of the AFL++ team uses Android hence
+//       we need users to keep this updated.
+//       In the current state it will likely fail, please send fixes!
+//       Also, this should build frida_mode.
+//
+
+
 cc_defaults {
   name: "afl-defaults",
 
@@ -68,6 +76,7 @@ cc_binary {
   srcs: [
     "src/afl-fuzz*.c",
     "src/afl-common.c",
+    "src/afl-forkserver.c",
     "src/afl-sharedmem.c",
     "src/afl-forkserver.c",
     "src/afl-performance.c",
@@ -175,7 +184,7 @@ cc_binary_host {
 }
 
 cc_library_static {
-  name: "afl-llvm-rt",
+  name: "afl-compiler-rt",
   compile_multilib: "64",
   vendor_available: true,
   host_supported: true,
@@ -225,6 +234,7 @@ cc_library_headers {
   ],
 }
 
+/*
 cc_prebuilt_library_static {
   name: "libfrida-gum",
   compile_multilib: "64",
@@ -272,7 +282,7 @@ cc_binary {
   ],
 
   static_libs: [
-    "afl-llvm-rt",
+    "afl-compiler-rt",
     "libfrida-gum",
   ],
 
@@ -290,6 +300,7 @@ cc_binary {
     "utils/afl_frida/android",
   ],
 }
+*/
 
 cc_binary {
   name: "afl-fuzz-32",
@@ -346,7 +357,7 @@ cc_binary_host {
 }
 
 cc_library_static {
-  name: "afl-llvm-rt-32",
+  name: "afl-compiler-rt-32",
   compile_multilib: "32",
   vendor_available: true,
   host_supported: true,
@@ -385,6 +396,7 @@ cc_library_static {
   ],
 }
 
+/*
 cc_prebuilt_library_static {
   name: "libfrida-gum-32",
   compile_multilib: "32",
@@ -400,6 +412,7 @@ cc_prebuilt_library_static {
     "utils/afl_frida/android/arm",
   ],
 }
+*/
 
 subdirs = [
   "custom_mutators",

CITATION.cff

@@ -0,0 +1,31 @@
+cff-version: 1.2.0
+message: "If you use this software, please cite it as below."
+authors:
+  - given-names: Marc
+    family-names: Heuse
+    email: mh@mh-sec.de
+  - given-names: Heiko
+    family-names: Eißfeldt
+    email: heiko.eissfeldt@hexco.de
+  - given-names: Andrea
+    family-names: Fioraldi
+    email: andreafioraldi@gmail.com
+  - given-names: Dominik
+    family-names: Maier
+    email: mail@dmnk.co
+title: "AFL++"
+version: 4.00c
+type: software
+date-released: 2022-01-26
+url: "https://github.com/AFLplusplus/AFLplusplus"
+keywords:
+  - fuzzing
+  - fuzzer
+  - fuzz-testing
+  - instrumentation
+  - afl-fuzz
+  - qemu
+  - llvm
+  - unicorn-emulator
+  - security
+license: AGPL-3.0-or-later

Dockerfile

@@ -1,75 +1,97 @@
 #
-# This Dockerfile for AFLplusplus uses Ubuntu 20.04 focal and
-# installs LLVM 11 from llvm.org for afl-clang-lto support :-)
-# It also installs gcc/g++ 10 from the Ubuntu development platform
-# since focal has gcc-10 but not g++-10 ...
+# This Dockerfile for AFLplusplus uses Ubuntu 22.04 jammy and
+# installs LLVM 14 for afl-clang-lto support.
+#
+# GCC 11 is used instead of 12 because genhtml for afl-cov doesn't like it.
 #
 
-FROM ubuntu:20.04 AS aflplusplus
-LABEL "maintainer"="afl++ team <afl@aflplus.plus>"
-LABEL "about"="AFLplusplus docker image"
+FROM ubuntu:22.04 AS aflplusplus
+LABEL "maintainer"="AFL++ team <afl@aflplus.plus>"
+LABEL "about"="AFLplusplus container image"
+
+### Comment out to enable these features
+# Only available on specific ARM64 boards
+ENV NO_CORESIGHT=1
+# Possible but unlikely in a docker container
+ENV NO_NYX=1
+
+### Only change these if you know what you are doing:
+# Current recommended LLVM version is 16
+ENV LLVM_VERSION=16
+# GCC 12 is producing compile errors for some targets so we stay at GCC 11
+ENV GCC_VERSION=11
+
+### No changes beyond the point unless you know what you are doing :)
 
 ARG DEBIAN_FRONTEND=noninteractive
 
-env NO_ARCH_OPT 1
-
-RUN apt-get update && \
-    apt-get -y install --no-install-suggests --no-install-recommends \
-    automake \
-    cmake \
-    meson \
-    ninja-build \
-    bison flex \
-    build-essential \
-    git \
-    python3 python3-dev python3-setuptools python-is-python3 \
-    libtool libtool-bin \
-    libglib2.0-dev \
-    wget vim jupp nano bash-completion less \
-    apt-utils apt-transport-https ca-certificates gnupg dialog \
-    libpixman-1-dev \
-    gnuplot-nox \
-    && rm -rf /var/lib/apt/lists/*
-
-RUN echo "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main" >> /etc/apt/sources.list && \
-    wget -qO - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
-
-RUN echo "deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu focal main" >> /etc/apt/sources.list && \
-    apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 1E9377A2BA9EF27F
+ENV NO_ARCH_OPT=1
+ENV IS_DOCKER=1
 
 RUN apt-get update && apt-get full-upgrade -y && \
-    apt-get -y install --no-install-suggests --no-install-recommends \
-    gcc-10 g++-10 gcc-10-plugin-dev gcc-10-multilib gcc-multilib gdb lcov \
-    clang-12 clang-tools-12 libc++1-12 libc++-12-dev \
-    libc++abi1-12 libc++abi-12-dev libclang1-12 libclang-12-dev \
-    libclang-common-12-dev libclang-cpp12 libclang-cpp12-dev liblld-12 \
-    liblld-12-dev liblldb-12 liblldb-12-dev libllvm12 libomp-12-dev \
-    libomp5-12 lld-12 lldb-12 llvm-12 llvm-12-dev llvm-12-runtime llvm-12-tools \
-    && rm -rf /var/lib/apt/lists/*
+    apt-get install -y --no-install-recommends wget ca-certificates apt-utils && \
+    rm -rf /var/lib/apt/lists/*
 
-RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 0
-RUN update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 0
+RUN echo "deb [signed-by=/etc/apt/keyrings/llvm-snapshot.gpg.key] http://apt.llvm.org/jammy/ llvm-toolchain-jammy-${LLVM_VERSION} main" > /etc/apt/sources.list.d/llvm.list && \
+    wget -qO /etc/apt/keyrings/llvm-snapshot.gpg.key https://apt.llvm.org/llvm-snapshot.gpg.key
 
-ENV LLVM_CONFIG=llvm-config-12
+RUN apt-get update && \
+    apt-get -y install --no-install-recommends \
+    make cmake automake meson ninja-build bison flex \
+    git xz-utils bzip2 wget jupp nano bash-completion less vim joe ssh psmisc \
+    python3 python3-dev python3-pip python-is-python3 \
+    libtool libtool-bin libglib2.0-dev \
+    apt-transport-https gnupg dialog \
+    gnuplot-nox libpixman-1-dev bc \
+    gcc-${GCC_VERSION} g++-${GCC_VERSION} gcc-${GCC_VERSION}-plugin-dev gdb lcov \
+    clang-${LLVM_VERSION} clang-tools-${LLVM_VERSION} libc++1-${LLVM_VERSION} \
+    libc++-${LLVM_VERSION}-dev libc++abi1-${LLVM_VERSION} libc++abi-${LLVM_VERSION}-dev \
+    libclang1-${LLVM_VERSION} libclang-${LLVM_VERSION}-dev \
+    libclang-common-${LLVM_VERSION}-dev libclang-rt-${LLVM_VERSION}-dev libclang-cpp${LLVM_VERSION} \
+    libclang-cpp${LLVM_VERSION}-dev liblld-${LLVM_VERSION} \
+    liblld-${LLVM_VERSION}-dev liblldb-${LLVM_VERSION} liblldb-${LLVM_VERSION}-dev \
+    libllvm${LLVM_VERSION} libomp-${LLVM_VERSION}-dev libomp5-${LLVM_VERSION} \
+    lld-${LLVM_VERSION} lldb-${LLVM_VERSION} llvm-${LLVM_VERSION} \
+    llvm-${LLVM_VERSION}-dev llvm-${LLVM_VERSION}-runtime llvm-${LLVM_VERSION}-tools \
+    $([ "$(dpkg --print-architecture)" = "amd64" ] && echo gcc-${GCC_VERSION}-multilib gcc-multilib) \
+    $([ "$(dpkg --print-architecture)" = "arm64" ] && echo libcapstone-dev) && \
+    rm -rf /var/lib/apt/lists/*
+    # gcc-multilib is only used for -m32 support on x86
+    # libcapstone-dev is used for coresight_mode on arm64
+
+RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-${GCC_VERSION} 0 && \
+    update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-${GCC_VERSION} 0 && \
+    update-alternatives --install /usr/bin/clang clang /usr/bin/clang-${LLVM_VERSION} 0 && \
+    update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-${LLVM_VERSION} 0
+
+RUN wget -qO- https://sh.rustup.rs | CARGO_HOME=/etc/cargo sh -s -- -y -q --no-modify-path
+ENV PATH=$PATH:/etc/cargo/bin
+
+RUN apt clean -y
+
+ENV LLVM_CONFIG=llvm-config-${LLVM_VERSION}
 ENV AFL_SKIP_CPUFREQ=1
 ENV AFL_TRY_AFFINITY=1
 ENV AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES=1
 
-RUN git clone --depth=1 https://github.com/vanhauser-thc/afl-cov /afl-cov
-RUN cd /afl-cov && make install && cd ..
+RUN git clone --depth=1 https://github.com/vanhauser-thc/afl-cov && \
+    (cd afl-cov && make install) && rm -rf afl-cov
 
-COPY . /AFLplusplus
 WORKDIR /AFLplusplus
+COPY . .
 
-RUN export CC=gcc-10 && export CXX=g++-10 && make clean && \
-    make distrib && make install && make clean
+ARG CC=gcc-$GCC_VERSION
+ARG CXX=g++-$GCC_VERSION
 
-RUN sh -c 'echo set encoding=utf-8 > /root/.vimrc'
-RUN echo '. /etc/bash_completion' >> ~/.bashrc
-RUN echo 'alias joe="joe --wordwrap --joe_state -nobackup"' >> ~/.bashrc
-RUN echo "export PS1='"'[afl++ \h] \w$(__git_ps1) \$ '"'" >> ~/.bashrc
-ENV IS_DOCKER="1"
+# Used in CI to prevent a 'make clean' which would remove the binaries to be tested
+ARG TEST_BUILD
 
-# Disabled until we have the container ready
-#COPY --from=aflplusplus/afl-dyninst /usr/local/lib/libdyninstAPI_RT.so /usr/local/lib/libdyninstAPI_RT.so
-#COPY --from=aflplusplus/afl-dyninst /afl-dyninst/libAflDyninst.so /usr/local/lib/libAflDyninst.so
+RUN sed -i.bak 's/^	-/	/g' GNUmakefile && \
+    make clean && make distrib && \
+    ([ "${TEST_BUILD}" ] || (make install)) && \
+    mv GNUmakefile.bak GNUmakefile
+
+RUN echo "set encoding=utf-8" > /root/.vimrc && \
+    echo ". /etc/bash_completion" >> ~/.bashrc && \
+    echo 'alias joe="joe --wordwrap --joe_state -nobackup"' >> ~/.bashrc && \
+    echo "export PS1='"'[AFL++ \h] \w \$ '"'" >> ~/.bashrc

GNUmakefile

@@ -32,23 +32,27 @@ VERSION     = $(shell grep '^$(HASH)define VERSION ' ../config.h | cut -d '"' -f
 # PROGS intentionally omit afl-as, which gets installed elsewhere.
 
 PROGS       = afl-fuzz afl-showmap afl-tmin afl-gotcpu afl-analyze
-SH_PROGS    = afl-plot afl-cmin afl-cmin.bash afl-whatsup afl-system-config afl-persistent-config afl-cc
+SH_PROGS    = afl-plot afl-cmin afl-cmin.bash afl-whatsup afl-addseeds afl-system-config afl-persistent-config afl-cc
 MANPAGES=$(foreach p, $(PROGS) $(SH_PROGS), $(p).8) afl-as.8
 ASAN_OPTIONS=detect_leaks=0
 
 SYS = $(shell uname -s)
 ARCH = $(shell uname -m)
 
-$(info [*] Compiling afl++ for OS $(SYS) on ARCH $(ARCH))
+$(info [*] Compiling AFL++ for OS $(SYS) on ARCH $(ARCH))
 
 ifdef NO_SPLICING
   override CFLAGS_OPT += -DNO_SPLICING
 endif
 
+ifdef NO_UTF
+  override CFLAGS_OPT += -DFANCY_BOXES_NO_UTF
+endif
+
 ifdef ASAN_BUILD
   $(info Compiling ASAN version of binaries)
   override CFLAGS += $(ASAN_CFLAGS)
-  LDFLAGS += $(ASAN_LDFLAGS)
+  override LDFLAGS += $(ASAN_LDFLAGS)
 endif
 ifdef UBSAN_BUILD
   $(info Compiling UBSAN version of binaries)
@@ -62,6 +66,10 @@ ifdef MSAN_BUILD
   override LDFLAGS += -fsanitize=memory
 endif
 
+ifdef CODE_COVERAGE
+  override CFLAGS += -D__AFL_CODE_COVERAGE=1
+endif
+
 ifeq "$(findstring android, $(shell $(CC) --version 2>/dev/null))" ""
 ifeq "$(shell echo 'int main() {return 0; }' | $(CC) $(CFLAGS) -Werror -x c - -flto=full -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
 	CFLAGS_FLTO ?= -flto=full
@@ -76,30 +84,44 @@ else
 endif
 endif
 
-ifeq "$(shell echo 'int main() {return 0; }' | $(CC) -fno-move-loop-invariants -fdisable-tree-cunrolli -x c - -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
-	SPECIAL_PERFORMANCE += -fno-move-loop-invariants -fdisable-tree-cunrolli
+ifdef PERFORMANCE
+  SPECIAL_PERFORMANCE := -D_AFL_SPECIAL_PERFORMANCE
+  ifeq "$(SYS)" "Linux"
+    ifeq "$(shell grep avx2 /proc/cpuinfo)" ""
+    else
+  	SPECIAL_PERFORMANCE += -mavx2 -D_HAVE_AVX2
+    endif
+  endif
+  ifeq "$(shell echo 'int main() {return 0; }' | $(CC) $(CFLAGS) -Werror -x c - -march=native -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
+	HAVE_MARCHNATIVE = 1
+	SPECIAL_PERFORMANCE += -march=native
+  endif
+  $(info SPECIAL_PERFORMANCE=$(SPECIAL_PERFORMANCE))
+else
+  SPECIAL_PERFORMANCE :=
 endif
 
-#ifeq "$(shell echo 'int main() {return 0; }' | $(CC) $(CFLAGS) -Werror -x c - -march=native -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
-#  ifndef SOURCE_DATE_EPOCH
-#    HAVE_MARCHNATIVE = 1
-#    CFLAGS_OPT += -march=native
-#  endif
-#endif
-
 ifneq "$(SYS)" "Darwin"
-  #ifeq "$(HAVE_MARCHNATIVE)" "1"
-  #  SPECIAL_PERFORMANCE += -march=native
-  #endif
- # OS X does not like _FORTIFY_SOURCE=2
-  ifndef DEBUG
-    CFLAGS_OPT += -D_FORTIFY_SOURCE=2
-  endif
+ #ifeq "$(HAVE_MARCHNATIVE)" "1"
+ #  SPECIAL_PERFORMANCE += -march=native
+ #endif
+ #ifndef DEBUG
+ #  override CFLAGS_OPT += -D_FORTIFY_SOURCE=1
+ #endif
+else
+  # On some odd MacOS system configurations, the Xcode sdk path is not set correctly
+  SDK_LD = -L$(shell xcrun --show-sdk-path)/usr/lib
+  override LDFLAGS += $(SDK_LD)
+endif
+
+COMPILER_TYPE=$(shell $(CC) --version|grep "Free Software Foundation")
+ifneq "$(COMPILER_TYPE)" ""
+  #$(info gcc is being used)
+  override CFLAGS_OPT += -Wno-error=format-truncation -Wno-format-truncation
 endif
 
 ifeq "$(SYS)" "SunOS"
-  CFLAGS_OPT += -Wno-format-truncation
-  LDFLAGS = -lkstat -lrt
+  override LDFLAGS = -lkstat -lrt -lsocket -lnsl
 endif
 
 ifdef STATIC
@@ -109,8 +131,8 @@ ifdef STATIC
   PYFLAGS=
   PYTHON_INCLUDE = /
 
-  CFLAGS_OPT += -static
-  LDFLAGS += -lm -lpthread -lz -lutil
+  override CFLAGS_OPT += -static
+  override LDFLAGS += -lm -lpthread -lz -lutil
 endif
 
 ifdef PROFILING
@@ -138,12 +160,13 @@ ifdef DEBUG
   $(info Compiling DEBUG version of binaries)
   override CFLAGS += -ggdb3 -O0 -Wall -Wextra -Werror $(CFLAGS_OPT)
 else
-  CFLAGS ?= -O3 -funroll-loops $(CFLAGS_OPT)
+  CFLAGS ?= -O2 $(CFLAGS_OPT) # -funroll-loops is slower on modern compilers
 endif
 
-override CFLAGS += -g -Wno-pointer-sign -Wno-variadic-macros -Wall -Wextra -Wpointer-arith \
-			  -I include/ -DAFL_PATH=\"$(HELPER_PATH)\" \
-			  -DBIN_PATH=\"$(BIN_PATH)\" -DDOC_PATH=\"$(DOC_PATH)\"
+override CFLAGS += -g -Wno-pointer-sign -Wno-variadic-macros -Wall -Wextra -Wno-pointer-arith \
+			-fPIC -I include/ -DAFL_PATH=\"$(HELPER_PATH)\"  \
+			-DBIN_PATH=\"$(BIN_PATH)\" -DDOC_PATH=\"$(DOC_PATH)\"
+# -fstack-protector
 
 ifeq "$(SYS)" "FreeBSD"
   override CFLAGS  += -I /usr/local/include/
@@ -167,22 +190,22 @@ endif
 
 ifeq "$(SYS)" "Haiku"
   SHMAT_OK=0
-  override CFLAGS  += -DUSEMMAP=1 -Wno-error=format -fPIC
+  override CFLAGS  += -DUSEMMAP=1 -Wno-error=format
   override LDFLAGS += -Wno-deprecated-declarations -lgnu -lnetwork
-  SPECIAL_PERFORMANCE += -DUSEMMAP=1
+  #SPECIAL_PERFORMANCE += -DUSEMMAP=1
 endif
 
 AFL_FUZZ_FILES = $(wildcard src/afl-fuzz*.c)
 
 ifneq "$(shell command -v python3m 2>/dev/null)" ""
   ifneq "$(shell command -v python3m-config 2>/dev/null)" ""
-    PYTHON_INCLUDE  ?= $(shell python3m-config --includes)
-    PYTHON_VERSION  ?= $(strip $(shell python3m --version 2>&1))
+    PYTHON_INCLUDE  := $(shell python3m-config --includes)
+    PYTHON_VERSION  := $(strip $(shell python3m --version 2>&1))
     # Starting with python3.8, we need to pass the `embed` flag. Earlier versions didn't know this flag.
     ifeq "$(shell python3m-config --embed --libs 2>/dev/null | grep -q lpython && echo 1 )" "1"
-      PYTHON_LIB      ?= $(shell python3m-config --libs --embed --ldflags)
+      PYTHON_LIB      := $(shell python3m-config --libs --embed --ldflags)
     else
-      PYTHON_LIB      ?= $(shell python3m-config --ldflags)
+      PYTHON_LIB      := $(shell python3m-config --ldflags)
     endif
   endif
 endif
@@ -190,13 +213,13 @@ endif
 ifeq "$(PYTHON_INCLUDE)" ""
   ifneq "$(shell command -v python3 2>/dev/null)" ""
     ifneq "$(shell command -v python3-config 2>/dev/null)" ""
-      PYTHON_INCLUDE  ?= $(shell python3-config --includes)
-      PYTHON_VERSION  ?= $(strip $(shell python3 --version 2>&1))
-      # Starting with python3.8, we need to pass the `embed` flag. Earier versions didn't know this flag.
+      PYTHON_INCLUDE  := $(shell python3-config --includes)
+      PYTHON_VERSION  := $(strip $(shell python3 --version 2>&1))
+      # Starting with python3.8, we need to pass the `embed` flag. Earlier versions didn't know this flag.
       ifeq "$(shell python3-config --embed --libs 2>/dev/null | grep -q lpython && echo 1 )" "1"
-        PYTHON_LIB      ?= $(shell python3-config --libs --embed --ldflags)
+        PYTHON_LIB      := $(shell python3-config --libs --embed --ldflags)
       else
-        PYTHON_LIB      ?= $(shell python3-config --ldflags)
+        PYTHON_LIB      := $(shell python3-config --ldflags)
       endif
     endif
   endif
@@ -205,9 +228,9 @@ endif
 ifeq "$(PYTHON_INCLUDE)" ""
   ifneq "$(shell command -v python 2>/dev/null)" ""
     ifneq "$(shell command -v python-config 2>/dev/null)" ""
-      PYTHON_INCLUDE  ?= $(shell python-config --includes)
-      PYTHON_LIB      ?= $(shell python-config --ldflags)
-      PYTHON_VERSION  ?= $(strip $(shell python --version 2>&1))
+      PYTHON_INCLUDE  := $(shell python-config --includes)
+      PYTHON_LIB      := $(shell python-config --ldflags)
+      PYTHON_VERSION  := $(strip $(shell python --version 2>&1))
     endif
   endif
 endif
@@ -216,9 +239,9 @@ endif
 ifeq "$(PYTHON_INCLUDE)" ""
   ifneq "$(shell command -v python3.7 2>/dev/null)" ""
     ifneq "$(shell command -v python3.7-config 2>/dev/null)" ""
-      PYTHON_INCLUDE  ?= $(shell python3.7-config --includes)
-      PYTHON_LIB      ?= $(shell python3.7-config --ldflags)
-      PYTHON_VERSION  ?= $(strip $(shell python3.7 --version 2>&1))
+      PYTHON_INCLUDE  := $(shell python3.7-config --includes)
+      PYTHON_LIB      := $(shell python3.7-config --ldflags)
+      PYTHON_VERSION  := $(strip $(shell python3.7 --version 2>&1))
     endif
   endif
 endif
@@ -227,9 +250,9 @@ endif
 ifeq "$(PYTHON_INCLUDE)" ""
   ifneq "$(shell command -v python2.7 2>/dev/null)" ""
     ifneq "$(shell command -v python2.7-config 2>/dev/null)" ""
-      PYTHON_INCLUDE  ?= $(shell python2.7-config --includes)
-      PYTHON_LIB      ?= $(shell python2.7-config --ldflags)
-      PYTHON_VERSION  ?= $(strip $(shell python2.7 --version 2>&1))
+      PYTHON_INCLUDE  := $(shell python2.7-config --includes)
+      PYTHON_LIB      := $(shell python2.7-config --ldflags)
+      PYTHON_VERSION  := $(strip $(shell python2.7 --version 2>&1))
     endif
   endif
 endif
@@ -241,25 +264,22 @@ else
 endif
 
 ifneq "$(filter Linux GNU%,$(SYS))" ""
- ifndef DEBUG
-  override CFLAGS += -D_FORTIFY_SOURCE=2
- endif
   override LDFLAGS += -ldl -lrt -lm
 endif
 
 ifneq "$(findstring FreeBSD, $(SYS))" ""
   override CFLAGS  += -pthread
-  override LDFLAGS += -lpthread
+  override LDFLAGS += -lpthread -lm
 endif
 
 ifneq "$(findstring NetBSD, $(SYS))" ""
   override CFLAGS  += -pthread
-  override LDFLAGS += -lpthread
+  override LDFLAGS += -lpthread -lm
 endif
 
 ifneq "$(findstring OpenBSD, $(SYS))" ""
   override CFLAGS  += -pthread
-  override LDFLAGS += -lpthread
+  override LDFLAGS += -lpthread -lm
 endif
 
 COMM_HDR    = include/alloc-inl.h include/config.h include/debug.h include/types.h
@@ -307,10 +327,21 @@ endif
 .PHONY: all
 all:	test_x86 test_shm test_python ready $(PROGS) afl-as llvm gcc_plugin test_build all_done
 	-$(MAKE) -C utils/aflpp_driver
+	@echo
+	@echo
+	@echo Build Summary:
+	@test -e afl-fuzz && echo "[+] afl-fuzz and supporting tools successfully built" || echo "[-] afl-fuzz could not be built, please set CC to a working compiler"
+	@test -e afl-llvm-pass.so && echo "[+] LLVM basic mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-11 and clang-11 or newer, see docs/INSTALL.md"
+	@test -e SanitizerCoveragePCGUARD.so && echo "[+] LLVM mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-13 and clang-13 or newer, see docs/INSTALL.md"
+	@test -e SanitizerCoverageLTO.so && echo "[+] LLVM LTO mode successfully built" || echo "[-] LLVM LTO mode could not be built, it is optional, if you want it, please install LLVM and LLD 11+. More information at instrumentation/README.lto.md on how to build it"
+ifneq "$(SYS)" "Darwin"
+	@test -e afl-gcc-pass.so && echo "[+] gcc_mode successfully built" || echo "[-] gcc_mode could not be built, it is optional, install gcc-VERSION-plugin-dev to enable this"
+endif
+	@echo
 
 .PHONY: llvm
 llvm:
-	-$(MAKE) -j4 -f GNUmakefile.llvm
+	-$(MAKE) -j$(nproc) -f GNUmakefile.llvm
 	@test -e afl-cc || { echo "[-] Compiling afl-cc failed. You seem not to have a working compiler." ; exit 1; }
 
 .PHONY: gcc_plugin
@@ -345,15 +376,15 @@ performance-test:	source-only
 help:
 	@echo "HELP --- the following make targets exist:"
 	@echo "=========================================="
-	@echo "all: just the main afl++ binaries"
-	@echo "binary-only: everything for binary-only fuzzing: qemu_mode, frida_mode, unicorn_mode, coresight_mode, libdislocator, libtokencap"
-	@echo "source-only: everything for source code fuzzing: gcc_plugin, libdislocator, libtokencap"
+	@echo "all: the main AFL++ binaries and llvm/gcc instrumentation"
+	@echo "binary-only: everything for binary-only fuzzing: frida_mode, nyx_mode, qemu_mode, frida_mode, unicorn_mode, coresight_mode, libdislocator, libtokencap"
+	@echo "source-only: everything for source code fuzzing: nyx_mode, libdislocator, libtokencap"
 	@echo "distrib: everything (for both binary-only and source code fuzzing)"
 	@echo "man: creates simple man pages from the help option of the programs"
 	@echo "install: installs everything you have compiled with the build option above"
 	@echo "clean: cleans everything compiled (not downloads when on a checkout)"
 	@echo "deepclean: cleans everything including downloads"
-	@echo "uninstall: uninstall afl++ from the system"
+	@echo "uninstall: uninstall AFL++ from the system"
 	@echo "code-format: format the code, do this before you commit and send a PR please!"
 	@echo "tests: this runs the test framework. It is more catered for the developers, but if you run into problems this helps pinpointing the problem"
 	@echo "unit: perform unit tests (based on cmocka and GNU linker)"
@@ -364,17 +395,26 @@ help:
 	@echo
 	@echo Known build environment options:
 	@echo "=========================================="
+	@echo "PERFORMANCE - compile with performance options that make the binary not transferable to other systems. Recommended!"
 	@echo STATIC - compile AFL++ static
-	@echo ASAN_BUILD - compiles with memory sanitizer for debug purposes
+	@echo "CODE_COVERAGE - compile the target for code coverage (see docs/instrumentation/README.llvm.md)"
+	@echo ASAN_BUILD - compiles AFL++ with memory sanitizer for debug purposes
+	@echo UBSAN_BUILD - compiles AFL++ tools with undefined behaviour sanitizer for debug purposes
 	@echo DEBUG - no optimization, -ggdb3, all warnings and -Werror
+	@echo LLVM_DEBUG - shows llvm deprecation warnings
 	@echo PROFILING - compile afl-fuzz with profiling information
 	@echo INTROSPECTION - compile afl-fuzz with mutation introspection
 	@echo NO_PYTHON - disable python support
 	@echo NO_SPLICING - disables splicing mutation in afl-fuzz, not recommended for normal fuzzing
+	@echo "NO_UTF - do not use UTF-8 for line rendering in status screen (fallback to G1 box drawing, of vanilla AFL)"
+	@echo NO_NYX - disable building nyx mode dependencies
+	@echo "NO_CORESIGHT - disable building coresight (arm64 only)"
+	@echo NO_UNICORN_ARM64 - disable building unicorn on arm64
+	@echo "WAFL_MODE - enable for WASM fuzzing with https://github.com/fgsect/WAFL"
 	@echo AFL_NO_X86 - if compiling on non-intel/amd platforms
-	@echo "LLVM_CONFIG - if your distro doesn't use the standard name for llvm-config (e.g. Debian)"
+	@echo "LLVM_CONFIG - if your distro doesn't use the standard name for llvm-config (e.g., Debian)"
 	@echo "=========================================="
-	@echo e.g.: make ASAN_BUILD=1
+	@echo e.g.: make LLVM_CONFIG=llvm-config-16
 
 .PHONY: test_x86
 ifndef AFL_NO_X86
@@ -384,7 +424,7 @@ test_x86:
 	@echo "[*] Testing the PATH environment variable..."
 	@test "$${PATH}" != "$${PATH#.:}" && { echo "Please remove current directory '.' from PATH to avoid recursion of 'as', thanks!"; echo; exit 1; } || :
 	@echo "[*] Checking for the ability to compile x86 code..."
-	@echo 'main() { __asm__("xorb %al, %al"); }' | $(CC) $(CFLAGS) -w -x c - -o .test1 || ( echo; echo "Oops, looks like your compiler can't generate x86 code."; echo; echo "Don't panic! You can use the LLVM or QEMU mode, but see docs/INSTALL first."; echo "(To ignore this error, set AFL_NO_X86=1 and try again.)"; echo; exit 1 )
+	@echo 'int main() { __asm__("xorb %al, %al"); }' | $(CC) $(CFLAGS) $(LDFLAGS) -w -x c - -o .test1 || ( echo; echo "Oops, looks like your compiler can't generate x86 code."; echo; echo "Don't panic! You can use the LLVM or QEMU mode, but see docs/INSTALL first."; echo "(To ignore this error, set AFL_NO_X86=1 and try again.)"; echo; exit 1 )
 	@rm -f .test1
 else
 test_x86:
@@ -408,43 +448,43 @@ test_python:
 	@echo "[+] $(PYTHON_VERSION) support seems to be working."
 else
 test_python:
-	@echo "[-] You seem to need to install the package python3-dev, python2-dev or python-dev (and perhaps python[23]-apt), but it is optional so we continue"
+	@echo "[-] You seem to need to install the package python3-dev or python-dev (and perhaps python[3]-apt), but it is optional so we continue"
 endif
 
 .PHONY: ready
 ready:
-	@echo "[+] Everything seems to be working, ready to compile."
+	@echo "[+] Everything seems to be working, ready to compile. ($(shell $(CC) --version 2>&1|head -n 1))"
 
 afl-as: src/afl-as.c include/afl-as.h $(COMM_HDR) | test_x86
 	$(CC) $(CFLAGS) src/$@.c -o $@ $(LDFLAGS)
 	@ln -sf afl-as as
 
 src/afl-performance.o : $(COMM_HDR) src/afl-performance.c include/hash.h
-	$(CC) $(CFLAGS) -Iinclude $(SPECIAL_PERFORMANCE) -O3 -fno-unroll-loops -c src/afl-performance.c -o src/afl-performance.o
+	$(CC) $(CFLAGS) $(CFLAGS_OPT) $(SPECIAL_PERFORMANCE) -Iinclude -c src/afl-performance.c -o src/afl-performance.o
 
 src/afl-common.o : $(COMM_HDR) src/afl-common.c include/common.h
-	$(CC) $(CFLAGS) $(CFLAGS_FLTO) -c src/afl-common.c -o src/afl-common.o
+	$(CC) $(CFLAGS) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) -c src/afl-common.c -o src/afl-common.o
 
 src/afl-forkserver.o : $(COMM_HDR) src/afl-forkserver.c include/forkserver.h
-	$(CC) $(CFLAGS) $(CFLAGS_FLTO) -c src/afl-forkserver.c -o src/afl-forkserver.o
+	$(CC) $(CFLAGS) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) -c src/afl-forkserver.c -o src/afl-forkserver.o
 
 src/afl-sharedmem.o : $(COMM_HDR) src/afl-sharedmem.c include/sharedmem.h
-	$(CC) $(CFLAGS) $(CFLAGS_FLTO) -c src/afl-sharedmem.c -o src/afl-sharedmem.o
+	$(CC) $(CFLAGS) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) -c src/afl-sharedmem.c -o src/afl-sharedmem.o
 
-afl-fuzz: $(COMM_HDR) include/afl-fuzz.h $(AFL_FUZZ_FILES) src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o | test_x86
-	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) $(AFL_FUZZ_FILES) src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o -o $@ $(PYFLAGS) $(LDFLAGS) -lm
+afl-fuzz: $(COMM_HDR) include/afl-fuzz.h $(AFL_FUZZ_FILES) src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o src/hashmap.c | test_x86
+	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) -Wno-shift-count-overflow $(AFL_FUZZ_FILES) src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o src/hashmap.c -o $@ $(PYFLAGS) $(LDFLAGS) -lm
 
 afl-showmap: src/afl-showmap.c src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o $(COMM_HDR) | test_x86
-	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) src/$@.c src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o -o $@ $(LDFLAGS)
+	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) src/$@.c src/afl-fuzz-mutators.c src/afl-fuzz-python.c src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o -o $@ $(PYFLAGS) $(LDFLAGS)
 
 afl-tmin: src/afl-tmin.c src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o $(COMM_HDR) | test_x86
-	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) src/$@.c src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o -o $@ $(LDFLAGS)
+	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) src/$@.c src/afl-common.o src/afl-sharedmem.o src/afl-forkserver.o src/afl-performance.o -o $@ $(LDFLAGS)
 
 afl-analyze: src/afl-analyze.c src/afl-common.o src/afl-sharedmem.o src/afl-performance.o src/afl-forkserver.o $(COMM_HDR) | test_x86
-	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) src/$@.c src/afl-common.o src/afl-sharedmem.o src/afl-performance.o src/afl-forkserver.o -o $@ $(LDFLAGS)
+	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) src/$@.c src/afl-common.o src/afl-sharedmem.o src/afl-performance.o src/afl-forkserver.o -o $@ $(LDFLAGS)
 
 afl-gotcpu: src/afl-gotcpu.c src/afl-common.o $(COMM_HDR) | test_x86
-	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) src/$@.c src/afl-common.o -o $@ $(LDFLAGS)
+	$(CC) $(CFLAGS) $(COMPILE_STATIC) $(CFLAGS_FLTO) $(SPECIAL_PERFORMANCE) src/$@.c src/afl-common.o -o $@ $(LDFLAGS)
 
 .PHONY: document
 document:	afl-fuzz-document
@@ -461,17 +501,17 @@ unit_maybe_alloc: test/unittests/unit_maybe_alloc.o
 	./test/unittests/unit_maybe_alloc
 
 test/unittests/unit_hash.o : $(COMM_HDR) include/alloc-inl.h test/unittests/unit_hash.c $(AFL_FUZZ_FILES) src/afl-performance.o
-	@$(CC) $(CFLAGS) $(ASAN_CFLAGS) -c test/unittests/unit_hash.c -o test/unittests/unit_hash.o
+	@$(CC) $(CFLAGS) $(ASAN_CFLAGS) $(SPECIAL_PERFORMANCE) -c test/unittests/unit_hash.c -o test/unittests/unit_hash.o
 
 unit_hash: test/unittests/unit_hash.o src/afl-performance.o
-	@$(CC) $(CFLAGS) -Wl,--wrap=exit -Wl,--wrap=printf $^ -o test/unittests/unit_hash $(LDFLAGS) $(ASAN_LDFLAGS) -lcmocka
+	@$(CC) $(CFLAGS) $(SPECIAL_PERFORMANCE) -Wl,--wrap=exit -Wl,--wrap=printf $^ -o test/unittests/unit_hash $(LDFLAGS) $(ASAN_LDFLAGS) -lcmocka
 	./test/unittests/unit_hash
 
 test/unittests/unit_rand.o : $(COMM_HDR) include/alloc-inl.h test/unittests/unit_rand.c $(AFL_FUZZ_FILES) src/afl-performance.o
-	@$(CC) $(CFLAGS) $(ASAN_CFLAGS) -c test/unittests/unit_rand.c -o test/unittests/unit_rand.o
+	@$(CC) $(CFLAGS) $(ASAN_CFLAGS) $(SPECIAL_PERFORMANCE) -c test/unittests/unit_rand.c -o test/unittests/unit_rand.o
 
 unit_rand: test/unittests/unit_rand.o src/afl-common.o src/afl-performance.o
-	@$(CC) $(CFLAGS) $(ASAN_CFLAGS) -Wl,--wrap=exit -Wl,--wrap=printf $^ -o test/unittests/unit_rand  $(LDFLAGS) $(ASAN_LDFLAGS) -lcmocka
+	@$(CC) $(CFLAGS) $(ASAN_CFLAGS) $(SPECIAL_PERFORMANCE) -Wl,--wrap=exit -Wl,--wrap=printf $^ -o test/unittests/unit_rand  $(LDFLAGS) $(ASAN_LDFLAGS) -lcmocka
 	./test/unittests/unit_rand
 
 test/unittests/unit_list.o : $(COMM_HDR) include/list.h test/unittests/unit_list.c $(AFL_FUZZ_FILES)
@@ -528,9 +568,9 @@ code-format:
 ifndef AFL_NO_X86
 test_build: afl-cc afl-gcc afl-as afl-showmap
 	@echo "[*] Testing the CC wrapper afl-cc and its instrumentation output..."
-	@unset AFL_MAP_SIZE AFL_USE_UBSAN AFL_USE_CFISAN AFL_USE_LSAN AFL_USE_ASAN AFL_USE_MSAN; ASAN_OPTIONS=detect_leaks=0 AFL_INST_RATIO=100 AFL_PATH=. ./afl-cc test-instr.c -o test-instr 2>&1 || (echo "Oops, afl-cc failed"; exit 1 )
-	ASAN_OPTIONS=detect_leaks=0 ./afl-showmap -m none -q -o .test-instr0 ./test-instr < /dev/null
-	echo 1 | ASAN_OPTIONS=detect_leaks=0 ./afl-showmap -m none -q -o .test-instr1 ./test-instr
+	@unset AFL_MAP_SIZE AFL_USE_UBSAN AFL_USE_CFISAN AFL_USE_LSAN AFL_USE_ASAN AFL_USE_MSAN; ASAN_OPTIONS=detect_leaks=0 AFL_INST_RATIO=100 AFL_PATH=. ./afl-cc test-instr.c $(LDFLAGS) -o test-instr 2>&1 || (echo "Oops, afl-cc failed"; exit 1 )
+	-ASAN_OPTIONS=detect_leaks=0 ./afl-showmap -q -m none -o .test-instr0 ./test-instr < /dev/null
+	-echo 1 | ASAN_OPTIONS=detect_leaks=0 ./afl-showmap -m none -q -o .test-instr1 ./test-instr
 	@rm -f test-instr
 	@cmp -s .test-instr0 .test-instr1; DR="$$?"; rm -f .test-instr0 .test-instr1; if [ "$$DR" = "0" ]; then echo; echo "Oops, the instrumentation of afl-cc does not seem to be behaving correctly!"; echo; echo "Please post to https://github.com/AFLplusplus/AFLplusplus/issues to troubleshoot the issue."; echo; exit 1; fi
 	@echo
@@ -564,24 +604,27 @@ all_done: test_build
 
 .PHONY: clean
 clean:
-	rm -rf $(PROGS) libradamsa.so afl-fuzz-document afl-as as afl-g++ afl-clang afl-clang++ *.o src/*.o *~ a.out core core.[1-9][0-9]* *.stackdump .test .test1 .test2 test-instr .test-instr0 .test-instr1 afl-cs-proxy afl-qemu-trace afl-gcc-fast afl-gcc-pass.so afl-g++-fast ld *.so *.8 test/unittests/*.o test/unittests/unit_maybe_alloc test/unittests/preallocable .afl-* afl-gcc afl-g++ afl-clang afl-clang++ test/unittests/unit_hash test/unittests/unit_rand *.dSYM
+	rm -rf $(PROGS) afl-fuzz-document afl-as as afl-g++ afl-clang afl-clang++ *.o src/*.o *~ a.out core core.[1-9][0-9]* *.stackdump .test .test1 .test2 test-instr .test-instr0 .test-instr1 afl-cs-proxy afl-qemu-trace afl-gcc-fast afl-g++-fast ld *.so *.8 test/unittests/*.o test/unittests/unit_maybe_alloc test/unittests/preallocable .afl-* afl-gcc afl-g++ afl-clang afl-clang++ test/unittests/unit_hash test/unittests/unit_rand *.dSYM lib*.a
 	-$(MAKE) -f GNUmakefile.llvm clean
 	-$(MAKE) -f GNUmakefile.gcc_plugin clean
-	$(MAKE) -C utils/libdislocator clean
-	$(MAKE) -C utils/libtokencap clean
-	$(MAKE) -C utils/aflpp_driver clean
-	$(MAKE) -C utils/afl_network_proxy clean
-	$(MAKE) -C utils/socket_fuzzing clean
-	$(MAKE) -C utils/argv_fuzzing clean
+	-$(MAKE) -C utils/libdislocator clean
+	-$(MAKE) -C utils/libtokencap clean
+	-$(MAKE) -C utils/aflpp_driver clean
+	-$(MAKE) -C utils/afl_network_proxy clean
+	-$(MAKE) -C utils/socket_fuzzing clean
+	-$(MAKE) -C utils/argv_fuzzing clean
 	-$(MAKE) -C utils/plot_ui clean
-	$(MAKE) -C qemu_mode/unsigaction clean
-	$(MAKE) -C qemu_mode/libcompcov clean
-	$(MAKE) -C qemu_mode/libqasan clean
+	-$(MAKE) -C qemu_mode/unsigaction clean
+	-$(MAKE) -C qemu_mode/fastexit clean
+	-$(MAKE) -C qemu_mode/libcompcov clean
+	-$(MAKE) -C qemu_mode/libqasan clean
 	-$(MAKE) -C frida_mode clean
+	rm -rf nyx_mode/packer/linux_initramfs/init.cpio.gz nyx_mode/libnyx/libnyx/target/release/* nyx_mode/QEMU-Nyx/x86_64-softmmu/qemu-system-x86_64
 ifeq "$(IN_REPO)" "1"
 	-test -e coresight_mode/coresight-trace/Makefile && $(MAKE) -C coresight_mode/coresight-trace clean || true
 	-test -e qemu_mode/qemuafl/Makefile && $(MAKE) -C qemu_mode/qemuafl clean || true
-	test -e unicorn_mode/unicornafl/Makefile && $(MAKE) -C unicorn_mode/unicornafl clean || true
+	-test -e unicorn_mode/unicornafl/Makefile && $(MAKE) -C unicorn_mode/unicornafl clean || true
+	-test -e nyx_mode/QEMU-Nyx/Makefile && $(MAKE) -C nyx_mode/QEMU-Nyx clean || true
 else
 	rm -rf coresight_mode/coresight_trace
 	rm -rf qemu_mode/qemuafl
@@ -593,63 +636,140 @@ deepclean:	clean
 	rm -rf coresight_mode/coresight-trace
 	rm -rf unicorn_mode/unicornafl
 	rm -rf qemu_mode/qemuafl
+	rm -rf nyx_mode/libnyx nyx_mode/packer nyx_mode/QEMU-Nyx
 ifeq "$(IN_REPO)" "1"
-# NEVER EVER ACTIVATE THAT!!!!! git reset --hard >/dev/null 2>&1 || true
 	git checkout coresight_mode/coresight-trace
 	git checkout unicorn_mode/unicornafl
 	git checkout qemu_mode/qemuafl
+	git checkout nyx_mode/libnyx
+	git checkout nyx_mode/packer
+	git checkout nyx_mode/QEMU-Nyx
 endif
 
 .PHONY: distrib
 distrib: all
-	-$(MAKE) -j4 -f GNUmakefile.llvm
+	-$(MAKE) -j$(nproc) -f GNUmakefile.llvm
 ifneq "$(SYS)" "Darwin"
 	-$(MAKE) -f GNUmakefile.gcc_plugin
+	-$(MAKE) -C utils/libdislocator
+	-$(MAKE) -C utils/libtokencap
 endif
-	$(MAKE) -C utils/libdislocator
-	$(MAKE) -C utils/libtokencap
-	$(MAKE) -C utils/afl_network_proxy
-	$(MAKE) -C utils/socket_fuzzing
-	$(MAKE) -C utils/argv_fuzzing
+	-$(MAKE) -C utils/afl_network_proxy
+	-$(MAKE) -C utils/socket_fuzzing
+	-$(MAKE) -C utils/argv_fuzzing
 	# -$(MAKE) -C utils/plot_ui
 	-$(MAKE) -C frida_mode
 ifneq "$(SYS)" "Darwin"
 ifeq "$(ARCH)" "aarch64"
+  ifndef NO_CORESIGHT
 	-$(MAKE) -C coresight_mode
+  endif
+endif
+ifeq "$(SYS)" "Linux"
+ifndef NO_NYX
+	-cd nyx_mode && ./build_nyx_support.sh
+endif
 endif
 	-cd qemu_mode && sh ./build_qemu_support.sh
+  ifeq "$(ARCH)" "aarch64"
+    ifndef NO_UNICORN_ARM64
 	-cd unicorn_mode && unset CFLAGS && sh ./build_unicorn_support.sh
+    endif
+  else
+	-cd unicorn_mode && unset CFLAGS && sh ./build_unicorn_support.sh
+  endif
 endif
 
 .PHONY: binary-only
 binary-only: test_shm test_python ready $(PROGS)
-	$(MAKE) -C utils/libdislocator
-	$(MAKE) -C utils/libtokencap
-	$(MAKE) -C utils/afl_network_proxy
-	$(MAKE) -C utils/socket_fuzzing
-	$(MAKE) -C utils/argv_fuzzing
+ifneq "$(SYS)" "Darwin"
+	-$(MAKE) -C utils/libdislocator
+	-$(MAKE) -C utils/libtokencap
+endif
+	-$(MAKE) -C utils/afl_network_proxy
+	-$(MAKE) -C utils/socket_fuzzing
+	-$(MAKE) -C utils/argv_fuzzing
 	# -$(MAKE) -C utils/plot_ui
 	-$(MAKE) -C frida_mode
 ifneq "$(SYS)" "Darwin"
 ifeq "$(ARCH)" "aarch64"
+  ifndef NO_CORESIGHT
 	-$(MAKE) -C coresight_mode
+  endif
+endif
+ifeq "$(SYS)" "Linux"
+ifndef NO_NYX
+	-cd nyx_mode && ./build_nyx_support.sh
+endif
 endif
 	-cd qemu_mode && sh ./build_qemu_support.sh
+  ifeq "$(ARCH)" "aarch64"
+    ifndef NO_UNICORN_ARM64
 	-cd unicorn_mode && unset CFLAGS && sh ./build_unicorn_support.sh
+    endif
+  else
+	-cd unicorn_mode && unset CFLAGS && sh ./build_unicorn_support.sh
+  endif
 endif
+	@echo
+	@echo
+	@echo Build Summary:
+	@test -e afl-fuzz && echo "[+] afl-fuzz and supporting tools successfully built" || echo "[-] afl-fuzz could not be built, please set CC to a working compiler"
+ifneq "$(SYS)" "Darwin"
+ifeq "$(ARCH)" "aarch64"
+  ifndef NO_CORESIGHT
+	@test -e afl-cs-proxy && echo "[+] coresight_mode successfully built" || echo "[-] coresight_mode could not be built, it is optional and experimental, see coresight_mode/README.md for what is needed"
+  endif
+endif
+ifeq "$(SYS)" "Linux"
+ifndef NO_NYX
+	@test -e libnyx.so && echo "[+] nyx_mode successfully built" || echo "[-] nyx_mode could not be built, it is optional, see nyx_mode/README.md for what is needed"
+endif
+endif
+	@test -e afl-qemu-trace && echo "[+] qemu_mode successfully built" || echo "[-] qemu_mode could not be built, see docs/INSTALL.md for what is needed"
+  ifeq "$(ARCH)" "aarch64"
+    ifndef NO_UNICORN_ARM64
+	@test -e unicorn_mode/unicornafl/build_python/libunicornafl.so && echo "[+] unicorn_mode successfully built" || echo "[-] unicorn_mode could not be built, it is optional, see unicorn_mode/README.md for what is needed"
+    endif
+  else
+	@test -e unicorn_mode/unicornafl/build_python/libunicornafl.so && echo "[+] unicorn_mode successfully built" || echo "[-] unicorn_mode could not be built, it is optional, see unicorn_mode/README.md for what is needed"
+  endif
+endif
+	@echo
 
 .PHONY: source-only
 source-only: all
-	-$(MAKE) -j4 -f GNUmakefile.llvm
+	-$(MAKE) -j$(nproc) -f GNUmakefile.llvm
 ifneq "$(SYS)" "Darwin"
 	-$(MAKE) -f GNUmakefile.gcc_plugin
+	-$(MAKE) -C utils/libdislocator
+	-$(MAKE) -C utils/libtokencap
 endif
-	$(MAKE) -C utils/libdislocator
-	$(MAKE) -C utils/libtokencap
 	# -$(MAKE) -C utils/plot_ui
+ifeq "$(SYS)" "Linux"
+ifndef NO_NYX
+	-cd nyx_mode && ./build_nyx_support.sh
+endif
+endif
+	@echo
+	@echo
+	@echo Build Summary:
+	@test -e afl-fuzz && echo "[+] afl-fuzz and supporting tools successfully built" || echo "[-] afl-fuzz could not be built, please set CC to a working compiler"
+	@test -e afl-llvm-pass.so && echo "[+] LLVM basic mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-11 and clang-11 or newer, see docs/INSTALL.md"
+	@test -e SanitizerCoveragePCGUARD.so && echo "[+] LLVM mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-13 and clang-13 or newer, see docs/INSTALL.md"
+	@test -e SanitizerCoverageLTO.so && echo "[+] LLVM LTO mode successfully built" || echo "[-] LLVM LTO mode could not be built, it is optional, if you want it, please install LLVM 11-14. More information at instrumentation/README.lto.md on how to build it"
+ifneq "$(SYS)" "Darwin"
+	@test -e afl-gcc-pass.so && echo "[+] gcc_mode successfully built" || echo "[-] gcc_mode could not be built, it is optional, install gcc-VERSION-plugin-dev to enable this"
+endif
+ifeq "$(SYS)" "Linux"
+ifndef NO_NYX
+	@test -e libnyx.so && echo "[+] nyx_mode successfully built" || echo "[-] nyx_mode could not be built, it is optional, see nyx_mode/README.md for what is needed"
+endif
+endif
+	@echo
 
 %.8:	%
-	@echo .TH $* 8 $(BUILD_DATE) "afl++" > $@
+	@echo .TH $* 8 $(BUILD_DATE) "AFL++" > $@
 	@echo .SH NAME >> $@
 	@echo .B $* >> $@
 	@echo >> $@
@@ -661,8 +781,8 @@ endif
 	@./$* -hh 2>&1 | tail -n +4 >> $@
 	@echo >> $@
 	@echo .SH AUTHOR >> $@
-	@echo "afl++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de>, Andrea Fioraldi <andreafioraldi@gmail.com> and Dominik Maier <domenukk@gmail.com>" >> $@
-	@echo  The homepage of afl++ is: https://github.com/AFLplusplus/AFLplusplus >> $@
+	@echo "AFL++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Dominik Maier <domenukk@gmail.com>, Andrea Fioraldi <andreafioraldi@gmail.com> and Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de>" >> $@
+	@echo  The homepage of AFL++ is: https://github.com/AFLplusplus/AFLplusplus >> $@
 	@echo >> $@
 	@echo .SH LICENSE >> $@
 	@echo Apache License Version 2.0, January 2004 >> $@
@@ -673,6 +793,7 @@ install: all $(MANPAGES)
 	@rm -f $${DESTDIR}$(BIN_PATH)/afl-plot.sh
 	@rm -f $${DESTDIR}$(BIN_PATH)/afl-as
 	@rm -f $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-32.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-64.o $${DESTDIR}$(HELPER_PATH)/afl-gcc-rt.o
+	@for i in afl-llvm-dict2file.so afl-llvm-lto-instrumentlist.so afl-llvm-pass.so cmplog-instructions-pass.so cmplog-routines-pass.so cmplog-switches-pass.so compare-transform-pass.so libcompcov.so libdislocator.so libnyx.so libqasan.so libtokencap.so SanitizerCoverageLTO.so SanitizerCoveragePCGUARD.so split-compares-pass.so split-switches-pass.so injection-pass.so; do echo rm -fv $${DESTDIR}$(HELPER_PATH)/$${i}; done
 	install -m 755 $(PROGS) $(SH_PROGS) $${DESTDIR}$(BIN_PATH)
 	@if [ -f afl-qemu-trace ]; then install -m 755 afl-qemu-trace $${DESTDIR}$(BIN_PATH); fi
 	@if [ -f utils/plot_ui/afl-plot-ui ]; then install -m 755 utils/plot_ui/afl-plot-ui $${DESTDIR}$(BIN_PATH); fi
@@ -684,6 +805,7 @@ install: all $(MANPAGES)
 	@if [ -f socketfuzz32.so -o -f socketfuzz64.so ]; then $(MAKE) -C utils/socket_fuzzing install; fi
 	@if [ -f argvfuzz32.so -o -f argvfuzz64.so ]; then $(MAKE) -C utils/argv_fuzzing install; fi
 	@if [ -f afl-frida-trace.so ]; then install -m 755 afl-frida-trace.so $${DESTDIR}$(HELPER_PATH); fi
+	@if [ -f libnyx.so ]; then install -m 755 libnyx.so $${DESTDIR}$(HELPER_PATH); fi
 	@if [ -f utils/afl_network_proxy/afl-network-server ]; then $(MAKE) -C utils/afl_network_proxy install; fi
 	@if [ -f utils/aflpp_driver/libAFLDriver.a ]; then set -e; install -m 644 utils/aflpp_driver/libAFLDriver.a $${DESTDIR}$(HELPER_PATH); fi
 	@if [ -f utils/aflpp_driver/libAFLQemuDriver.a ]; then set -e; install -m 644 utils/aflpp_driver/libAFLQemuDriver.a $${DESTDIR}$(HELPER_PATH); fi
@@ -702,11 +824,12 @@ endif
 	install -m 644 docs/*.md $${DESTDIR}$(DOC_PATH)
 	cp -r testcases/ $${DESTDIR}$(MISC_PATH)
 	cp -r dictionaries/ $${DESTDIR}$(MISC_PATH)
+	cp injections.dic $${DESTDIR}$(MISC_PATH)
 
 .PHONY: uninstall
 uninstall:
-	-cd $${DESTDIR}$(BIN_PATH) && rm -f $(PROGS) $(SH_PROGS) afl-cs-proxy afl-qemu-trace afl-plot-ui afl-fuzz-document afl-network-server afl-g* afl-plot.sh afl-as afl-ld-lto afl-c* afl-lto*
-	-cd $${DESTDIR}$(HELPER_PATH) && rm -f afl-g*.*o afl-llvm-*.*o afl-compiler-*.*o libdislocator.so libtokencap.so libcompcov.so libqasan.so afl-frida-trace.so socketfuzz*.so argvfuzz*.so libAFLDriver.a libAFLQemuDriver.a as afl-as SanitizerCoverage*.so compare-transform-pass.so cmplog-*-pass.so split-*-pass.so dynamic_list.txt
+	-cd $${DESTDIR}$(BIN_PATH) && rm -f $(PROGS) $(SH_PROGS) afl-cs-proxy afl-qemu-trace afl-plot-ui afl-fuzz-document afl-network-client afl-network-server afl-g* afl-plot.sh afl-as afl-ld-lto afl-c* afl-lto*
+	-cd $${DESTDIR}$(HELPER_PATH) && rm -f afl-g*.*o afl-llvm-*.*o afl-compiler-*.*o libdislocator.so libtokencap.so libcompcov.so libqasan.so afl-frida-trace.so libnyx.so socketfuzz*.so argvfuzz*.so libAFLDriver.a libAFLQemuDriver.a as afl-as SanitizerCoverage*.so compare-transform-pass.so cmplog-*-pass.so split-*-pass.so dynamic_list.txt injections.dic
 	-rm -rf $${DESTDIR}$(MISC_PATH)/testcases $${DESTDIR}$(MISC_PATH)/dictionaries
 	-sh -c "ls docs/*.md | sed 's|^docs/|$${DESTDIR}$(DOC_PATH)/|' | xargs rm -f"
 	-cd $${DESTDIR}$(MAN_PATH) && rm -f $(MANPAGES)

GNUmakefile.gcc_plugin

@@ -11,7 +11,7 @@
 # from Laszlo Szekeres.
 #
 # Copyright 2015 Google Inc. All rights reserved.
-# Copyright 2019-2020 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2024 AFLplusplus Project. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -28,15 +28,17 @@ MAN_PATH    ?= $(PREFIX)/share/man/man8
 
 VERSION     = $(shell grep '^$(HASH)define VERSION ' ./config.h | cut -d '"' -f2)
 
-CFLAGS          ?= -O3 -g -funroll-loops -D_FORTIFY_SOURCE=2
+CFLAGS          ?= -O3 -g -funroll-loops
+# -D_FORTIFY_SOURCE=1
 CFLAGS_SAFE     := -Wall -Iinclude -Wno-pointer-sign \
                    -DAFL_PATH=\"$(HELPER_PATH)\" -DBIN_PATH=\"$(BIN_PATH)\" \
                    -DGCC_VERSION=\"$(GCCVER)\" -DGCC_BINDIR=\"$(GCCBINDIR)\" \
                    -Wno-unused-function
 override CFLAGS += $(CFLAGS_SAFE)
 
-CXXFLAGS    ?= -O3 -g -funroll-loops -D_FORTIFY_SOURCE=2
-CXXEFLAGS   := $(CXXFLAGS) -Wall -std=c++11
+CXXFLAGS    ?= -O3 -g -funroll-loops
+# -D_FORTIFY_SOURCE=1
+CXXEFLAGS   := $(CXXFLAGS) $(CPPFLAGS) -Wall -std=c++11
 
 CC          ?= gcc
 CXX         ?= g++
@@ -59,7 +61,7 @@ ifeq "$(findstring Foundation,$(shell $(CC) --version))" ""
 endif
 
 PLUGIN_BASE = "$(shell $(CC) -print-file-name=plugin)"
-PLUGIN_FLAGS = -fPIC -fno-rtti -I$(PLUGIN_BASE)/include -I$(PLUGIN_BASE)
+PLUGIN_FLAGS = -fPIC -fno-rtti -fno-exceptions -I$(PLUGIN_BASE)/include -I$(PLUGIN_BASE)
 HASH=\#
 
 GCCVER    = $(shell $(CC) --version 2>/dev/null | awk 'NR == 1 {print $$NF}')
@@ -100,7 +102,9 @@ ifeq "$(SYS)" "SunOS"
 endif
 
 
-PROGS        = ./afl-gcc-pass.so ./afl-compiler-rt.o ./afl-compiler-rt-32.o ./afl-compiler-rt-64.o
+PASSES       = ./afl-gcc-pass.so ./afl-gcc-cmplog-pass.so ./afl-gcc-cmptrs-pass.so
+
+PROGS        = $(PASSES) ./afl-compiler-rt.o ./afl-compiler-rt-32.o ./afl-compiler-rt-64.o
 
 .PHONY: all
 all: test_shm test_deps $(PROGS) test_build all_done
@@ -135,11 +139,13 @@ afl-common.o: ./src/afl-common.c
 
 ./afl-compiler-rt-32.o: instrumentation/afl-compiler-rt.o.c
 	@printf "[*] Building 32-bit variant of the runtime (-m32)... "
-	@$(CC) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m32 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; ln -sf afl-compiler-rt-32.o afl-llvm-rt-32.o; else echo "failed (that's fine)"; fi
+	@$(CC) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m32 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi
 
 ./afl-compiler-rt-64.o: instrumentation/afl-compiler-rt.o.c
 	@printf "[*] Building 64-bit variant of the runtime (-m64)... "
-	@$(CC) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m64 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; ln -sf afl-compiler-rt-64.o afl-llvm-rt-64.o; else echo "failed (that's fine)"; fi
+	@$(CC) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m64 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi
+
+$(PASSES): instrumentation/afl-gcc-common.h
 
 ./afl-gcc-pass.so: instrumentation/afl-gcc-pass.so.cc | test_deps
 	$(CXX) $(CXXEFLAGS) $(PLUGIN_FLAGS) -shared $< -o $@
@@ -148,6 +154,12 @@ afl-common.o: ./src/afl-common.c
 	ln -sf afl-cc.8 afl-gcc-fast.8
 	ln -sf afl-cc.8 afl-g++-fast.8
 
+./afl-gcc-cmplog-pass.so: instrumentation/afl-gcc-cmplog-pass.so.cc | test_deps
+	$(CXX) $(CXXEFLAGS) $(PLUGIN_FLAGS) -shared $< -o $@
+
+./afl-gcc-cmptrs-pass.so: instrumentation/afl-gcc-cmptrs-pass.so.cc | test_deps
+	$(CXX) $(CXXEFLAGS) $(PLUGIN_FLAGS) -shared $< -o $@
+
 .PHONY: test_build
 test_build: $(PROGS)
 	@echo "[*] Testing the CC wrapper and instrumentation output..."
@@ -165,7 +177,7 @@ all_done: test_build
 .NOTPARALLEL: clean
 
 %.8: %
-	@echo .TH $* 8 `date "+%Y-%m-%d"` "afl++" > ./$@
+	@echo .TH $* 8 `date "+%Y-%m-%d"` "AFL++" > ./$@
 	@echo .SH NAME >> ./$@
 	@echo .B $* >> ./$@
 	@echo >> ./$@
@@ -177,8 +189,8 @@ all_done: test_build
 	@./$* -h 2>&1 | tail -n +4 >> ./$@
 	@echo >> ./$@
 	@echo .SH AUTHOR >> ./$@
-	@echo "afl++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de>, Andrea Fioraldi <andreafioraldi@gmail.com> and Dominik Maier <domenukk@gmail.com>" >> ./$@
-	@echo  The homepage of afl++ is: https://github.com/AFLplusplus/AFLplusplus >> ./$@
+	@echo "AFL++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Dominik Maier <domenukk@gmail.com>, Andrea Fioraldi <andreafioraldi@gmail.com> and Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de>" >> ./$@
+	@echo  The homepage of AFL++ is: https://github.com/AFLplusplus/AFLplusplus >> ./$@
 	@echo >> ./$@
 	@echo .SH LICENSE >> ./$@
 	@echo Apache License Version 2.0, January 2004 >> ./$@
@@ -190,6 +202,8 @@ install: all
 	ln -sf afl-c++ $${DESTDIR}$(BIN_PATH)/afl-g++-fast
 	ln -sf afl-compiler-rt.o $${DESTDIR}$(HELPER_PATH)/afl-gcc-rt.o
 	install -m 755 ./afl-gcc-pass.so $${DESTDIR}$(HELPER_PATH)
+	install -m 755 ./afl-gcc-cmplog-pass.so $${DESTDIR}$(HELPER_PATH)
+	install -m 755 ./afl-gcc-cmptrs-pass.so $${DESTDIR}$(HELPER_PATH)
 	install -m 644 -T instrumentation/README.gcc_plugin.md $${DESTDIR}$(DOC_PATH)/README.gcc_plugin.md
 
 .PHONY: clean

GNUmakefile.llvm

@@ -44,12 +44,14 @@ endif
 
 LLVMVER  = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/git//' | sed 's/svn//' )
 LLVM_MAJOR = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/\..*//' )
-LLVM_MINOR = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/.*\.//' | sed 's/git//' | sed 's/svn//' | sed 's/ .*//' )
-LLVM_UNSUPPORTED = $(shell $(LLVM_CONFIG) --version 2>/dev/null | egrep -q '^[0-2]\.|^3.[0-7]\.' && echo 1 || echo 0 )
-LLVM_TOO_NEW = $(shell $(LLVM_CONFIG) --version 2>/dev/null | egrep -q '^1[4-9]' && echo 1 || echo 0 )
-LLVM_NEW_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | egrep -q '^1[0-9]' && echo 1 || echo 0 )
-LLVM_10_OK = $(shell $(LLVM_CONFIG) --version 2>/dev/null | egrep -q '^1[1-9]|^10\.[1-9]|^10\.0.[1-9]' && echo 1 || echo 0 )
-LLVM_HAVE_LTO = $(shell $(LLVM_CONFIG) --version 2>/dev/null | egrep -q '^1[1-9]' && echo 1 || echo 0 )
+LLVM_MINOR = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/.*\.//' | sed 's/git//' | sed 's/svn//' | sed 's/ .*//' | sed 's/rc.*//' )
+LLVM_UNSUPPORTED = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^[0-2]\.|^3.[0-8]\.' && echo 1 || echo 0 )
+LLVM_TOO_NEW = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^19|^2[0-9]' && echo 1 || echo 0 )
+LLVM_TOO_OLD = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^[1-9]\.|^1[012]\.' && echo 1 || echo 0 )
+LLVM_NEW_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[0-9]' && echo 1 || echo 0 )
+LLVM_NEWER_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[6-9]' && echo 1 || echo 0 )
+LLVM_13_OK = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[3-9]' && echo 1 || echo 0 )
+LLVM_HAVE_LTO = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[2-9]' && echo 1 || echo 0 )
 LLVM_BINDIR = $(shell $(LLVM_CONFIG) --bindir 2>/dev/null)
 LLVM_LIBDIR = $(shell $(LLVM_CONFIG) --libdir 2>/dev/null)
 LLVM_STDCXX = gnu++11
@@ -68,6 +70,12 @@ ifeq "$(LLVM_TOO_NEW)" "1"
   $(warning you are using an in-development llvm version - this might break llvm_mode!)
 endif
 
+ifeq "$(LLVM_TOO_OLD)" "1"
+  $(warning you are using an outdated LLVM version! Please use at least LLVM 13 or newer!)
+  $(shell sleep 2)
+endif
+
+# No switching the meaning of LLVM_TOO_OLD
 LLVM_TOO_OLD=1
 
 ifeq "$(LLVM_MAJOR)" "9"
@@ -81,19 +89,18 @@ ifeq "$(LLVM_NEW_API)" "1"
   LLVM_TOO_OLD=0
 endif
 
-ifeq "$(LLVM_TOO_OLD)" "1"
-  $(info [!] llvm_mode detected an old version of llvm, upgrade to at least 9 or preferable 11!)
-  $(shell sleep 1)
+ifeq "$(LLVM_NEWER_API)" "1"
+  $(info [+] llvm_mode detected llvm 16+, enabling c++17)
+  LLVM_STDCXX = c++17
 endif
 
 ifeq "$(LLVM_HAVE_LTO)" "1"
-  $(info [+] llvm_mode detected llvm 11+, enabling afl-lto LTO implementation)
+  $(info [+] llvm_mode detected llvm 12+, enabling afl-lto LTO implementation)
   LLVM_LTO = 1
-  #TEST_MMAP = 1
 endif
 
 ifeq "$(LLVM_LTO)" "0"
-  $(info [+] llvm_mode detected llvm < 11, afl-lto LTO will not be build.)
+  $(info [+] llvm_mode detected llvm < 12, afl-lto LTO will not be build.)
 endif
 
 ifeq "$(LLVM_APPLE_XCODE)" "1"
@@ -214,6 +221,17 @@ ifeq "$(LLVM_LTO)" "1"
     ifeq "$(AFL_REAL_LD)" ""
       ifneq "$(shell readlink $(LLVM_BINDIR)/ld.lld 2>&1)" ""
         AFL_REAL_LD = $(LLVM_BINDIR)/ld.lld
+      else ifneq "$(shell command -v ld.lld 2>/dev/null)" ""
+        AFL_REAL_LD = $(shell command -v ld.lld)
+        TMP_LDLDD_VERSION = $(shell $(AFL_REAL_LD) --version | awk '{ print $$2 }')
+        ifeq "$(LLVMVER)" "$(TMP_LDLDD_VERSION)"
+          $(warning ld.lld found in a weird location ($(AFL_REAL_LD)), but its the same version as LLVM so we will allow it)
+        else
+          $(warning ld.lld found in a weird location ($(AFL_REAL_LD)) and its of a different version than LLMV ($(TMP_LDLDD_VERSION) vs. $(LLVMVER)) - cannot enable LTO mode)
+          AFL_REAL_LD=
+          LLVM_LTO = 0
+        endif
+        undefine TMP_LDLDD_VERSION
       else
         $(warning ld.lld not found, cannot enable LTO mode)
         LLVM_LTO = 0
@@ -229,7 +247,7 @@ AFL_CLANG_FUSELD=
 ifeq "$(LLVM_LTO)" "1"
   ifeq "$(shell echo 'int main() {return 0; }' | $(CLANG_BIN) -x c - -fuse-ld=`command -v ld` -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
     AFL_CLANG_FUSELD=1
-    ifeq "$(shell echo 'int main() {return 0; }' | $(CLANG_BIN) -x c - -fuse-ld=ld.lld --ld-path=$(LLVM_BINDIR)/ld.lld -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
+    ifeq "$(shell echo 'int main() {return 0; }' | $(CLANG_BIN) -x c - -fuse-ld=ld.lld --ld-path=$(AFL_REAL_LD) -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
       AFL_CLANG_LDPATH=1
     endif
   else
@@ -244,26 +262,36 @@ else
         AFL_CLANG_DEBUG_PREFIX =
 endif
 
-CFLAGS          ?= -O3 -funroll-loops -fPIC -D_FORTIFY_SOURCE=2
-CFLAGS_SAFE     := -Wall -g -Wno-cast-qual -Wno-variadic-macros -Wno-pointer-sign -I ./include/ -I ./instrumentation/ \
+CFLAGS          ?= -O3 -funroll-loops -fPIC
+# -D_FORTIFY_SOURCE=1
+CFLAGS_SAFE     := -Wall -g -Wno-cast-qual -Wno-variadic-macros -Wno-pointer-sign \
+                   -I ./include/ -I ./instrumentation/ \
                    -DAFL_PATH=\"$(HELPER_PATH)\" -DBIN_PATH=\"$(BIN_PATH)\" \
                    -DLLVM_BINDIR=\"$(LLVM_BINDIR)\" -DVERSION=\"$(VERSION)\" \
                    -DLLVM_LIBDIR=\"$(LLVM_LIBDIR)\" -DLLVM_VERSION=\"$(LLVMVER)\" \
-                   -Wno-deprecated -DAFL_CLANG_FLTO=\"$(AFL_CLANG_FLTO)\" \
-                   -DAFL_REAL_LD=\"$(AFL_REAL_LD)\" \
-                   -DAFL_CLANG_LDPATH=\"$(AFL_CLANG_LDPATH)\" \
-                   -DAFL_CLANG_FUSELD=\"$(AFL_CLANG_FUSELD)\" \
-                   -DCLANG_BIN=\"$(CLANG_BIN)\" -DCLANGPP_BIN=\"$(CLANGPP_BIN)\" -DUSE_BINDIR=$(USE_BINDIR) -Wno-unused-function \
-                   $(AFL_CLANG_DEBUG_PREFIX)
+                   -DAFL_CLANG_FLTO=\"$(AFL_CLANG_FLTO)\" -DAFL_REAL_LD=\"$(AFL_REAL_LD)\" \
+                   -DAFL_CLANG_LDPATH=\"$(AFL_CLANG_LDPATH)\" -DAFL_CLANG_FUSELD=\"$(AFL_CLANG_FUSELD)\" \
+                   -DCLANG_BIN=\"$(CLANG_BIN)\" -DCLANGPP_BIN=\"$(CLANGPP_BIN)\" -DUSE_BINDIR=$(USE_BINDIR) \
+                   -Wno-unused-function $(AFL_CLANG_DEBUG_PREFIX)
+ifndef LLVM_DEBUG
+  CFLAGS_SAFE += -Wno-deprecated
+endif
+
+ifdef CODE_COVERAGE
+  override CFLAGS_SAFE += -D__AFL_CODE_COVERAGE=1
+  override LDFLAGS += -ldl
+endif
+
 override CFLAGS += $(CFLAGS_SAFE)
 
 ifdef AFL_TRACE_PC
   $(info Compile option AFL_TRACE_PC is deprecated, just set AFL_LLVM_INSTRUMENT=PCGUARD to activate when compiling targets )
 endif
 
-CXXFLAGS          ?= -O3 -funroll-loops -fPIC -D_FORTIFY_SOURCE=2
+CXXFLAGS          ?= -O3 -funroll-loops -fPIC
+# -D_FORTIFY_SOURCE=1
 override CXXFLAGS += -Wall -g -I ./include/ \
-                     -DVERSION=\"$(VERSION)\" -Wno-variadic-macros \
+                     -DVERSION=\"$(VERSION)\" -Wno-variadic-macros -Wno-deprecated-copy-with-dtor \
                      -DLLVM_MINOR=$(LLVM_MINOR) -DLLVM_MAJOR=$(LLVM_MAJOR)
 
 ifneq "$(shell $(LLVM_CONFIG) --includedir) 2> /dev/null" ""
@@ -272,9 +300,14 @@ endif
 ifneq "$(LLVM_CONFIG)" ""
   CLANG_CFL += -I$(shell dirname $(LLVM_CONFIG))/../include
 endif
-CLANG_CPPFL  = `$(LLVM_CONFIG) --cxxflags` -fno-rtti -fPIC $(CXXFLAGS) -Wno-deprecated-declarations
+CLANG_CPPFL  = `$(LLVM_CONFIG) --cxxflags` -fno-rtti -fno-exceptions -fPIC $(CXXFLAGS) $(CPPFLAGS) -Wno-deprecated-declarations
 CLANG_LFL    = `$(LLVM_CONFIG) --ldflags` $(LDFLAGS)
 
+# wasm fuzzing: disable thread-local storage and unset LLVM debug flag
+ifdef WAFL_MODE
+  $(info Compiling libraries for use with WAVM)
+  CLANG_CPPFL += -DNDEBUG -DNO_TLS
+endif
 
 # User teor2345 reports that this is required to make things work on MacOS X.
 ifeq "$(SYS)" "Darwin"
@@ -308,7 +341,7 @@ ifeq "$(TEST_MMAP)" "1"
 endif
 
 PROGS_ALWAYS = ./afl-cc ./afl-compiler-rt.o ./afl-compiler-rt-32.o ./afl-compiler-rt-64.o 
-PROGS        = $(PROGS_ALWAYS) ./afl-llvm-pass.so ./SanitizerCoveragePCGUARD.so ./split-compares-pass.so ./split-switches-pass.so ./cmplog-routines-pass.so ./cmplog-instructions-pass.so ./cmplog-switches-pass.so ./afl-llvm-dict2file.so ./compare-transform-pass.so ./afl-ld-lto ./afl-llvm-lto-instrumentlist.so ./SanitizerCoverageLTO.so
+PROGS        = $(PROGS_ALWAYS) ./afl-llvm-pass.so ./SanitizerCoveragePCGUARD.so ./split-compares-pass.so ./split-switches-pass.so ./cmplog-routines-pass.so ./cmplog-instructions-pass.so ./cmplog-switches-pass.so ./afl-llvm-dict2file.so ./compare-transform-pass.so ./afl-ld-lto ./afl-llvm-lto-instrumentlist.so ./SanitizerCoverageLTO.so ./injection-pass.so
 
 # If prerequisites are not given, warn, do not build anything, and exit with code 0
 ifeq "$(LLVMVER)" ""
@@ -393,8 +426,8 @@ endif
 	$(CXX) $(CLANG_CPPFL) -Wdeprecated -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
 
 ./SanitizerCoveragePCGUARD.so: instrumentation/SanitizerCoveragePCGUARD.so.cc instrumentation/afl-llvm-common.o | test_deps
-ifeq "$(LLVM_10_OK)" "1"
-	-$(CXX) $(CLANG_CPPFL) -Wdeprecated -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
+ifeq "$(LLVM_13_OK)" "1"
+	-$(CXX) $(CLANG_CPPFL) -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< -o $@ $(CLANG_LFL) -Wno-deprecated-copy-dtor -Wdeprecated instrumentation/afl-llvm-common.o
 endif
 
 ./afl-llvm-lto-instrumentlist.so: instrumentation/afl-llvm-lto-instrumentlist.so.cc instrumentation/afl-llvm-common.o
@@ -407,7 +440,7 @@ ifeq "$(LLVM_LTO)" "1"
 	$(CC) $(CFLAGS) $(CPPFLAGS) $< -o $@
 endif
 
-./SanitizerCoverageLTO.so: instrumentation/SanitizerCoverageLTO.so.cc
+./SanitizerCoverageLTO.so: instrumentation/SanitizerCoverageLTO.so.cc instrumentation/afl-llvm-common.o
 ifeq "$(LLVM_LTO)" "1"
 	$(CXX) $(CLANG_CPPFL) -Wno-writable-strings -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
 	$(CLANG_BIN) $(CFLAGS_SAFE) $(CPPFLAGS) -Wno-unused-result -O0 $(AFL_CLANG_FLTO) -fPIC -c instrumentation/afl-llvm-rt-lto.o.c -o ./afl-llvm-rt-lto.o
@@ -436,6 +469,9 @@ endif
 afl-llvm-dict2file.so:	instrumentation/afl-llvm-dict2file.so.cc instrumentation/afl-llvm-common.o | test_deps
 	$(CXX) $(CLANG_CPPFL) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
 
+./injection-pass.so:	instrumentation/injection-pass.cc instrumentation/afl-llvm-common.o | test_deps
+	$(CXX) $(CLANG_CPPFL) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
+
 .PHONY: document
 document:
 	$(CLANG_BIN) -D_AFL_DOCUMENT_MUTATIONS $(CFLAGS_SAFE) $(CPPFLAGS) $(CLANG_CFL) -O3 -Wno-unused-result -fPIC -c instrumentation/afl-compiler-rt.o.c -o ./afl-compiler-rt.o
@@ -447,11 +483,11 @@ document:
 
 ./afl-compiler-rt-32.o: instrumentation/afl-compiler-rt.o.c
 	@printf "[*] Building 32-bit variant of the runtime (-m32)... "
-	@$(CC) $(CLANG_CFL) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m32 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; ln -sf afl-compiler-rt-32.o afl-llvm-rt-32.o; else echo "failed (that's fine)"; fi
+	@$(CC) $(CLANG_CFL) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m32 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi
 
 ./afl-compiler-rt-64.o: instrumentation/afl-compiler-rt.o.c
 	@printf "[*] Building 64-bit variant of the runtime (-m64)... "
-	@$(CC) $(CLANG_CFL) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m64 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; ln -sf afl-compiler-rt-64.o afl-llvm-rt-64.o; else echo "failed (that's fine)"; fi
+	@$(CC) $(CLANG_CFL) $(CFLAGS_SAFE) $(CPPFLAGS) -O3 -Wno-unused-result -m64 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi
 
 .PHONY: test_build
 test_build: $(PROGS)
@@ -474,11 +510,11 @@ install: all
 	@install -d -m 755 $${DESTDIR}$(BIN_PATH) $${DESTDIR}$(HELPER_PATH) $${DESTDIR}$(DOC_PATH) $${DESTDIR}$(MISC_PATH)
 	@if [ -f ./afl-cc ]; then set -e; install -m 755 ./afl-cc $${DESTDIR}$(BIN_PATH); ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-c++; fi
 	@rm -f $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt*.o $${DESTDIR}$(HELPER_PATH)/afl-gcc-rt*.o
-	@if [ -f ./afl-compiler-rt.o ]; then set -e; install -m 755 ./afl-compiler-rt.o $${DESTDIR}$(HELPER_PATH); ln -sf afl-compiler-rt.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt.o ;fi
+	@if [ -f ./afl-compiler-rt.o ]; then set -e; install -m 755 ./afl-compiler-rt.o $${DESTDIR}$(HELPER_PATH); fi
 	@if [ -f ./afl-lto ]; then set -e; ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-lto; ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-lto++; ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-clang-lto; ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-clang-lto++; install -m 755 ./afl-llvm-rt-lto*.o ./afl-llvm-lto-instrumentlist.so $${DESTDIR}$(HELPER_PATH); fi
 	@if [ -f ./afl-ld-lto ]; then set -e; install -m 755 ./afl-ld-lto $${DESTDIR}$(BIN_PATH); fi
-	@if [ -f ./afl-compiler-rt-32.o ]; then set -e; install -m 755 ./afl-compiler-rt-32.o $${DESTDIR}$(HELPER_PATH); ln -sf afl-compiler-rt-32.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-32.o ;fi
-	@if [ -f ./afl-compiler-rt-64.o ]; then set -e; install -m 755 ./afl-compiler-rt-64.o $${DESTDIR}$(HELPER_PATH); ln -sf afl-compiler-rt-64.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-64.o ; fi
+	@if [ -f ./afl-compiler-rt-32.o ]; then set -e; install -m 755 ./afl-compiler-rt-32.o $${DESTDIR}$(HELPER_PATH); fi
+	@if [ -f ./afl-compiler-rt-64.o ]; then set -e; install -m 755 ./afl-compiler-rt-64.o $${DESTDIR}$(HELPER_PATH); fi
 	@if [ -f ./compare-transform-pass.so ]; then set -e; install -m 755 ./*.so $${DESTDIR}$(HELPER_PATH); fi
 	@if [ -f ./compare-transform-pass.so ]; then set -e; ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-clang-fast ; ln -sf ./afl-c++ $${DESTDIR}$(BIN_PATH)/afl-clang-fast++ ; ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-clang ; ln -sf ./afl-c++ $${DESTDIR}$(BIN_PATH)/afl-clang++ ; fi
 	@if [ -f ./SanitizerCoverageLTO.so ]; then set -e; ln -sf afl-cc $${DESTDIR}$(BIN_PATH)/afl-clang-lto ; ln -sf ./afl-c++ $${DESTDIR}$(BIN_PATH)/afl-clang-lto++ ; fi
@@ -486,7 +522,7 @@ install: all
 	install -m 644 instrumentation/README.*.md $${DESTDIR}$(DOC_PATH)/
 
 %.8: %
-	@echo .TH $* 8 $(BUILD_DATE) "afl++" > ./$@
+	@echo .TH $* 8 $(BUILD_DATE) "AFL++" > ./$@
 	@echo .SH NAME >> ./$@
 	@printf "%s" ".B $* \- " >> ./$@
 	@./$* -h 2>&1 | head -n 1 | sed -e "s/$$(printf '\e')[^m]*m//g" >> ./$@
@@ -500,8 +536,8 @@ install: all
 	@./$* -h 2>&1 | tail -n +4 >> ./$@
 	@echo >> ./$@
 	@echo .SH AUTHOR >> ./$@
-	@echo "afl++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de>, Andrea Fioraldi <andreafioraldi@gmail.com> and Dominik Maier <domenukk@gmail.com>" >> ./$@
-	@echo  The homepage of afl++ is: https://github.com/AFLplusplus/AFLplusplus >> ./$@
+	@echo "AFL++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Dominik Maier <domenukk@gmail.com>, Andrea Fioraldi <andreafioraldi@gmail.com> and Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de>" >> ./$@
+	@echo  The homepage of AFL++ is: https://github.com/AFLplusplus/AFLplusplus >> ./$@
 	@echo >> ./$@
 	@echo .SH LICENSE >> ./$@
 	@echo Apache License Version 2.0, January 2004 >> ./$@
@@ -520,4 +556,4 @@ endif
 .PHONY: clean
 clean:
 	rm -f *.o *.so *~ a.out core core.[1-9][0-9]* .test2 test-instr .test-instr0 .test-instr1 *.dwo
-	rm -f $(PROGS) afl-common.o ./afl-c++ ./afl-lto ./afl-lto++ ./afl-clang-lto* ./afl-clang-fast* ./afl-clang*.8 ./ld ./afl-ld ./afl-llvm-rt*.o instrumentation/*.o
+	rm -f $(PROGS) afl-common.o ./afl-c++ ./afl-lto ./afl-lto++ ./afl-clang-lto* ./afl-clang-fast* ./afl-clang*.8 ./ld ./afl-ld ./afl-compiler-rt*.o ./afl-llvm-rt*.o instrumentation/*.o

README.md

@@ -1,22 +1,24 @@
 # American Fuzzy Lop plus plus (AFL++)
 
-<img align="right" src="https://raw.githubusercontent.com/andreafioraldi/AFLplusplus-website/master/static/logo_256x256.png" alt="AFL++ logo">
+<img align="right" src="https://raw.githubusercontent.com/AFLplusplus/Website/main/static/aflpp_bg.svg" alt="AFL++ logo" width="250" heigh="250">
 
-Release version: [3.14c](https://github.com/AFLplusplus/AFLplusplus/releases)
+Release version: [4.21c](https://github.com/AFLplusplus/AFLplusplus/releases)
 
-GitHub version: 3.15a
+GitHub version: 4.21c
 
 Repository:
 [https://github.com/AFLplusplus/AFLplusplus](https://github.com/AFLplusplus/AFLplusplus)
 
 AFL++ is maintained by:
 
-* Marc "van Hauser" Heuse <mh@mh-sec.de>,
-* Heiko "hexcoder-" Eißfeldt <heiko.eissfeldt@hexco.de>,
-* Andrea Fioraldi <andreafioraldi@gmail.com> and
-* Dominik Maier <mail@dmnk.co>.
+* Marc "van Hauser" Heuse <mh@mh-sec.de>
+* Dominik Maier <mail@dmnk.co>
+* Andrea Fioraldi <andreafioraldi@gmail.com>
+* Heiko "hexcoder-" Eissfeldt <heiko.eissfeldt@hexco.de>
+* frida_mode is maintained by @Worksbutnottested
+* Documentation: Jana Aydinbas <jana.aydinbas@gmail.com>
 
-Originally developed by Michał "lcamtuf" Zalewski.
+Originally developed by Michal "lcamtuf" Zalewski.
 
 AFL++ is a superior fork to Google's AFL - more speed, more and better
 mutations, more and better instrumentation, custom module support, etc.
@@ -28,9 +30,14 @@ terms of the Apache-2.0 License. See the [LICENSE](LICENSE) for details.
 
 Here is some information to get you started:
 
+* For an overview of the AFL++ documentation and a very helpful graphical guide,
+  please visit [docs/README.md](docs/README.md).
+* To get you started with tutorials, go to
+  [docs/tutorials.md](docs/tutorials.md).
 * For releases, see the
   [Releases tab](https://github.com/AFLplusplus/AFLplusplus/releases) and
-  [branches](#branches). Also take a look at the list of
+  [branches](#branches). The best branches to use are, however, `stable` or
+  `dev` - depending on your risk appetite. Also take a look at the list of
   [important changes in AFL++](docs/important_changes.md) and the list of
   [features](docs/features.md).
 * If you want to use AFL++ for your academic work, check the
@@ -40,24 +47,26 @@ Here is some information to get you started:
   `afl-clang-fast` with `AFL_LLVM_CMPLOG=1`. You can find the `aflplusplus`
   default configuration on Google's
   [fuzzbench](https://github.com/google/fuzzbench/tree/master/fuzzers/aflplusplus).
-* To get you started with tutorials, go to
-  [docs/tutorials.md](docs/tutorials.md).
 
 ## Building and installing AFL++
 
 To have AFL++ easily available with everything compiled, pull the image directly
-from the Docker Hub:
+from the Docker Hub (available for both x86_64 and arm64):
 
 ```shell
 docker pull aflplusplus/aflplusplus
 docker run -ti -v /location/of/your/target:/src aflplusplus/aflplusplus
 ```
 
-This image is automatically generated when a push to the stable repo happens
-(see [branches](#branches)). You will find your target source code in `/src` in
-the container.
+This image is automatically published when a push to the stable branch happens
+(see [branches](#branches)). If you use the command above, you will find your
+target source code in `/src` in the container.
 
-To build AFL++ yourself, continue at [docs/INSTALL.md](docs/INSTALL.md).
+Note: you can also pull `aflplusplus/aflplusplus:dev` which is the most current
+development state of AFL++.
+
+To build AFL++ yourself - *which we recommend* - continue at
+[docs/INSTALL.md](docs/INSTALL.md).
 
 ## Quick start: Fuzzing with AFL++
 
@@ -107,7 +116,7 @@ Step-by-step quick start:
 
 5. You will find found crashes and hangs in the subdirectories `crashes/` and
    `hangs/` in the `-o output_dir` directory. You can replay the crashes by
-   feeding them to the target, e.g.:
+   feeding them to the target, e.g. if your target is using stdin:
 
    ```
    cat output_dir/crashes/id:000000,* | /path/to/tested/program [...program's cmdline...]
@@ -115,20 +124,24 @@ Step-by-step quick start:
 
    You can generate cores or use gdb directly to follow up the crashes.
 
+6. We cannot stress this enough - if you want to fuzz effectively, read the
+   [docs/fuzzing_in_depth.md](docs/fuzzing_in_depth.md) document!
+
 ## Contact
 
 Questions? Concerns? Bug reports?
 
-* The contributors can be reached via
+* The contributors can be reached via (e.g., by creating an issue):
   [https://github.com/AFLplusplus/AFLplusplus](https://github.com/AFLplusplus/AFLplusplus).
 * Take a look at our [FAQ](docs/FAQ.md). If you find an interesting or important
   question missing, submit it via
   [https://github.com/AFLplusplus/AFLplusplus/discussions](https://github.com/AFLplusplus/AFLplusplus/discussions).
-* There is a mailing list for the AFL/AFL++ project
+* Best: join the [Awesome Fuzzing](https://discord.gg/gCraWct) Discord server.
+* There is a (not really used) mailing list for the AFL/AFL++ project
   ([browse archive](https://groups.google.com/group/afl-users)). To compare
   notes with other users or to get notified about major new features, send an
-  email to <afl-users+subscribe@googlegroups.com>.
-* Or join the [Awesome Fuzzing](https://discord.gg/gCraWct) Discord server.
+  email to <afl-users+subscribe@googlegroups.com>, but note that this is not
+  managed by us.
 
 ## Branches
 
@@ -141,7 +154,7 @@ The following branches exist:
   stability
 * [dev](https://github.com/AFLplusplus/AFLplusplus/tree/dev): development state
   of AFL++ - bleeding edge and you might catch a checkout which does not compile
-  or has a bug. *We only accept PRs in dev!!*
+  or has a bug. **We only accept PRs (pull requests) for the 'dev' branch!**
 * (any other): experimental branches to work on specific features or testing new
   functionality or changes.
 
@@ -155,7 +168,7 @@ This can be your way to support and contribute to AFL++ - extend it to do
 something cool.
 
 For everyone who wants to contribute (and send pull requests), please read our
-[contributing guidelines](CONTRIBUTING.md) before your submit.
+[contributing guidelines](CONTRIBUTING.md) before you submit.
 
 ## Special thanks
 
@@ -215,7 +228,8 @@ Thank you! (For people sending pull requests - please add yourself to this list
     Josephine Calliotte                   Konrad Welc
     Thomas Rooijakkers                    David Carlier
     Ruben ten Hove                        Joey Jiao
-    fuzzah
+    fuzzah                                @intrigus-lgtm
+    Yaakov Saxon                          Sergej Schumilo
   ```
 
 </details>
@@ -243,4 +257,4 @@ presented at WOOT'20:
   }
   ```
 
-</details>
+</details>

TODO.md

@@ -1,16 +1,35 @@
 # TODO list for AFL++
 
+## Must
+
+ - fast restart of afl-fuzz if cmdline + target hash is the same
+ - check for null ptr for xml/curl/g_ string transform functions
+ - hardened_usercopy=0 page_alloc.shuffle=0
+ - add value_profile but only enable after 15 minutes without finds
+ - cmplog max items env?
+ - adapt MOpt to new mutation engine
+   - Update afl->pending_not_fuzzed for MOpt
+ - cmplog rtn sanity check on fixed length? currently we ignore the length
+ - afl-showmap -f support
+ - afl-fuzz multicore wrapper script
+ - when trimming then perform crash detection
+
+
 ## Should
 
+ - afl-crash-analysis
+ - cmplog: add loop count resolving (byte -> loop cnt change, calc special values)
+ - support persistent and deferred fork server in afl-showmap?
  - better autodetection of shifting runtime timeout values
- - Update afl->pending_not_fuzzed for MOpt
  - afl-plot to support multiple plot_data
  - parallel builds for source-only targets
  - get rid of check_binary, replace with more forkserver communication
+ - first fuzzer should be a main automatically? not sure.
 
 ## Maybe
 
- - afl_custom_fuzz_splice_optin()
+ - forkserver tells afl-fuzz if cmplog is supported and if so enable
+   it by default, with AFL_CMPLOG_NO=1 (?) set to skip?
  - afl_custom_splice()
  - cmdline option from-to range for mutations
 
@@ -20,8 +39,7 @@ QEMU mode/FRIDA mode:
  - non colliding instrumentation
  - rename qemu specific envs to AFL_QEMU (AFL_ENTRYPOINT, AFL_CODE_START/END,
    AFL_COMPCOV_LEVEL?)
- - add AFL_QEMU_EXITPOINT (maybe multiple?), maybe pointless as there is
-   persistent mode
+ - add AFL_QEMU_EXITPOINT (maybe multiple?)
 
 ## Ideas
 
@@ -29,4 +47,4 @@ QEMU mode/FRIDA mode:
    using cmplog or __sanitizer_cov_trace_cmp*. maybe we can deduct by follow up
    edge numbers that both following cmp paths have been found and then disable
    working on this edge id -> cmplog_intelligence branch
- - use cmplog colorization taint result for havoc locations?
+ - use cmplog colorization taint result for havoc locations?

afl-addseeds

@@ -0,0 +1,54 @@
+#!/bin/sh
+
+test -z "$1" -o "$1" = "-h" -o "$1" = "--help" && {
+  echo Syntax: afl-addseeds -o afl-out-dir [-i seed_file_or_dir] seed_file_or_seed_dir seed_file_or_seed_dir ...
+  echo
+  echo Options:
+  echo "  -o afl-out-dir       the output directory being used in the fuzzing campaign"
+  echo "  -i seed_file_or_dir  file or directory of files to add"
+  echo
+  echo Adds new seeds to an existing AFL++ fuzzing campaign.
+  exit 0
+}
+
+for TOOL in find ls; do
+  X=`which $TOOL`
+  test -n "$X" || { echo "Error: required tool '$TOOL' not found."; exit 1; }
+done
+
+TEST=`printf %06d 123 2>/dev/null`
+test "$TEST" = "000123" || { echo "Error: required tool 'printf' not found."; exit 1; }
+
+OUT=
+NEXT=
+for i in $*; do
+  test -n "$NEXT" && { OUT=$i ; NEXT=""; }
+  test "$i" = "-o" && { NEXT=1; }
+done
+
+test -d "$OUT" || { echo Error: $OUT is not an existing directory; exit 1; }
+OK=`ls $OUT/*/fuzzer_stats 2>/dev/null`
+test -n "$OK" || { echo "Error: $OUT is not an 'afl-fuzz -o ... ' output directory" ; exit 1; }
+
+OUTDIR=$OUT/addseeds/queue
+mkdir -p "$OUTDIR" 2>/dev/null
+test -d "$OUTDIR" || { echo Error: could not create $OUTDIR ; exit 1 ; }
+
+echo Adding seeds ...
+NEXTID=0
+for i in $*; do
+  test -z "$i" -o "$i" = "$OUT" -o "$i" = "-i" -o "$i" = "-o" || {
+    find "$i" -type f | while read FILE; do
+      N=xxx
+      while [ -n "$N" ]; do
+        ID=$NEXTID
+        N=`ls "$OUTDIR/id:$(printf %06d $ID),"* 2>/dev/null`
+        NEXTID=$(($NEXTID + 1))
+      done
+      FN=`echo "$FILE" | sed 's/.*\///'`
+      cp -v "$FILE" "$OUTDIR/id:$(printf %06d $ID),time:0,execs:0,orig:$FN"
+    done
+  }
+done
+
+echo Done.

afl-cmin

@@ -1,15 +1,19 @@
 #!/usr/bin/env sh
+SYS=$(uname -s)
+test "$SYS" = "Darwin" && {
+  echo Error: afl-cmin does not work on Apple currently. please use afl-cmin.bash instead.
+  exit 1
+}
 export AFL_QUIET=1
 export ASAN_OPTIONS=detect_leaks=0
 THISPATH=`dirname ${0}`
 export PATH="${THISPATH}:$PATH"
 awk -f - -- ${@+"$@"} <<'EOF'
 #!/usr/bin/awk -f
-
 # awk script to minimize a test corpus of input files
 #
 # based on afl-cmin bash script written by Michal Zalewski
-# rewritten by Heiko Eißfeldt (hexcoder-)
+# rewritten by Heiko Eissfeldt (hexcoder-)
 # tested with:
 #   gnu awk (x86 Linux)
 #   bsd awk (x86 *BSD)
@@ -103,30 +107,38 @@ function usage() {
 "  -o dir        - output directory for minimized files\n" \
 "\n" \
 "Execution control settings:\n" \
-"  -f file       - location read by the fuzzed program (stdin)\n" \
+"  -T tasks      - how many parallel tasks to run (default: 1, all=nproc)\n" \
+"  -f file       - location read by the fuzzed program (default: stdin)\n" \
 "  -m megs       - memory limit for child process ("mem_limit" MB)\n" \
-"  -t msec       - run time limit for child process (none)\n" \
+"  -t msec       - run time limit for child process (default: 5000)\n" \
 "  -O            - use binary-only instrumentation (FRIDA mode)\n" \
 "  -Q            - use binary-only instrumentation (QEMU mode)\n" \
 "  -U            - use unicorn-based instrumentation (unicorn mode)\n" \
+"  -X            - use Nyx mode\n" \
 "\n" \
 "Minimization settings:\n" \
+"  -A            - allow crashes and timeouts (not recommended)\n" \
 "  -C            - keep crashing inputs, reject everything else\n" \
 "  -e            - solve for edge coverage only, ignore hit counts\n" \
 "\n" \
 "For additional tips, please consult README.md\n" \
 "\n" \
 "Environment variables used:\n" \
-"AFL_ALLOW_TMP: allow unsafe use of input/output directories under {/var}/tmp\n" \
 "AFL_CRASH_EXITCODE: optional child exit code to be interpreted as crash\n" \
 "AFL_FORKSRV_INIT_TMOUT: time the fuzzer waits for the forkserver to come up\n" \
 "AFL_KEEP_TRACES: leave the temporary <out_dir>/.traces directory\n" \
 "AFL_KILL_SIGNAL: Signal delivered to child processes on timeout (default: SIGKILL)\n" \
+"AFL_FORK_SERVER_KILL_SIGNAL: Signal delivered to fork server processes on\n" \
+"   termination (default: SIGTERM). If this is not set and AFL_KILL_SIGNAL is\n" \
+"   set, this will be set to the same value as AFL_KILL_SIGNAL.\n" \
 "AFL_NO_FORKSRV: run target via execve instead of using the forkserver\n" \
+"AFL_CMIN_ALLOW_ANY: write tuples for crashing inputs also\n" \
 "AFL_PATH: path for the afl-showmap binary if not found anywhere in PATH\n" \
 "AFL_PRINT_FILENAMES: If set, the filename currently processed will be " \
       "printed to stdout\n" \
 "AFL_SKIP_BIN_CHECK: skip afl instrumentation checks for target binary\n"
+"AFL_CUSTOM_MUTATOR_LIBRARY: custom mutator library (post_process and send)\n"
+"AFL_PYTHON_MODULE: custom mutator library (post_process and send)\n"
    exit 1
 }
 
@@ -135,22 +147,35 @@ function exists_and_is_executable(binarypath) {
 }
 
 BEGIN {
-  print "corpus minimization tool for afl++ (awk version)\n"
+  if (0 != system( "test -t 1")) {
+    redirected = 1
+  } else {
+    redirected = 0
+  }
+
+  print "corpus minimization tool for AFL++ (awk version)\n"
 
   # defaults
   extra_par = ""
   AFL_CMIN_CRASHES_ONLY = ""
+  AFL_CMIN_ALLOW_ANY = ""
 
   # process options
   Opterr = 1    # default is to diagnose
   Optind = 1    # skip ARGV[0]
-  while ((_go_c = getopt(ARGC, ARGV, "hi:o:f:m:t:eCOQU?")) != -1) {
+  while ((_go_c = getopt(ARGC, ARGV, "hi:o:f:m:t:eACOQUXYT:?")) != -1) {
     if (_go_c == "i") {
       if (!Optarg) usage()
       if (in_dir) { print "Option "_go_c" is only allowed once" > "/dev/stderr"}
       in_dir = Optarg
       continue
     } else 
+    if (_go_c == "T") {
+      if (!Optarg) usage()
+      if (threads) { print "Option "_go_c" is only allowed once" > "/dev/stderr"}
+      threads = Optarg
+      continue
+    } else 
     if (_go_c == "o") {
       if (!Optarg) usage()
       if (out_dir) { print "Option "_go_c" is only allowed once" > "/dev/stderr"}
@@ -180,6 +205,10 @@ BEGIN {
       AFL_CMIN_CRASHES_ONLY = "AFL_CMIN_CRASHES_ONLY=1 "
       continue
     } else 
+    if (_go_c == "A") {
+      AFL_CMIN_ALLOW_ANY = "AFL_CMIN_ALLOW_ANY=1 "
+      continue
+    } else 
     if (_go_c == "e") {
       extra_par = extra_par " -e"
       continue
@@ -201,6 +230,12 @@ BEGIN {
       extra_par = extra_par " -U"
       unicorn_mode = 1
       continue
+    } else
+    if (_go_c == "X" || _go_c == "Y") {
+      if (nyx_mode) { print "Option "_go_c" is only allowed once" > "/dev/stderr"}
+      extra_par = extra_par " -X"
+      nyx_mode = 1
+      continue
     } else 
     if (_go_c == "?") {
       exit 1
@@ -209,7 +244,7 @@ BEGIN {
   } # while options
 
   if (!mem_limit) mem_limit = "none"
-  if (!timeout) timeout = "none"
+  if (!timeout) timeout = "5000"
 
   # get program args
   i = 0
@@ -217,7 +252,7 @@ BEGIN {
   for (; Optind < ARGC; Optind++) {
     prog_args[i++] = ARGV[Optind]
     if (i > 1)
-      prog_args_string = prog_args_string" "ARGV[Optind]
+      prog_args_string = prog_args_string" '"ARGV[Optind]"'"
   }
 
   # sanity checks
@@ -236,15 +271,22 @@ BEGIN {
     "pwd" | getline dirlist[4] # current directory
     for (dirind in dirlist) {
       dir = dirlist[dirind]
-
       if (dir ~ /^(\/var)?\/tmp/) {
-        print "[-] Error: do not use this script in /tmp or /var/tmp." > "/dev/stderr"
-        exit 1
+        print "[-] Warning: do not use this script in /tmp or /var/tmp for security reasons." > "/dev/stderr"
       }
     }
     delete dirlist
   }
 
+  if (threads && stdin_file) {
+    print "[-] Error: -T and -f cannot be used together." > "/dev/stderr"
+    exit 1
+  }
+
+  if (!threads && !stdin_file && !nyx_mode) {
+    print "[*] Are you aware of the '-T all' parallelize option that improves the speed for large/slow corpuses?"
+  }
+
   # If @@ is specified, but there's no -f, let's come up with a temporary input
   # file name.
 
@@ -275,9 +317,12 @@ BEGIN {
     exit 1
   }
 
-  if (target_bin && !exists_and_is_executable(target_bin)) {
 
-    "command -v "target_bin" 2>/dev/null" | getline tnew
+  if (!nyx_mode && target_bin && !exists_and_is_executable(target_bin)) {
+
+    cmd = "command -v "target_bin" 2>/dev/null"
+    cmd | getline tnew
+    close(cmd)
     if (!tnew || !exists_and_is_executable(tnew)) {
       print "[-] Error: binary '"target_bin"' not found or not executable." > "/dev/stderr"
       exit 1
@@ -285,7 +330,18 @@ BEGIN {
     target_bin = tnew
   }
 
-  if (!ENVIRON["AFL_SKIP_BIN_CHECK"] && !qemu_mode && !frida_mode && !unicorn_mode) {
+  if (0 == system ( "grep -aq AFL_DUMP_MAP_SIZE " target_bin )) {
+    echo "[!] Trying to obtain the map size of the target ..."
+    get_map_size = "AFL_DUMP_MAP_SIZE=1 " target_bin
+    get_map_size | getline mapsize
+    close(get_map_size)
+    if (mapsize && mapsize > 65535 && mapsize < 100000000) {
+      AFL_MAP_SIZE = "AFL_MAP_SIZE="mapsize" "
+      print "[+] Setting "AFL_MAP_SIZE
+    }
+  }
+
+  if (!ENVIRON["AFL_SKIP_BIN_CHECK"] && !qemu_mode && !frida_mode && !unicorn_mode && !nyx_mode) {
     if (0 != system( "grep -q __AFL_SHM_ID "target_bin )) {
       print "[-] Error: binary '"target_bin"' doesn't appear to be instrumented." > "/dev/stderr"
       exit 1
@@ -308,12 +364,28 @@ BEGIN {
   system("rm -rf "trace_dir" 2>/dev/null");
   system("rm "out_dir"/id[:_]* 2>/dev/null")
 
-  "ls "out_dir"/* 2>/dev/null | wc -l" | getline noofentries
+  cmd = "ls "out_dir"/* 2>/dev/null | wc -l"
+  cmd | getline noofentries
+  close(cmd)
   if (0 == system( "test -d "out_dir" -a "noofentries" -gt 0" )) {
     print "[-] Error: directory '"out_dir"' exists and is not empty - delete it first." > "/dev/stderr"
     exit 1
   }
 
+  if (threads) {
+    cmd = "nproc"
+    cmd | getline nproc
+    close(cmd)
+    if (threads == "all") {
+      threads = nproc
+    } else {
+      if (!(threads > 1 && threads <= nproc)) {
+        print "[-] Error: -T option must be between 1 and "nproc" or \"all\"." > "/dev/stderr"
+        exit 1
+      }
+    }
+  }
+
   # Check for the more efficient way to copy files...
   if (0 != system("mkdir -p -m 0700 "trace_dir)) {
     print "[-] Error: Cannot create directory "trace_dir > "/dev/stderr"
@@ -323,12 +395,14 @@ BEGIN {
   if (stdin_file) {
     # truncate input file
     printf "" > stdin_file
-    close( stdin_file )
+    close(stdin_file)
   }
 
   # First we look in PATH
   if (0 == system("command -v afl-showmap >/dev/null 2>&1")) {
-    "command -v afl-showmap 2>/dev/null" | getline showmap
+    cmd = "command -v afl-showmap 2>/dev/null"
+    cmd | getline showmap
+    close(cmd)
   } else {
     # then we look in the current directory
     if (0 == system("test -x ./afl-showmap")) {
@@ -350,13 +424,15 @@ BEGIN {
   # yuck, gnu stat is option incompatible to bsd stat
   # we use a heuristic to differentiate between
   # GNU stat and other stats
-  "stat --version 2>/dev/null" | getline statversion
-  if (statversion ~ /GNU coreutils/) {
+  cmd = "stat --version 2>/dev/null"
+  cmd | getline statversion
+  close(cmd)
+  if (statversion ~ /GNU coreutils/ || statversion ~ /BusyBox/) {
     stat_format = "-c '%s %n'" # GNU
   } else {
     stat_format = "-f '%z %N'" # *BSD, MacOS
   }
-  cmdline = "(cd "in_dir" && find . \\( ! -name \".*\" -a -type d \\) -o -type f -exec stat "stat_format" \\{\\} + | sort -k1n -k2r)"
+  cmdline = "(cd "in_dir" && find . \\( ! -name \".*\" -a -type d \\) -o -type f -exec stat "stat_format" \\{\\} + | sort -k1n -k2r) | grep -Ev '^0'"
   #cmdline = "ls "in_dir" | (cd "in_dir" && xargs stat "stat_format" 2>/dev/null) | sort -k1n -k2r"
   #cmdline = "(cd "in_dir" && stat "stat_format" *) | sort -k1n -k2r"
   #cmdline = "(cd "in_dir" && ls | xargs stat "stat_format" ) | sort -k1n -k2r"
@@ -369,6 +445,7 @@ BEGIN {
     infilesSmallToBigFullMap[infilesSmallToBigFull[i]] = infilesSmallToBig[i]
     i++
   }
+  close(cmdline)
   in_count = i
 
   first_file = infilesSmallToBigFull[0]
@@ -393,10 +470,10 @@ BEGIN {
     print "[*] Testing the target binary..."
 
     if (!stdin_file) {
-      system( "AFL_CMIN_ALLOW_ANY=1 "AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"/.run_test\" -Z "extra_par" -- \""target_bin"\" "prog_args_string" <\""in_dir"/"first_file"\"")
+      system(AFL_MAP_SIZE "AFL_CMIN_ALLOW_ANY=1 "AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"/.run_test\" -Z "extra_par" -- \""target_bin"\" "prog_args_string" <\""in_dir"/"first_file"\"")
     } else {
       system("cp \""in_dir"/"first_file"\" "stdin_file)
-      system( "AFL_CMIN_ALLOW_ANY=1 "AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"/.run_test\" -Z "extra_par" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null")
+      system(AFL_MAP_SIZE "AFL_CMIN_ALLOW_ANY=1 "AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"/.run_test\" -Z "extra_par" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null")
     }
 
     first_count = 0
@@ -405,6 +482,7 @@ BEGIN {
     while ((getline < runtest) > 0) {
       ++first_count
     }
+    close(runtest)
 
     if (first_count) {
       print "[+] OK, "first_count" tuples recorded."
@@ -417,33 +495,90 @@ BEGIN {
     }
   }
 
+  if (in_count < threads) {
+    threads = in_count
+    print "[!] WARNING: less inputs than threads, reducing threads to "threads" and likely the overhead of threading makes things slower..."
+  }
+
   # Let's roll!
 
   #############################
   # STEP 1: Collecting traces #
   #############################
 
+  if (threads) {
+
+    inputsperfile = int(in_count / threads)
+    if (in_count % threads) {
+      inputsperfile++;
+    }
+
+    cnt = 0;
+    tmpfile=out_dir "/.filelist"
+    for (instance = 1; instance < threads; instance++) {
+      for (i = 0; i < inputsperfile; i++) {
+        print in_dir"/"infilesSmallToBigFull[cnt] >> tmpfile"."instance
+        cnt++
+      }
+    }
+    for (; cnt < in_count; cnt++) {
+      print in_dir"/"infilesSmallToBigFull[cnt] >> tmpfile"."threads
+    }
+
+  }
+
   print "[*] Obtaining traces for "in_count" input files in '"in_dir"'."
 
   cur = 0;
-  if (!stdin_file) {
-    print "    Processing "in_count" files (forkserver mode)..."
-#    print AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -- \""target_bin"\" "prog_args_string
-    retval = system( AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -- \""target_bin"\" "prog_args_string)
-  } else {
-    print "    Processing "in_count" files (forkserver mode)..."
-#    print AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null"
-    retval = system( AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null")
-  }
 
-  if (retval && !AFL_CMIN_CRASHES_ONLY) {
-    print "[!] Exit code "retval" != 0 received from afl-showmap, terminating..."
+  if (threads > 1) {
 
-    if (!ENVIRON["AFL_KEEP_TRACES"]) {
-      system("rm -rf "trace_dir" 2>/dev/null")
-      system("rmdir "out_dir)
+    print "[*] Creating " threads " parallel tasks with about " inputsperfile " items each."
+    for (i = 1; i <= threads; i++) {
+
+      if (!stdin_file) {
+#        print " { "AFL_MAP_SIZE AFL_CMIN_ALLOW_ANY AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -I \""tmpfile"."i"\" -- \""target_bin"\" "prog_args_string"; > "tmpfile"."i".done ; } &"
+        retval = system(" { "AFL_MAP_SIZE AFL_CMIN_ALLOW_ANY AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -I \""tmpfile"."i"\" -- \""target_bin"\" "prog_args_string"; > "tmpfile"."i".done ; } &")
+      } else {
+        stdin_file=tmpfile"."i".stdin"
+#        print " { "AFL_MAP_SIZE AFL_CMIN_ALLOW_ANY AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -I \""tmpfile"."i"\" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null; > "tmpfile"."i".done ; } &"
+        retval = system(" { "AFL_MAP_SIZE AFL_CMIN_ALLOW_ANY AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -I \""tmpfile"."i"\" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null; > "tmpfile"."i".done ; } &")
+      }
     }
-    exit retval
+    print "[*] Waiting for parallel tasks to complete ..."
+    # wait for all processes to finish
+    ok=0
+    while (ok < threads) {
+      ok=0
+      for (i = 1; i <= threads; i++) {
+        if (system("test -f "tmpfile"."i".done") == 0) {
+          ok++
+        }
+      }
+    }
+    print "[*] Done!"
+    system("rm -f "tmpfile"*")
+  } else {
+    if (!stdin_file) {
+      print "    Processing "in_count" files (forkserver mode)..."
+#      print AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -- \""target_bin"\" "prog_args_string
+      retval = system(AFL_MAP_SIZE AFL_CMIN_ALLOW_ANY AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -- \""target_bin"\" "prog_args_string)
+    } else {
+      print "    Processing "in_count" files (forkserver mode)..."
+#    print AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null"
+      retval = system(AFL_MAP_SIZE AFL_CMIN_ALLOW_ANY AFL_CMIN_CRASHES_ONLY"\""showmap"\" -m "mem_limit" -t "timeout" -o \""trace_dir"\" -Z "extra_par" -i \""in_dir"\" -H \""stdin_file"\" -- \""target_bin"\" "prog_args_string" </dev/null")
+    }
+
+    if (retval && (!AFL_CMIN_CRASHES_ONLY && !AFL_CMIN_ALLOW_ANY)) {
+      print "[!] Exit code "retval" != 0 received from afl-showmap (this means a crashing or timeout input is likely present), terminating..."
+
+      if (!ENVIRON["AFL_KEEP_TRACES"]) {
+        system("rm -rf "trace_dir" 2>/dev/null")
+        system("rmdir "out_dir)
+      }
+      exit retval
+    }
+
   }
 
   #######################################################
@@ -463,9 +598,19 @@ BEGIN {
   while (cur < in_count) {
     fn = infilesSmallToBig[cur]
     ++cur
-    printf "\r    Processing file "cur"/"in_count
+    if (redirected == 0) { printf "\r    Processing file "cur"/"in_count }
+    else { print "    Processing file "cur"/"in_count }
     # create path for the trace file from afl-showmap
     tracefile_path = trace_dir"/"fn
+    # ensure the file size is not zero
+    cmd = "du -b \""tracefile_path"\""
+    # "ls -l \""tracefile_path"\""
+    cmd | getline output
+    close(cmd)
+    split(output, result, "\t")
+    if (result[1] == 0) {
+      print "[!] WARNING: file "fn" is crashing the target, ignoring..."
+    }
     # gather all keys, and count them
     while ((getline line < tracefile_path) > 0) {
         key = line
@@ -502,7 +647,9 @@ BEGIN {
     key = field[nrFields]
 
     ++tcnt;
-    printf "\r    Processing tuple "tcnt"/"tuple_count" with count "key_count[key]"..."
+    if (redirected == 0) { printf "\r    Processing tuple "tcnt"/"tuple_count" with count "key_count[key]"..." }
+    else { print "    Processing tuple "tcnt"/"tuple_count" with count "key_count[key]"..." }
+
     if (key in keyAlreadyKnown) {
       continue
     }

afl-cmin.bash

@@ -7,6 +7,8 @@
 #
 # Copyright 2014, 2015 Google Inc. All rights reserved.
 #
+# Copyright 2019-2024 AFLplusplus
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at:
@@ -36,7 +38,7 @@
 # array sizes.
 #
 
-echo "corpus minimization tool for afl-fuzz by Michal Zalewski"
+echo "corpus minimization tool for afl-fuzz"
 echo
 
 #########
@@ -46,14 +48,14 @@ echo
 # Process command-line options...
 
 MEM_LIMIT=none
-TIMEOUT=none
+TIMEOUT=5000
 
-unset IN_DIR OUT_DIR STDIN_FILE EXTRA_PAR MEM_LIMIT_GIVEN \
-  AFL_CMIN_CRASHES_ONLY AFL_CMIN_ALLOW_ANY QEMU_MODE UNICORN_MODE
+unset IN_DIR OUT_DIR STDIN_FILE EXTRA_PAR MEM_LIMIT_GIVEN F_ARG \
+  AFL_CMIN_CRASHES_ONLY AFL_CMIN_ALLOW_ANY QEMU_MODE UNICORN_MODE T_ARG
 
 export AFL_QUIET=1
 
-while getopts "+i:o:f:m:t:eOQUCh" opt; do
+while getopts "+i:o:f:m:t:T:eOQUAChXY" opt; do
 
   case "$opt" in 
 
@@ -69,6 +71,7 @@ while getopts "+i:o:f:m:t:eOQUCh" opt; do
          ;;
     "f")
          STDIN_FILE="$OPTARG"
+         F_ARG=1
          ;;
     "m")
          MEM_LIMIT="$OPTARG"
@@ -80,6 +83,9 @@ while getopts "+i:o:f:m:t:eOQUCh" opt; do
     "e")
          EXTRA_PAR="$EXTRA_PAR -e"
          ;;
+    "A")
+         export AFL_CMIN_ALLOW_ANY=1
+         ;;
     "C")
          export AFL_CMIN_CRASHES_ONLY=1
          ;;
@@ -91,10 +97,21 @@ while getopts "+i:o:f:m:t:eOQUCh" opt; do
          EXTRA_PAR="$EXTRA_PAR -Q"
          QEMU_MODE=1
          ;;
+    "Y")
+         EXTRA_PAR="$EXTRA_PAR -X"
+         NYX_MODE=1
+         ;;
+    "X")
+         EXTRA_PAR="$EXTRA_PAR -X"
+         NYX_MODE=1
+         ;;
     "U")
          EXTRA_PAR="$EXTRA_PAR -U"
          UNICORN_MODE=1
          ;;    
+    "T")
+         T_ARG="$OPTARG"
+         ;;
     "?")
          exit 1
          ;;
@@ -119,25 +136,31 @@ Required parameters:
 
 Execution control settings:
 
-  -f file       - location read by the fuzzed program (stdin)
-  -m megs       - memory limit for child process ($MEM_LIMIT MB)
-  -t msec       - run time limit for child process (none)
+  -T tasks      - how many parallel processes to create (default=1, "all"=nproc)
+  -f file       - location read by the fuzzed program (default: stdin)
+  -m megs       - memory limit for child process (default=$MEM_LIMIT MB)
+  -t msec       - run time limit for child process (default: 5000ms)
   -O            - use binary-only instrumentation (FRIDA mode)
   -Q            - use binary-only instrumentation (QEMU mode)
   -U            - use unicorn-based instrumentation (Unicorn mode)
+  -X            - use Nyx mode
   
 Minimization settings:
 
+  -A            - allow crashing and timeout inputs
   -C            - keep crashing inputs, reject everything else
   -e            - solve for edge coverage only, ignore hit counts
 
 For additional tips, please consult README.md.
+This script cannot read filenames that end with a space ' '.
 
 Environment variables used:
 AFL_KEEP_TRACES: leave the temporary <out_dir>\.traces directory
 AFL_NO_FORKSRV: run target via execve instead of using the forkserver
 AFL_PATH: last resort location to find the afl-showmap binary
 AFL_SKIP_BIN_CHECK: skip check for target binary
+AFL_CUSTOM_MUTATOR_LIBRARY: custom mutator library (post_process and send)
+AFL_PYTHON_MODULE: custom mutator library (post_process and send)
 _EOF_
   exit 1
 fi
@@ -145,29 +168,28 @@ fi
 # Do a sanity check to discourage the use of /tmp, since we can't really
 # handle this safely from a shell script.
 
-#if [ "$AFL_ALLOW_TMP" = "" ]; then
-#
-#  echo "$IN_DIR" | grep -qE '^(/var)?/tmp/'
-#  T1="$?"
-#
-#  echo "$TARGET_BIN" | grep -qE '^(/var)?/tmp/'
-#  T2="$?"
-#
-#  echo "$OUT_DIR" | grep -qE '^(/var)?/tmp/'
-#  T3="$?"
-#
-#  echo "$STDIN_FILE" | grep -qE '^(/var)?/tmp/'
-#  T4="$?"
-#
-#  echo "$PWD" | grep -qE '^(/var)?/tmp/'
-#  T5="$?"
-#
-#  if [ "$T1" = "0" -o "$T2" = "0" -o "$T3" = "0" -o "$T4" = "0" -o "$T5" = "0" ]; then
-#    echo "[-] Error: do not use this script in /tmp or /var/tmp." 1>&2
-#    exit 1
-#  fi
-#
-#fi
+if [ "$AFL_ALLOW_TMP" = "" ]; then
+
+  echo "$IN_DIR" | grep -qE '^(/var)?/tmp/'
+  T1="$?"
+
+  echo "$TARGET_BIN" | grep -qE '^(/var)?/tmp/'
+  T2="$?"
+
+  echo "$OUT_DIR" | grep -qE '^(/var)?/tmp/'
+  T3="$?"
+
+  echo "$STDIN_FILE" | grep -qE '^(/var)?/tmp/'
+  T4="$?"
+
+  echo "$PWD" | grep -qE '^(/var)?/tmp/'
+  T5="$?"
+
+  if [ "$T1" = "0" -o "$T2" = "0" -o "$T3" = "0" -o "$T4" = "0" -o "$T5" = "0" ]; then
+    echo "[-] Warning: do not use this script in /tmp or /var/tmp for security reasons." 1>&2
+  fi
+
+fi
 
 # If @@ is specified, but there's no -f, let's come up with a temporary input
 # file name.
@@ -184,6 +206,11 @@ fi
 
 # Check for obvious errors.
 
+if [ ! "$T_ARG" = "" -a -n "$F_ARG" -a ! "$NYX_MODE" == 1 ]; then
+  echo "[-] Error: -T and -f can not be used together." 1>&2
+  exit 1
+fi
+
 if [ ! "$MEM_LIMIT" = "none" ]; then
 
   if [ "$MEM_LIMIT" -lt "5" ]; then
@@ -202,20 +229,32 @@ if [ ! "$TIMEOUT" = "none" ]; then
 
 fi
 
-if [ ! -f "$TARGET_BIN" -o ! -x "$TARGET_BIN" ]; then
+if [ "$NYX_MODE" = "" ]; then
+  if [ ! -f "$TARGET_BIN" -o ! -x "$TARGET_BIN" ]; then
 
-  TNEW="`which "$TARGET_BIN" 2>/dev/null`"
+    TNEW="`which "$TARGET_BIN" 2>/dev/null`"
+
+    if [ ! -f "$TNEW" -o ! -x "$TNEW" ]; then
+      echo "[-] Error: binary '$TARGET_BIN' not found or not executable." 1>&2
+      exit 1
+    fi
+
+    TARGET_BIN="$TNEW"
 
-  if [ ! -f "$TNEW" -o ! -x "$TNEW" ]; then
-    echo "[-] Error: binary '$TARGET_BIN' not found or not executable." 1>&2
-    exit 1
   fi
 
-  TARGET_BIN="$TNEW"
-
 fi
 
-if [ "$AFL_SKIP_BIN_CHECK" = "" -a "$QEMU_MODE" = "" -a "$FRIDA_MODE" = "" -a "$UNICORN_MODE" = "" ]; then
+grep -aq AFL_DUMP_MAP_SIZE "$TARGET_BIN" && {
+  echo "[!] Trying to obtain the map size of the target ..."
+  MAPSIZE=`AFL_DUMP_MAP_SIZE=1 "./$TARGET_BIN" 2>/dev/null`
+  test -n "$MAPSIZE" && {
+    export AFL_MAP_SIZE=$MAPSIZE
+    echo "[+] Setting AFL_MAP_SIZE=$MAPSIZE"
+  }
+}
+
+if [ "$AFL_SKIP_BIN_CHECK" = "" -a "$QEMU_MODE" = "" -a "$FRIDA_MODE" = "" -a "$UNICORN_MODE" = "" -a "$NYX_MODE" = "" ]; then
 
   if ! grep -qF "__AFL_SHM_ID" "$TARGET_BIN"; then
     echo "[-] Error: binary '$TARGET_BIN' doesn't appear to be instrumented." 1>&2
@@ -272,14 +311,41 @@ if [ ! -x "$SHOWMAP" ]; then
   exit 1
 fi
 
+THREADS=
+if [ ! "$T_ARG" = "" ]; then
+  if [ "$T_ARG" = "all" ]; then
+    THREADS=$(nproc)
+  else
+    if [ "$T_ARG" -gt 1 -a "$T_ARG" -le "$(nproc)" ]; then
+      THREADS=$T_ARG
+    else
+      echo "[-] Error: -T parameter must between 2 and $(nproc) or \"all\"." 1>&2
+    fi
+  fi
+else
+  if [ -z "$F_ARG" ]; then
+    echo "[*] Are you aware of the '-T all' parallelize option that massively improves the speed?"
+  fi
+fi
+
 IN_COUNT=$((`ls -- "$IN_DIR" 2>/dev/null | wc -l`))
 
 if [ "$IN_COUNT" = "0" ]; then
-  echo "[+] Hmm, no inputs in the target directory. Nothing to be done."
+  echo "[-] Hmm, no inputs in the target directory. Nothing to be done."
   rm -rf "$TRACE_DIR"
   exit 1
 fi
 
+echo "[*] Are you aware that afl-cmin is faster than this afl-cmin.bash script?"
+echo "[+] Found $IN_COUNT files for minimizing."
+
+if [ -n "$THREADS" ]; then
+  if [ "$IN_COUNT" -lt "$THREADS" ]; then
+    THREADS=$IN_COUNT
+    echo "[!] WARNING: less inputs than threads, reducing threads to $THREADS and likely the overhead of threading makes things slower..."
+  fi
+fi
+
 FIRST_FILE=`ls "$IN_DIR" | head -1`
 
 # Make sure that we're not dealing with a directory.
@@ -328,6 +394,18 @@ else
 
 fi
 
+TMPFILE=$OUT_DIR/.list.$$
+if [ ! "$THREADS" = "" ]; then
+  ls -- "$IN_DIR" > $TMPFILE 2>/dev/null
+  IN_COUNT=$(cat $TMPFILE | wc -l)
+  SPLIT=$(($IN_COUNT / $THREADS))
+  if [ "$(($IN_COUNT % $THREADS))" -gt 0 ]; then
+    SPLIT=$(($SPLIT + 1))
+  fi
+  echo "[+] Splitting workload into $THREADS tasks with $SPLIT items on average each."
+  split -l $SPLIT $TMPFILE $TMPFILE.
+fi
+
 # Let's roll!
 
 #############################
@@ -336,6 +414,7 @@ fi
 
 echo "[*] Obtaining traces for input files in '$IN_DIR'..."
 
+if [ "$THREADS" = "" ]; then
 (
 
   CUR=0
@@ -344,10 +423,14 @@ echo "[*] Obtaining traces for input files in '$IN_DIR'..."
 
     ls "$IN_DIR" | while read -r fn; do
 
-      CUR=$((CUR+1))
-      printf "\\r    Processing file $CUR/$IN_COUNT... "
+      if [ -s "$IN_DIR/$fn" ]; then
 
-      "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+        CUR=$((CUR+1))
+        printf "\\r    Processing file $CUR/$IN_COUNT... "
+
+        "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+      
+      fi
 
     done
 
@@ -355,21 +438,73 @@ echo "[*] Obtaining traces for input files in '$IN_DIR'..."
 
     ls "$IN_DIR" | while read -r fn; do
 
-      CUR=$((CUR+1))
-      printf "\\r    Processing file $CUR/$IN_COUNT... "
+      if [ -s "$IN_DIR/$fn" ]; then
 
-      cp "$IN_DIR/$fn" "$STDIN_FILE"
+        CUR=$((CUR+1))
+        printf "\\r    Processing file $CUR/$IN_COUNT... "
 
-      "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
+        cp "$IN_DIR/$fn" "$STDIN_FILE"
+        "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
+
+      fi
 
     done
 
-
   fi
 
+  echo
+
 )
 
-echo
+else
+
+  PIDS=
+  CNT=0
+  for inputs in $(ls ${TMPFILE}.*); do
+
+(
+
+  if [ "$STDIN_FILE" = "" ]; then
+
+    cat $inputs | while read -r fn; do
+
+      if [ -s "$IN_DIR/$fn" ]; then
+
+        "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+
+      fi
+
+    done
+
+  else
+
+    if [ -s "$IN_DIR/$fn" ]; then
+      STDIN_FILE="$inputs.$$"
+      cat $inputs | while read -r fn; do
+
+        cp "$IN_DIR/$fn" "$STDIN_FILE"
+        "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
+
+      done
+
+    fi
+
+  fi
+
+) &
+
+  PIDS="$PIDS $!"
+  done
+
+  echo "[+] Waiting for running tasks IDs:$PIDS"
+  wait
+  echo "[+] all $THREADS running tasks completed."
+  rm -f ${TMPFILE}*
+
+  #echo trace dir files: $(ls $TRACE_DIR/*|wc -l)
+
+fi
+
 
 ##########################
 # STEP 2: SORTING TUPLES #
@@ -410,6 +545,8 @@ ls -rS "$IN_DIR" | while read -r fn; do
 
   sed "s#\$# $fn#" "$TRACE_DIR/$fn" >>"$TRACE_DIR/.candidate_list"
 
+  test -s "$TRACE_DIR/$fn" || echo Warning: $fn is ignored because of crashing the target
+
 done
 
 echo

afl-persistent-config

@@ -2,7 +2,7 @@
 # written by jhertz
 # 
 
-test "$1" = "-h" -o "$1" = "-hh" && {
+test "$1" = "-h" -o "$1" = "-hh" -o "$1" = "--help" && {
   echo 'afl-persistent-config'
   echo
   echo $0
@@ -17,6 +17,11 @@ test "$1" = "-h" -o "$1" = "-hh" && {
   exit 0
 }
 
+if [ $# -ne 0 ]; then
+  echo "ERROR: Unknown option(s): $@"
+  exit 1
+fi
+
 echo
 echo "WARNING: This scripts makes permanent configuration changes to the system to"
 echo "         increase the performance for fuzzing. As a result, the system also"
@@ -33,6 +38,7 @@ fi
 
 echo
 PLATFORM=`uname -s`
+ARCH=`uname -m`
 
 # check that we're on Mac
 if [[ "$PLATFORM" = "Darwin" ]] ; then
@@ -82,6 +88,13 @@ if [[ "$PLATFORM" = "Darwin" ]] ; then
 </plist>
 EOF
 
+  if [[ "$ARCH" = "x86_64" ]]; then
+    echo "Disabling ASLR system wide"
+    nvram boot-args="no_aslr=1"
+  else
+    echo NOTICE: on ARM64 we do not know currently how to disable system wide ASLR, please report if you know how.
+  fi
+
   echo
   echo "Reboot and enjoy your fuzzing"
   exit 0
@@ -98,9 +111,9 @@ if [[ "$PLATFORM" = "Linux" ]] ; then
   echo "Checks passed."
 
   test -d /etc/sysctl.d || echo Error: /etc/sysctl.d directory not found, cannot install shmem config
-  test -d /etc/sysctl.d -a '!' -e /etc/sysctl.d/99-fuzzing && {
-    echo "Installing /etc/sysctl.d/99-fuzzing"
-    cat << EOF > /etc/sysctl.d/99-fuzzing
+  test -d /etc/sysctl.d -a '!' -e /etc/sysctl.d/99-fuzzing.conf && {
+    echo "Installing /etc/sysctl.d/99-fuzzing.conf"
+    cat << EOF > /etc/sysctl.d/99-fuzzing.conf
 kernel.core_uses_pid=0
 kernel.core_pattern=core
 kernel.randomize_va_space=0
@@ -111,17 +124,26 @@ kernel.sched_latency_ns=250000000
 EOF
   }
 
-  egrep -q '^GRUB_CMDLINE_LINUX_DEFAULT=' /etc/default/grub 2>/dev/null || echo Error: /etc/default/grub with GRUB_CMDLINE_LINUX_DEFAULT is not present, cannot set boot options
-  egrep -q '^GRUB_CMDLINE_LINUX_DEFAULT=' /etc/default/grub 2>/dev/null && {
-    egrep '^GRUB_CMDLINE_LINUX_DEFAULT=' /etc/default/grub | egrep -q hardened_usercopy=off || {
+  grub_try_disable_mitigation () {
+    KEY="$1"
+    if ! grep -E "^$KEY=" /etc/default/grub | grep -E -q 'noibrs pcid nopti'; then
       echo "Configuring performance boot options"
-      LINE=`egrep '^GRUB_CMDLINE_LINUX_DEFAULT=' /etc/default/grub | sed 's/^GRUB_CMDLINE_LINUX_DEFAULT=//' | tr -d '"'`
-      OPTIONS="$LINE ibpb=off ibrs=off kpti=off l1tf=off mds=off mitigations=off no_stf_barrier noibpb noibrs nopcid nopti nospec_store_bypass_disable nospectre_v1 nospectre_v2 pcid=off pti=off spec_store_bypass_disable=off spectre_v2=off stf_barrier=off srbds=off noexec=off noexec32=off tsx=on tsx=on tsx_async_abort=off mitigations=off audit=0 hardened_usercopy=off ssbd=force-off"
-      echo Setting boot options in /etc/default/grub to GRUB_CMDLINE_LINUX_DEFAULT=\"$OPTIONS\"
-      sed -i "s|^GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT=\"$OPTIONS\"|" /etc/default/grub
-    }
+      LINE=`grep -E "^$KEY=" /etc/default/grub | sed "s/^$KEY=//" | tr -d '"'`
+      OPTIONS="$LINE ibpb=off ibrs=off kpti=off l1tf=off spec_rstack_overflow=off mds=off no_stf_barrier noibpb noibrs pcid nopti nospec_store_bypass_disable nospectre_v1 nospectre_v2 pcid=on pti=off spec_store_bypass_disable=off spectre_v2=off stf_barrier=off srbds=off noexec=off noexec32=off tsx=on tsx=on tsx_async_abort=off mitigations=off audit=0 hardened_usercopy=off ssbd=force-off"
+      echo Setting boot options in /etc/default/grub to $KEY=\"$OPTIONS\"
+      sed -i "s|^$KEY=.*|$KEY=\"$OPTIONS\"|" /etc/default/grub
+    fi
   }
 
+
+  if grep -E -q '^GRUB_CMDLINE_LINUX=' /etc/default/grub || grep -E -q '^GRUB_CMDLINE_LINUX_DEFAULT=' /etc/default/grub; then
+    grub_try_disable_mitigation "GRUB_CMDLINE_LINUX_DEFAULT"
+    # We also overwrite GRUB_CMDLINE_LINUX because some distributions already overwrite GRUB_CMDLINE_LINUX_DEFAULT
+    grub_try_disable_mitigation "GRUB_CMDLINE_LINUX"
+  else
+    echo "Error: /etc/default/grub with GRUB_CMDLINE_LINUX is not present, cannot set boot options"
+  fi
+
   echo
   echo "Reboot and enjoy your fuzzing"
   exit 0

afl-plot

@@ -75,8 +75,17 @@ outputdir=`get_abs_path "$2"`
 
 if [ ! -f "$inputdir/plot_data" ]; then
 
-  echo "[-] Error: input directory is not valid (missing 'plot_data')." 1>&2
-  exit 1
+  if [ -f "$inputdir/default/plot_data" ]; then
+
+    echo "[-] Error: input directory is not valid (missing 'plot_data'), likely you mean $inputdir/default?" 1>&2
+    exit 1
+
+  else
+
+    echo "[-] Error: input directory is not valid (missing 'plot_data')." 1>&2
+    exit 1
+
+  fi
 
 fi
 
@@ -141,7 +150,7 @@ set output '$outputdir/high_freq.png'
 $GNUPLOT_SETUP
 
 plot '$inputdir/plot_data' using 1:4 with filledcurve x1 title 'corpus count' linecolor rgb '#000000' fillstyle transparent solid 0.2 noborder, \\
-     '' using 1:3 with filledcurve x1 title 'current fuzz item' linecolor rgb '#f0f0f0' fillstyle transparent solid 0.5 noborder, \\
+     '' using 1:3 with filledcurve x1 title 'current item' linecolor rgb '#f0f0f0' fillstyle transparent solid 0.5 noborder, \\
      '' using 1:5 with lines title 'pending items' linecolor rgb '#0090ff' linewidth 3, \\
      '' using 1:6 with lines title 'pending favs' linecolor rgb '#c00080' linewidth 3, \\
      '' using 1:2 with lines title 'cycles done' linecolor rgb '#c000f0' linewidth 3
@@ -287,9 +296,9 @@ $PLOT_EG
 
 _EOF_
 
-) | gnuplot
+) | gnuplot || echo "Note: if you see errors concerning 'unknown or ambiguous terminal type' then you need to use a gnuplot that has png support compiled in."
 
-echo "[?] You can also use -g flag to view the plots in an GUI window, and interact with the plots (if you have built afl-plot-ui). Run \"afl-plot-h\" to know more."
+echo "[?] You can also use -g flag to view the plots in an GUI window, and interact with the plots (if you have built afl-plot-ui). Run \"afl-plot -h\" to know more."
 
 fi
 

afl-system-config

@@ -1,5 +1,5 @@
 #!/bin/sh
-test "$1" = "-h" -o "$1" = "-hh" && {
+test "$1" = "-h" -o "$1" = "-hh" -o "$1" = "--help" && {
   echo 'afl-system-config by Marc Heuse <mh@mh-sec.de>'
   echo
   echo $0
@@ -13,6 +13,10 @@ test "$1" = "-h" -o "$1" = "-hh" && {
   echo configuration options.
   exit 0
 }
+if [ $# -ne 0 ]; then
+  echo "ERROR: Unknown option(s): $@"
+  exit 1
+fi
 
 DONE=
 PLATFORM=`uname -s`
@@ -21,6 +25,7 @@ echo "WARNING: this reduces the security of the system!"
 echo
 if [ '!' "$EUID" = 0 ] && [ '!' `id -u` = 0 ] ; then
 	echo "Warning: you need to be root to run this!"
+	sleep 1
 	# we do not exit as other mechanisms exist that allows to do this than
 	# being root. let the errors speak for themselves.
 fi
@@ -47,9 +52,9 @@ if [ "$PLATFORM" = "Linux" ] ; then
 } > /dev/null
   echo Settings applied.
   echo
-  dmesg | egrep -q 'nospectre_v2|spectre_v2=off' || {
+  dmesg | grep -E -q 'noibrs pcid nopti' || {
     echo It is recommended to boot the kernel with lots of security off - if you are running a machine that is in a secured network - so set this:
-    echo '  /etc/default/grub:GRUB_CMDLINE_LINUX_DEFAULT="ibpb=off ibrs=off kpti=0 l1tf=off mds=off mitigations=off no_stf_barrier noibpb noibrs nopcid nopti nospec_store_bypass_disable nospectre_v1 nospectre_v2 pcid=off pti=off spec_store_bypass_disable=off spectre_v2=off stf_barrier=off srbds=off noexec=off noexec32=off tsx=on tsx_async_abort=off arm64.nopauth audit=0 hardened_usercopy=off ssbd=force-off"'
+    echo '  /etc/default/grub:GRUB_CMDLINE_LINUX_DEFAULT="ibpb=off ibrs=off kpti=0 l1tf=off mds=off mitigations=off no_stf_barrier noibpb noibrs pcid nopti nospec_store_bypass_disable nospectre_v1 nospectre_v2 pcid=on pti=off spec_store_bypass_disable=off spectre_v2=off stf_barrier=off srbds=off noexec=off noexec32=off tsx=on tsx_async_abort=off arm64.nopauth audit=0 hardened_usercopy=off ssbd=force-off"'
     echo
   }
   echo If you run fuzzing instances in docker, run them with \"--security-opt seccomp=unconfined\" for more speed.
@@ -76,6 +81,9 @@ EOF
   DONE=1
 fi
 if [ "$PLATFORM" = "OpenBSD" ] ; then
+  doas sysctl vm.malloc_conf=
+  echo 'Freecheck on allocation in particular can be detrimental to performance.'
+  echo 'Also we might not want necessarily to abort at any allocation failure.'
   echo 'System security features cannot be disabled on OpenBSD.'
   echo
   DONE=1
@@ -107,15 +115,16 @@ if [ "$PLATFORM" = "Darwin" ] ; then
   sysctl kern.sysv.shmall=131072000
   echo Settings applied.
   echo
-  if [ $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') ] ; then
+  if $(launchctl list 2>/dev/null | grep -q '\.ReportCrash\>') ; then
     echo
     echo Unloading the default crash reporter
     SL=/System/Library; PL=com.apple.ReportCrash
-    launchctl unload -w ${SL}/LaunchAgents/${PL}.plist >/dev/null 2>&1
-    sudo launchctl unload -w ${SL}/LaunchDaemons/${PL}.Root.plist >/dev/null 2>&1
+    sudo -u "$SUDO_USER" launchctl unload -w ${SL}/LaunchAgents/${PL}.plist
+    launchctl unload -w ${SL}/LaunchDaemons/${PL}.Root.plist
     echo
   fi
-  echo It is recommended to disable System Integration Protection for increased performance.
+  echo It is recommended to disable System Integrity Protection for increased performance.
+  echo See: https://developer.apple.com/documentation/security/disabling_and_enabling_system_integrity_protection
   echo
   DONE=1
 fi

afl-whatsup

@@ -6,7 +6,7 @@
 # Originally written by Michal Zalewski
 #
 # Copyright 2015 Google Inc. All rights reserved.
-# Copyright 2019-2020 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2024 AFLplusplus Project. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,91 +18,136 @@
 # instances of afl-fuzz.
 #
 
-echo "$0 status check tool for afl-fuzz by Michal Zalewski"
-echo
 test "$1" = "-h" -o "$1" = "-hh" && {
+  echo "$0 status check tool for afl-fuzz by Michal Zalewski"
+  echo
   echo "Usage: $0 [-s] [-d] afl_output_directory"
   echo
   echo Options:
-  echo "  -s  -  skip details and output summary results only"
   echo "  -d  -  include dead fuzzer stats"
+  echo "  -m  -  just show minimal stats"
+  echo "  -n  -  no color output"
+  echo "  -s  -  skip details and output summary results only"
   echo
   exit 1
 }
 
-unset SUMMARY_ONLY
+unset MINIMAL_ONLY
+unset NO_COLOR
 unset PROCESS_DEAD
+unset SUMMARY_ONLY
+unset RED
+unset GREEN
+unset YELLOW
+unset BLUE
+unset NC
+unset RESET
 
-while [ "$1" = "-s" -o "$1" = "-d" ]; do
-
-  if [ "$1" = "-s" ]; then
-    SUMMARY_ONLY=1
-  fi
+if [ -z "$TERM" ]; then export TERM=vt220; fi
 
+while [ "$1" = "-d" -o "$1" = "-m"  -o "$1" = "-n"  -o "$1" = "-s" ]; do
+  
   if [ "$1" = "-d" ]; then
     PROCESS_DEAD=1
   fi
   
+  if [ "$1" = "-m" ]; then
+    MINIMAL_ONLY=1
+  fi
+  
+  if [ "$1" = "-n" ]; then
+    NO_COLOR=1
+  fi
+  
+  if [ "$1" = "-s" ]; then
+    SUMMARY_ONLY=1
+  fi
+  
   shift
-
+  
 done
 
 DIR="$1"
 
-if [ "$DIR" = "" ]; then
-
-  echo "Usage: $0 [-s] [-d] afl_output_directory" 1>&2
+if [ "$DIR" = "" -o "$DIR" = "-h" -o "$DIR" = "--help" ]; then
+  
+  echo "$0 status check tool for afl-fuzz by Michal Zalewski" 1>&2
+  echo 1>&2
+  echo "Usage: $0 [-d] [-m] [-n] [-s] afl_output_directory" 1>&2
   echo 1>&2
   echo Options: 1>&2
-  echo "  -s  -  skip details and output summary results only" 1>&2
   echo "  -d  -  include dead fuzzer stats" 1>&2
+  echo "  -m  -  just show minimal stats" 1>&2
+  echo "  -n  -  no color output" 1>&2
+  echo "  -s  -  skip details and output summary results only" 1>&2
   echo 1>&2
   exit 1
+  
+fi
 
+if [ -z "$MINIMAL_ONLY" ]; then
+  echo "$0 status check tool for afl-fuzz by Michal Zalewski"
+  echo
 fi
 
 cd "$DIR" || exit 1
 
 if [ -d queue ]; then
-
+  
   echo "[-] Error: parameter is an individual output directory, not a sync dir." 1>&2
   exit 1
-
+  
 fi
 
-RED=`tput setaf 9 1 1`
-GREEN=`tput setaf 2 1 1`
-BLUE=`tput setaf 4 1 1`
-YELLOW=`tput setaf 11 1 1`
-NC=`tput sgr0`
-RESET="$NC"
+BC=`which bc 2>/dev/null`
+FUSER=`which fuser 2>/dev/null`
 
-CUR_TIME=`date +%s`
+if [ -z "$NO_COLOR" ]; then
+  RED=`tput setaf 9 1 1 2>/dev/null`
+  GREEN=`tput setaf 2 1 1 2>/dev/null`
+  BLUE=`tput setaf 4 1 1 2>/dev/null`
+  YELLOW=`tput setaf 11 1 1 2>/dev/null`
+  NC=`tput sgr0`
+  RESET="$NC"
+fi
+
+PLATFORM=`uname -s`
+if [ "$PLATFORM" = "Linux" ] ; then
+  CUR_TIME=`cat /proc/uptime | awk '{printf "%.0f\n", $1}'`
+else
+  # This will lead to inacurate results but will prevent the script from breaking on platforms other than Linux
+  CUR_TIME=`date +%s`
+fi
 
 TMP=`mktemp -t .afl-whatsup-XXXXXXXX` || TMP=`mktemp -p /data/local/tmp .afl-whatsup-XXXXXXXX` || TMP=`mktemp -p /data/local/tmp .afl-whatsup-XXXXXXXX` || exit 1
+trap "rm -f $TMP" 1 2 3 13 15
 
 ALIVE_CNT=0
 DEAD_CNT=0
+START_CNT=0
 
 TOTAL_TIME=0
 TOTAL_EXECS=0
 TOTAL_EPS=0
+TOTAL_EPLM=0
 TOTAL_CRASHES=0
+TOTAL_HANGS=0
 TOTAL_PFAV=0
 TOTAL_PENDING=0
+TOTAL_COVERAGE=
 
-# Time since last path / crash / hang, formatted as string
+# Time since last find / crash / hang, formatted as string
 FMT_TIME="0 days 0 hours"
-FMT_PATH="${RED}none seen yet${NC}"
+FMT_FIND="${RED}none seen yet${NC}"
 FMT_CRASH="none seen yet"
 FMT_HANG="none seen yet"
 
 if [ "$SUMMARY_ONLY" = "" ]; then
-
+  
   echo "Individual fuzzers"
   echo "=================="
   echo
-
+  
 fi
 
 fmt_duration()
@@ -111,22 +156,22 @@ fmt_duration()
   if [ $1 -le 0 ]; then
     return 1
   fi
-
+  
   local duration=$((CUR_TIME - $1))
   local days=$((duration / 60 / 60 / 24))
   local hours=$(((duration / 60 / 60) % 24))
   local minutes=$(((duration / 60) % 60))
   local seconds=$((duration % 60))
-
+  
   if [ $duration -le 0 ]; then
     DUR_STRING="0 seconds"
-  elif [ $duration -eq 1 ]; then
+    elif [ $duration -eq 1 ]; then
     DUR_STRING="1 second"
-  elif [ $days -gt 0 ]; then
+    elif [ $days -gt 0 ]; then
     DUR_STRING="$days days, $hours hours"
-  elif [ $hours -gt 0 ]; then
+    elif [ $hours -gt 0 ]; then
     DUR_STRING="$hours hours, $minutes minutes"
-  elif [ $minutes -gt 0 ]; then
+    elif [ $minutes -gt 0 ]; then
     DUR_STRING="$minutes minutes, $seconds seconds"
   else
     DUR_STRING="$seconds seconds"
@@ -135,115 +180,195 @@ fmt_duration()
 
 FIRST=true
 TOTAL_WCOP=
-TOTAL_LAST_PATH=0
-
-for i in `find . -maxdepth 2 -iname fuzzer_stats | sort`; do
-
-  sed 's/^command_line.*$/_skip:1/;s/[ ]*:[ ]*/="/;s/$/"/' "$i" >"$TMP"
-  . "$TMP"
-
-  RUN_UNIX=$run_time
-  RUN_DAYS=$((RUN_UNIX / 60 / 60 / 24))
-  RUN_HRS=$(((RUN_UNIX / 60 / 60) % 24))
-
-  test -n "$cycles_wo_finds" && {
-    test -z "$FIRST" && TOTAL_WCOP="${TOTAL_WCOP}/"
-    TOTAL_WCOP="${TOTAL_WCOP}${cycles_wo_finds}"
-    FIRST=
-  }
-
-  if [ "$SUMMARY_ONLY" = "" ]; then
-
-    echo ">>> $afl_banner ($RUN_DAYS days, $RUN_HRS hrs) fuzzer PID: $fuzzer_pid <<<"
-    echo
-
-  fi
-
-  if ! kill -0 "$fuzzer_pid" 2>/dev/null; then
-
-    if [ "$SUMMARY_ONLY" = "" ]; then
-
-      echo "  Instance is dead or running remotely, skipping."
-      echo
+TOTAL_LAST_FIND=0
 
+for j in `find . -maxdepth 2 -iname fuzzer_setup | sort`; do
+  
+  DIR=$(dirname "$j")
+  i=$DIR/fuzzer_stats
+  
+  if [ -f "$i" ]; then
+    
+    IS_STARTING=
+    IS_DEAD=
+    sed 's/^command_line.*$/_skip:1/;s/[ ]*:[ ]*/="/;s/$/"/' "$i" >"$TMP"
+    . "$TMP"
+    DIRECTORY=$DIR
+    DIR=${DIR##*/}
+    RUN_UNIX=$run_time
+    RUN_DAYS=$((RUN_UNIX / 60 / 60 / 24))
+    RUN_HRS=$(((RUN_UNIX / 60 / 60) % 24))
+    COVERAGE=$(echo $bitmap_cvg|tr -d %)
+    if [ -n "$TOTAL_COVERAGE" -a -n "$COVERAGE" -a -n "$BC" ]; then
+      if [ "$(echo "$TOTAL_COVERAGE < $COVERAGE" | bc)" -eq 1 ]; then
+        TOTAL_COVERAGE=$COVERAGE
+      fi
     fi
-
-    DEAD_CNT=$((DEAD_CNT + 1))
-    last_path=0
-
-    if [ "$PROCESS_DEAD" = "" ]; then
-
-      continue
-
-    fi
-
-  fi
-
-  ALIVE_CNT=$((ALIVE_CNT + 1))
-
-  EXEC_SEC=0
-  test -z "$RUN_UNIX" -o "$RUN_UNIX" = 0 || EXEC_SEC=$((execs_done / RUN_UNIX))
-  PATH_PERC=$((cur_path * 100 / paths_total))
-
-  TOTAL_TIME=$((TOTAL_TIME + RUN_UNIX))
-  TOTAL_EPS=$((TOTAL_EPS + EXEC_SEC))
-  TOTAL_EXECS=$((TOTAL_EXECS + execs_done))
-  TOTAL_CRASHES=$((TOTAL_CRASHES + unique_crashes))
-  TOTAL_PENDING=$((TOTAL_PENDING + pending_total))
-  TOTAL_PFAV=$((TOTAL_PFAV + pending_favs))
-
-  if [ "$last_path" -gt "$TOTAL_LAST_PATH" ]; then
-    TOTAL_LAST_PATH=$last_path
-  fi
-
-  if [ "$SUMMARY_ONLY" = "" ]; then
-
-    # Warnings in red
-    TIMEOUT_PERC=$((exec_timeout * 100 / execs_done))
-    if [ $TIMEOUT_PERC -ge 10 ]; then
-      echo "  ${RED}timeout_ratio $TIMEOUT_PERC%${NC}"
-    fi
-
-    if [ $EXEC_SEC -eq 0 ]; then
-      echo "  ${YELLOW}no data yet, 0 execs/sec${NC}"
-    elif [ $EXEC_SEC -lt 100 ]; then
-      echo "  ${RED}slow execution, $EXEC_SEC execs/sec${NC}"
-    fi
-
-    fmt_duration $last_path && FMT_PATH=$DUR_STRING
-    fmt_duration $last_crash && FMT_CRASH=$DUR_STRING
-    fmt_duration $last_hang && FMT_HANG=$DUR_STRING
-    FMT_CWOP="not available"
+    if [ -z "$TOTAL_COVERAGE" ]; then TOTAL_COVERAGE=$COVERAGE ; fi
+    
     test -n "$cycles_wo_finds" && {
-      test "$cycles_wo_finds" = 0 && FMT_CWOP="$cycles_wo_finds"
-      test "$cycles_wo_finds" -gt 10 && FMT_CWOP="${YELLOW}$cycles_wo_finds${NC}"
-      test "$cycles_wo_finds" -gt 50 && FMT_CWOP="${RED}$cycles_wo_finds${NC}"
+      test -z "$FIRST" && TOTAL_WCOP="${TOTAL_WCOP}/"
+      TOTAL_WCOP="${TOTAL_WCOP}${cycles_wo_finds}"
+      FIRST=
     }
+    
+    if [ "$SUMMARY_ONLY" = "" ]; then
+      
+      echo ">>> $afl_banner instance: $DIR ($RUN_DAYS days, $RUN_HRS hrs) fuzzer PID: $fuzzer_pid <<<"
+      echo
+      
+    fi
+    
+    if ! kill -0 "$fuzzer_pid" 2>/dev/null; then
+      
+      if [ -e "$i" ] && [ -e "$j" ] && [ -n "$FUSER" ]; then
+        
+        if [ "$i" -ot "$j" ]; then
+          
+          # fuzzer_setup is newer than fuzzer_stats, maybe the instance is starting?
+          TMP_PID=`fuser -v "$DIRECTORY" 2>&1 | grep afl-fuzz`
+          
+          if [ -n "$TMP_PID" ]; then
+            
+            if [ "$SUMMARY_ONLY" = "" ]; then
+              
+              echo "  Instance is still starting up, skipping."
+              echo
+              
+            fi
+            
+            START_CNT=$((START_CNT + 1))
+            last_find=0
+            IS_STARTING=1
+            
+            if [ "$PROCESS_DEAD" = "" ]; then
+              
+              continue
+              
+            fi
+            
+          fi
+          
+        fi
+        
+      fi
+      
+      if [ -z "$IS_STARTING" ]; then
+        
+        if [ "$SUMMARY_ONLY" = "" ]; then
+          
+          echo "  Instance is dead or running remotely, skipping."
+          echo
+          
+        fi
+        
+        DEAD_CNT=$((DEAD_CNT + 1))
+        IS_DEAD=1
+        last_find=0
+        
+        if [ "$PROCESS_DEAD" = "" ]; then
+          
+          continue
+          
+        fi
+        
+      fi
+      
+    fi
+    
+    ALIVE_CNT=$((ALIVE_CNT + 1))
+    
+    EXEC_SEC=0
+    EXEC_MIN=0
+    test -z "$RUN_UNIX" -o "$RUN_UNIX" = 0 || EXEC_SEC=$((execs_done / RUN_UNIX))
+    PATH_PERC=$((cur_item * 100 / corpus_count))
 
-    echo "  last_path       : $FMT_PATH"
-    echo "  last_crash      : $FMT_CRASH"
-    echo "  last_hang       : $FMT_HANG"
-    echo "  cycles_wo_finds : $FMT_CWOP"
-
-    CPU_USAGE=$(ps aux | grep $fuzzer_pid | grep -v grep | awk '{print $3}')
-    MEM_USAGE=$(ps aux | grep $fuzzer_pid | grep -v grep | awk '{print $4}')
-
-    echo "  cpu usage $CPU_USAGE%, memory usage $MEM_USAGE%"
-    echo "  cycle $((cycles_done + 1)), lifetime speed $EXEC_SEC execs/sec, path $cur_path/$paths_total (${PATH_PERC}%)"
-
-    if [ "$unique_crashes" = "0" ]; then
-      echo "  pending $pending_favs/$pending_total, coverage $bitmap_cvg, no crashes yet"
-    else
-      echo "  pending $pending_favs/$pending_total, coverage $bitmap_cvg, crash count $unique_crashes (!)"
+    test "$IS_DEAD" = 1 || EXEC_MIN=$(echo $execs_ps_last_min|sed 's/\..*//')
+    
+    TOTAL_TIME=$((TOTAL_TIME + RUN_UNIX))
+    TOTAL_EPS=$((TOTAL_EPS + EXEC_SEC))
+    TOTAL_EPLM=$((TOTAL_EPLM + EXEC_MIN))
+    TOTAL_EXECS=$((TOTAL_EXECS + execs_done))
+    TOTAL_CRASHES=$((TOTAL_CRASHES + saved_crashes))
+    TOTAL_HANGS=$((TOTAL_HANGS + saved_hangs))
+    TOTAL_PENDING=$((TOTAL_PENDING + pending_total))
+    TOTAL_PFAV=$((TOTAL_PFAV + pending_favs))
+    
+    if [ "$last_find" -gt "$TOTAL_LAST_FIND" ]; then
+      TOTAL_LAST_FIND=$last_find
+    fi
+    
+    if [ "$SUMMARY_ONLY" = "" ]; then
+      
+      # Warnings in red
+      TIMEOUT_PERC=$((exec_timeout * 100 / execs_done))
+      if [ $TIMEOUT_PERC -ge 10 ]; then
+        echo "  ${RED}timeout_ratio $TIMEOUT_PERC%${NC}"
+      fi
+      
+      if [ $EXEC_SEC -eq 0 ]; then
+        echo "  ${YELLOW}no data yet, 0 execs/sec${NC}"
+        elif [ $EXEC_SEC -lt 100 ]; then
+        echo "  ${RED}slow execution, $EXEC_SEC execs/sec${NC}"
+      fi
+      
+      fmt_duration $last_find && FMT_FIND=$DUR_STRING
+      fmt_duration $last_crash && FMT_CRASH=$DUR_STRING
+      fmt_duration $last_hang && FMT_HANG=$DUR_STRING
+      FMT_CWOP="not available"
+      test -n "$cycles_wo_finds" && {
+        test "$cycles_wo_finds" = 0 && FMT_CWOP="$cycles_wo_finds"
+        test "$cycles_wo_finds" -gt 10 && FMT_CWOP="${YELLOW}$cycles_wo_finds${NC}"
+        test "$cycles_wo_finds" -gt 50 && FMT_CWOP="${RED}$cycles_wo_finds${NC}"
+      }
+      
+      echo "  last_find       : $FMT_FIND"
+      echo "  last_crash      : $FMT_CRASH"
+      if [ -z "$MINIMAL_ONLY" ]; then
+        echo "  last_hang       : $FMT_HANG"
+        echo "  cycles_wo_finds : $FMT_CWOP"
+      fi
+      echo "  coverage        : $COVERAGE%"
+      
+      if [ -z "$MINIMAL_ONLY" ]; then
+        
+        CPU_USAGE=$(ps aux | grep -w $fuzzer_pid | grep -v grep | awk '{print $3}')
+        MEM_USAGE=$(ps aux | grep -w $fuzzer_pid | grep -v grep | awk '{print $4}')
+        
+        echo "  cpu usage $CPU_USAGE%, memory usage $MEM_USAGE%"
+        
+      fi
+      
+      echo "  cycles $((cycles_done + 1)), lifetime speed $EXEC_SEC execs/sec, items $cur_item/$corpus_count (${PATH_PERC}%)"
+      
+      if [ "$saved_crashes" = "0" ]; then
+        echo "  pending $pending_favs/$pending_total, coverage $bitmap_cvg, no crashes yet"
+      else
+        echo "  pending $pending_favs/$pending_total, coverage $bitmap_cvg, crashes saved $saved_crashes (!)"
+      fi
+      
+      echo
+      
     fi
 
-    echo
+  else
+
+    if [ ! -e "$i" -a -e "$j" ]; then
+
+      if [ '!' "$PROCESS_DEAD" = "" ]; then
+        ALIVE_CNT=$((ALIVE_CNT + 1))
+      fi
+      START_CNT=$((START_CNT + 1))
+      last_find=0
+      IS_STARTING=1
+      
+    fi
 
   fi
-
+  
 done
 
-# Formatting for total time, time since last path, crash, and hang
+# Formatting for total time, time since last find, crash, and hang
 fmt_duration $((CUR_TIME - TOTAL_TIME)) && FMT_TIME=$DUR_STRING
 # Formatting for total execution
 FMT_EXECS="0 millions"
@@ -251,7 +376,7 @@ EXECS_MILLION=$((TOTAL_EXECS / 1000 / 1000))
 EXECS_THOUSAND=$((TOTAL_EXECS / 1000 % 1000))
 if [ $EXECS_MILLION -gt 9 ]; then
   FMT_EXECS="$EXECS_MILLION millions"
-elif [ $EXECS_MILLION -gt 0 ]; then
+  elif [ $EXECS_MILLION -gt 0 ]; then
   FMT_EXECS="$EXECS_MILLION millions, $EXECS_THOUSAND thousands"
 else
   FMT_EXECS="$EXECS_THOUSAND thousands"
@@ -263,45 +388,65 @@ TOTAL_DAYS=$((TOTAL_TIME / 60 / 60 / 24))
 TOTAL_HRS=$(((TOTAL_TIME / 60 / 60) % 24))
 
 test -z "$TOTAL_WCOP" && TOTAL_WCOP="not available"
-fmt_duration $TOTAL_LAST_PATH && TOTAL_LAST_PATH=$DUR_STRING
+fmt_duration $TOTAL_LAST_FIND && TOTAL_LAST_FIND=$DUR_STRING
 
 test "$TOTAL_TIME" = "0" && TOTAL_TIME=1
 
 if [ "$PROCESS_DEAD" = "" ]; then
-
+  
   TXT="excluded from stats"
-
+  
 else
-
+  
   TXT="included in stats"
-  ALIVE_CNT=$(($ALIVE_CNT - $DEAD_CNT))
-
+  ALIVE_CNT=$(($ALIVE_CNT - $DEAD_CNT - $START_CNT))
+  
 fi
 
 echo "Summary stats"
 echo "============="
-echo
-echo "       Fuzzers alive : $ALIVE_CNT"
+if [ -z "$SUMMARY_ONLY" -o -z "$MINIMAL_ONLY" ]; then
+  echo
+fi
+
+echo "        Fuzzers alive : $ALIVE_CNT"
+
+if [ ! "$START_CNT" = "0" ]; then
+  echo "          Starting up : $START_CNT ($TXT)"
+fi
 
 if [ ! "$DEAD_CNT" = "0" ]; then
-  echo "      Dead or remote : $DEAD_CNT ($TXT)"
+  echo "       Dead or remote : $DEAD_CNT ($TXT)"
 fi
 
-echo "      Total run time : $FMT_TIME"
-echo "         Total execs : $FMT_EXECS"
-echo "    Cumulative speed : $TOTAL_EPS execs/sec"
+echo "       Total run time : $FMT_TIME"
+if [ -z "$MINIMAL_ONLY" ]; then
+  echo "          Total execs : $FMT_EXECS"
+  echo "     Cumulative speed : $TOTAL_EPS execs/sec"
+  if [ "$ALIVE_CNT" -gt "0" ]; then
+    echo "  Total average speed : $((TOTAL_EPS / ALIVE_CNT)) execs/sec"
+  fi
+fi
 if [ "$ALIVE_CNT" -gt "0" ]; then
-  echo "       Average speed : $((TOTAL_EPS / ALIVE_CNT)) execs/sec"
+  echo "Current average speed : $TOTAL_EPLM execs/sec"
 fi
-echo "       Pending paths : $TOTAL_PFAV faves, $TOTAL_PENDING total"
-
-if [ "$ALIVE_CNT" -gt "1" ]; then
-  echo "  Pending per fuzzer : $((TOTAL_PFAV/ALIVE_CNT)) faves, $((TOTAL_PENDING/ALIVE_CNT)) total (on average)"
+if [ -z "$MINIMAL_ONLY" ]; then
+  echo "        Pending items : $TOTAL_PFAV faves, $TOTAL_PENDING total"
 fi
 
-echo "       Crashes found : $TOTAL_CRASHES locally unique"
-echo "Cycles without finds : $TOTAL_WCOP"
-echo "  Time without finds : $TOTAL_LAST_PATH"
+if [ "$ALIVE_CNT" -gt "1" -o -n "$MINIMAL_ONLY" ]; then
+  if [ "$ALIVE_CNT" -gt "0" ]; then
+    echo "   Pending per fuzzer : $((TOTAL_PFAV/ALIVE_CNT)) faves, $((TOTAL_PENDING/ALIVE_CNT)) total (on average)"
+  fi
+fi
+
+echo "     Coverage reached : ${TOTAL_COVERAGE}%"
+echo "        Crashes saved : $TOTAL_CRASHES"
+if [ -z "$MINIMAL_ONLY" ]; then
+  echo "          Hangs saved : $TOTAL_HANGS"
+  echo " Cycles without finds : $TOTAL_WCOP"
+fi
+echo "   Time without finds : $TOTAL_LAST_FIND"
 echo
 
 exit 0

benchmark/COMPARISON.md

@@ -0,0 +1,13 @@
+|CPU                                                 | MHz   | threads | singlecore | multicore | afl-*-config |
+|----------------------------------------------------|-------|---------|------------|-----------|--------------|
+|Raspberry Pi 5                                      | 2400  | 4       | 25786      | 101114    | both         |
+|AMD EPYC 7282 16-Core Processor                     | 3194  | 32      | 87199      | 769001    | both         |
+|AMD Ryzen 5 PRO 4650G with Radeon Graphics          | 3700  | 12      | 95356      | 704840    | both         |
+|Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz            | 4995  | 16      | 120064     | 1168943   | both         |
+|12th Gen Intel(R) Core(TM) i7-1270P                 | 4761  | 16      | 149778     | 641219    | both         |
+|AMD Ryzen 9 5950X 16-Core Processor                 | 4792  | 32      | 161690     | 2339763   | both         |
+|Apple Mac Studio M2 Ultra 2023, Linux VM guest      | 3500  | 16      | 163570     | 1157465   | both         |
+|AMD Ryzen 9 6900HS with Radeon Graphics             | 4676  | 16      | 62860      | 614404    | system       |
+|AMD Ryzen 9 6900HS with Radeon Graphics             | 4745  | 16      | 135501     | 991133    | both         |
+|AMD Ryzen 9 7950X3D 16-Core Processor               | 5400  | 32      | 71566      | 1566279   | system       |
+|AMD Ryzen 9 7950X3D 16-Core Processor               | 5478  | 32      | 161960     | 2173959   | both         |

benchmark/README.md

@@ -0,0 +1,59 @@
+# American Fuzzy Lop plus plus (AFL++)
+
+## benchmarking
+
+This directory contains benchmarking tools that allow you to compare one machine
+with another in terms of raw ability to execute a fuzzing target repeatedly.
+
+To achieve this, we use a sample program ("test-instr.c") where each path is
+equally likely, supply it a single seed, and tell AFL to exit after one run of
+deterministic mutations against that seed.
+
+**Note that this is not a real-world scenario!**
+Because the target does basically nothing this is rather a stress test on
+Kernel I/O / context switching.
+For this reason you will not see a difference if you run the multicore test
+with 20 or 40 threads - or even see the performance decline the more threads
+(`-f` parameter) you use. In a real-world scenario you can expect to gain
+exec/s until 40-60 threads (if you have that many available on your CPU).
+
+Usage example:
+
+```
+cd aflplusplus/benchmark
+python3 benchmark.py
+ [*] Ready, starting benchmark...
+ [*] Compiling the test-instr-persist-shmem fuzzing harness for the benchmark to use.
+ [*] singlecore test-instr-persist-shmem run 1 of 2, execs/s: 124883.62
+ [*] singlecore test-instr-persist-shmem run 2 of 2, execs/s: 126704.93
+ [*] Average execs/sec for this test across all runs was: 125794.28
+ [*] Using 16 fuzzers for multicore fuzzing (use --fuzzers to override).
+ [*] multicore test-instr-persist-shmem run 1 of 2, execs/s: 1179822.66
+ [*] multicore test-instr-persist-shmem run 2 of 2, execs/s: 1175584.09
+ [*] Average execs/sec for this test across all runs was: 1177703.38
+ [*] Results have been written to the benchmark-results.jsonl file.
+ [*] Results have been written to the COMPARISON.md file.
+```
+
+By default, the script will use a number of parallel fuzzers equal to your
+available CPUs/threads (change with `--fuzzers`), and will perform each test
+three times and average the result (change with `--runs`).
+
+The script will use multicore fuzzing instead of singlecore by default (change
+with `--mode singlecore`) and use a persistent-mode shared memory harness for
+optimal speed (change with `--target test-instr`).
+
+Feel free to submit the resulting line for your CPU added to the COMPARISON.md
+and benchmark-results.jsonl files back to AFL++ in a pull request.
+
+Each run writes results to [benchmark-results.jsonl](benchmark-results.jsonl)
+in [JSON Lines](https://jsonlines.org/) format, ready to be pulled in to other
+tools such as [jq -cs](https://jqlang.github.io/jq/) or
+[pandas](https://pandas.pydata.org/) for analysis.
+
+## Data analysis
+
+There is sample data in [benchmark-results.jsonl](benchmark-results.jsonl), and
+a Jupyter notebook for exploring the results and suggesting their meaning at
+[benchmark.ipynb](benchmark.ipynb).
+

benchmark/benchmark-results.jsonl

@@ -0,0 +1,424 @@
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4788.77, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr": {"singlecore": {"execs_per_sec": 9845.64, "execs_total": 98545, "fuzzers_used": 1}}}}
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+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3599.769, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 463235.15, "execs_total": 4635628, "fuzzers_used": 180}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3330.854, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 464366.11, "execs_total": 4646649, "fuzzers_used": 181}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3599.585, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 469453.17, "execs_total": 4697909, "fuzzers_used": 182}}}}
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+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3583.539, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 472179.98, "execs_total": 4724913, "fuzzers_used": 185}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3598.57, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 465528.62, "execs_total": 4658439, "fuzzers_used": 186}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3587.126, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 476194.69, "execs_total": 4765385, "fuzzers_used": 187}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3423.033, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 475886.86, "execs_total": 4762069, "fuzzers_used": 188}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3599.32, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 473599.91, "execs_total": 4739128, "fuzzers_used": 189}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3597.599, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 476949.52, "execs_total": 4772500, "fuzzers_used": 190}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3437.101, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 474259.76, "execs_total": 4745505, "fuzzers_used": 191}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "AWS EC2 r6a.48xlarge spot instance", "compiler": "clang version 15.0.7 (Amazon Linux 15.0.7-3.amzn2023.0.1)", "target_arch": "x86_64-amazon-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3599.17, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 479848.23, "execs_total": 4801111, "fuzzers_used": 192}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "", "compiler": "Debian clang version 17.0.4 (++20231031083102+309d55140c46-1~exp1~20231031083155.63)", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4761.063, "cpu_model": "12th Gen Intel(R) Core(TM) i7-1270P", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 641219.02, "execs_total": 19251242, "fuzzers_used": 16}, "singlecore": {"execs_per_sec": 149778.22, "execs_total": 4493796, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "", "compiler": "Ubuntu clang version 17.0.2 (++20231003073128+b2417f51dbbd-1~exp1~20231003073233.51)", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3193.942, "cpu_model": "AMD EPYC 7282 16-Core Processor", "cpu_threads": 64}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 769000.8, "execs_total": 23084516, "fuzzers_used": 32}, "singlecore": {"execs_per_sec": 87198.85, "execs_total": 2616227, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.08a", "comment": "", "compiler": "Ubuntu clang version 14.0.0-1ubuntu1.1", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3700.0, "cpu_model": "AMD Ryzen 5 PRO 4650G with Radeon Graphics", "cpu_threads": 12}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 704840.16, "execs_total": 21163992, "fuzzers_used": 12}, "singlecore": {"execs_per_sec": 95356.14, "execs_total": 2862114, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "", "compiler": "Debian clang version 14.0.6", "target_arch": "aarch64-unknown-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 2400.0, "cpu_model": "Raspberry Pi 5", "cpu_threads": 4}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 101114.23, "execs_total": 3036637, "fuzzers_used": 4}, "singlecore": {"execs_per_sec": 25786.11, "execs_total": 774460, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.07a", "comment": "", "compiler": "Debian clang version 17.0.0 (++20230417071830+ae77aceba5ad-1~exp1~20230417071935.630)", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4792.073, "cpu_model": "AMD Ryzen 9 5950X 16-Core Processor", "cpu_threads": 32}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 2339762.91, "execs_total": 70253164, "fuzzers_used": 32}, "singlecore": {"execs_per_sec": 161690.07, "execs_total": 4851838, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": false, "afl_system_config": true, "afl_version": "++4.10c", "comment": "", "compiler": "clang version 17.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4675.949, "cpu_model": "AMD Ryzen 9 6900HS with Radeon Graphics", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 614403.91, "execs_total": 18435083, "fuzzers_used": 16}, "singlecore": {"execs_per_sec": 62859.9, "execs_total": 1886111, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.10c", "comment": "", "compiler": "clang version 17.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4744.522, "cpu_model": "AMD Ryzen 9 6900HS with Radeon Graphics", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 991132.96, "execs_total": 29737588, "fuzzers_used": 16}, "singlecore": {"execs_per_sec": 135501.07, "execs_total": 4066116, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": false, "afl_system_config": true, "afl_version": "++4.10c", "comment": "", "compiler": "Ubuntu clang version 14.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 5399.822, "cpu_model": "AMD Ryzen 9 7950X3D 16-Core Processor", "cpu_threads": 32}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1566279.42, "execs_total": 46994452, "fuzzers_used": 32}, "singlecore": {"execs_per_sec": 71565.56, "execs_total": 2147396, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.10c", "comment": "", "compiler": "clang version 17.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 5478.258, "cpu_model": "AMD Ryzen 9 7950X3D 16-Core Processor", "cpu_threads": 32}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 2173959.15, "execs_total": 65229513, "fuzzers_used": 32}, "singlecore": {"execs_per_sec": 161960.29, "execs_total": 4859457, "fuzzers_used": 1}}}}

benchmark/benchmark.py

@@ -0,0 +1,281 @@
+#!/usr/bin/env python3
+# Part of the aflplusplus project, requires Python 3.8+.
+# Author: Chris Ball <chris@printf.net>, ported from Marc "van Hauser" Heuse's "benchmark.sh".
+import argparse, asyncio, json, multiprocessing, os, platform, re, shutil, sys
+from dataclasses import asdict, dataclass
+from decimal import Decimal
+from enum import Enum, auto
+from pathlib import Path
+from typing import Dict, List, Optional, Tuple
+
+blue   = lambda text: f"\033[1;94m{text}\033[0m"; gray = lambda text: f"\033[1;90m{text}\033[0m"
+green  = lambda text: f"\033[0;32m{text}\033[0m"; red  = lambda text: f"\033[0;31m{text}\033[0m"
+yellow = lambda text: f"\033[0;33m{text}\033[0m"
+
+class Mode(Enum):
+    multicore  = auto()
+    singlecore = auto()
+
+@dataclass
+class Target:
+    source: Path
+    binary: Path
+
+@dataclass
+class Run:
+    execs_per_sec: float
+    execs_total: float
+    fuzzers_used: int
+
+@dataclass
+class Config:
+    afl_persistent_config: bool
+    afl_system_config: bool
+    afl_version: Optional[str]
+    comment: str
+    compiler: str
+    target_arch: str
+
+@dataclass
+class Hardware:
+    cpu_fastest_core_mhz: float
+    cpu_model: str
+    cpu_threads: int
+
+@dataclass
+class Results:
+    config: Optional[Config]
+    hardware: Optional[Hardware]
+    targets: Dict[str, Dict[str, Optional[Run]]]
+
+all_modes = [Mode.singlecore, Mode.multicore]
+all_targets = [
+    Target(source=Path("../utils/persistent_mode/test-instr.c").resolve(), binary=Path("test-instr-persist-shmem")),
+    Target(source=Path("../test-instr.c").resolve(), binary=Path("test-instr"))
+]
+modes = [mode.name for mode in all_modes]
+targets = [str(target.binary) for target in all_targets]
+cpu_count = multiprocessing.cpu_count()
+env_vars = {
+    "AFL_DISABLE_TRIM": "1", "AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES": "1", "AFL_FAST_CAL": "1",
+    "AFL_NO_UI": "1", "AFL_TRY_AFFINITY": "1", "PATH": f'{str(Path("../").resolve())}:{os.environ["PATH"]}',
+}
+
+parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+parser.add_argument("-b", "--basedir", help="directory to use for temp files", type=str, default="/tmp/aflpp-benchmark")
+parser.add_argument("-d", "--debug", help="show verbose debugging output", action="store_true")
+parser.add_argument("-r", "--runs", help="how many runs to average results over", type=int, default=3)
+parser.add_argument("-f", "--fuzzers", help="how many afl-fuzz workers to use", type=int, default=cpu_count)
+parser.add_argument("-m", "--mode", help="pick modes", action="append", default=modes, choices=modes)
+parser.add_argument("-c", "--comment", help="add a comment about your setup", type=str, default="")
+parser.add_argument("--cpu", help="override the detected CPU model name", type=str, default="")
+parser.add_argument("--mhz", help="override the detected CPU MHz", type=str, default="")
+parser.add_argument(
+    "-t", "--target", help="pick targets", action="append", default=["test-instr-persist-shmem"], choices=targets
+)
+args = parser.parse_args()
+# Really unsatisfying argparse behavior: we want a default and to allow multiple choices, but if there's a manual choice
+# it should override the default.  Seems like we have to remove the default to get that and have correct help text?
+if len(args.target) > 1:
+    args.target = args.target[1:]
+if len(args.mode) > 2:
+    args.mode = args.mode[2:]
+
+chosen_modes = [mode for mode in all_modes if mode.name in args.mode]
+chosen_targets = [target for target in all_targets if str(target.binary) in args.target]
+results = Results(config=None, hardware=None, targets={
+    str(t.binary): {m.name: None for m in chosen_modes} for t in chosen_targets}
+)
+debug = lambda text: args.debug and print(blue(text))
+
+async def clean_up_tempfiles() -> None:
+    shutil.rmtree(f"{args.basedir}/in")
+    for target in chosen_targets:
+        target.binary.unlink()
+        for mode in chosen_modes:
+            shutil.rmtree(f"{args.basedir}/out-{mode.name}-{str(target.binary)}")
+
+async def check_afl_persistent() -> bool:
+    with open("/proc/cmdline", "r") as cmdline:
+        return "mitigations=off" in cmdline.read().strip().split(" ")
+
+async def check_afl_system() -> bool:
+    sysctl = next((s for s in ["sysctl", "/sbin/sysctl"] if shutil.which(s)), None)
+    if sysctl:
+        (returncode, stdout, _) = await run_command([sysctl, "kernel.randomize_va_space"])
+        return returncode == 0 and stdout.decode().rstrip().split(" = ")[1] == "0"
+    return False
+
+async def prep_env() -> None:
+    Path(f"{args.basedir}/in").mkdir(exist_ok=True, parents=True)
+    with open(f"{args.basedir}/in/in.txt", "wb") as seed:
+        seed.write(b"\x00" * 10240)
+
+async def compile_target(source: Path, binary: Path) -> None:
+    print(f" [*] Compiling the {binary} fuzzing harness for the benchmark to use.")
+    (returncode, stdout, stderr) = await run_command(
+        [str(Path("../afl-clang-lto").resolve()), "-o", str(Path(binary.resolve())), str(Path(source).resolve())]
+    )
+    if returncode == 0:
+        return
+    print(yellow(f" [*] afl-clang-lto was unable to compile; falling back to afl-cc."))
+    (returncode, stdout, stderr) = await run_command(
+        [str(Path("../afl-cc").resolve()), "-o", str(Path(binary.resolve())), str(Path(source).resolve())]
+    )
+    if returncode != 0:
+        sys.exit(red(f" [*] Error: afl-cc is unable to compile: {stderr.decode()} {stdout.decode()}"))
+
+async def run_command(cmd: List[str]) -> Tuple[Optional[int], bytes, bytes]:
+    debug(f"Launching command: {cmd} with env {env_vars}")
+    p = await asyncio.create_subprocess_exec(
+        *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE, env=env_vars
+    )
+    stdout, stderr = await p.communicate()
+    debug(f"Output: {stdout.decode()} {stderr.decode()}")
+    return (p.returncode, stdout, stderr)
+
+async def check_deps() -> None:
+    if not (plat := platform.system()) == "Linux": sys.exit(red(f" [*] {plat} is not supported by this script yet."))
+    if not os.access(Path("../afl-fuzz").resolve(), os.X_OK) and os.access(Path("../afl-cc").resolve(), os.X_OK) and (
+        os.path.exists(Path("../SanitizerCoveragePCGUARD.so").resolve())):
+        sys.exit(red(" [*] Compile AFL++: we need afl-fuzz, afl-clang-fast and SanitizerCoveragePCGUARD.so built."))
+
+    (returncode, stdout, stderr) = await run_command([str(Path("../afl-cc").resolve()), "-v"])
+    if returncode != 0:
+        sys.exit(red(f" [*] Error: afl-cc -v returned: {stderr.decode()} {stdout.decode()}"))
+    compiler = ""
+    target_arch = ""
+    for line in stderr.decode().split("\n"):
+        if "clang version" in line:
+            compiler = line
+        elif m := re.match(r"^Target: (.*)", line):
+            target_arch = m.group(1)
+
+    # Pick some sample settings from afl-{persistent,system}-config to try to see whether they were run.
+    afl_pc = await check_afl_persistent()
+    afl_sc = await check_afl_system()
+    if not afl_pc:
+        print(yellow(f" [*] afl-persistent-config did not run; run it to improve performance (and decrease security)."))
+    if not afl_sc:
+        print(yellow(f" [*] afl-system-config did not run; run it to improve performance (and decrease security)."))
+    results.config = Config(afl_persistent_config=afl_pc, afl_system_config=afl_sc, afl_version="",
+                            comment=args.comment, compiler=compiler, target_arch=target_arch)
+
+async def colon_values(filename: str, searchKey: str) -> List[str]:
+    """Return a colon-separated value given a key in a file, e.g. 'cpu MHz         : 4976.109')"""
+    with open(filename, "r") as fh:
+        kv_pairs = (line.split(": ", 1) for line in fh if ": " in line)
+        v_list = [v.rstrip() for k, v in kv_pairs if k.rstrip() == searchKey]
+        return v_list
+
+async def describe_afl_config() -> str:
+   if results.config is None:
+       return "unknown"
+   elif results.config.afl_persistent_config and results.config.afl_system_config:
+       return "both"
+   elif results.config.afl_persistent_config:
+       return "persistent"
+   elif results.config.afl_system_config:
+       return "system"
+   else:
+       return "none"
+
+async def save_benchmark_results() -> None:
+    """Append a single row to the benchmark results in JSON Lines format (which is simple to write and diff)."""
+    with open("benchmark-results.jsonl", "a") as jsonfile:
+        json.dump(asdict(results), jsonfile, sort_keys=True)
+        jsonfile.write("\n")
+        print(blue(f" [*] Results have been written to the {jsonfile.name} file."))
+    with open("COMPARISON.md", "r+") as comparisonfile:
+        described_config = await describe_afl_config()
+        aflconfig = described_config.ljust(12)
+        if results.hardware is None:
+            return
+        cpu_model = results.hardware.cpu_model.ljust(51)
+        if cpu_model in comparisonfile.read():
+            print(blue(f" [*] Results have not been written to the COMPARISON.md file; this CPU is already present."))
+            return
+        cpu_mhz = str(round(results.hardware.cpu_fastest_core_mhz)).ljust(5)
+        if not "test-instr-persist-shmem" in results.targets or \
+           not "multicore" in results.targets["test-instr-persist-shmem"] or \
+           not "singlecore" in results.targets["test-instr-persist-shmem"] or \
+           results.targets["test-instr-persist-shmem"]["singlecore"] is None or \
+           results.targets["test-instr-persist-shmem"]["multicore"] is None:
+            return
+        single = str(round(results.targets["test-instr-persist-shmem"]["singlecore"].execs_per_sec)).ljust(10)
+        multi = str(round(results.targets["test-instr-persist-shmem"]["multicore"].execs_per_sec)).ljust(9)
+        cores = str(args.fuzzers).ljust(7)
+        comparisonfile.write(f"|{cpu_model} | {cpu_mhz} | {cores} | {single} | {multi} | {aflconfig} |\n")
+        print(blue(f" [*] Results have been written to the COMPARISON.md file."))
+    with open("COMPARISON.md", "r") as comparisonfile:
+        print(comparisonfile.read())
+
+
+async def main() -> None:
+    try:
+        await clean_up_tempfiles()
+    except FileNotFoundError:
+        pass
+    await check_deps()
+    if args.mhz:
+        cpu_mhz = float(args.mhz)
+    else:
+        cpu_mhz_str = await colon_values("/proc/cpuinfo", "cpu MHz")
+        if len(cpu_mhz_str) == 0:
+            cpu_mhz_str.append("0")
+        cpu_mhz = max([float(c) for c in cpu_mhz_str]) # use the fastest CPU MHz for now
+    if args.cpu:
+        cpu_model = [args.cpu]
+    else:
+        cpu_model = await colon_values("/proc/cpuinfo", "model name") or [""]
+    results.hardware = Hardware(cpu_fastest_core_mhz=cpu_mhz, cpu_model=cpu_model[0], cpu_threads=cpu_count)
+    await prep_env()
+    print(f" [*] Ready, starting benchmark...")
+    for target in chosen_targets:
+        await compile_target(target.source, target.binary)
+        binary = str(target.binary)
+        for mode in chosen_modes:
+            if mode == Mode.multicore:
+                print(blue(f" [*] Using {args.fuzzers} fuzzers for multicore fuzzing "), end="")
+                print(blue("(use --fuzzers to override)." if args.fuzzers == cpu_count else f"(the default is {cpu_count})"))
+            execs_per_sec, execs_total = ([] for _ in range(2))
+            for run_idx in range(0, args.runs):
+                print(gray(f" [*] {mode.name} {binary} run {run_idx+1} of {args.runs}, execs/s: "), end="", flush=True)
+                fuzzers = range(0, args.fuzzers if mode == Mode.multicore else 1)
+                outdir = f"{args.basedir}/out-{mode.name}-{binary}"
+                cmds = []
+                for fuzzer_idx, afl in enumerate(fuzzers):
+                    name = ["-o", outdir, "-M" if fuzzer_idx == 0 else "-S", str(afl)]
+                    cmds.append(["afl-fuzz", "-i", f"{args.basedir}/in"] + name + ["-s", "123", "-V10", "-D", f"./{binary}"])
+                # Prepare the afl-fuzz tasks, and then block while waiting for them to finish.
+                fuzztasks = [run_command(cmds[cpu]) for cpu in fuzzers]
+                await asyncio.gather(*fuzztasks)
+                afl_versions = await colon_values(f"{outdir}/0/fuzzer_stats", "afl_version")
+                if results.config:
+                    results.config.afl_version = afl_versions[0]
+                # Our score is the sum of all execs_per_sec entries in fuzzer_stats files for the run.
+                sectasks = [colon_values(f"{outdir}/{afl}/fuzzer_stats", "execs_per_sec") for afl in fuzzers]
+                all_execs_per_sec = await asyncio.gather(*sectasks)
+                execs = sum([Decimal(count[0]) for count in all_execs_per_sec])
+                print(green(execs))
+                execs_per_sec.append(execs)
+                # Also gather execs_total and total_run_time for this run.
+                exectasks = [colon_values(f"{outdir}/{afl}/fuzzer_stats", "execs_done") for afl in fuzzers]
+                all_execs_total = await asyncio.gather(*exectasks)
+                execs_total.append(sum([Decimal(count[0]) for count in all_execs_total]))
+
+            # (Using float() because Decimal() is not JSON-serializable.)
+            avg_afl_execs_per_sec = round(Decimal(sum(execs_per_sec) / len(execs_per_sec)), 2)
+            afl_execs_total = int(sum([Decimal(execs) for execs in execs_total]))
+            run = Run(execs_per_sec=float(avg_afl_execs_per_sec), execs_total=afl_execs_total, fuzzers_used=len(fuzzers))
+            results.targets[binary][mode.name] = run
+            print(f" [*] Average execs/sec for this test across all runs was: {green(avg_afl_execs_per_sec)}")
+            if (((max(execs_per_sec) - min(execs_per_sec)) / avg_afl_execs_per_sec) * 100) > 15:
+                print(yellow(" [*] The difference between your slowest and fastest runs was >15%, maybe try again?"))
+
+    await clean_up_tempfiles()
+    await save_benchmark_results()
+
+if __name__ == "__main__":
+    asyncio.run(main())
+

coresight_mode/GNUmakefile

@@ -54,7 +54,7 @@ $(GLIBC_LDSO): | $(GLIBC_NAME).tar.xz
 	  $(MAKE) install
 
 $(GLIBC_NAME).tar.xz:
-	wget -O $@ $(GLIBC_URL_BASE)/$@
+	wget -qO $@ $(GLIBC_URL_BASE)/$@
 
 clean:
 	$(MAKE) -C $(CS_TRACE) clean

custom_mutators/README.md

@@ -11,19 +11,6 @@ The `./examples` folder contains examples for custom mutators in python and C.
 
 In `./rust`, you will find rust bindings, including a simple example in `./rust/example` and an example for structured fuzzing, based on lain, in`./rust/example_lain`.
 
-## The AFL++ Grammar Mutator
-
-If you use git to clone AFL++, then the following will incorporate our
-excellent grammar custom mutator:
-
-```sh
-git submodule update --init
-```
-
-Read the README in the [Grammar-Mutator] repository on how to use it.
-
-[Grammar-Mutator]: https://github.com/AFLplusplus/Grammar-Mutator
-
 ## Production-Ready Custom Mutators
 
 This directory holds ready to use custom mutators.
@@ -37,6 +24,42 @@ and add `AFL_CUSTOM_MUTATOR_ONLY=1` if you only want to use the custom mutator.
 
 Multiple custom mutators can be used by separating their paths with `:` in the environment variable.
 
+### The AFL++ grammar agnostic grammar mutator
+
+In `./autotokens` you find a token-level fuzzer that does not need to know
+anything about the grammar of an input as long as it is in ascii and allows
+whitespace.
+It is very fast and effective.
+
+If you are looking for an example of how to effectively create a custom
+mutator take a look at this one.
+
+### The AFL++ Grammar Mutator
+
+If you use git to clone AFL++, then the following will incorporate our
+excellent grammar custom mutator:
+
+```sh
+git submodule update --init
+```
+
+Read the README in the [Grammar-Mutator] repository on how to use it.
+
+[Grammar-Mutator]: https://github.com/AFLplusplus/Grammar-Mutator
+
+Note that this custom mutator is not very good though!
+
+### Other Mutators
+
+atnwalk and gramatron are grammar custom mutators. Example grammars are
+provided.
+
+honggfuzz, libfuzzer and  libafl are partial implementations based on the
+mutator implementations of the respective fuzzers. 
+More for playing than serious usage.
+
+radamsa is slow and not very good.
+
 ## 3rd Party Custom Mutators
 
 ### Superion Mutators
@@ -47,14 +70,17 @@ requires cmake (among other things):
 
 ### libprotobuf Mutators
 
-There are two WIP protobuf projects, that require work to be working though:
+There are three WIP protobuf projects, that require work to be working though:
+
+ASN.1 example:
+[https://github.com/airbus-seclab/AFLplusplus-blogpost/tree/main/src/mutator](https://github.com/airbus-seclab/AFLplusplus-blogpost/tree/main/src/mutator)
 
 transforms protobuf raw:
-https://github.com/bruce30262/libprotobuf-mutator_fuzzing_learning/tree/master/4_libprotobuf_aflpp_custom_mutator
+[https://github.com/bruce30262/libprotobuf-mutator_fuzzing_learning/tree/master/4_libprotobuf_aflpp_custom_mutator](https://github.com/bruce30262/libprotobuf-mutator_fuzzing_learning/tree/master/4_libprotobuf_aflpp_custom_mutator)
 
 has a transform function you need to fill for your protobuf format, however
 needs to be ported to the updated AFL++ custom mutator API (not much work):
-https://github.com/thebabush/afl-libprotobuf-mutator
+[https://github.com/thebabush/afl-libprotobuf-mutator](https://github.com/thebabush/afl-libprotobuf-mutator)
 
 same as above but is for current AFL++:
-https://github.com/P1umer/AFLplusplus-protobuf-mutator
+[https://github.com/P1umer/AFLplusplus-protobuf-mutator](https://github.com/P1umer/AFLplusplus-protobuf-mutator)

custom_mutators/aflpp/Makefile

@@ -0,0 +1,10 @@
+
+CFLAGS = -O3 -funroll-loops -fPIC -Wl,-Bsymbolic
+
+all: aflpp-mutator.so
+
+aflpp-mutator.so:	aflpp.c
+	$(CC) $(CFLAGS) -I../../include -I. -shared -o aflpp-mutator.so aflpp.c ../../src/afl-performance.c
+
+clean:
+	rm -f *.o *~ *.so core

custom_mutators/aflpp/README.md

@@ -0,0 +1,8 @@
+# custum mutator: AFL++
+
+this is the AFL++ havoc mutator as a custom mutator module for AFL++.
+
+just type `make` to build
+
+```AFL_CUSTOM_MUTATOR_LIBRARY=custom_mutators/aflpp/aflpp-mutator.so afl-fuzz ...```
+

custom_mutators/aflpp/aflpp.c

@@ -0,0 +1,90 @@
+#include "afl-fuzz.h"
+#include "afl-mutations.h"
+
+typedef struct my_mutator {
+
+  afl_state_t *afl;
+  u8          *buf;
+  u32          buf_size;
+
+} my_mutator_t;
+
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
+
+  (void)seed;
+
+  my_mutator_t *data = calloc(1, sizeof(my_mutator_t));
+  if (!data) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  }
+
+  if ((data->buf = malloc(MAX_FILE)) == NULL) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  } else {
+
+    data->buf_size = MAX_FILE;
+
+  }
+
+  data->afl = afl;
+
+  return data;
+
+}
+
+/* here we run the AFL++ mutator, which is the best! */
+
+size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
+                       u8 **out_buf, uint8_t *add_buf, size_t add_buf_size,
+                       size_t max_size) {
+
+  if (max_size > data->buf_size) {
+
+    u8 *ptr = realloc(data->buf, max_size);
+
+    if (ptr) {
+
+      return 0;
+
+    } else {
+
+      data->buf = ptr;
+      data->buf_size = max_size;
+
+    }
+
+  }
+
+  u32 havoc_steps = 1 + rand_below(data->afl, 16);
+
+  /* set everything up, costly ... :( */
+  memcpy(data->buf, buf, buf_size);
+
+  /* the mutation */
+  u32 out_buf_len = afl_mutate(data->afl, data->buf, buf_size, havoc_steps,
+                               false, true, add_buf, add_buf_size, max_size);
+
+  /* return size of mutated data */
+  *out_buf = data->buf;
+  return out_buf_len;
+
+}
+
+/**
+ * Deinitialize everything
+ *
+ * @param data The data ptr from afl_custom_init
+ */
+void afl_custom_deinit(my_mutator_t *data) {
+
+  free(data->buf);
+  free(data);
+
+}
+

custom_mutators/aflpp/standalone/Makefile

@@ -0,0 +1,10 @@
+
+CFLAGS = -O3 -funroll-loops -fPIC
+
+all: aflpp-standalone
+
+aflpp-standalone:	aflpp-standalone.c
+	$(CC) $(CFLAGS) -I../../../include -I. -o aflpp-standalone aflpp-standalone.c ../../../src/afl-performance.c
+
+clean:
+	rm -f *.o *~ aflpp-standalone core

custom_mutators/aflpp/standalone/README.md

@@ -0,0 +1,10 @@
+# AFL++ standalone mutator
+
+this is the AFL++ havoc mutator as a standalone mutator
+
+just type `make` to build.
+
+```
+aflpp-standalone inputfile outputfile [splicefile]
+```
+

custom_mutators/aflpp/standalone/aflpp-standalone.c

@@ -0,0 +1,163 @@
+#include "afl-fuzz.h"
+#include "afl-mutations.h"
+
+typedef struct my_mutator {
+
+  afl_state_t *afl;
+  u8          *buf;
+  u32          buf_size;
+
+} my_mutator_t;
+
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
+
+  (void)seed;
+
+  my_mutator_t *data = calloc(1, sizeof(my_mutator_t));
+  if (!data) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  }
+
+  if ((data->buf = malloc(1024*1024)) == NULL) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  } else {
+
+    data->buf_size = 1024*1024;
+
+  }
+
+  /* fake AFL++ state */
+  data->afl = calloc(1, sizeof(afl_state_t));
+  data->afl->queue_cycle = 1;
+  data->afl->fsrv.dev_urandom_fd = open("/dev/urandom", O_RDONLY);
+  if (data->afl->fsrv.dev_urandom_fd < 0) { PFATAL("Unable to open /dev/urandom"); }
+  rand_set_seed(data->afl, getpid());
+
+  return data;
+
+}
+
+/* here we run the AFL++ mutator, which is the best! */
+
+size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
+                       u8 **out_buf, uint8_t *add_buf, size_t add_buf_size,
+                       size_t max_size) {
+
+  if (max_size > data->buf_size) {
+
+    u8 *ptr = realloc(data->buf, max_size);
+
+    if (ptr) {
+
+      return 0;
+
+    } else {
+
+      data->buf = ptr;
+      data->buf_size = max_size;
+
+    }
+
+  }
+
+  u32 havoc_steps = 1 + rand_below(data->afl, 16);
+
+  /* set everything up, costly ... :( */
+  memcpy(data->buf, buf, buf_size);
+
+  /* the mutation */
+  u32 out_buf_len = afl_mutate(data->afl, data->buf, buf_size, havoc_steps,
+                               false, true, add_buf, add_buf_size, max_size);
+
+  /* return size of mutated data */
+  *out_buf = data->buf;
+  return out_buf_len;
+
+}
+
+int main(int argc, char *argv[]) {
+
+  if (argc > 1 && strncmp(argv[1], "-h", 2) == 0) {
+    printf("Syntax: %s [-v] [inputfile [outputfile [splicefile]]]\n\n", argv[0]);
+    printf("Reads a testcase from stdin when no input file (or '-') is specified,\n");
+    printf("mutates according to AFL++'s mutation engine, and write to stdout when '-' or\n");
+    printf("no output filename is given. As an optional third parameter you can give a file\n");
+    printf("for splicing. Maximum input and output length is 1MB.\n");
+    printf("The -v verbose option prints debug output to stderr.\n");
+    return 0;
+  }
+
+  FILE *in = stdin, *out = stdout, *splice = NULL;
+  unsigned char *inbuf = malloc(1024 * 1024), *outbuf, *splicebuf = NULL;
+  int verbose = 0, splicelen = 0;
+
+  if (argc > 1 && strcmp(argv[1], "-v") == 0) {
+    verbose = 1;
+    argc--;
+    argv++;
+    fprintf(stderr, "Verbose active\n");
+  }
+
+  my_mutator_t *data = afl_custom_init(NULL, 0);
+
+  if (argc > 1 && strcmp(argv[1], "-") != 0) {
+    if ((in = fopen(argv[1], "r")) == NULL) {
+      perror(argv[1]);
+      return -1;
+    }
+    if (verbose) fprintf(stderr, "Input: %s\n", argv[1]);
+  }
+
+  size_t inlen = fread(inbuf, 1, 1024*1024, in);
+  
+  if (!inlen) {
+    fprintf(stderr, "Error: empty file %s\n", argv[1] ? argv[1] : "stdin");
+    return -1;
+  }
+
+  if (argc > 2 && strcmp(argv[2], "-") != 0) {
+    if ((out = fopen(argv[2], "w")) == NULL) {
+      perror(argv[2]);
+      return -1;
+    }
+    if (verbose) fprintf(stderr, "Output: %s\n", argv[2]);
+  }
+
+  if (argc > 3) {
+    if ((splice = fopen(argv[3], "r")) == NULL) {
+      perror(argv[3]);
+      return -1;
+    }
+    if (verbose) fprintf(stderr, "Splice: %s\n", argv[3]);
+    splicebuf = malloc(1024*1024);
+    size_t splicelen = fread(splicebuf, 1, 1024*1024, splice);
+    if (!splicelen) {
+      fprintf(stderr, "Error: empty file %s\n", argv[3]);
+      return -1;
+    }
+    if (verbose) fprintf(stderr, "Mutation splice length: %zu\n", splicelen);
+  }
+
+  if (verbose) fprintf(stderr, "Mutation input length: %zu\n", inlen);
+  unsigned int outlen = afl_custom_fuzz(data, inbuf, inlen, &outbuf, splicebuf, splicelen, 1024*1024);
+
+  if (outlen == 0 || !outbuf) {
+    fprintf(stderr, "Error: no mutation data returned.\n");
+    return -1;
+  }
+
+  if (verbose) fprintf(stderr, "Mutation output length: %u\n", outlen);
+
+  if (fwrite(outbuf, 1, outlen, out) != outlen) {
+    fprintf(stderr, "Warning: incomplete write.\n");
+    return -1;
+  }
+  
+  return 0;
+}

custom_mutators/aflpp_tritondse/README.md

@@ -0,0 +1,22 @@
+# An AFL++ custom mutator using TritonDSE
+
+## Installing the requirements
+
+`pip3 install tritondse`
+
+## How to run with an example
+
+```
+../../afl-cc -o ../../test-instr ../../test-instr.c
+mkdir -p in
+echo aaaa > in/in
+AFL_DISABLE_TRIM=1 AFL_CUSTOM_MUTATOR_ONLY=1 AFL_SYNC_TIME=1 AFL_PYTHON_MODULE=aflpp_tritondse PYTHONPATH=. ../../afl-fuzz -i in -o out -- ../../test-instr
+```
+
+Note that this custom mutator works differently, new finds are synced
+after 10-60 seconds to the fuzzing instance. This is necessary because only
+C/C++ custom mutators have access to the internal AFL++ state.
+
+Note that you should run first with `AFL_DEBUG` for 5-10 minutes and see if
+all important libraries and syscalls are hooked (look at `WARNING` and `CRITICAL`
+output during the run, best use with `AFL_NO_UI=1`)

custom_mutators/aflpp_tritondse/aflpp_tritondse.py

@@ -0,0 +1,220 @@
+import sys
+import os
+import logging
+import hashlib
+
+from tritondse import CleLoader
+from tritondse import CompositeData
+from tritondse import Config
+from tritondse import CoverageStrategy
+from tritondse import ProcessState
+from tritondse import Program
+from tritondse import Seed
+from tritondse import SeedFormat
+from tritondse import SymbolicExecutor
+from tritondse import SymbolicExplorator
+
+is_debug = False
+out_path = ""
+input_file = None
+prog = None
+config = None
+dse = None
+cycle = 0
+count = 0
+finding = 0
+hashes = set()
+format = SeedFormat.RAW
+
+def pre_exec_hook(se: SymbolicExecutor, state: ProcessState):
+    global count
+    global hashes
+    global finding
+    if se.seed.hash not in hashes:
+        hashes.add(se.seed.hash)
+        finding = 1
+        filename = out_path + "/id:" + f"{count:06}" + "," + se.seed.hash
+        if not os.path.exists(filename):
+            if is_debug:
+                print('Creating queue input ' + filename)
+            with open(filename, 'wb') as file:
+                if input_file:
+                    file.write(se.seed.content.files[input_file])
+                else:
+                    file.write(se.seed.content)
+                count += 1
+    #if input_file:
+    #    if is_debug:
+    #        print('Writing to ' + input_file + ' the content: ' + str(se.seed.content))
+    #    with open(input_file, 'wb') as file:
+    #        file.write(se.seed.content)
+
+
+#def rtn_open(se: SymbolicExecutor, pstate: ProcessState, pc):
+#    """
+#    The open behavior.
+#    """
+#    logging.debug('open hooked')
+#
+#    # Get arguments
+#    arg0 = pstate.get_argument_value(0)  # const char *pathname
+#    flags = pstate.get_argument_value(1)  # int flags
+#    mode = pstate.get_argument_value(2)  # int mode
+#    arg0s = pstate.memory.read_string(arg0)
+#
+#    # Concretize the whole path name
+#    pstate.concretize_memory_bytes(arg0, len(arg0s)+1)  # Concretize the whole string + \0
+#
+#    # We use flags as concrete value
+#    pstate.concretize_argument(1)
+#
+#    # Use the flags to open the file in the write mode.
+#    mode = ""
+#    if (flags & 0xFF) == 0x00:   # O_RDONLY
+#        mode = "r"
+#    elif (flags & 0xFF) == 0x01: # O_WRONLY
+#        mode = "w"
+#    elif (flags & 0xFF) == 0x02: # O_RDWR
+#        mode = "r+"
+#
+#    if (flags & 0x0100): # O_CREAT
+#        mode += "x"
+#    if (flags & 0x0200): # O_APPEND
+#        mode = "a"  # replace completely value
+#
+#    if se.seed.is_file_defined(arg0s) and "r" in mode:  # input file and opened in reading
+#        logging.info(f"opening an input file: {arg0s}")
+#        # Program is opening an input
+#        data = se.seed.get_file_input(arg0s)
+#        filedesc = pstate.create_file_descriptor(arg0s, io.BytesIO(data))
+#        fd = filedesc.id
+#    else:
+#        # Try to open it as a regular file
+#        try:
+#            fd = open(arg0s, mode)  # use the mode here
+#            filedesc = pstate.create_file_descriptor(arg0s, fd)
+#            fd = filedesc.id
+#        except Exception as e:
+#            logging.debug(f"Failed to open {arg0s} {e}")
+#            fd = pstate.minus_one
+#
+#    pstate.write_register("rax", fd)  # write the return value
+#    pstate.cpu.program_counter = pstate.pop_stack_value()  # pop the return value
+#    se.skip_instruction()  # skip the current instruction so that the engine go straight fetching the next instruction
+
+
+def init(seed):
+    global config
+    global dse
+    global format
+    global input_file
+    global is_debug
+    global out_path
+    global prog
+    # Load the program (LIEF-based program loader).
+    prog = CleLoader(os.environ['AFL_CUSTOM_INFO_PROGRAM'])
+    # Process other configuration environment variables.
+    argv = None
+    try:
+        foo = os.environ['AFL_DEBUG']
+        is_debug = True
+    except KeyError:
+        pass
+    if is_debug:
+        logging.basicConfig(level=logging.WARNING)
+    else:
+        logging.basicConfig(level=logging.CRITICAL)
+    try:
+        foo = os.environ['AFL_CUSTOM_INFO_OUT']
+        out_path = foo + '/../tritondse/queue'
+    except KeyError:
+        pass
+    try:
+        foo = os.environ['AFL_CUSTOM_INFO_PROGRAM_INPUT']
+        input_file = foo
+    except KeyError:
+        pass
+    try:
+        argv_list = os.environ['AFL_CUSTOM_INFO_PROGRAM_ARGV']
+        argv_tmp = [ os.environ['AFL_CUSTOM_INFO_PROGRAM'] ]
+        argv_tmp += argv_list.split()
+        argv = []
+        # now check for @@
+        for item in argv_tmp:
+            if "@@" in item:
+                input_file = out_path + '/../.input'
+                argv.append(input_file)
+            else:
+                argv.append(item)
+    except KeyError:
+        pass
+    # Create the output directory
+    os.makedirs(out_path, exist_ok=True)
+    # Debug
+    if is_debug:
+        print('DEBUG target: ' + os.environ['AFL_CUSTOM_INFO_PROGRAM'])
+        if argv:
+            print('DEBUG argv: ')
+            print(argv)
+        if input_file:
+            print('DEBUG input_file: ' + input_file)
+        print('DEBUG out_path: ' + out_path)
+        print('')
+    if input_file:
+        format = SeedFormat.COMPOSITE
+    # Now set up TritonDSE
+    config = Config(coverage_strategy = CoverageStrategy.PATH,
+    #                debug = is_debug,
+                    pipe_stdout = is_debug,
+                    pipe_stderr = is_debug,
+                    execution_timeout = 1,
+                    program_argv = argv,
+                    smt_timeout= 50,
+                    seed_format = format)
+    # Create an instance of the Symbolic Explorator
+    dse = SymbolicExplorator(config, prog)
+    # Add callbacks.
+    dse.callback_manager.register_pre_execution_callback(pre_exec_hook)
+    #dse.callback_manager.register_function_callback("open", rtn_open)
+
+
+def fuzz(buf, add_buf, max_size):
+    global finding
+    finding = 1
+    while finding == 1:
+      finding = 0
+      dse.step()
+    return b""
+
+
+def queue_new_entry(filename_new_queue, filename_orig_queue):
+    global cycle
+    global dse
+    # Add seed to the worklist.
+    with open(filename_new_queue, "rb") as file:
+        data = file.read()
+    hash = hashlib.md5(data).hexdigest()
+    if hash not in hashes:
+        hashes.add(hash)
+        if is_debug:
+            print("NEW FILE " + filename_new_queue + " hash " + hash + " count " + str(cycle))
+            cycle += 1
+        if input_file:
+            seed = Seed(CompositeData(files={"stdin": b"", # nothing on stdin
+                                  input_file: data}))
+        else:
+            seed = Seed(data)
+        dse.add_input_seed(seed)
+        # Start exploration!
+        #dse.step()
+        #dse.explore()
+    pass
+
+
+# we simulate just doing one single fuzz in the custom mutator
+def fuzz_count(buf):
+    return 1
+
+
+def splice_optout():
+    pass

custom_mutators/atnwalk/Makefile

@@ -0,0 +1,7 @@
+all:	atnwalk.so
+
+atnwalk.so:	atnwalk.c
+	$(CC) -I ../../include/ -shared -fPIC -O3 -o atnwalk.so atnwalk.c
+
+clean:
+	rm -f *.so *.o *~ core

custom_mutators/atnwalk/README.md

@@ -0,0 +1,43 @@
+# ATNwalk: Grammar-Based Fuzzing using Only Bit-Mutations
+
+This is a custom mutator integration of ATNwalk that works by communicating via UNIX domain sockets.
+
+Refer to [https://github.com/atnwalk/testbed](https://github.com/atnwalk/testbed) for detailed instructions on how to get ATNwalk running.
+
+## Build
+
+Just type `make` to build `atnwalk.so`.
+
+## Run
+
+**NOTE:** The commands below just demonstrate an example how running ATNwalk looks like and require a working [testbed](https://github.com/atnwalk/testbed)
+
+```bash
+# create the required a random seed first
+mkdir -p ~/campaign/example/seeds
+cd ~/campaign/example/seeds
+head -c1 /dev/urandom | ~/atnwalk/build/javascript/bin/decode -wb > seed.decoded 2> seed.encoded
+
+# create the required atnwalk directory and copy the seed
+cd ../
+mkdir -p atnwalk/in
+cp ./seeds/seed.encoded atnwalk/in/seed
+cd atnwalk
+
+# assign to a single core when benchmarking it, change the CPU number as required
+CPU_ID=0
+
+# start the ATNwalk server
+nohup taskset -c ${CPU_ID} ${HOME}/atnwalk/build/javascript/bin/server 100 > server.log 2>&1 &
+
+# start AFL++ with ATNwalk
+AFL_SKIP_CPUFREQ=1 \
+  AFL_DISABLE_TRIM=1 \
+  AFL_CUSTOM_MUTATOR_ONLY=1 \
+  AFL_CUSTOM_MUTATOR_LIBRARY=${HOME}/AFLplusplus/custom_mutators/atnwalk/atnwalk.so \
+  AFL_POST_PROCESS_KEEP_ORIGINAL=1 \
+  ~/AFLplusplus/afl-fuzz -t 100 -i in/ -o out -b ${CPU_ID} -- ~/jerryscript/build/bin/jerry
+
+# make sure to kill the ATNwalk server process after you're done
+kill "$(cat atnwalk.pid)"
+```

custom_mutators/atnwalk/atnwalk.c

@@ -0,0 +1,539 @@
+#include "afl-fuzz.h"
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#define BUF_SIZE_INIT 4096
+#define SOCKET_NAME "./atnwalk.socket"
+
+// how many errors (e.g. timeouts) to tolerate until moving on to the next queue
+// entry
+#define ATNWALK_ERRORS_MAX 1
+
+// how many execution timeouts to tolerate until moving on to the next queue
+// entry
+#define EXEC_TIMEOUT_MAX 2
+
+// handshake constants
+const uint8_t SERVER_ARE_YOU_ALIVE = 213;
+const uint8_t SERVER_YES_I_AM_ALIVE = 42;
+
+// control bits
+const uint8_t SERVER_CROSSOVER_BIT = 0b00000001;
+const uint8_t SERVER_MUTATE_BIT = 0b00000010;
+const uint8_t SERVER_DECODE_BIT = 0b00000100;
+const uint8_t SERVER_ENCODE_BIT = 0b00001000;
+
+typedef struct atnwalk_mutator {
+
+  afl_state_t *afl;
+  uint8_t      atnwalk_error_count;
+  uint64_t     prev_timeouts;
+  uint32_t     prev_hits;
+  uint32_t     stage_havoc_cur;
+  uint32_t     stage_havoc_max;
+  uint32_t     stage_splice_cur;
+  uint32_t     stage_splice_max;
+  uint8_t     *fuzz_buf;
+  size_t       fuzz_size;
+  uint8_t     *post_process_buf;
+  size_t       post_process_size;
+
+} atnwalk_mutator_t;
+
+int read_all(int fd, uint8_t *buf, size_t buf_size) {
+
+  int    n;
+  size_t offset = 0;
+  while (offset < buf_size) {
+
+    n = read(fd, buf + offset, buf_size - offset);
+    if (n == -1) { return 0; }
+    offset += n;
+
+  }
+
+  return 1;
+
+}
+
+int write_all(int fd, uint8_t *buf, size_t buf_size) {
+
+  int    n;
+  size_t offset = 0;
+  while (offset < buf_size) {
+
+    n = write(fd, buf + offset, buf_size - offset);
+    if (n == -1) { return 0; }
+    offset += n;
+
+  }
+
+  return 1;
+
+}
+
+void put_uint32(uint8_t *buf, uint32_t val) {
+
+  buf[0] = (uint8_t)(val >> 24);
+  buf[1] = (uint8_t)((val & 0x00ff0000) >> 16);
+  buf[2] = (uint8_t)((val & 0x0000ff00) >> 8);
+  buf[3] = (uint8_t)(val & 0x000000ff);
+
+}
+
+uint32_t to_uint32(uint8_t *buf) {
+
+  uint32_t val = 0;
+  val |= (((uint32_t)buf[0]) << 24);
+  val |= (((uint32_t)buf[1]) << 16);
+  val |= (((uint32_t)buf[2]) << 8);
+  val |= ((uint32_t)buf[3]);
+  return val;
+
+}
+
+void put_uint64(uint8_t *buf, uint64_t val) {
+
+  buf[0] = (uint8_t)(val >> 56);
+  buf[1] = (uint8_t)((val & 0x00ff000000000000) >> 48);
+  buf[2] = (uint8_t)((val & 0x0000ff0000000000) >> 40);
+  buf[3] = (uint8_t)((val & 0x000000ff00000000) >> 32);
+  buf[4] = (uint8_t)((val & 0x00000000ff000000) >> 24);
+  buf[5] = (uint8_t)((val & 0x0000000000ff0000) >> 16);
+  buf[6] = (uint8_t)((val & 0x000000000000ff00) >> 8);
+  buf[7] = (uint8_t)(val & 0x00000000000000ff);
+
+}
+
+/**
+ * Initialize this custom mutator
+ *
+ * @param[in] afl a pointer to the internal state object. Can be ignored for
+ * now.
+ * @param[in] seed A seed for this mutator - the same seed should always mutate
+ * in the same way.
+ * @return Pointer to the data object this custom mutator instance should use.
+ *         There may be multiple instances of this mutator in one afl-fuzz run!
+ *         Return NULL on error.
+ */
+atnwalk_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
+
+  srand(seed);
+  atnwalk_mutator_t *data =
+      (atnwalk_mutator_t *)malloc(sizeof(atnwalk_mutator_t));
+  if (!data) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  }
+
+  data->afl = afl;
+  data->prev_hits = 0;
+  data->fuzz_buf = (uint8_t *)malloc(BUF_SIZE_INIT);
+  data->fuzz_size = BUF_SIZE_INIT;
+  data->post_process_buf = (uint8_t *)malloc(BUF_SIZE_INIT);
+  data->post_process_size = BUF_SIZE_INIT;
+  return data;
+
+}
+
+unsigned int afl_custom_fuzz_count(atnwalk_mutator_t   *data,
+                                   const unsigned char *buf, size_t buf_size) {
+
+  // afl_custom_fuzz_count is called exactly once before entering the
+  // 'stage-loop' for the current queue entry thus, we use it to reset the error
+  // count and to initialize stage variables (somewhat not intended by the API,
+  // but still better than rewriting the whole thing to have a custom mutator
+  // stage)
+  data->atnwalk_error_count = 0;
+  data->prev_timeouts = data->afl->total_tmouts;
+
+  // it might happen that on the last execution of the splice stage a new path
+  // is found we need to fix that here and count it
+  if (data->prev_hits) {
+
+    data->afl->stage_finds[STAGE_SPLICE] +=
+        data->afl->queued_items + data->afl->saved_crashes - data->prev_hits;
+
+  }
+
+  data->prev_hits = data->afl->queued_items + data->afl->saved_crashes;
+  data->stage_havoc_cur = 0;
+  data->stage_splice_cur = 0;
+
+  // 50% havoc, 50% splice
+  data->stage_havoc_max = data->afl->stage_max >> 1;
+  if (data->stage_havoc_max < HAVOC_MIN) { data->stage_havoc_max = HAVOC_MIN; }
+  data->stage_splice_max = data->stage_havoc_max;
+  return data->stage_havoc_max + data->stage_splice_max;
+
+}
+
+size_t fail_fatal(int fd_socket, uint8_t **out_buf) {
+
+  if (fd_socket != -1) { close(fd_socket); }
+  *out_buf = NULL;
+  return 0;
+
+}
+
+size_t fail_gracefully(int fd_socket, atnwalk_mutator_t *data, uint8_t *buf,
+                       size_t buf_size, uint8_t **out_buf) {
+
+  if (fd_socket != -1) { close(fd_socket); }
+  data->atnwalk_error_count++;
+  if (data->atnwalk_error_count > ATNWALK_ERRORS_MAX) {
+
+    data->afl->stage_max = data->afl->stage_cur;
+
+  }
+
+  *out_buf = buf;
+  return buf_size;
+
+}
+
+/**
+ * Perform custom mutations on a given input
+ *
+ * (Optional for now. Required in the future)
+ *
+ * @param[in] data pointer returned in afl_custom_init for this fuzz case
+ * @param[in] buf Pointer to input data to be mutated
+ * @param[in] buf_size Size of input data
+ * @param[out] out_buf the buffer we will work on. we can reuse *buf. NULL on
+ * error.
+ * @param[in] add_buf Buffer containing the additional test case
+ * @param[in] add_buf_size Size of the additional test case
+ * @param[in] max_size Maximum size of the mutated output. The mutation must not
+ *     produce data larger than max_size.
+ * @return Size of the mutated output.
+ */
+size_t afl_custom_fuzz(atnwalk_mutator_t *data, uint8_t *buf, size_t buf_size,
+                       uint8_t **out_buf, uint8_t *add_buf, size_t add_buf_size,
+                       size_t max_size) {
+
+  struct sockaddr_un addr;
+  int                fd_socket;
+  uint8_t            ctrl_buf[8];
+  uint8_t            wanted;
+
+  // let's display what's going on in a nice way
+  if (data->stage_havoc_cur == 0) {
+
+    data->afl->stage_name = (uint8_t *)"atnwalk - havoc";
+
+  }
+
+  if (data->stage_havoc_cur == data->stage_havoc_max) {
+
+    data->afl->stage_name = (uint8_t *)"atnwalk - splice";
+
+  }
+
+  // increase the respective havoc or splice counters
+  if (data->stage_havoc_cur < data->stage_havoc_max) {
+
+    data->stage_havoc_cur++;
+    data->afl->stage_cycles[STAGE_HAVOC]++;
+
+  } else {
+
+    // if there is nothing to splice, continue with havoc and skip splicing this
+    // time
+    if (data->afl->ready_for_splicing_count < 1) {
+
+      data->stage_havoc_max = data->afl->stage_max;
+      data->stage_havoc_cur++;
+      data->afl->stage_cycles[STAGE_HAVOC]++;
+
+    } else {
+
+      data->stage_splice_cur++;
+      data->afl->stage_cycles[STAGE_SPLICE]++;
+
+    }
+
+  }
+
+  // keep track of found new corpus seeds per stage
+  if (data->afl->queued_items + data->afl->saved_crashes > data->prev_hits) {
+
+    if (data->stage_splice_cur <= 1) {
+
+      data->afl->stage_finds[STAGE_HAVOC] +=
+          data->afl->queued_items + data->afl->saved_crashes - data->prev_hits;
+
+    } else {
+
+      data->afl->stage_finds[STAGE_SPLICE] +=
+          data->afl->queued_items + data->afl->saved_crashes - data->prev_hits;
+
+    }
+
+  }
+
+  data->prev_hits = data->afl->queued_items + data->afl->saved_crashes;
+
+  // check whether this input produces a lot of timeouts, if it does then
+  // abandon this queue entry
+  if (data->afl->total_tmouts - data->prev_timeouts >= EXEC_TIMEOUT_MAX) {
+
+    data->afl->stage_max = data->afl->stage_cur;
+    return fail_gracefully(-1, data, buf, buf_size, out_buf);
+
+  }
+
+  // initialize the socket
+  fd_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+  if (fd_socket == -1) { return fail_fatal(fd_socket, out_buf); }
+  memset(&addr, 0, sizeof(addr));
+  addr.sun_family = AF_UNIX;
+  strncpy(addr.sun_path, SOCKET_NAME, sizeof(addr.sun_path) - 1);
+  if (connect(fd_socket, (const struct sockaddr *)&addr, sizeof(addr)) == -1) {
+
+    return fail_fatal(fd_socket, out_buf);
+
+  }
+
+  // ask whether the server is alive
+  ctrl_buf[0] = SERVER_ARE_YOU_ALIVE;
+  if (!write_all(fd_socket, ctrl_buf, 1)) {
+
+    return fail_fatal(fd_socket, out_buf);
+
+  }
+
+  // see whether the server replies as expected
+  if (!read_all(fd_socket, ctrl_buf, 1) ||
+      ctrl_buf[0] != SERVER_YES_I_AM_ALIVE) {
+
+    return fail_fatal(fd_socket, out_buf);
+
+  }
+
+  // tell the server what we want to do
+  wanted = SERVER_MUTATE_BIT | SERVER_ENCODE_BIT;
+
+  // perform a crossover if we are splicing
+  if (data->stage_splice_cur > 0) { wanted |= SERVER_CROSSOVER_BIT; }
+
+  // tell the server what we want and how much data will be sent
+  ctrl_buf[0] = wanted;
+  put_uint32(ctrl_buf + 1, (uint32_t)buf_size);
+  if (!write_all(fd_socket, ctrl_buf, 5)) {
+
+    return fail_fatal(fd_socket, out_buf);
+
+  }
+
+  // send the data to mutate and encode
+  if (!write_all(fd_socket, buf, buf_size)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  if (wanted & SERVER_CROSSOVER_BIT) {
+
+    // since we requested crossover, we will first tell how much additional data
+    // is to be expected
+    put_uint32(ctrl_buf, (uint32_t)add_buf_size);
+    if (!write_all(fd_socket, ctrl_buf, 4)) {
+
+      return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+    }
+
+    // send the additional data for crossover
+    if (!write_all(fd_socket, add_buf, add_buf_size)) {
+
+      return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+    }
+
+    // lastly, a seed is required for crossover so send one
+    put_uint64(ctrl_buf, (uint64_t)rand());
+    if (!write_all(fd_socket, ctrl_buf, 8)) {
+
+      return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+    }
+
+  }
+
+  // since we requested mutation, we need to provide a seed for that
+  put_uint64(ctrl_buf, (uint64_t)rand());
+  if (!write_all(fd_socket, ctrl_buf, 8)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  // obtain the required buffer size for the data that will be returned
+  if (!read_all(fd_socket, ctrl_buf, 4)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  size_t new_size = (size_t)to_uint32(ctrl_buf);
+
+  // if the data is too large then we ignore this round
+  if (new_size > max_size) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  if (new_size > buf_size) {
+
+    // buf is too small, need to use data->fuzz_buf, let's see whether we need
+    // to reallocate
+    if (new_size > data->fuzz_size) {
+
+      data->fuzz_size = new_size << 1;
+      data->fuzz_buf = (uint8_t *)realloc(data->fuzz_buf, data->fuzz_size);
+
+    }
+
+    *out_buf = data->fuzz_buf;
+
+  } else {
+
+    // new_size fits into buf, so re-use it
+    *out_buf = buf;
+
+  }
+
+  // obtain the encoded data
+  if (!read_all(fd_socket, *out_buf, new_size)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  close(fd_socket);
+  return new_size;
+
+}
+
+/**
+ * A post-processing function to use right before AFL writes the test case to
+ * disk in order to execute the target.
+ *
+ * (Optional) If this functionality is not needed, simply don't define this
+ * function.
+ *
+ * @param[in] data pointer returned in afl_custom_init for this fuzz case
+ * @param[in] buf Buffer containing the test case to be executed
+ * @param[in] buf_size Size of the test case
+ * @param[out] out_buf Pointer to the buffer containing the test case after
+ *     processing. External library should allocate memory for out_buf.
+ *     The buf pointer may be reused (up to the given buf_size);
+ * @return Size of the output buffer after processing or the needed amount.
+ *     A return of 0 indicates an error.
+ */
+size_t afl_custom_post_process(atnwalk_mutator_t *data, uint8_t *buf,
+                               size_t buf_size, uint8_t **out_buf) {
+
+  struct sockaddr_un addr;
+  int                fd_socket;
+  uint8_t            ctrl_buf[8];
+
+  // initialize the socket
+  fd_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+  if (fd_socket == -1) { return fail_fatal(fd_socket, out_buf); }
+  memset(&addr, 0, sizeof(addr));
+  addr.sun_family = AF_UNIX;
+  strncpy(addr.sun_path, SOCKET_NAME, sizeof(addr.sun_path) - 1);
+  if (connect(fd_socket, (const struct sockaddr *)&addr, sizeof(addr)) == -1) {
+
+    return fail_fatal(fd_socket, out_buf);
+
+  }
+
+  // ask whether the server is alive
+  ctrl_buf[0] = SERVER_ARE_YOU_ALIVE;
+  if (!write_all(fd_socket, ctrl_buf, 1)) {
+
+    return fail_fatal(fd_socket, out_buf);
+
+  }
+
+  // see whether the server replies as expected
+  if (!read_all(fd_socket, ctrl_buf, 1) ||
+      ctrl_buf[0] != SERVER_YES_I_AM_ALIVE) {
+
+    return fail_fatal(fd_socket, out_buf);
+
+  }
+
+  // tell the server what we want and how much data will be sent
+  ctrl_buf[0] = SERVER_DECODE_BIT;
+  put_uint32(ctrl_buf + 1, (uint32_t)buf_size);
+  if (!write_all(fd_socket, ctrl_buf, 5)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  // send the data to decode
+  if (!write_all(fd_socket, buf, buf_size)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  // obtain the required buffer size for the data that will be returned
+  if (!read_all(fd_socket, ctrl_buf, 4)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  size_t new_size = (size_t)to_uint32(ctrl_buf);
+
+  // need to use data->post_process_buf, let's see whether we need to reallocate
+  if (new_size > data->post_process_size) {
+
+    data->post_process_size = new_size << 1;
+    data->post_process_buf =
+        (uint8_t *)realloc(data->post_process_buf, data->post_process_size);
+
+  }
+
+  *out_buf = data->post_process_buf;
+
+  // obtain the decoded data
+  if (!read_all(fd_socket, *out_buf, new_size)) {
+
+    return fail_gracefully(fd_socket, data, buf, buf_size, out_buf);
+
+  }
+
+  close(fd_socket);
+  return new_size;
+
+}
+
+/**
+ * Deinitialize everything
+ *
+ * @param data The data ptr from afl_custom_init
+ */
+void afl_custom_deinit(atnwalk_mutator_t *data) {
+
+  free(data->fuzz_buf);
+  free(data->post_process_buf);
+  free(data);
+
+}
+

custom_mutators/autotokens/Makefile

@@ -0,0 +1,26 @@
+ifdef debug
+	CPPLAGS += -fsanitize=address
+	CXXFLAGS += -Wall
+	CC := clang
+	CXX := clang++
+endif
+ifdef DEBUG
+	CPPFLAGS += -fsanitize=address
+	CXXFLAGS += -Wall
+	CC := clang
+	CXX := clang++
+endif
+
+all:	autotokens.so
+
+afl-fuzz-queue.o:	../../src/afl-fuzz-queue.c
+	$(CC) -D_STANDALONE_MODULE=1 -I../../include -g -O3 $(CPPFLAGS) -fPIC -c -o ./afl-fuzz-queue.o ../../src/afl-fuzz-queue.c
+
+afl-common.o:	../../src/afl-common.c
+	$(CC) -I../../include -g -O3 $(CPPFLAGS) -DBIN_PATH=\"dummy\" -Wno-pointer-sign -fPIC -c -o ./afl-common.o ../../src/afl-common.c
+
+autotokens.so:	afl-fuzz-queue.o afl-common.o autotokens.cpp
+	$(CXX) -Wno-deprecated -g -O3 $(CXXFLAGS) $(CPPFLAGS) -shared -fPIC -o autotokens.so -I../../include autotokens.cpp  ./afl-fuzz-queue.o ../../src/afl-performance.o ./afl-common.o
+
+clean:
+	rm -f autotokens.so *.o *~ core

custom_mutators/autotokens/README

@@ -0,0 +1,34 @@
+# Autotokens
+
+This implements an improved autotoken grammar fuzzing idea presented in
+[Token-Level Fuzzing][https://www.usenix.org/system/files/sec21-salls.pdf].
+It is a grammar fuzzer without actually knowing the grammar, but only works
+with text based inputs.
+
+It is recommended to run with together in an instance with `CMPLOG`.
+
+If you have a dictionary (`-x`) this improves this custom grammar mutator.
+
+If **not** running with `CMPLOG`, it is possible to set
+`AFL_CUSTOM_MUTATOR_ONLY` to concentrate on grammar bug classes.
+
+Do **not** set `AFL_DISABLE_TRIM` with this custom mutator!
+
+## Configuration via environment variables
+
+`AUTOTOKENS_ONLY_FAV` - only use this mutator on favorite queue items
+`AUTOTOKENS_COMMENT` - what character or string starts a comment which will be
+                       removed. Default: `/* ... */`
+`AUTOTOKENS_FUZZ_COUNT_SHIFT` - reduce the number of fuzzing performed, shifting
+                                the value by this number, e.g. 1.
+`AUTOTOKENS_AUTO_DISABLE` - disable this module if the seeds are not ascii
+                            (or no input and no (ascii) dictionary)
+`AUTOTOKENS_LEARN_DICT` - learn from dictionaries?
+                          0 = none
+                          1 = only -x or autodict
+                          2 = -x, autodict and `CMPLOG`
+`AUTOTOKENS_CHANGE_MIN` - minimum number of mutations (1-256, default 8)
+`AUTOTOKENS_CHANGE_MAX` - maximum number of mutations (1-4096, default 64)
+`AUTOTOKENS_CREATE_FROM_THIN_AIR` - if only one small start file is present and
+                                    a dictionary loaded then create one initial
+                                    structure based on the dictionary.

custom_mutators/examples/README.md

@@ -33,3 +33,6 @@ like surgical_havoc_mutate() that allow to perform a randomly chosen
 mutation from a subset of the havoc mutations.
 If you do so, you have to specify -I /path/to/AFLplusplus/include when
 compiling.
+
+elf_header_mutator.c - example ELF header mutator based on 
+ [LibGolf](https://github.com/xcellerator/libgolf/)

custom_mutators/examples/custom_mutator_helpers.h

@@ -1,342 +0,0 @@
-#ifndef CUSTOM_MUTATOR_HELPERS
-#define CUSTOM_MUTATOR_HELPERS
-
-#include "config.h"
-#include "types.h"
-#include <stdlib.h>
-
-#define INITIAL_GROWTH_SIZE (64)
-
-#define RAND_BELOW(limit) (rand() % (limit))
-
-/* Use in a struct: creates a name_buf and a name_size variable. */
-#define BUF_VAR(type, name) \
-  type * name##_buf;        \
-  size_t name##_size;
-/* this fills in `&structptr->something_buf, &structptr->something_size`. */
-#define BUF_PARAMS(struct, name) \
-  (void **)&struct->name##_buf, &struct->name##_size
-
-typedef struct {
-
-} afl_t;
-
-static void surgical_havoc_mutate(u8 *out_buf, s32 begin, s32 end) {
-
-  static s8  interesting_8[] = {INTERESTING_8};
-  static s16 interesting_16[] = {INTERESTING_8, INTERESTING_16};
-  static s32 interesting_32[] = {INTERESTING_8, INTERESTING_16, INTERESTING_32};
-
-  switch (RAND_BELOW(12)) {
-
-    case 0: {
-
-      /* Flip a single bit somewhere. Spooky! */
-
-      s32 bit_idx = ((RAND_BELOW(end - begin) + begin) << 3) + RAND_BELOW(8);
-
-      out_buf[bit_idx >> 3] ^= 128 >> (bit_idx & 7);
-
-      break;
-
-    }
-
-    case 1: {
-
-      /* Set byte to interesting value. */
-
-      u8 val = interesting_8[RAND_BELOW(sizeof(interesting_8))];
-      out_buf[(RAND_BELOW(end - begin) + begin)] = val;
-
-      break;
-
-    }
-
-    case 2: {
-
-      /* Set word to interesting value, randomly choosing endian. */
-
-      if (end - begin < 2) break;
-
-      s32 byte_idx = (RAND_BELOW(end - begin) + begin);
-
-      if (byte_idx >= end - 1) break;
-
-      switch (RAND_BELOW(2)) {
-
-        case 0:
-          *(u16 *)(out_buf + byte_idx) =
-              interesting_16[RAND_BELOW(sizeof(interesting_16) >> 1)];
-          break;
-        case 1:
-          *(u16 *)(out_buf + byte_idx) =
-              SWAP16(interesting_16[RAND_BELOW(sizeof(interesting_16) >> 1)]);
-          break;
-
-      }
-
-      break;
-
-    }
-
-    case 3: {
-
-      /* Set dword to interesting value, randomly choosing endian. */
-
-      if (end - begin < 4) break;
-
-      s32 byte_idx = (RAND_BELOW(end - begin) + begin);
-
-      if (byte_idx >= end - 3) break;
-
-      switch (RAND_BELOW(2)) {
-
-        case 0:
-          *(u32 *)(out_buf + byte_idx) =
-              interesting_32[RAND_BELOW(sizeof(interesting_32) >> 2)];
-          break;
-        case 1:
-          *(u32 *)(out_buf + byte_idx) =
-              SWAP32(interesting_32[RAND_BELOW(sizeof(interesting_32) >> 2)]);
-          break;
-
-      }
-
-      break;
-
-    }
-
-    case 4: {
-
-      /* Set qword to interesting value, randomly choosing endian. */
-
-      if (end - begin < 8) break;
-
-      s32 byte_idx = (RAND_BELOW(end - begin) + begin);
-
-      if (byte_idx >= end - 7) break;
-
-      switch (RAND_BELOW(2)) {
-
-        case 0:
-          *(u64 *)(out_buf + byte_idx) =
-              (s64)interesting_32[RAND_BELOW(sizeof(interesting_32) >> 2)];
-          break;
-        case 1:
-          *(u64 *)(out_buf + byte_idx) = SWAP64(
-              (s64)interesting_32[RAND_BELOW(sizeof(interesting_32) >> 2)]);
-          break;
-
-      }
-
-      break;
-
-    }
-
-    case 5: {
-
-      /* Randomly subtract from byte. */
-
-      out_buf[(RAND_BELOW(end - begin) + begin)] -= 1 + RAND_BELOW(ARITH_MAX);
-
-      break;
-
-    }
-
-    case 6: {
-
-      /* Randomly add to byte. */
-
-      out_buf[(RAND_BELOW(end - begin) + begin)] += 1 + RAND_BELOW(ARITH_MAX);
-
-      break;
-
-    }
-
-    case 7: {
-
-      /* Randomly subtract from word, random endian. */
-
-      if (end - begin < 2) break;
-
-      s32 byte_idx = (RAND_BELOW(end - begin) + begin);
-
-      if (byte_idx >= end - 1) break;
-
-      if (RAND_BELOW(2)) {
-
-        *(u16 *)(out_buf + byte_idx) -= 1 + RAND_BELOW(ARITH_MAX);
-
-      } else {
-
-        u16 num = 1 + RAND_BELOW(ARITH_MAX);
-
-        *(u16 *)(out_buf + byte_idx) =
-            SWAP16(SWAP16(*(u16 *)(out_buf + byte_idx)) - num);
-
-      }
-
-      break;
-
-    }
-
-    case 8: {
-
-      /* Randomly add to word, random endian. */
-
-      if (end - begin < 2) break;
-
-      s32 byte_idx = (RAND_BELOW(end - begin) + begin);
-
-      if (byte_idx >= end - 1) break;
-
-      if (RAND_BELOW(2)) {
-
-        *(u16 *)(out_buf + byte_idx) += 1 + RAND_BELOW(ARITH_MAX);
-
-      } else {
-
-        u16 num = 1 + RAND_BELOW(ARITH_MAX);
-
-        *(u16 *)(out_buf + byte_idx) =
-            SWAP16(SWAP16(*(u16 *)(out_buf + byte_idx)) + num);
-
-      }
-
-      break;
-
-    }
-
-    case 9: {
-
-      /* Randomly subtract from dword, random endian. */
-
-      if (end - begin < 4) break;
-
-      s32 byte_idx = (RAND_BELOW(end - begin) + begin);
-
-      if (byte_idx >= end - 3) break;
-
-      if (RAND_BELOW(2)) {
-
-        *(u32 *)(out_buf + byte_idx) -= 1 + RAND_BELOW(ARITH_MAX);
-
-      } else {
-
-        u32 num = 1 + RAND_BELOW(ARITH_MAX);
-
-        *(u32 *)(out_buf + byte_idx) =
-            SWAP32(SWAP32(*(u32 *)(out_buf + byte_idx)) - num);
-
-      }
-
-      break;
-
-    }
-
-    case 10: {
-
-      /* Randomly add to dword, random endian. */
-
-      if (end - begin < 4) break;
-
-      s32 byte_idx = (RAND_BELOW(end - begin) + begin);
-
-      if (byte_idx >= end - 3) break;
-
-      if (RAND_BELOW(2)) {
-
-        *(u32 *)(out_buf + byte_idx) += 1 + RAND_BELOW(ARITH_MAX);
-
-      } else {
-
-        u32 num = 1 + RAND_BELOW(ARITH_MAX);
-
-        *(u32 *)(out_buf + byte_idx) =
-            SWAP32(SWAP32(*(u32 *)(out_buf + byte_idx)) + num);
-
-      }
-
-      break;
-
-    }
-
-    case 11: {
-
-      /* Just set a random byte to a random value. Because,
-         why not. We use XOR with 1-255 to eliminate the
-         possibility of a no-op. */
-
-      out_buf[(RAND_BELOW(end - begin) + begin)] ^= 1 + RAND_BELOW(255);
-
-      break;
-
-    }
-
-  }
-
-}
-
-/* This function calculates the next power of 2 greater or equal its argument.
- @return The rounded up power of 2 (if no overflow) or 0 on overflow.
-*/
-static inline size_t next_pow2(size_t in) {
-
-  if (in == 0 || in > (size_t)-1)
-    return 0;                  /* avoid undefined behaviour under-/overflow */
-  size_t out = in - 1;
-  out |= out >> 1;
-  out |= out >> 2;
-  out |= out >> 4;
-  out |= out >> 8;
-  out |= out >> 16;
-  return out + 1;
-
-}
-
-/* This function makes sure *size is > size_needed after call.
- It will realloc *buf otherwise.
- *size will grow exponentially as per:
- https://blog.mozilla.org/nnethercote/2014/11/04/please-grow-your-buffers-exponentially/
- Will return NULL and free *buf if size_needed is <1 or realloc failed.
- @return For convenience, this function returns *buf.
- */
-static inline void *maybe_grow(void **buf, size_t *size, size_t size_needed) {
-
-  /* No need to realloc */
-  if (likely(size_needed && *size >= size_needed)) return *buf;
-
-  /* No initial size was set */
-  if (size_needed < INITIAL_GROWTH_SIZE) size_needed = INITIAL_GROWTH_SIZE;
-
-  /* grow exponentially */
-  size_t next_size = next_pow2(size_needed);
-
-  /* handle overflow */
-  if (!next_size) { next_size = size_needed; }
-
-  /* alloc */
-  *buf = realloc(*buf, next_size);
-  *size = *buf ? next_size : 0;
-
-  return *buf;
-
-}
-
-/* Swaps buf1 ptr and buf2 ptr, as well as their sizes */
-static inline void afl_swap_bufs(void **buf1, size_t *size1, void **buf2,
-                                 size_t *size2) {
-
-  void * scratch_buf = *buf1;
-  size_t scratch_size = *size1;
-  *buf1 = *buf2;
-  *size1 = *size2;
-  *buf2 = scratch_buf;
-  *size2 = scratch_size;
-
-}
-
-#undef INITIAL_GROWTH_SIZE
-
-#endif
-

custom_mutators/examples/custom_post_run.c

@@ -0,0 +1,53 @@
+//
+// This is an example on how to use afl_custom_post_run
+// It executes custom code each time after AFL++ executes the target
+//
+// cc -O3 -fPIC -shared -g -o custom_post_run.so -I../../include custom_post_run.c
+// cd ../..
+// afl-cc -o test-instr test-instr.c
+// AFL_CUSTOM_MUTATOR_LIBRARY=custom_mutators/examples/custom_post_run.so \
+//   afl-fuzz -i in -o out -- ./test-instr -f /tmp/foo
+//
+
+
+#include "afl-fuzz.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+typedef struct my_mutator {
+
+  afl_state_t *afl;
+
+} my_mutator_t;
+
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
+
+  my_mutator_t *data = calloc(1, sizeof(my_mutator_t));
+  if (!data) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  }
+
+  data->afl = afl;
+
+  return data;
+
+}
+
+void afl_custom_post_run(my_mutator_t *data) {
+
+  printf("hello from afl_custom_post_run\n");
+  return;
+}
+
+
+void afl_custom_deinit(my_mutator_t *data) {
+
+  free(data);
+
+}

custom_mutators/examples/custom_send.c

@@ -0,0 +1,63 @@
+//
+// This is an example on how to use afl_custom_send
+// It writes each mutated data set to /tmp/foo
+// You can modify this to send to IPC, shared memory, etc.
+//
+// cc -O3 -fPIC -shared -g -o custom_send.so -I../../include custom_send.c
+// cd ../..
+// afl-cc -o test-instr test-instr.c
+// AFL_CUSTOM_MUTATOR_LIBRARY=custom_mutators/examples/custom_send.so \
+//   afl-fuzz -i in -o out -- ./test-instr -f /tmp/foo
+//
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "afl-fuzz.h"
+
+typedef struct my_mutator {
+
+  afl_state_t *afl;
+
+} my_mutator_t;
+
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
+
+  my_mutator_t *data = calloc(1, sizeof(my_mutator_t));
+  if (!data) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  }
+
+  data->afl = afl;
+
+  return data;
+
+}
+
+void afl_custom_fuzz_send(my_mutator_t *data, uint8_t *buf, size_t buf_size) {
+
+  int fd = open("/tmp/foo", O_CREAT | O_NOFOLLOW | O_TRUNC | O_RDWR, 0644);
+
+  if (fd >= 0) {
+
+    (void)write(fd, buf, buf_size);
+    close(fd);
+
+  }
+
+  return;
+
+}
+
+void afl_custom_deinit(my_mutator_t *data) {
+
+  free(data);
+
+}
+

custom_mutators/examples/elf_header_mutator.c

@@ -0,0 +1,679 @@
+/*
+   AFL++ Custom Mutator for ELF Headers
+   Written by @echel0n <melih.sahin@protonmail.com>
+   based on libgolf.h by @xcellerator
+   $ gcc -O3 -fPIC -shared -o elf_mutator.so -I ~/AFLplusplus/include/
+ */
+#include "afl-fuzz.h"
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <linux/elf.h>
+
+/* EI_ABIVERSION isn't used anymore and elf.h defines EI_PAD to be 0x09 */
+#define EI_ABIVERSION 0x08
+#define EI_PAD 0x09
+/* Define the Architecture and ISA constants to match those in <linux/elf.h> */
+#define X86_64 EM_X86_64
+#define ARM32 EM_ARM
+#define AARCH64 EM_AARCH64
+#define uchar unsigned char
+#define DATA_SIZE 0x100
+
+/*
+ * The ELF and Program headers are different sizes depending on 32- and 64-bit
+ * architectures
+ * taken from libgolf.h
+ */
+#define EHDR_T(x) Elf##x##_Ehdr
+#define PHDR_T(x) Elf##x##_Phdr
+#define EHDR(x) ehdr##x
+#define PHDR(x) phdr##x
+#define GET_EHDR(x) (&(elf_ptr->EHDR(x)));
+#define GET_PHDR(x) (&(elf_ptr->PHDR(x)));
+#define REF_EHDR(b, x) ((Elf##b##_Ehdr *)ehdr)->x
+#define REF_PHDR(b, x) ((Elf##b##_Phdr *)phdr)->x
+int ehdr_size;
+int phdr_size;
+/*
+ * This struct holds the bytes that will be executed, and the size.
+ */
+typedef struct text_segment {
+
+  size_t         text_size;
+  unsigned char *text_segment;
+
+} TextSegment;
+
+// example shellcode that exits
+// taken from libgolf.h
+unsigned char buf[] = {0xb0, 0x3c, 0x31, 0xff, 0x0f, 0x05};
+
+/*
+ * This is the raw ELF file
+ * - EHDR(xx) is the ELF header
+ * - PHDR(xx) is the program header
+ * - text is the text segment
+ * - filename is the name of the golf'd binary
+ * - isa is the target architecture (X86_64, ARM32, AARCH64)
+ * taken from libgolf.h
+ */
+typedef struct rawbinary_t {
+
+  EHDR_T(32) EHDR(32);
+  PHDR_T(32) PHDR(32);
+  EHDR_T(64) EHDR(64);
+  PHDR_T(64) PHDR(64);
+  TextSegment text;
+  char       *filename;
+  int         isa;
+
+} RawBinary;
+
+/*
+ * Copy an E_IDENT array into the corresponding fields in the ELF header
+ * Called by populate_ehdr()
+ * taken from libgolf.h
+ */
+int populate_e_ident(RawBinary *elf_ptr, unsigned char e_ident[]) {
+
+  int i;
+  /* Depending on whether the target ISA is 32- or 64-bit, set e_ident */
+  switch (elf_ptr->isa) {
+
+    case X86_64:
+    case AARCH64:
+      for (i = 0; i < EI_NIDENT; i++)
+        elf_ptr->EHDR(64).e_ident[i] = e_ident[i];
+      break;
+    case ARM32:
+      for (i = 0; i < EI_NIDENT; i++)
+        elf_ptr->EHDR(32).e_ident[i] = e_ident[i];
+      break;
+    default:
+      exit(1);
+
+  }
+
+  return 0;
+
+}
+
+/*
+ * Copy bytes from buf[] array into text_segment in ELF struct
+ * taken from libgolf.h
+ */
+int copy_text_segment(RawBinary *elf_ptr, unsigned char buf[], int text_size) {
+
+  int i;
+
+  /* Set size of text segment and allocate the buffer */
+  elf_ptr->text.text_size = text_size;
+  elf_ptr->text.text_segment =
+      malloc(elf_ptr->text.text_size * sizeof(unsigned char));
+
+  /* Copy the bytes into the text segment buffer */
+  for (i = 0; i < elf_ptr->text.text_size; i++) {
+
+    elf_ptr->text.text_segment[i] = buf[i];
+
+  }
+
+}
+
+/*
+ * Populate the ELF Header with sane values
+ * Returns a pointer to an EHDR struct
+ * taken from libgolf.h
+ */
+void *populate_ehdr(RawBinary *elf_ptr) {
+
+  /*
+   * Set ehdr_size and phdr_size. Determined by whether target ISA is 32- or
+   * 64-bit.
+   */
+  switch (elf_ptr->isa) {
+
+    case X86_64:
+    case AARCH64:
+      ehdr_size = sizeof(EHDR_T(64));
+      phdr_size = sizeof(PHDR_T(64));
+      break;
+    case ARM32:
+      ehdr_size = sizeof(EHDR_T(32));
+      phdr_size = sizeof(PHDR_T(32));
+      break;
+    default:
+      exit(1);
+
+  };
+
+  /* Start with the E_IDENT area at the top of the file */
+  unsigned char e_ident[EI_NIDENT] = {0};
+
+  /* Magic Bytes */
+  e_ident[EI_MAG0] = 0x7F;
+  e_ident[EI_MAG1] = 0x45;  // E
+  e_ident[EI_MAG2] = 0x4C;  // L
+  e_ident[EI_MAG3] = 0x46;  // F
+
+  /*
+   * EI_CLASS denotes the architecture:
+   * ELFCLASS32: 0x01
+   * ELFCLASS64: 0x02
+   */
+  switch (elf_ptr->isa) {
+
+    case X86_64:
+    case AARCH64:
+      e_ident[EI_CLASS] = ELFCLASS64;
+      break;
+    case ARM32:
+      e_ident[EI_CLASS] = ELFCLASS32;
+      break;
+    default:
+      exit(1);
+
+  }
+
+  /*
+   * EI_DATA denotes the endianness:
+   * ELFDATA2LSB:   0x01
+   * ELFDATA2MSB:   0x02
+   */
+  e_ident[EI_DATA] = ELFDATA2LSB;
+
+  /* EI_VERSION is always 0x01 */
+  e_ident[EI_VERSION] = EV_CURRENT;
+
+  /*
+   * EI_OSABI defines the target OS. Ignored by most modern ELF parsers.
+   */
+  e_ident[EI_OSABI] = ELFOSABI_NONE;
+
+  /* EI_ABIVERSION was for sub-classification. Un-defined since Linux 2.6 */
+  e_ident[EI_ABIVERSION] = 0x00;
+
+  /* EI_PAD is currently unused */
+  e_ident[EI_PAD] = 0x00;
+
+  /* Copy the E_IDENT section to the ELF struct */
+  populate_e_ident(elf_ptr, e_ident);
+
+  /*
+   * The remainder of the ELF header following E_IDENT follows.
+   *
+   * ehdr is a pointer to either an Elf32_Edhr, or Elf64_Ehdr struct.
+   */
+  void *ehdr = NULL;
+  switch (elf_ptr->isa) {
+
+    case X86_64:
+    case AARCH64:
+      ehdr = (&(elf_ptr->EHDR(64)));
+      break;
+    case ARM32:
+      ehdr = (&(elf_ptr->EHDR(32)));
+      break;
+    default:
+      exit(1);
+
+  }
+
+  /*
+   * Depending on whether the ISA is 32- or 64-bit determines the size of
+   * many of the fields in the ELF Header. This switch case deals with it.
+   */
+  switch (elf_ptr->isa) {
+
+    // 64-Bit ISAs
+    case X86_64:
+    case AARCH64:
+      /*
+       * e_type specifies what kind of ELF file this is:
+       * ET_NONE:         0x00    // Unknown Type
+       * ET_REL:          0x01    // Relocatable
+       * ET_EXEC:         0x02    // Executable File
+       * ET_DYN:          0x03    // Shared Object
+       * ET_CORE:         0x04    // Core Dump
+       */
+      REF_EHDR(64, e_type) = ET_EXEC;  // 0x0002
+
+      /* e_machine specifies the target ISA */
+      REF_EHDR(64, e_machine) = elf_ptr->isa;
+
+      /* e_version is always set of 0x01 for the original ELF spec */
+      REF_EHDR(64, e_version) = EV_CURRENT;  // 0x00000001
+
+      /*
+       * e_entry is the memory address of the entry point
+       * Set by set_entry_point() after p_vaddr is set in the phdr
+       */
+      REF_EHDR(64, e_entry) = 0x0;
+
+      /*
+       * e_phoff points to the start of the program header, which
+       * immediately follows the ELF header
+       */
+      REF_EHDR(64, e_phoff) = ehdr_size;
+
+      /* e_shoff points to the start of the section header table */
+      REF_EHDR(64, e_shoff) = 0x00;
+
+      /* e_flags is architecture dependent */
+      REF_EHDR(64, e_flags) = 0x0;
+
+      /* e_ehsize contains the size of the ELF header */
+      REF_EHDR(64, e_ehsize) = ehdr_size;
+
+      /* e_phentsize is the size of the program header */
+      REF_EHDR(64, e_phentsize) = phdr_size;
+
+      /*
+       * e_phnum contains the number of entries in the program header
+       * e_phnum * e_phentsize = size of program header table
+       */
+      REF_EHDR(64, e_phnum) = 0x1;
+
+      /* e_shentsize contains the size of a section header entry */
+      REF_EHDR(64, e_shentsize) = 0x0;
+
+      /*
+       * e_shnum contains the number of entries in the section header
+       * e_shnum * e_shentsize = size of section header table
+       */
+      REF_EHDR(64, e_shnum) = 0x0;
+
+      /*
+       * e_shstrndx contains the index of the section header table that
+       * contains the section names
+       */
+      REF_EHDR(64, e_shstrndx) = 0x0;
+
+      break;
+    // 32-Bit ISAs
+    case ARM32:
+      /*
+       * e_type specifies what kind of ELF file this is:
+       * ET_NONE:         0x00    // Unknown Type
+       * ET_REL:          0x01    // Relocatable
+       * ET_EXEC:         0x02    // Executable File
+       * ET_DYN:          0x03    // Shared Object
+       * ET_CORE:         0x04    // Core Dump
+       */
+      REF_EHDR(32, e_type) = ET_EXEC;  // 0x0002
+
+      /* e_machine specifies the target ISA */
+      REF_EHDR(32, e_machine) = elf_ptr->isa;
+
+      /* e_version is always set of 0x01 for the original ELF spec */
+      REF_EHDR(32, e_version) = EV_CURRENT;  // 0x00000001
+
+      /*
+       * e_entry is the memory address of the entry point
+       * Set by set_entry_point() after p_vaddr is set in the phdr
+       */
+      REF_EHDR(32, e_entry) = 0x0;
+
+      /*
+       * e_phoff points to the start of the program header, which
+       * immediately follows the ELF header
+       */
+      REF_EHDR(32, e_phoff) = ehdr_size;
+
+      /* e_shoff points to the start of the section header table */
+      REF_EHDR(32, e_shoff) = 0x0i;
+
+      /* e_flags is architecture dependent */
+      REF_EHDR(32, e_flags) = 0x0;
+
+      /* e_ehsize contains the size of the ELF header */
+      REF_EHDR(32, e_ehsize) = ehdr_size;
+
+      /* e_phentsize is the size of the program header */
+      REF_EHDR(32, e_phentsize) = phdr_size;
+
+      /*
+       * e_phnum contains the number of entries in the program header
+       * e_phnum * e_phentsize = size of program header table
+       */
+      REF_EHDR(32, e_phnum) = 0x1;
+
+      /* e_shentsize contains the size of a section header entry */
+      REF_EHDR(32, e_shentsize) = 0x0;
+
+      /*
+       * e_shnum contains the number of entries in the section header
+       * e_shnum * e_shentsize = size of section header table
+       */
+      REF_EHDR(32, e_shnum) = 0x0;
+
+      /*
+       * e_shstrndx contains the index of the section header table that
+       * contains the section names
+       */
+      REF_EHDR(32, e_shnum) = 0x0;
+
+      break;
+
+  }
+
+  return ehdr;
+
+}
+
+/*
+ * Populate the program headers with sane values
+ * Returns a pointer to a PHDR struct
+ * taken from libgolf.h
+ */
+void *populate_phdr(RawBinary *elf_ptr) {
+
+  /*
+   * All offsets are relative to the start of the program header (0x40)
+   *
+   * phdr is a pointer to either an Elf32_Phdr, or Elf64_Phdr struct.
+   */
+  void *phdr = NULL;
+  switch (elf_ptr->isa) {
+
+    case X86_64:
+    case AARCH64:
+      phdr = (&(elf_ptr->PHDR(64)));
+      break;
+    case ARM32:
+      phdr = (&(elf_ptr->PHDR(32)));
+      break;
+    default:
+      exit(1);
+
+  }
+
+  /*
+   * Depending on whether the ISA is 32- or 64-bit determines the size of
+   * many of the fields in the Progra Header. This switch case deals with it.
+   */
+  switch (elf_ptr->isa) {
+
+    // 64-Bit ISAs
+    case X86_64:
+    case AARCH64:
+      /*
+       * p_type identifies what type of segment this is
+       * PT_NULL:         0x0     // Unused
+       * PT_LOAD:         0x1     // Loadable Segment
+       * PT_DYNAMIC:      0x2     // Dynamic Linker Information
+       * PT_INTERP:       0x3     // Interpreter Information
+       * PT_NOTE:         0x4     // Auxiliary Information
+       * PT_SHLIB:        0x5     // Reserved
+       * PT_PHDR:         0x6     // Segment with Program Header
+       * PT_TLS:          0x7     // Thread Local Storage
+       */
+      REF_PHDR(64, p_type) = PT_LOAD;  // 0x1
+
+      /*
+       * p_flags defines permissions for this section
+       * PF_R:    0x4     // Read
+       * PF_W:    0x2     // Write
+       * PF_X:    0x1     // Execute
+       */
+      REF_PHDR(64, p_flags) = PF_R | PF_X;  // 0x5
+
+      /*
+       * p_offset is the offset in the file image (relative to the start
+       * of the program header) for this segment.
+       */
+      REF_PHDR(64, p_offset) = 0x0;
+
+      /*
+       * p_vaddr is the virtual address where this segment should be loaded
+       * p_paddr is for the physical address (unused by System V)
+       */
+      REF_PHDR(64, p_vaddr) = 0x400000;
+      REF_PHDR(64, p_paddr) = 0x400000;
+
+      /*
+       * p_filesz is the size of the segment in the file image
+       * p_memsz is the size of the segment in memory
+       *
+       * Note: p_filesz doesn't have to equal p_memsz
+       */
+      REF_PHDR(64, p_filesz) = elf_ptr->text.text_size;
+      REF_PHDR(64, p_memsz) = elf_ptr->text.text_size;
+
+      break;
+    // 32-Bit ISAs
+    case ARM32:
+      /*
+       * p_type identifies what type of segment this is
+       * PT_NULL:         0x0     // Unused
+       * PT_LOAD:         0x1     // Loadable Segment
+       * PT_DYNAMIC:      0x2     // Dynamic Linker Information
+       * PT_INTERP:       0x3     // Interpreter Information
+       * PT_NOTE:         0x4     // Auxiliary Information
+       * PT_SHLIB:        0x5     // Reserved
+       * PT_PHDR:         0x6     // Segment with Program Header
+       * PT_TLS:          0x7     // Thread Local Storage
+       */
+      REF_PHDR(32, p_type) = PT_LOAD;  // 0x1
+
+      /*
+       * p_flags defines permissions for this section
+       * PF_R:    0x4     // Read
+       * PF_W:    0x2     // Write
+       * PF_X:    0x1     // Execute
+       */
+      REF_PHDR(32, p_flags) = PF_R | PF_X;  // 0x5
+
+      /*
+       * p_offset is the offset in the file image (relative to the start
+       * of the program header) for this segment.
+       */
+      REF_PHDR(32, p_offset) = 0x0;
+
+      /*
+       * p_vaddr is the virtual address where this segment should be loaded
+       * p_paddr is for the physical address (unused by System V)
+       */
+      REF_PHDR(32, p_vaddr) = 0x10000;
+      REF_PHDR(32, p_paddr) = 0x10000;
+
+      /*
+       * p_filesz is the size of the segment in the file image
+       * p_memsz is the size of the segment in memory
+       *
+       * Note: p_filesz doesn't have to equal p_memsz
+       */
+      REF_PHDR(32, p_filesz) = elf_ptr->text.text_size;
+      REF_PHDR(32, p_memsz) = elf_ptr->text.text_size;
+
+      break;
+    default:
+      exit(1);
+
+  }
+
+  /*
+   * p_align is the memory alignment
+   *
+   * Note: p_vaddr = p_offset % p_align
+   */
+  switch (elf_ptr->isa) {
+
+    case X86_64:
+      REF_PHDR(64, p_align) = 0x400000;
+      break;
+    case ARM32:
+      REF_PHDR(32, p_align) = 0x10000;
+      break;
+    case AARCH64:
+      REF_PHDR(64, p_align) = 0x400000;
+      break;
+
+  }
+
+  return phdr;
+
+}
+
+/*
+ * e_entry depends on p_vaddr, so has to be set after populate_ehdr()
+ * and populate_phdr() have been called.
+ * taken from libgolf.h
+ */
+int set_entry_point(RawBinary *elf_ptr) {
+
+  /*
+   * Once the whole ELF file is copied into memory, control is handed to
+   * e_entry. Relative to the process's virtual memory address, the .text
+   * segment will be located immediately after the ELF and program header.
+   *
+   * ehdr and phdr are pointers to the ELF and Program headers respectively.
+   * The switch case casts and assigns them to the correct fields of the ELF
+   * struct, then sets ehdr->e_entry.
+   */
+  void *ehdr, *phdr;
+
+  switch (elf_ptr->isa) {
+
+    case X86_64:
+    case AARCH64:
+      ehdr = GET_EHDR(64);
+      phdr = GET_PHDR(64);
+      REF_EHDR(64, e_entry) = REF_PHDR(64, p_vaddr) + ehdr_size + phdr_size;
+      break;
+    case ARM32:
+      ehdr = GET_EHDR(32);
+      phdr = GET_PHDR(32);
+      REF_EHDR(32, e_entry) = REF_PHDR(32, p_vaddr) + ehdr_size + phdr_size;
+      break;
+    default:
+      exit(1);
+
+  }
+
+  return 0;
+
+}
+
+typedef struct my_mutator {
+
+  afl_state_t *afl;
+  size_t       trim_size_current;
+  int          trimmming_steps;
+  int          cur_step;
+  u8          *mutated_out, *post_process_buf, *trim_buf;
+
+} my_mutator_t;
+
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
+
+  srand(seed);  // needed also by surgical_havoc_mutate()
+  my_mutator_t *data = calloc(1, sizeof(my_mutator_t));
+  if (!data) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  }
+
+  if ((data->mutated_out = (u8 *)malloc(MAX_FILE)) == NULL) {
+
+    perror("afl_custom_init malloc");
+    return NULL;
+
+  }
+
+  if ((data->post_process_buf = (u8 *)malloc(MAX_FILE)) == NULL) {
+
+    perror("afl_custom_init malloc");
+    return NULL;
+
+  }
+
+  if ((data->trim_buf = (u8 *)malloc(MAX_FILE)) == NULL) {
+
+    perror("afl_custom_init malloc");
+    return NULL;
+
+  }
+
+  data->afl = afl;
+  return data;
+
+}
+
+size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *in_buf, size_t buf_size,
+                       u8 **out_buf, uint8_t *add_buf,
+                       size_t add_buf_size,  // add_buf can be NULL
+                       size_t max_size) {
+
+  RawBinary  elf_obj;
+  RawBinary *elf = &elf_obj;
+  elf->isa = 62;
+  Elf64_Ehdr *ehdr;
+  Elf64_Phdr *phdr;
+  copy_text_segment(elf, buf, sizeof(buf));
+  ehdr = populate_ehdr(elf);
+  phdr = populate_phdr(elf);
+  set_entry_point(elf);
+
+  size_t mutated_size = ehdr_size + phdr_size + elf->text.text_size;
+  int    pos = 0;
+  // example fields
+  ehdr->e_ident[EI_CLASS] = (uint8_t *)(in_buf + pos++);
+  ehdr->e_ident[EI_DATA] = (uint8_t *)(in_buf + pos++);
+  ehdr->e_ident[EI_VERSION] = (uint8_t *)(in_buf + pos++);
+  ehdr->e_ident[EI_OSABI] = (uint8_t *)(in_buf + pos++);
+  for (int i = 0x8; i < 0x10; ++i) {
+
+    (ehdr->e_ident)[i] = (uint8_t *)(in_buf + pos++);
+
+  }
+
+  ehdr->e_version = (uint32_t *)(in_buf + pos);
+  pos += 4;
+  // sections headers
+  ehdr->e_shoff = (uint64_t *)(in_buf + pos);
+  pos += 8;
+  ehdr->e_shentsize = (uint16_t *)(in_buf + pos);
+  pos += 2;
+  ehdr->e_shnum = (uint16_t *)(in_buf + pos);
+  pos += 2;
+  ehdr->e_shstrndx = (uint16_t *)(in_buf + pos);
+  pos += 2;
+  ehdr->e_flags = (uint32_t *)(in_buf + pos);
+  pos += 4;
+  // physical addr
+  phdr->p_paddr = (uint64_t *)(in_buf + pos);
+  pos += 8;
+  phdr->p_align = (uint64_t *)(in_buf + pos);
+  pos += 8;
+
+  /* mimic GEN_ELF()
+   * Write:
+   * - ELF Header
+   * - Program Header
+   * - Text Segment
+   */
+  memcpy(data->mutated_out, ehdr, ehdr_size);
+  memcpy(data->mutated_out + ehdr_size, phdr, phdr_size);
+  memcpy(data->mutated_out + ehdr_size + phdr_size, elf->text.text_segment,
+         elf->text.text_size);
+
+  *out_buf = data->mutated_out;
+  return mutated_size;
+
+}
+
+void afl_custom_deinit(my_mutator_t *data) {
+
+  free(data->post_process_buf);
+  free(data->mutated_out);
+  free(data->trim_buf);
+  free(data);
+
+}
+

custom_mutators/examples/example.c

@@ -6,8 +6,8 @@
              Dominik Maier <mail@dmnk.co>
 */
 
-// You need to use -I /path/to/AFLplusplus/include
-#include "custom_mutator_helpers.h"
+// You need to use -I/path/to/AFLplusplus/include -I.
+#include "afl-fuzz.h"
 
 #include <stdint.h>
 #include <stdlib.h>
@@ -26,19 +26,14 @@ static const char *commands[] = {
 
 typedef struct my_mutator {
 
-  afl_t *afl;
+  afl_state_t *afl;
 
   // any additional data here!
   size_t trim_size_current;
   int    trimmming_steps;
   int    cur_step;
 
-  // Reused buffers:
-  BUF_VAR(u8, fuzz);
-  BUF_VAR(u8, data);
-  BUF_VAR(u8, havoc);
-  BUF_VAR(u8, trim);
-  BUF_VAR(u8, post_process);
+  u8 *mutated_out, *post_process_buf, *trim_buf;
 
 } my_mutator_t;
 
@@ -53,7 +48,7 @@ typedef struct my_mutator {
  *         There may be multiple instances of this mutator in one afl-fuzz run!
  *         Return NULL on error.
  */
-my_mutator_t *afl_custom_init(afl_t *afl, unsigned int seed) {
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
 
   srand(seed);  // needed also by surgical_havoc_mutate()
 
@@ -65,6 +60,27 @@ my_mutator_t *afl_custom_init(afl_t *afl, unsigned int seed) {
 
   }
 
+  if ((data->mutated_out = (u8 *)malloc(MAX_FILE)) == NULL) {
+
+    perror("afl_custom_init malloc");
+    return NULL;
+
+  }
+
+  if ((data->post_process_buf = (u8 *)malloc(MAX_FILE)) == NULL) {
+
+    perror("afl_custom_init malloc");
+    return NULL;
+
+  }
+
+  if ((data->trim_buf = (u8 *)malloc(MAX_FILE)) == NULL) {
+
+    perror("afl_custom_init malloc");
+    return NULL;
+
+  }
+
   data->afl = afl;
 
   return data;
@@ -96,29 +112,14 @@ size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
   // the fuzzer
   size_t mutated_size = DATA_SIZE <= max_size ? DATA_SIZE : max_size;
 
-  // maybe_grow is optimized to be quick for reused buffers.
-  u8 *mutated_out = maybe_grow(BUF_PARAMS(data, fuzz), mutated_size);
-  if (!mutated_out) {
-
-    *out_buf = NULL;
-    perror("custom mutator allocation (maybe_grow)");
-    return 0;            /* afl-fuzz will very likely error out after this. */
-
-  }
+  memcpy(data->mutated_out, buf, buf_size);
 
   // Randomly select a command string to add as a header to the packet
-  memcpy(mutated_out, commands[rand() % 3], 3);
+  memcpy(data->mutated_out, commands[rand() % 3], 3);
 
-  // Mutate the payload of the packet
-  int i;
-  for (i = 0; i < 8; ++i) {
+  if (mutated_size > max_size) { mutated_size = max_size; }
 
-    // Randomly perform one of the (no len modification) havoc mutations
-    surgical_havoc_mutate(mutated_out, 3, mutated_size);
-
-  }
-
-  *out_buf = mutated_out;
+  *out_buf = data->mutated_out;
   return mutated_size;
 
 }
@@ -142,24 +143,16 @@ size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
 size_t afl_custom_post_process(my_mutator_t *data, uint8_t *buf,
                                size_t buf_size, uint8_t **out_buf) {
 
-  uint8_t *post_process_buf =
-      maybe_grow(BUF_PARAMS(data, post_process), buf_size + 5);
-  if (!post_process_buf) {
+  if (buf_size + 5 > MAX_FILE) { buf_size = MAX_FILE - 5; }
 
-    perror("custom mutator realloc failed.");
-    *out_buf = NULL;
-    return 0;
+  memcpy(data->post_process_buf + 5, buf, buf_size);
+  data->post_process_buf[0] = 'A';
+  data->post_process_buf[1] = 'F';
+  data->post_process_buf[2] = 'L';
+  data->post_process_buf[3] = '+';
+  data->post_process_buf[4] = '+';
 
-  }
-
-  memcpy(post_process_buf + 5, buf, buf_size);
-  post_process_buf[0] = 'A';
-  post_process_buf[1] = 'F';
-  post_process_buf[2] = 'L';
-  post_process_buf[3] = '+';
-  post_process_buf[4] = '+';
-
-  *out_buf = post_process_buf;
+  *out_buf = data->post_process_buf;
 
   return buf_size + 5;
 
@@ -195,13 +188,6 @@ int32_t afl_custom_init_trim(my_mutator_t *data, uint8_t *buf,
 
   data->cur_step = 0;
 
-  if (!maybe_grow(BUF_PARAMS(data, trim), buf_size)) {
-
-    perror("init_trim grow");
-    return -1;
-
-  }
-
   memcpy(data->trim_buf, buf, buf_size);
 
   data->trim_size_current = buf_size;
@@ -282,27 +268,11 @@ int32_t afl_custom_post_trim(my_mutator_t *data, int success) {
 size_t afl_custom_havoc_mutation(my_mutator_t *data, u8 *buf, size_t buf_size,
                                  u8 **out_buf, size_t max_size) {
 
-  if (buf_size == 0) {
+  *out_buf = buf;  // in-place mutation
 
-    *out_buf = maybe_grow(BUF_PARAMS(data, havoc), 1);
-    if (!*out_buf) {
+  if (buf_size <= sizeof(size_t)) { return buf_size; }
 
-      perror("custom havoc: maybe_grow");
-      return 0;
-
-    }
-
-    **out_buf = rand() % 256;
-    buf_size = 1;
-
-  } else {
-
-    // We reuse buf here. It's legal and faster.
-    *out_buf = buf;
-
-  }
-
-  size_t victim = rand() % buf_size;
+  size_t victim = rand() % (buf_size - sizeof(size_t));
   (*out_buf)[victim] += rand() % 10;
 
   return buf_size;
@@ -352,7 +322,7 @@ uint8_t afl_custom_queue_get(my_mutator_t *data, const uint8_t *filename) {
  * @return if the file contents was modified return 1 (True), 0 (False)
  *         otherwise
  */
-uint8_t afl_custom_queue_new_entry(my_mutator_t * data,
+uint8_t afl_custom_queue_new_entry(my_mutator_t  *data,
                                    const uint8_t *filename_new_queue,
                                    const uint8_t *filename_orig_queue) {
 
@@ -369,9 +339,7 @@ uint8_t afl_custom_queue_new_entry(my_mutator_t * data,
 void afl_custom_deinit(my_mutator_t *data) {
 
   free(data->post_process_buf);
-  free(data->havoc_buf);
-  free(data->data_buf);
-  free(data->fuzz_buf);
+  free(data->mutated_out);
   free(data->trim_buf);
   free(data);
 

custom_mutators/examples/example.py

@@ -133,6 +133,11 @@ def fuzz(buf, add_buf, max_size):
 #     @return: The buffer containing the test case after
 #     '''
 #     return buf
+# def post_run():
+#     '''
+#     Called after each time the execution of the target program by AFL++
+#     '''
+#     pass
 #
 # def havoc_mutation(buf, max_size):
 #     '''

custom_mutators/examples/post_library_gif.so.c

@@ -45,9 +45,8 @@
    1) If you don't want to modify the test case, simply set `*out_buf = in_buf`
       and return the original `len`.
 
-   NOTE: the following is currently NOT true, we abort in this case!
    2) If you want to skip this test case altogether and have AFL generate a
-      new one, return 0 or set `*out_buf = NULL`.
+      new one, return 0.
       Use this sparingly - it's faster than running the target program
       with patently useless inputs, but still wastes CPU time.
 
@@ -59,8 +58,6 @@
       Note that the buffer will *not* be freed for you. To avoid memory leaks,
       you need to free it or reuse it on subsequent calls (as shown below).
 
-      *** Feel free to reuse the original 'in_buf' BUFFER and return it. ***
-
     Alright. The example below shows a simple postprocessor that tries to make
     sure that all input files start with "GIF89a".
 
@@ -72,6 +69,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include "afl-fuzz.h"
 
 /* Header that must be present at the beginning of every test case: */
 
@@ -79,8 +77,7 @@
 
 typedef struct post_state {
 
-  unsigned char *buf;
-  size_t         size;
+  size_t size;
 
 } post_state_t;
 
@@ -94,15 +91,6 @@ void *afl_custom_init(void *afl) {
 
   }
 
-  state->buf = calloc(sizeof(unsigned char), 4096);
-  if (!state->buf) {
-
-    free(state);
-    perror("calloc");
-    return NULL;
-
-  }
-
   return state;
 
 }
@@ -112,6 +100,10 @@ void *afl_custom_init(void *afl) {
 size_t afl_custom_post_process(post_state_t *data, unsigned char *in_buf,
                                unsigned int len, unsigned char **out_buf) {
 
+  /* we do in-place modification as we do not increase the size */
+
+  *out_buf = in_buf;
+
   /* Skip execution altogether for buffers shorter than 6 bytes (just to
      show how it's done). We can trust len to be sane. */
 
@@ -119,32 +111,7 @@ size_t afl_custom_post_process(post_state_t *data, unsigned char *in_buf,
 
   /* Do nothing for buffers that already start with the expected header. */
 
-  if (!memcmp(in_buf, HEADER, strlen(HEADER))) {
-
-    *out_buf = in_buf;
-    return len;
-
-  }
-
-  /* Allocate memory for new buffer, reusing previous allocation if
-     possible. */
-
-  *out_buf = realloc(data->buf, len);
-
-  /* If we're out of memory, the most graceful thing to do is to return the
-     original buffer and give up on modifying it. Let AFL handle OOM on its
-     own later on. */
-
-  if (!*out_buf) {
-
-    *out_buf = in_buf;
-    return len;
-
-  }
-
-  /* Copy the original data to the new location. */
-
-  memcpy(*out_buf, in_buf, len);
+  if (!memcmp(in_buf, HEADER, strlen(HEADER))) { return len; }
 
   /* Insert the new header. */
 
@@ -159,7 +126,6 @@ size_t afl_custom_post_process(post_state_t *data, unsigned char *in_buf,
 /* Gets called afterwards */
 void afl_custom_deinit(post_state_t *data) {
 
-  free(data->buf);
   free(data);
 
 }

custom_mutators/examples/post_library_png.so.c

@@ -29,8 +29,8 @@
 #include <stdint.h>
 #include <string.h>
 #include <zlib.h>
-
 #include <arpa/inet.h>
+#include "afl-fuzz.h"
 
 /* A macro to round an integer up to 4 kB. */
 
@@ -53,7 +53,7 @@ void *afl_custom_init(void *afl) {
 
   }
 
-  state->buf = calloc(sizeof(unsigned char), 4096);
+  state->buf = calloc(sizeof(unsigned char), MAX_FILE);
   if (!state->buf) {
 
     free(state);
@@ -70,9 +70,6 @@ size_t afl_custom_post_process(post_state_t *data, const unsigned char *in_buf,
                                unsigned int          len,
                                const unsigned char **out_buf) {
 
-  unsigned char *new_buf = (unsigned char *)in_buf;
-  unsigned int   pos = 8;
-
   /* Don't do anything if there's not enough room for the PNG header
      (8 bytes). */
 
@@ -83,6 +80,8 @@ size_t afl_custom_post_process(post_state_t *data, const unsigned char *in_buf,
 
   }
 
+  unsigned int pos = 8;
+
   /* Minimum size of a zero-length PNG chunk is 12 bytes; if we
      don't have that, we can bail out. */
 
@@ -111,34 +110,7 @@ size_t afl_custom_post_process(post_state_t *data, const unsigned char *in_buf,
 
     if (real_cksum != file_cksum) {
 
-      /* First modification? Make a copy of the input buffer. Round size
-         up to 4 kB to minimize the number of reallocs needed. */
-
-      if (new_buf == in_buf) {
-
-        if (len <= data->size) {
-
-          new_buf = data->buf;
-
-        } else {
-
-          new_buf = realloc(data->buf, UP4K(len));
-          if (!new_buf) {
-
-            *out_buf = in_buf;
-            return len;
-
-          }
-
-          data->buf = new_buf;
-          data->size = UP4K(len);
-          memcpy(new_buf, in_buf, len);
-
-        }
-
-      }
-
-      *(uint32_t *)(new_buf + pos + 8 + chunk_len) = real_cksum;
+      *(uint32_t *)(data->buf + pos + 8 + chunk_len) = real_cksum;
 
     }
 
@@ -148,7 +120,7 @@ size_t afl_custom_post_process(post_state_t *data, const unsigned char *in_buf,
 
   }
 
-  *out_buf = new_buf;
+  *out_buf = data->buf;
   return len;
 
 }

custom_mutators/examples/simple_example.c

@@ -1,6 +1,6 @@
 // This simple example just creates random buffer <= 100 filled with 'A'
 // needs -I /path/to/AFLplusplus/include
-#include "custom_mutator_helpers.h"
+#include "afl-fuzz.h"
 
 #include <stdint.h>
 #include <stdlib.h>
@@ -13,14 +13,14 @@
 
 typedef struct my_mutator {
 
-  afl_t *afl;
+  afl_state_t *afl;
 
   // Reused buffers:
-  BUF_VAR(u8, fuzz);
+  u8 *fuzz_buf;
 
 } my_mutator_t;
 
-my_mutator_t *afl_custom_init(afl_t *afl, unsigned int seed) {
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
 
   srand(seed);
   my_mutator_t *data = calloc(1, sizeof(my_mutator_t));
@@ -31,6 +31,14 @@ my_mutator_t *afl_custom_init(afl_t *afl, unsigned int seed) {
 
   }
 
+  data->fuzz_buf = (u8 *)malloc(MAX_FILE);
+  if (!data->fuzz_buf) {
+
+    perror("afl_custom_init malloc");
+    return NULL;
+
+  }
+
   data->afl = afl;
 
   return data;
@@ -44,18 +52,10 @@ size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
 
   int size = (rand() % 100) + 1;
   if (size > max_size) size = max_size;
-  u8 *mutated_out = maybe_grow(BUF_PARAMS(data, fuzz), size);
-  if (!mutated_out) {
 
-    *out_buf = NULL;
-    perror("custom mutator allocation (maybe_grow)");
-    return 0;            /* afl-fuzz will very likely error out after this. */
+  memset(data->fuzz_buf, _FIXED_CHAR, size);
 
-  }
-
-  memset(mutated_out, _FIXED_CHAR, size);
-
-  *out_buf = mutated_out;
+  *out_buf = data->fuzz_buf;
   return size;
 
 }

custom_mutators/gramatron/build_gramatron_mutator.sh

@@ -11,7 +11,7 @@
 # Adapted for AFLplusplus by Dominik Maier <mail@dmnk.co>
 #
 # Copyright 2017 Battelle Memorial Institute. All rights reserved.
-# Copyright 2019-2020 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2023 AFLplusplus Project. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -115,9 +115,9 @@ if [ $? -eq 0 ]; then
   git submodule update ./json-c 2>/dev/null # ignore errors
 else
   echo "[*] cloning json-c"
-  test -d json-c || {
+  test -d json-c/.git || {
     CNT=1
-    while [ '!' -d json-c -a "$CNT" -lt 4 ]; do
+    while [ '!' -d json-c/.git -a "$CNT" -lt 4 ]; do
       echo "Trying to clone json-c (attempt $CNT/3)"
       git clone "$JSONC_REPO" 
       CNT=`expr "$CNT" + 1`
@@ -125,7 +125,7 @@ else
   }
 fi
 
-test -d json-c || { echo "[-] not checked out, please install git or check your internet connection." ; exit 1 ; }
+test -e json-c/.git || { echo "[-] not checked out, please install git or check your internet connection." ; exit 1 ; }
 echo "[+] Got json-c."
 
 test -e json-c/.libs/libjson-c.a || {

custom_mutators/grammar_mutator/GRAMMAR_VERSION

@@ -1 +1 @@
-eedf07d
+95a6857

custom_mutators/grammar_mutator/build_grammar_mutator.sh

@@ -14,7 +14,7 @@
 #                                <andreafioraldi@gmail.com>
 #
 # Copyright 2017 Battelle Memorial Institute. All rights reserved.
-# Copyright 2019-2020 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2023 AFLplusplus Project. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -109,9 +109,9 @@ if [ $? -eq 0 ]; then
   git submodule update ./grammar_mutator 2>/dev/null # ignore errors
 else
   echo "[*] cloning grammar mutator"
-  test -d grammar_mutator || {
+  test -d grammar_mutator/.git || {
     CNT=1
-    while [ '!' -d grammar_mutator -a "$CNT" -lt 4 ]; do
+    while [ '!' -d grammar_mutator/.git -a "$CNT" -lt 4 ]; do
       echo "Trying to clone grammar_mutator (attempt $CNT/3)"
       git clone "$GRAMMAR_REPO" 
       CNT=`expr "$CNT" + 1`
@@ -119,15 +119,16 @@ else
   }
 fi
 
-test -d grammar_mutator || { echo "[-] not checked out, please install git or check your internet connection." ; exit 1 ; }
+test -e grammar_mutator/.git || { echo "[-] not checked out, please install git or check your internet connection." ; exit 1 ; }
 echo "[+] Got grammar mutator."
 
 cd "grammar_mutator" || exit 1
 echo "[*] Checking out $GRAMMAR_VERSION"
+git pull >/dev/null 2>&1
 sh -c 'git stash && git stash drop' 1>/dev/null 2>/dev/null
 git checkout "$GRAMMAR_VERSION" || exit 1
 echo "[*] Downloading antlr..."
-wget -c https://www.antlr.org/download/antlr-4.8-complete.jar
+wget -q https://www.antlr.org/download/antlr-4.8-complete.jar
 cd ..
 
 echo

custom_mutators/honggfuzz/custom_mutator_helpers.h

@@ -1,22 +0,0 @@
-#ifndef CUSTOM_MUTATOR_HELPERS
-#define CUSTOM_MUTATOR_HELPERS
-
-#include "config.h"
-#include "types.h"
-#include "afl-fuzz.h"
-#include <stdlib.h>
-
-#define INITIAL_GROWTH_SIZE (64)
-
-/* Use in a struct: creates a name_buf and a name_size variable. */
-#define BUF_VAR(type, name) \
-  type * name##_buf;        \
-  size_t name##_size;
-/* this filles in `&structptr->something_buf, &structptr->something_size`. */
-#define BUF_PARAMS(struct, name) \
-  (void **)&struct->name##_buf, &struct->name##_size
-
-#undef INITIAL_GROWTH_SIZE
-
-#endif
-

custom_mutators/honggfuzz/honggfuzz.c

@@ -3,14 +3,14 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "custom_mutator_helpers.h"
+#include "afl-fuzz.h"
 #include "mangle.h"
 
 #define NUMBER_OF_MUTATIONS 5
 
-uint8_t *         queue_input;
+uint8_t          *queue_input;
 size_t            queue_input_size;
-afl_state_t *     afl_struct;
+afl_state_t      *afl_struct;
 run_t             run;
 honggfuzz_t       global;
 struct _dynfile_t dynfile;
@@ -18,8 +18,8 @@ struct _dynfile_t dynfile;
 typedef struct my_mutator {
 
   afl_state_t *afl;
-  run_t *      run;
-  u8 *         mutator_buf;
+  run_t       *run;
+  u8          *mutator_buf;
   unsigned int seed;
   unsigned int extras_cnt, a_extras_cnt;
 
@@ -65,9 +65,9 @@ my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
 /* When a new queue entry is added we check if there are new dictionary
    entries to add to honggfuzz structure */
 
-uint8_t afl_custom_queue_new_entry(my_mutator_t * data,
-                                   const uint8_t *filename_new_queue,
-                                   const uint8_t *filename_orig_queue) {
+void afl_custom_queue_new_entry(my_mutator_t  *data,
+                                const uint8_t *filename_new_queue,
+                                const uint8_t *filename_orig_queue) {
 
   if (run.global->mutate.dictionaryCnt >= 1024) return;
 
@@ -97,7 +97,7 @@ uint8_t afl_custom_queue_new_entry(my_mutator_t * data,
 
   }
 
-  return 0;
+  return;
 
 }
 

custom_mutators/libafl_base/.gitignore

@@ -0,0 +1,10 @@
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk

custom_mutators/libafl_base/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "libafl_base"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+libafl = { git = "https://github.com/AFLplusplus/LibAFL.git", rev = "266677bb88abe75165430f34e7de897c35560504" }
+custom_mutator = { path = "../rust/custom_mutator", features = ["afl_internals"] }
+serde = { version = "1.0", default-features = false, features = ["alloc"] } # serialization lib
+
+[lib]
+crate-type = ["cdylib"]

custom_mutators/libafl_base/Makefile

@@ -0,0 +1,9 @@
+all: target/release/liblibafl_base.so
+	cp target/release/liblibafl_base.so libafl_base.so
+
+target/release/liblibafl_base.so: src/lib.rs
+	cargo build --release
+
+clean:
+	cargo clean
+	rm -f libafl_base.so

custom_mutators/libafl_base/README.md

@@ -0,0 +1,11 @@
+# libafl basic havoc + token mutator
+
+This uses the [libafl](https://github.com/AFLplusplus/libafl) StdScheduledMutator with `havoc_mutations` and `token_mutations`.
+
+Make sure to have [cargo installed](https://rustup.rs/) and just type `make` to build.
+
+Run with:
+
+```
+AFL_CUSTOM_MUTATOR_LIBRARY=custom_mutators/libafl_base/libafl_base.so AFL_CUSTOM_MUTATOR_ONLY=1 afl-fuzz ...
+```

custom_mutators/libafl_base/src/lib.rs

@@ -0,0 +1,252 @@
+#![cfg(unix)]
+
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
+use std::{
+    cell::{RefCell, UnsafeCell},
+    collections::HashMap,
+    ffi::CStr,
+};
+
+use custom_mutator::{afl_state, export_mutator, CustomMutator};
+
+use libafl::{
+    bolts::{rands::StdRand, serdeany::SerdeAnyMap, tuples::Merge},
+    corpus::{Corpus, Testcase},
+    inputs::{BytesInput, HasBytesVec},
+    mutators::{
+        scheduled::{havoc_mutations, tokens_mutations, StdScheduledMutator, Tokens},
+        Mutator,
+    },
+    prelude::UsesInput,
+    state::{HasCorpus, HasMaxSize, HasMetadata, HasRand, State, UsesState},
+    Error,
+};
+
+#[allow(clippy::identity_op)]
+const MAX_FILE: usize = 1 * 1024 * 1024;
+
+static mut AFL: Option<&'static afl_state> = None;
+static mut CURRENT_ENTRY: Option<usize> = None;
+
+fn afl() -> &'static afl_state {
+    unsafe { AFL.unwrap() }
+}
+
+#[derive(Default, Debug)]
+pub struct AFLCorpus {
+    entries: UnsafeCell<HashMap<usize, RefCell<Testcase<BytesInput>>>>,
+}
+
+impl Clone for AFLCorpus {
+    fn clone(&self) -> Self {
+        unsafe {
+            Self {
+                entries: UnsafeCell::new(self.entries.get().as_ref().unwrap().clone()),
+            }
+        }
+    }
+}
+
+impl Serialize for AFLCorpus {
+    fn serialize<S>(&self, _serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        unimplemented!();
+    }
+}
+
+impl<'de> Deserialize<'de> for AFLCorpus {
+    fn deserialize<D>(_deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        unimplemented!();
+    }
+}
+
+impl UsesState for AFLCorpus {
+    type State = AFLState;
+}
+
+impl Corpus for AFLCorpus {
+    #[inline]
+    fn count(&self) -> usize {
+        afl().queued_items as usize
+    }
+
+    #[inline]
+    fn add(&mut self, _testcase: Testcase<BytesInput>) -> Result<usize, Error> {
+        unimplemented!();
+    }
+
+    #[inline]
+    fn replace(
+        &mut self,
+        _idx: usize,
+        _testcase: Testcase<BytesInput>,
+    ) -> Result<Testcase<Self::Input>, Error> {
+        unimplemented!();
+    }
+
+    #[inline]
+    fn remove(&mut self, _idx: usize) -> Result<Option<Testcase<BytesInput>>, Error> {
+        unimplemented!();
+    }
+
+    #[inline]
+    fn get(&self, idx: usize) -> Result<&RefCell<Testcase<BytesInput>>, Error> {
+        unsafe {
+            let entries = self.entries.get().as_mut().unwrap();
+            entries.entry(idx).or_insert_with(|| {
+                let queue_buf = std::slice::from_raw_parts_mut(afl().queue_buf, self.count());
+                let entry = queue_buf[idx].as_mut().unwrap();
+                let fname = CStr::from_ptr((entry.fname.cast::<i8>()).as_ref().unwrap())
+                    .to_str()
+                    .unwrap()
+                    .to_owned();
+                let mut testcase = Testcase::with_filename(BytesInput::new(vec![]), fname);
+                *testcase.input_mut() = None;
+                RefCell::new(testcase)
+            });
+            Ok(&self.entries.get().as_ref().unwrap()[&idx])
+        }
+    }
+
+    #[inline]
+    fn current(&self) -> &Option<usize> {
+        unsafe {
+            CURRENT_ENTRY = Some(afl().current_entry as usize);
+            &CURRENT_ENTRY
+        }
+    }
+
+    #[inline]
+    fn current_mut(&mut self) -> &mut Option<usize> {
+        unimplemented!();
+    }
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug)]
+pub struct AFLState {
+    rand: StdRand,
+    corpus: AFLCorpus,
+    metadata: SerdeAnyMap,
+    max_size: usize,
+}
+
+impl AFLState {
+    #[must_use]
+    pub fn new(seed: u32) -> Self {
+        Self {
+            rand: StdRand::with_seed(u64::from(seed)),
+            corpus: AFLCorpus::default(),
+            metadata: SerdeAnyMap::new(),
+            max_size: MAX_FILE,
+        }
+    }
+}
+
+impl State for AFLState {}
+
+impl HasRand for AFLState {
+    type Rand = StdRand;
+
+    #[inline]
+    fn rand(&self) -> &Self::Rand {
+        &self.rand
+    }
+
+    #[inline]
+    fn rand_mut(&mut self) -> &mut Self::Rand {
+        &mut self.rand
+    }
+}
+
+impl UsesInput for AFLState {
+    type Input = BytesInput;
+}
+
+impl HasCorpus for AFLState {
+    type Corpus = AFLCorpus;
+
+    #[inline]
+    fn corpus(&self) -> &Self::Corpus {
+        &self.corpus
+    }
+
+    #[inline]
+    fn corpus_mut(&mut self) -> &mut Self::Corpus {
+        &mut self.corpus
+    }
+}
+
+impl HasMetadata for AFLState {
+    #[inline]
+    fn metadata(&self) -> &SerdeAnyMap {
+        &self.metadata
+    }
+
+    #[inline]
+    fn metadata_mut(&mut self) -> &mut SerdeAnyMap {
+        &mut self.metadata
+    }
+}
+
+impl HasMaxSize for AFLState {
+    fn max_size(&self) -> usize {
+        self.max_size
+    }
+
+    fn set_max_size(&mut self, max_size: usize) {
+        self.max_size = max_size;
+    }
+}
+
+struct LibAFLBaseCustomMutator {
+    state: AFLState,
+    input: BytesInput,
+}
+
+impl CustomMutator for LibAFLBaseCustomMutator {
+    type Error = libafl::Error;
+
+    fn init(afl: &'static afl_state, seed: u32) -> Result<Self, Self::Error> {
+        unsafe {
+            AFL = Some(afl);
+            let mut state = AFLState::new(seed);
+            let extras = std::slice::from_raw_parts(afl.extras, afl.extras_cnt as usize);
+            let mut tokens = vec![];
+            for extra in extras {
+                let data = std::slice::from_raw_parts(extra.data, extra.len as usize);
+                tokens.push(data.to_vec());
+            }
+            if !tokens.is_empty() {
+                state.add_metadata(Tokens::from(tokens));
+            }
+            Ok(Self {
+                state,
+                input: BytesInput::new(vec![]),
+            })
+        }
+    }
+
+    fn fuzz<'b, 's: 'b>(
+        &'s mut self,
+        buffer: &'b mut [u8],
+        _add_buff: Option<&[u8]>,
+        max_size: usize,
+    ) -> Result<Option<&'b [u8]>, Self::Error> {
+        self.state.set_max_size(max_size);
+
+        // TODO avoid copy
+        self.input.bytes_mut().clear();
+        self.input.bytes_mut().extend_from_slice(buffer);
+
+        let mut mutator = StdScheduledMutator::new(havoc_mutations().merge(tokens_mutations()));
+        mutator.mutate(&mut self.state, &mut self.input, 0)?;
+        Ok(Some(self.input.bytes()))
+    }
+}
+
+export_mutator!(LibAFLBaseCustomMutator);

custom_mutators/libprotobuf-mutator-example/lpm_aflpp_custom_mutator_input.cc

@@ -100,8 +100,8 @@ extern "C" size_t afl_custom_fuzz(MyMutator *mutator, // return value from afl_c
     // Copy to a new buffer ( mutated_out )
     size_t mutated_size = s.size() <= max_size ? s.size() : max_size; // check if raw data's size is larger than max_size
 
-    delete mutator->mutated_out;
-    mutator->mutated_out = new uint8_t[mutated_size+1];
+    delete[] mutator->mutated_out;
+    mutator->mutated_out = new uint8_t[mutated_size];
     memcpy(mutator->mutated_out, s.c_str(), mutated_size); // copy the mutated data
     // Assign the mutated data and return mutated_size
     *out_buf = mutator->mutated_out;

custom_mutators/libprotobuf-mutator-example/lpm_aflpp_custom_mutator_input.h

@@ -4,4 +4,7 @@
 class MyMutator : public protobuf_mutator::Mutator {
 public:
     uint8_t *mutated_out = nullptr; 
+    ~MyMutator() {
+        delete[] mutated_out;
+    }
 };

custom_mutators/radamsa/custom_mutator_helpers.h

@@ -1 +0,0 @@
-../examples/custom_mutator_helpers.h

custom_mutators/radamsa/libradamsa.c

@@ -4473,6 +4473,10 @@ static word prim_sys(word op, word a, word b, word c) {
         FD_CLOEXEC,
         F_DUPFD,
         F_DUPFD_CLOEXEC,
+#if defined(F_DUP2FD)
+        F_DUP2FD,
+        F_DUP2FD_CLOEXEC,
+#endif
         F_GETFD,
         F_SETFD,
         F_GETFL,

custom_mutators/radamsa/radamsa-mutator.c

@@ -1,6 +1,5 @@
 // This simple example just creates random buffer <= 100 filled with 'A'
 // needs -I /path/to/AFLplusplus/include
-//#include "custom_mutator_helpers.h"
 
 #include <stdint.h>
 #include <stdlib.h>
@@ -8,19 +7,17 @@
 #include <stdio.h>
 
 #include "radamsa.h"
-#include "custom_mutator_helpers.h"
+#include "afl-fuzz.h"
 
 typedef struct my_mutator {
 
-  afl_t *afl;
-
-  u8 *mutator_buf;
-
+  afl_state_t *afl;
+  u8          *mutator_buf;
   unsigned int seed;
 
 } my_mutator_t;
 
-my_mutator_t *afl_custom_init(afl_t *afl, unsigned int seed) {
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
 
   srand(seed);
   my_mutator_t *data = calloc(1, sizeof(my_mutator_t));

custom_mutators/rust/custom_mutator-sys/Cargo.toml

@@ -1,12 +1,12 @@
 [package]
 name = "custom_mutator-sys"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Julius Hohnerlein <julihoh@users.noreply.github.com>"]
-edition = "2018"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 
 [build-dependencies]
-bindgen = "0.56"
+bindgen = "0.63"

custom_mutators/rust/custom_mutator-sys/build.rs

@@ -15,8 +15,8 @@ fn main() {
         // The input header we would like to generate
         // bindings for.
         .header("wrapper.h")
-        .whitelist_type("afl_state_t")
-        .blacklist_type(r"u\d+")
+        .allowlist_type("afl_state_t")
+        .blocklist_type(r"u\d+")
         .opaque_type(r"_.*")
         .opaque_type("FILE")
         .opaque_type("in_addr(_t)?")

custom_mutators/rust/custom_mutator-sys/src/lib.rs

@@ -1,5 +1,7 @@
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]
+#![allow(clippy::too_many_lines)]
+#![allow(clippy::used_underscore_binding)]
 
 include!(concat!(env!("OUT_DIR"), "/bindings.rs"));

custom_mutators/rust/custom_mutator/Cargo.toml

@@ -2,7 +2,7 @@
 name = "custom_mutator"
 version = "0.1.0"
 authors = ["Julius Hohnerlein <julihoh@users.noreply.github.com>"]
-edition = "2018"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

custom_mutators/rust/custom_mutator/src/lib.rs

@@ -20,7 +20,7 @@
 //! This binding is panic-safe in that it will prevent panics from unwinding into AFL++. Any panic will `abort` at the boundary between the custom mutator and AFL++.
 //!
 //! # Access to AFL++ internals
-//! This crate has an optional feature "afl_internals", which gives access to AFL++'s internal state.
+//! This crate has an optional feature "`afl_internals`", which gives access to AFL++'s internal state.
 //! The state is passed to [`CustomMutator::init`], when the feature is activated.
 //!
 //! _This is completely unsafe and uses automatically generated types extracted from the AFL++ source._
@@ -115,7 +115,7 @@ pub mod wrappers {
     impl<M: RawCustomMutator> FFIContext<M> {
         fn from(ptr: *mut c_void) -> ManuallyDrop<Box<Self>> {
             assert!(!ptr.is_null());
-            ManuallyDrop::new(unsafe { Box::from_raw(ptr as *mut Self) })
+            ManuallyDrop::new(unsafe { Box::from_raw(ptr.cast::<Self>()) })
         }
 
         fn into_ptr(self: Box<Self>) -> *const c_void {
@@ -141,27 +141,28 @@ pub mod wrappers {
     }
 
     /// panic handler called for every panic
-    fn panic_handler(method: &str, panic_info: Box<dyn Any + Send + 'static>) -> ! {
+    fn panic_handler(method: &str, panic_info: &Box<dyn Any + Send + 'static>) -> ! {
         use std::ops::Deref;
-        let cause = panic_info
-            .downcast_ref::<String>()
-            .map(String::deref)
-            .unwrap_or_else(|| {
+        let cause = panic_info.downcast_ref::<String>().map_or_else(
+            || {
                 panic_info
                     .downcast_ref::<&str>()
                     .copied()
                     .unwrap_or("<cause unknown>")
-            });
-        eprintln!("A panic occurred at {}: {}", method, cause);
+            },
+            String::deref,
+        );
+        eprintln!("A panic occurred at {method}: {cause}");
         abort()
     }
 
     /// Internal function used in the macro
     #[cfg(not(feature = "afl_internals"))]
+    #[must_use]
     pub fn afl_custom_init_<M: RawCustomMutator>(seed: u32) -> *const c_void {
         match catch_unwind(|| FFIContext::<M>::new(seed).into_ptr()) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_init", err),
+            Err(err) => panic_handler("afl_custom_init", &err),
         }
     }
 
@@ -176,7 +177,7 @@ pub mod wrappers {
             FFIContext::<M>::new(afl, seed).into_ptr()
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_init", err),
+            Err(err) => panic_handler("afl_custom_init", &err),
         }
     }
 
@@ -196,32 +197,27 @@ pub mod wrappers {
     ) -> usize {
         match catch_unwind(|| {
             let mut context = FFIContext::<M>::from(data);
-            if buf.is_null() {
-                panic!("null buf passed to afl_custom_fuzz")
-            }
-            if out_buf.is_null() {
-                panic!("null out_buf passed to afl_custom_fuzz")
-            }
+
+            assert!(!buf.is_null(), "null buf passed to afl_custom_fuzz");
+            assert!(!out_buf.is_null(), "null out_buf passed to afl_custom_fuzz");
+
             let buff_slice = slice::from_raw_parts_mut(buf, buf_size);
             let add_buff_slice = if add_buf.is_null() {
                 None
             } else {
                 Some(slice::from_raw_parts(add_buf, add_buf_size))
             };
-            match context.mutator.fuzz(buff_slice, add_buff_slice, max_size) {
-                Some(buffer) => {
-                    *out_buf = buffer.as_ptr();
-                    buffer.len()
-                }
-                None => {
-                    // return the input buffer with 0-length to let AFL skip this mutation attempt
-                    *out_buf = buf;
-                    0
-                }
+            if let Some(buffer) = context.mutator.fuzz(buff_slice, add_buff_slice, max_size) {
+                *out_buf = buffer.as_ptr();
+                buffer.len()
+            } else {
+                // return the input buffer with 0-length to let AFL skip this mutation attempt
+                *out_buf = buf;
+                0
             }
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_fuzz", err),
+            Err(err) => panic_handler("afl_custom_fuzz", &err),
         }
     }
 
@@ -237,9 +233,8 @@ pub mod wrappers {
     ) -> u32 {
         match catch_unwind(|| {
             let mut context = FFIContext::<M>::from(data);
-            if buf.is_null() {
-                panic!("null buf passed to afl_custom_fuzz")
-            }
+            assert!(!buf.is_null(), "null buf passed to afl_custom_fuzz");
+
             let buf_slice = slice::from_raw_parts(buf, buf_size);
             // see https://doc.rust-lang.org/nomicon/borrow-splitting.html
             let ctx = &mut **context;
@@ -247,37 +242,39 @@ pub mod wrappers {
             mutator.fuzz_count(buf_slice)
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_fuzz_count", err),
+            Err(err) => panic_handler("afl_custom_fuzz_count", &err),
         }
     }
 
     /// Internal function used in the macro
-    pub fn afl_custom_queue_new_entry_<M: RawCustomMutator>(
+    pub unsafe fn afl_custom_queue_new_entry_<M: RawCustomMutator>(
         data: *mut c_void,
         filename_new_queue: *const c_char,
         filename_orig_queue: *const c_char,
     ) -> bool {
         match catch_unwind(|| {
             let mut context = FFIContext::<M>::from(data);
-            if filename_new_queue.is_null() {
-                panic!("received null filename_new_queue in afl_custom_queue_new_entry");
-            }
+            assert!(
+                !filename_new_queue.is_null(),
+                "received null filename_new_queue in afl_custom_queue_new_entry"
+            );
+
             let filename_new_queue = Path::new(OsStr::from_bytes(
                 unsafe { CStr::from_ptr(filename_new_queue) }.to_bytes(),
             ));
-            let filename_orig_queue = if !filename_orig_queue.is_null() {
+            let filename_orig_queue = if filename_orig_queue.is_null() {
+                None
+            } else {
                 Some(Path::new(OsStr::from_bytes(
                     unsafe { CStr::from_ptr(filename_orig_queue) }.to_bytes(),
                 )))
-            } else {
-                None
             };
             context
                 .mutator
                 .queue_new_entry(filename_new_queue, filename_orig_queue)
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_queue_new_entry", err),
+            Err(err) => panic_handler("afl_custom_queue_new_entry", &err),
         }
     }
 
@@ -292,7 +289,7 @@ pub mod wrappers {
             ManuallyDrop::into_inner(FFIContext::<M>::from(data));
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_deinit", err),
+            Err(err) => panic_handler("afl_custom_deinit", &err),
         }
     }
 
@@ -306,13 +303,13 @@ pub mod wrappers {
                 buf.extend_from_slice(res.as_bytes());
                 buf.push(0);
                 // unwrapping here, as the error case should be extremely rare
-                CStr::from_bytes_with_nul(&buf).unwrap().as_ptr()
+                CStr::from_bytes_with_nul(buf).unwrap().as_ptr()
             } else {
                 null()
             }
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_introspection", err),
+            Err(err) => panic_handler("afl_custom_introspection", &err),
         }
     }
 
@@ -329,18 +326,18 @@ pub mod wrappers {
                 buf.extend_from_slice(res.as_bytes());
                 buf.push(0);
                 // unwrapping here, as the error case should be extremely rare
-                CStr::from_bytes_with_nul(&buf).unwrap().as_ptr()
+                CStr::from_bytes_with_nul(buf).unwrap().as_ptr()
             } else {
                 null()
             }
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_describe", err),
+            Err(err) => panic_handler("afl_custom_describe", &err),
         }
     }
 
     /// Internal function used in the macro
-    pub fn afl_custom_queue_get_<M: RawCustomMutator>(
+    pub unsafe fn afl_custom_queue_get_<M: RawCustomMutator>(
         data: *mut c_void,
         filename: *const c_char,
     ) -> u8 {
@@ -348,16 +345,46 @@ pub mod wrappers {
             let mut context = FFIContext::<M>::from(data);
             assert!(!filename.is_null());
 
-            context.mutator.queue_get(Path::new(OsStr::from_bytes(
+            u8::from(context.mutator.queue_get(Path::new(OsStr::from_bytes(
                 unsafe { CStr::from_ptr(filename) }.to_bytes(),
-            ))) as u8
+            ))))
         }) {
             Ok(ret) => ret,
-            Err(err) => panic_handler("afl_custom_queue_get", err),
+            Err(err) => panic_handler("afl_custom_queue_get", &err),
         }
     }
 }
 
+/// An exported macro to defined afl_custom_init meant for insternal usage
+#[cfg(feature = "afl_internals")]
+#[macro_export]
+macro_rules! _define_afl_custom_init {
+    ($mutator_type:ty) => {
+        #[no_mangle]
+        pub extern "C" fn afl_custom_init(
+            afl: ::std::option::Option<&'static $crate::afl_state>,
+            seed: ::std::os::raw::c_uint,
+        ) -> *const ::std::os::raw::c_void {
+            $crate::wrappers::afl_custom_init_::<$mutator_type>(afl, seed as u32)
+        }
+    };
+}
+
+/// An exported macro to defined `afl_custom_init` meant for internal usage
+#[cfg(not(feature = "afl_internals"))]
+#[macro_export]
+macro_rules! _define_afl_custom_init {
+    ($mutator_type:ty) => {
+        #[no_mangle]
+        pub extern "C" fn afl_custom_init(
+            _afl: *const ::std::os::raw::c_void,
+            seed: ::std::os::raw::c_uint,
+        ) -> *const ::std::os::raw::c_void {
+            $crate::wrappers::afl_custom_init_::<$mutator_type>(seed as u32)
+        }
+    };
+}
+
 /// exports the given Mutator as a custom mutator as the C interface that AFL++ expects.
 /// It is not possible to call this macro multiple times, because it would define the custom mutator symbols multiple times.
 /// # Example
@@ -381,23 +408,7 @@ pub mod wrappers {
 #[macro_export]
 macro_rules! export_mutator {
     ($mutator_type:ty) => {
-        #[cfg(feature = "afl_internals")]
-        #[no_mangle]
-        pub extern "C" fn afl_custom_init(
-            afl: ::std::option::Option<&'static $crate::afl_state>,
-            seed: ::std::os::raw::c_uint,
-        ) -> *const ::std::os::raw::c_void {
-            $crate::wrappers::afl_custom_init_::<$mutator_type>(afl, seed as u32)
-        }
-
-        #[cfg(not(feature = "afl_internals"))]
-        #[no_mangle]
-        pub extern "C" fn afl_custom_init(
-            _afl: *const ::std::os::raw::c_void,
-            seed: ::std::os::raw::c_uint,
-        ) -> *const ::std::os::raw::c_void {
-            $crate::wrappers::afl_custom_init_::<$mutator_type>(seed as u32)
-        }
+        $crate::_define_afl_custom_init!($mutator_type);
 
         #[no_mangle]
         pub unsafe extern "C" fn afl_custom_fuzz_count(
@@ -430,7 +441,7 @@ macro_rules! export_mutator {
         }
 
         #[no_mangle]
-        pub extern "C" fn afl_custom_queue_new_entry(
+        pub unsafe extern "C" fn afl_custom_queue_new_entry(
             data: *mut ::std::os::raw::c_void,
             filename_new_queue: *const ::std::os::raw::c_char,
             filename_orig_queue: *const ::std::os::raw::c_char,
@@ -443,7 +454,7 @@ macro_rules! export_mutator {
         }
 
         #[no_mangle]
-        pub extern "C" fn afl_custom_queue_get(
+        pub unsafe extern "C" fn afl_custom_queue_get(
             data: *mut ::std::os::raw::c_void,
             filename: *const ::std::os::raw::c_char,
         ) -> u8 {
@@ -506,9 +517,10 @@ mod sanity_test {
     export_mutator!(ExampleMutator);
 }
 
-#[allow(unused_variables)]
 /// A custom mutator.
 /// [`CustomMutator::handle_error`] will be called in case any method returns an [`Result::Err`].
+#[allow(unused_variables)]
+#[allow(clippy::missing_errors_doc)]
 pub trait CustomMutator {
     /// The error type. All methods must return the same error type.
     type Error: Debug;
@@ -523,7 +535,7 @@ pub trait CustomMutator {
             .map(|v| !v.is_empty())
             .unwrap_or(false)
         {
-            eprintln!("Error in custom mutator: {:?}", err)
+            eprintln!("Error in custom mutator: {err:?}");
         }
     }
 
@@ -745,8 +757,7 @@ mod truncate_test {
             let actual_output = truncate_str_unicode_safe(input, *max_len);
             assert_eq!(
                 &actual_output, expected_output,
-                "{:#?} truncated to {} bytes should be {:#?}, but is {:#?}",
-                input, max_len, expected_output, actual_output
+                "{input:#?} truncated to {max_len} bytes should be {expected_output:#?}, but is {actual_output:#?}"
             );
         }
     }

custom_mutators/rust/example/Cargo.toml

@@ -2,7 +2,7 @@
 name = "example_mutator"
 version = "0.1.0"
 authors = ["Julius Hohnerlein <julihoh@users.noreply.github.com>"]
-edition = "2018"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

custom_mutators/rust/example_lain/Cargo.toml

@@ -2,7 +2,7 @@
 name = "example_lain"
 version = "0.1.0"
 authors = ["Julius Hohnerlein <julihoh@users.noreply.github.com>"]
-edition = "2018"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

custom_mutators/symcc/README.md

@@ -1,6 +1,11 @@
 # custum mutator: symcc
 
-This uses the excellent symcc to find new paths into the target.
+This uses the symcc to find new paths into the target.
+
+Note that this is a just a proof of concept example! It is better to use
+the fuzzing helpers of symcc, symqemu, Fuzzolic, etc. rather than this.
+
+Also the symqemu custom mutator is better than this.
 
 To use this custom mutator follow the steps in the symcc repository 
 [https://github.com/eurecom-s3/symcc/](https://github.com/eurecom-s3/symcc/) 

custom_mutators/symcc/symcc.c

@@ -22,10 +22,10 @@ afl_state_t *afl_struct;
 typedef struct my_mutator {
 
   afl_state_t *afl;
-  u8 *         mutator_buf;
-  u8 *         out_dir;
-  u8 *         tmp_dir;
-  u8 *         target;
+  u8          *mutator_buf;
+  u8          *out_dir;
+  u8          *tmp_dir;
+  u8          *target;
   uint32_t     seed;
 
 } my_mutator_t;
@@ -101,7 +101,7 @@ my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
 
 /* When a new queue entry is added we run this input with the symcc
    instrumented binary */
-uint8_t afl_custom_queue_new_entry(my_mutator_t * data,
+uint8_t afl_custom_queue_new_entry(my_mutator_t  *data,
                                    const uint8_t *filename_new_queue,
                                    const uint8_t *filename_orig_queue) {
 
@@ -176,7 +176,7 @@ uint8_t afl_custom_queue_new_entry(my_mutator_t * data,
 
     struct dirent **nl;
     int32_t         items = scandir(data->tmp_dir, &nl, NULL, NULL);
-    u8 *            origin_name = basename(filename_new_queue);
+    u8             *origin_name = basename(filename_new_queue);
     int32_t         i;
     if (items > 0) {
 
@@ -187,8 +187,8 @@ uint8_t afl_custom_queue_new_entry(my_mutator_t * data,
         DBG("test=%s\n", fn);
         if (stat(source_name, &st) == 0 && S_ISREG(st.st_mode) && st.st_size) {
 
-          u8 *destination_name =
-              alloc_printf("%s/%s.%s", data->out_dir, origin_name, nl[i]->d_name);
+          u8 *destination_name = alloc_printf("%s/%s.%s", data->out_dir,
+                                              origin_name, nl[i]->d_name);
           rename(source_name, destination_name);
           ck_free(destination_name);
           DBG("found=%s\n", source_name);
@@ -248,7 +248,7 @@ uint32_t afl_custom_fuzz_count(my_mutator_t *data, const u8 *buf,
     for (i = 0; i < (u32)items; ++i) {
 
       struct stat st;
-      u8 *        fn = alloc_printf("%s/%s", data->out_dir, nl[i]->d_name);
+      u8         *fn = alloc_printf("%s/%s", data->out_dir, nl[i]->d_name);
       DBG("test=%s\n", fn);
       if (stat(fn, &st) == 0 && S_ISREG(st.st_mode) && st.st_size) {
 
@@ -282,12 +282,12 @@ size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
 
   if (items <= 0) return 0;
 
-  for (i = 0; i < (u32)items; ++i) {
+  for (i = 0; i < (s32)items; ++i) {
 
-    struct stat st;
-    u8 *        fn = alloc_printf("%s/%s", data->out_dir, nl[i]->d_name);
+    if (!done) {
 
-    if (done == 0) {
+      struct stat st;
+      u8         *fn = alloc_printf("%s/%s", data->out_dir, nl[i]->d_name);
 
       if (stat(fn, &st) == 0 && S_ISREG(st.st_mode) && st.st_size) {
 
@@ -306,10 +306,10 @@ size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
       }
 
       unlink(fn);
+      ck_free(fn);
 
     }
 
-    ck_free(fn);
     free(nl[i]);
 
   }

custom_mutators/symqemu/Makefile

@@ -0,0 +1,14 @@
+
+ifdef DEBUG
+  CFLAGS += -DDEBUG
+endif
+
+all: symqemu-mutator.so
+
+CFLAGS	+= -O3 -funroll-loops
+
+symqemu-mutator.so: symqemu.c
+	$(CC) -g $(CFLAGS) $(CPPFLAGS) -g -I../../include -shared -fPIC -o symqemu-mutator.so symqemu.c
+
+clean:
+	rm -f symqemu-mutator.so *.o *~ core

custom_mutators/symqemu/README.md

@@ -0,0 +1,19 @@
+# custum mutator: symqemu
+
+This uses the symcc to find new paths into the target.
+
+## How to build and use
+
+To use this custom mutator follow the steps in the symqemu repository 
+[https://github.com/eurecom-s3/symqemu/](https://github.com/eurecom-s3/symqemu/) 
+on how to build symqemu-x86_x64 and put it in your `PATH`.
+
+Just type `make` to build this custom mutator.
+
+```AFL_CUSTOM_MUTATOR_LIBRARY=custom_mutators/symqemu/symqemu-mutator.so AFL_DISABLE_TRIM=1 afl-fuzz ...```
+
+## Options
+
+`SYMQEMU_ALL=1` - use concolic solving on **all** queue items, not only interesting/favorite ones.
+
+`SYMQEMU_LATE=1` - use concolic solving only after there have been no finds for 5 minutes.

custom_mutators/symqemu/symqemu.c

@@ -0,0 +1,424 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include "config.h"
+#include "debug.h"
+#include "afl-fuzz.h"
+#include "common.h"
+
+afl_state_t *afl_struct;
+static u32   debug = 0;
+static u32   found_items = 0;
+
+#define SYMQEMU_LOCATION "symqemu"
+
+#define DBG(x...) \
+  if (debug) { fprintf(stderr, x); }
+
+typedef struct my_mutator {
+
+  afl_state_t *afl;
+  u32          all;
+  u32          late;
+  u8          *mutator_buf;
+  u8          *out_dir;
+  u8          *target;
+  u8          *symqemu;
+  u8          *input_file;
+  u32          counter;
+  u32          seed;
+  u32          argc;
+  u8         **argv;
+
+} my_mutator_t;
+
+my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
+
+  if (getenv("AFL_DEBUG")) debug = 1;
+
+  my_mutator_t *data = calloc(1, sizeof(my_mutator_t));
+  if (!data) {
+
+    perror("afl_custom_init alloc");
+    return NULL;
+
+  }
+
+  char *path = getenv("PATH");
+  char *exec_name = "symqemu-x86_64";
+  char *token = strtok(path, ":");
+  char  exec_path[4096];
+
+  while (token != NULL && data->symqemu == NULL) {
+
+    snprintf(exec_path, sizeof(exec_path), "%s/%s", token, exec_name);
+    if (access(exec_path, X_OK) == 0) {
+
+      data->symqemu = (u8 *)strdup(exec_path);
+      break;
+
+    }
+
+    token = strtok(NULL, ":");
+
+  }
+
+  if (!data->symqemu) FATAL("symqemu binary %s not found", exec_name);
+  DBG("Found %s\n", data->symqemu);
+
+  if (getenv("AFL_CUSTOM_MUTATOR_ONLY")) {
+
+    WARNF(
+        "the symqemu module is not very effective with "
+        "AFL_CUSTOM_MUTATOR_ONLY.");
+
+  }
+
+  if ((data->mutator_buf = malloc(MAX_FILE)) == NULL) {
+
+    free(data);
+    perror("mutator_buf alloc");
+    return NULL;
+
+  }
+
+  data->target = getenv("AFL_CUSTOM_INFO_PROGRAM");
+
+  u8 *path_tmp = getenv("AFL_CUSTOM_INFO_OUT");
+  u32 len = strlen(path_tmp) + 32;
+  u8 *symqemu_path = malloc(len);
+  data->out_dir = malloc(len);
+  snprintf(symqemu_path, len, "%s/%s", path_tmp, SYMQEMU_LOCATION);
+  snprintf(data->out_dir, len, "%s/out", symqemu_path, path_tmp);
+
+  (void)mkdir(symqemu_path, 0755);
+  (void)mkdir(data->out_dir, 0755);
+
+  setenv("SYMCC_OUTPUT_DIR", data->out_dir, 1);
+
+  data->input_file = getenv("AFL_CUSTOM_INFO_PROGRAM_INPUT");
+
+  u8 *tmp = NULL;
+  if ((tmp = getenv("AFL_CUSTOM_INFO_PROGRAM_ARGV")) && *tmp) {
+
+    int argc = 0, index = 2;
+    for (u32 i = 0; i < strlen(tmp); ++i)
+      if (isspace(tmp[i])) ++argc;
+
+    data->argv = (u8 **)malloc((argc + 4) * sizeof(u8 **));
+    u8 *p = strdup(tmp);
+
+    do {
+
+      data->argv[index] = p;
+      while (*p && !isspace(*p))
+        ++p;
+      if (*p) {
+
+        *p++ = 0;
+        while (isspace(*p))
+          ++p;
+
+      }
+
+      if (strcmp(data->argv[index], "@@") == 0) {
+
+        if (!data->input_file) {
+
+          u32 ilen = strlen(symqemu_path) + 32;
+          data->input_file = malloc(ilen);
+          snprintf(data->input_file, ilen, "%s/.input", symqemu_path);
+
+        }
+
+        data->argv[index] = data->input_file;
+
+      }
+
+      DBG("%d: %s\n", index, data->argv[index]);
+      index++;
+
+    } while (*p);
+
+    data->argv[index] = NULL;
+    data->argc = index;
+
+  } else {
+
+    data->argv = (u8 **)malloc(8 * sizeof(u8 **));
+    data->argc = 2;
+    data->argv[2] = NULL;
+
+  }
+
+  data->argv[0] = data->symqemu;
+  data->argv[1] = data->target;
+  data->afl = afl;
+  data->seed = seed;
+  afl_struct = afl;
+
+  if (getenv("SYMQEMU_ALL")) { data->all = 1; }
+  if (getenv("SYMQEMU_LATE")) { data->late = 1; }
+  if (data->input_file) { setenv("SYMCC_INPUT_FILE", data->input_file, 1); }
+
+  DBG("out_dir=%s, target=%s, input_file=%s, argc=%u\n", data->out_dir,
+      data->target,
+      data->input_file ? (char *)data->input_file : (char *)"<stdin>",
+      data->argc);
+
+  if (debug) {
+
+    fprintf(stderr, "[");
+    for (u32 i = 0; i <= data->argc; ++i)
+      fprintf(stderr, " \"%s\"",
+              data->argv[i] ? (char *)data->argv[i] : "<NULL>");
+    fprintf(stderr, " ]\n");
+
+  }
+
+  return data;
+
+}
+
+/* No need to receive a splicing item */
+void afl_custom_splice_optout(void *data) {
+
+  (void)(data);
+
+}
+
+/* Get unix time in milliseconds */
+
+inline u64 get_cur_time(void) {
+
+  struct timeval  tv;
+  struct timezone tz;
+
+  gettimeofday(&tv, &tz);
+
+  return (tv.tv_sec * 1000ULL) + (tv.tv_usec / 1000);
+
+}
+
+u32 afl_custom_fuzz_count(my_mutator_t *data, const u8 *buf, size_t buf_size) {
+
+  if (likely((!afl_struct->queue_cur->favored && !data->all) ||
+             afl_struct->queue_cur->was_fuzzed)) {
+
+    return 0;
+
+  }
+
+  if (likely(data->late)) {
+
+    if (unlikely(get_cur_time() - afl_struct->last_find_time <=
+                 10 * 60 * 1000)) {
+
+      return 0;
+
+    }
+
+  }
+
+  int         pipefd[2];
+  struct stat st;
+
+  if (afl_struct->afl_env.afl_no_ui) {
+
+    ACTF("Sending to symqemu: %s", afl_struct->queue_cur->fname);
+
+  }
+
+  if (!(stat(afl_struct->queue_cur->fname, &st) == 0 && S_ISREG(st.st_mode) &&
+        st.st_size)) {
+
+    PFATAL("Couldn't find enqueued file: %s", afl_struct->queue_cur->fname);
+
+  }
+
+  if (afl_struct->fsrv.use_stdin) {
+
+    if (pipe(pipefd) == -1) {
+
+      PFATAL(
+          "Couldn't create a pipe for interacting with symqemu child process");
+
+    }
+
+  }
+
+  if (data->input_file) {
+
+    int     fd = open(data->input_file, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+    ssize_t s = write(fd, buf, buf_size);
+    close(fd);
+    DBG("wrote %zd/%zd to %s\n", s, buf_size, data->input_file);
+
+  }
+
+  int pid = fork();
+
+  if (pid == -1) return 0;
+
+  if (likely(pid)) {
+
+    if (!data->input_file || afl_struct->fsrv.use_stdin) {
+
+      close(pipefd[0]);
+
+      if (fcntl(pipefd[1], F_GETPIPE_SZ)) {
+
+        fcntl(pipefd[1], F_SETPIPE_SZ, MAX_FILE);
+
+      }
+
+      ck_write(pipefd[1], buf, buf_size, data->input_file);
+
+      close(pipefd[1]);
+
+    }
+
+    pid = waitpid(pid, NULL, 0);
+    DBG("symqemu finished executing!\n");
+
+  } else /* (pid == 0) */ {  // child
+
+    if (afl_struct->fsrv.use_stdin) {
+
+      close(pipefd[1]);
+      dup2(pipefd[0], 0);
+
+    }
+
+    DBG("exec=%s\n", data->target);
+    if (!debug) {
+
+      close(1);
+      close(2);
+      dup2(afl_struct->fsrv.dev_null_fd, 1);
+      dup2(afl_struct->fsrv.dev_null_fd, 2);
+
+    }
+
+    execvp((char *)data->argv[0], (char **)data->argv);
+    fprintf(stderr, "Executing: [");
+    for (u32 i = 0; i <= data->argc; ++i)
+      fprintf(stderr, " \"%s\"",
+              data->argv[i] ? (char *)data->argv[i] : "<NULL>");
+    fprintf(stderr, " ]\n");
+    FATAL("Failed to execute %s %s\n", data->argv[0], data->argv[1]);
+    exit(-1);
+
+  }
+
+  /* back in mother process */
+
+  struct dirent **nl;
+  s32             i, items = scandir(data->out_dir, &nl, NULL, NULL);
+  found_items = 0;
+  char source_name[4096];
+
+  if (items > 0) {
+
+    for (i = 0; i < (u32)items; ++i) {
+
+      // symqemu output files start with a digit
+      if (!isdigit(nl[i]->d_name[0])) continue;
+
+      struct stat st;
+      snprintf(source_name, sizeof(source_name), "%s/%s", data->out_dir,
+               nl[i]->d_name);
+      DBG("file=%s\n", source_name);
+
+      if (stat(source_name, &st) == 0 && S_ISREG(st.st_mode) && st.st_size) {
+
+        ++found_items;
+
+      }
+
+      free(nl[i]);
+
+    }
+
+    free(nl);
+
+  }
+
+  DBG("Done, found %u items!\n", found_items);
+
+  return found_items;
+
+}
+
+size_t afl_custom_fuzz(my_mutator_t *data, u8 *buf, size_t buf_size,
+                       u8 **out_buf, u8 *add_buf, size_t add_buf_size,
+                       size_t max_size) {
+
+  struct dirent **nl;
+  s32             done = 0, i, items = scandir(data->out_dir, &nl, NULL, NULL);
+  char            source_name[4096];
+
+  if (items > 0) {
+
+    for (i = 0; i < (u32)items; ++i) {
+
+      // symqemu output files start with a digit
+      if (!isdigit(nl[i]->d_name[0])) continue;
+
+      struct stat st;
+      snprintf(source_name, sizeof(source_name), "%s/%s", data->out_dir,
+               nl[i]->d_name);
+      DBG("file=%s\n", source_name);
+
+      if (stat(source_name, &st) == 0 && S_ISREG(st.st_mode) && st.st_size) {
+
+        int fd = open(source_name, O_RDONLY);
+        if (fd < 0) { goto got_an_issue; }
+
+        ssize_t r = read(fd, data->mutator_buf, MAX_FILE);
+        close(fd);
+
+        DBG("fn=%s, fd=%d, size=%ld\n", source_name, fd, r);
+
+        if (r < 1) { goto got_an_issue; }
+
+        done = 1;
+        --found_items;
+        unlink(source_name);
+
+        *out_buf = data->mutator_buf;
+        return (u32)r;
+
+      }
+
+      free(nl[i]);
+
+    }
+
+    free(nl);
+
+  }
+
+got_an_issue:
+  *out_buf = NULL;
+  return 0;
+
+}
+
+/**
+ * Deinitialize everything
+ *
+ * @param data The data ptr from afl_custom_init
+ */
+void afl_custom_deinit(my_mutator_t *data) {
+
+  free(data->mutator_buf);
+  free(data);
+
+}
+

dictionaries/README.md

@@ -1,6 +1,6 @@
 # AFL++ dictionaries
 
-(See [../README.md](../README.md) for the general instruction manual.)
+For the general instruction manual, see [docs/README.md](../docs/README.md).
 
 This subdirectory contains a set of dictionaries that can be used in conjunction
 with the -x option to allow the fuzzer to effortlessly explore the grammar of

docs/Changelog.md

@@ -1,24 +1,387 @@
 # Changelog
 
-  This is the list of all noteworthy changes made in every public release of
-  the tool. See README.md for the general instruction manual.
+  This is the list of all noteworthy changes made in every public
+  release of the tool. See README.md for the general instruction manual.
 
-## Staying informed
+### Version ++4.21c (release)
+  * afl-fuzz
+    - fixed a regression in afl-fuzz that resulted in a 5-10% performace loss
+      do a switch from gettimeofday() to clock_gettime() which should be rather
+      three times faster. The reason for this is unknown.
+    - new queue selection algorithm based on 2 core years of queue data
+      analysis. gives a noticable improvement on coverage although the results
+      seem counterintuitive :-)
+    - added AFL_DISABLE_REDUNDANT for huge queues
+    - added `AFL_NO_SYNC` environment variable that does what you think it does
+    - fix AFL_PERSISTENT_RECORD
+    - run custom_post_process after standard trimming
+    - prevent filenames in the queue that have spaces
+    - minor fix for FAST schedules
+    - more frequent stats update when syncing (todo: check performance impact)
+    - now timing of calibration, trimming and syncing is measured seperately,
+      thanks to @eqv!
+    - -V timing is now accurately the fuzz time (without syncing), before
+      long calibration times and syncing could result in now fuzzing being
+      made when the time was already run out until then, thanks to @eqv!
+    - fix -n uninstrumented mode when ending fuzzing
+    - enhanced the ASAN configuration
+    - make afl-fuzz use less memory with cmplog and fix a memleak
+  * afl-cc:
+    - re-enable i386 support that was accidently disabled
+    - fixes for LTO and outdated afl-gcc mode for i386
+    - fix COMPCOV split compare for old LLVMs
+    - disable xml/curl/g_ string transform functions because we do not check
+      for null pointers ... TODO
+    - ensure shared memory variables are visible in weird build setups
+    - compatability to new LLVM 19 changes
+  * afl-cmin
+    - work with input files that have a space
+  * afl-showmap
+    - fix memory leak on shmem testcase usage (thanks to @ndrewh)
+    - minor fix to collect coverage -C (thanks to @bet4it)
+  * Fixed a shmem mmap bug (that rarely came up on MacOS)
+  * libtokencap: script generate_libtoken_dict.sh added by @a-shvedov 
 
-Want to stay in the loop on major new features? Join our mailing list by
-sending a mail to <afl-users+subscribe@googlegroups.com>.
 
-### Version ++3.15a (dev)
-  - documentation restructuring, made possible by Google Season of Docs
+### Version ++4.20c (release)
+  ! A new forkserver communication model is now introduced. afl-fuzz is
+    backward compatible to old compiled targets if they are not built
+    for CMPLOG/Redqueen, but new compiled targets will not work with
+    old afl-fuzz versions!
+  ! Recompile all targets that are instrumented for CMPLOG/Redqueen!
+  - AFL++ now supports up to 4 billion coverage edges, up from 6 million.
+  - New compile option: `make PERFORMANCE=1` - this will enable special
+    CPU dependent optimizations that make everything more performant - but
+    the binaries will likely won't work on different platforms. Also
+    enables a faster hasher if the CPU requirements are met.
+  - The persistent record feature (see config.h) was expanded to also
+    support replay, thanks to @quarta-qti !
+  - afl-fuzz:
+    - the new deterministic fuzzing feature is now activated by default,
+      deactivate with -z. Parameters -d and -D are ignored.
+    - small improvements to CMPLOG/redqueen
+    - workround for a bug with MOpt -L when used with -M - in the future
+      we will either remove or rewrite MOpt.
+    - fix for `-t xxx+` feature
+    - -e extension option now saves the queue items, crashes, etc. with the
+      extension too
+    - fixes for trimmming, correct -V time and reading stats on resume by eqv
+      thanks a lot!
+  - afl-cc:
+    - added collision free caller instrumentation to LTO mode. activate with
+      `AFL_LLVM_LTO_CALLER=1`. You can set a max depth to go through single
+      block functions with `AFL_LLVM_LTO_CALLER_DEPTH` (default 0)
+    - fixes for COMPCOV/LAF and most other modules
+    - fix for GCC_PLUGIN cmplog that broke on std::strings
+  - afl-whatsup:
+    - now also displays current average speed
+    - small bugfixes
+  - custom mutators:
+    - fixes for aflpp custom mutator and standalone tool
+    - important fix to the symcc custom mutator
+  - Minor edits to afl-persistent-config
+  - Prevent temporary files being left behind on aborted afl-whatsup
+  - More CPU benchmarks added to benchmark/
+
+### Version ++4.10c (release)
+  - afl-fuzz:
+    - default power schedule is now EXPLORE, due a fix in fast schedules
+      explore is slightly better now.
+    - fixed minor issues in the mutation engine, thanks to @futhewo for
+      reporting!
+    - better deterministic fuzzing is now available, benchmarks have shown
+      to improve fuzzing. Enable with -D. Thanks to @kdsjZh for the PR!
+  - afl-cc:
+    - large rewrite by @SonicStark which fixes a few corner cases, thanks!
+    - LTO mode now requires llvm 12+
+    - workaround for ASAN with gcc_plugin mode
+  - instrumentation:
+    - LLVM 18 support, thanks to @devnexen!
+    - Injection (SQL, LDAP, XSS) fuzzing feature now available, see
+      `instrumentation/README.injections.md` how to activate/use/expand.
+    - compcov/LAF-intel:
+      - floating point splitting bug fix by @hexcoder
+      - due a bug in LLVM 17 integer splitting is disabled there!
+      - when splitting floats was selected, integers were always split as well,
+        fixed to require AFL_LLVM_LAF_SPLIT_COMPARES or _ALL as it should
+    - dynamic instrumentation filtering for LLVM NATIVE, thanks @Mozilla!
+      see utils/dynamic_covfilter/README.md
+  - qemu_mode:
+    - plugins are now activated by default and a new module is included that
+      produces drcov compatible traces for lighthouse/lightkeeper/...
+      thanks to @JRomainG to submitting!
+  - updated Nyx checkout (fixes a bug) and some QOL
+  - updated the custom grammar mutator
+  - document afl-cmin does not work on macOS (but afl-cmin.bash does)
+
+### Version ++4.09c (release)
+  - afl-fuzz:
+    - fixed the new mutation implementation for two bugs
+    - added `AFL_FINAL_SYNC` which forces a final fuzzer sync (also for `-F`)
+      before terminating.
+    - added AFL_IGNORE_SEED_PROBLEMS to skip over seeds that time out instead
+      of exiting with an error message
+    - allow -S/-M naming up to 50 characters (from 24)
+    - CMPLOG:
+      - added scale support (-l S)
+      - skip unhelpful insertions (u8)
+    - added --version and --help command line parameters
+    - fixed endless loop when reading malformed dictionaries
+    - new custom mutator function: post_run - thanks to yangzao!
+  - afl-whatsup:
+    - detect instanced that are starting up and show them as such as not dead
+    - now also shows coverage reached
+    - option -m shows only very relevant stats
+    - option -n will not use color in the output
+  - instrumentation:
+    - fix for a few string compare transform functions for LAF
+    - we are instrumenting __cxx internal functions again. this might break
+      a few targets, please report if so.
+  - frida_mode:
+    - fixes support for large map offsets
+  - support for AFL_FUZZER_LOOPCOUNT for afl.rs and LLVMFuzzerTestOneInput
+  - afl-cmin/afl-cmin.bash: prevent unneeded file errors
+  - added new tool afl-addseeds that adds new seeds to a running campaign
+  - added benchmark/benchmark.py if you want to see how good your fuzzing
+    speed is in comparison to other setups.
+
+### Version ++4.08c (release)
+  - afl-fuzz:
+    - new mutation engine: mutations that favor discovery more paths are
+      prefered until no new finds for 10 minutes then switching to mutations
+      that favor triggering crashes. Modes and switch time can be configured
+      with `-P`. Also input mode for the target can be defined with `-a` to
+      be `text` or `binary` (defaults to `generic`)
+    - new custom mutator that has the new afl++ engine (so it can easily
+      incorporated into new custom mutators), and also comes with a standalone
+      command line tool! See custom_mutators/aflpp/standalone/
+    - display the state of the fuzzing run in the UI :-)
+    - fix timeout setting if '+' is used or a session is restarted
+    - -l X option to enable base64 transformation solving
+    - allow to disable CMPLOG with '-c -' (e.g. afl.rs enforces '-c 0' on
+      every instance which is counterproductive).
+  - afl-cmin/afl-cmin.bash:
+    - fixed a bug inherited from vanilla AFL where a coverage of
+      map[123] = 11 would be the same as map[1123] = 1
+    - warn on crashing inputs
+    - adjust threads if less inputs than threads specified
+  - afl-cc:
+    - fixed an off-by-one instrumentation of iselect, hurting coverage a bit.
+      Thanks to @amykweon for spotting and fixing!
+    - @toka fixed a bug in laf-intel signed integer comparison splitting,
+      thanks a lot!!
+    - more LLVM compatability
+  - frida_mode:
+    - support for long form instrumentation on x86_x64 and arm64
+    - renamed utils/get_symbol_addr.sh to utils/frida_get_symbol_addr.sh
+  - qemu_mode:
+    - added qemu_mode/utils/qemu_get_symbol_addr.sh
+
+### Version ++4.07c (release)
+  - afl-fuzz:
+    - reverse reading the seeds only on restarts (increases performance)
+    - new env `AFL_POST_PROCESS_KEEP_ORIGINAL` to keep the orignal
+      data before post process on finds (for atnwalk custom mutator)
+    - new env `AFL_IGNORE_PROBLEMS_COVERAGE` to ignore coverage from
+      loaded libs after forkserver initialization (required by Mozilla)
+  - afl-cc:
+    - added @responsefile support
+    - new env `AFL_LLVM_LTO_SKIPINIT` to support the AFL++ based WASM
+      (https://github.com/fgsect/WAFL) project
+    - error and print help if afl-clan-lto is used with lto=thin
+    - rewrote our PCGUARD pass to be compatible with LLVM 15+ shenanigans,
+      requires LLVM 13+ now instead of 10.0.1+
+    - fallback to native LLVM PCGUARD if our PCGUARD is unavailable
+    - fixed a crash in GCC CMPLOG
+  - afl-showmap:
+    - added custom mutator post_process and send support
+    - add `-I filelist` option, an alternative to `-i in_dir`
+  - afl-cmin + afl-cmin.bash:
+    - `-T threads` parallel task support, can be a huge speedup!
+  - qemu_mode:
+    - Persistent mode + QASAN support for ppc32 targets by @worksbutnottested
+  - a new grammar custom mutator atnwalk was submitted by @voidptr127 !
+  - two new custom mutators are now available:
+    - TritonDSE in custom_mutators/aflpp_tritondse
+    - SymQEMU in custom_mutators/symqemu
+
+### Version ++4.06c (release)
+  - afl-fuzz:
+    - ensure temporary file descriptor is closed when not used
+    - added `AFL_NO_WARN_INSTABILITY`
+    - added time_wo_finds to fuzzer_stats
+    - fixed a crash in pizza (1st april easter egg) mode. Sorry for
+      everyone who was affected!
+    - allow pizza mode to be disabled when AFL_PIZZA_MODE is set to -1
+    - option `-p mmopt` now also selects new queue items more often
+    - fix bug in post_process custom mutator implementation
+    - print name of custom mutator in UI
+    - slight changes that improve fuzzer performance
+  - afl-cc:
+    - add CFI sanitizer variant to gcc targets
+    - llvm 16 + 17 support (thanks to @devnexen!)
+    - support llvm 15 native pcguard changes
+    - support for LLVMFuzzerTestOneInput -1 return
+    - LTO autoken and llvm_mode: added AFL_LLVM_DICT2FILE_NO_MAIN support
+  - qemu_mode:
+    - fix _RANGES envs to allow hyphens in the filenames
+    - basic riscv support
+  - frida_mode:
+    - added `AFL_FRIDA_STATS_INTERVAL`
+    - fix issue on MacOS
+  - unicorn_mode:
+    - updated and minor issues fixed
+  - nyx_mode support for all tools
+  - better sanitizer default options support for all tools
+  - new custom module: autotoken, a grammar free fuzzer for text inputs
+  - fixed custom mutator C examples
+  - more minor fixes and cross-platform support
+
+### Version ++4.05c (release)
+  - MacOS: libdislocator, libtokencap etc. do not work with modern
+    MacOS anymore, but could be patched to work, see this issue if you
+    want to make the effort and send a PR:
+    https://github.com/AFLplusplus/AFLplusplus/issues/1594
+  - afl-fuzz:
+    - added afl_custom_fuzz_send custom mutator feature. Now your can
+      send fuzz data to the target as you need, e.g. via IPC.
+    - cmplog mode now has a -l R option for random colorization, thanks
+      to guyf2010 for the PR!
+    - queue statistics are written every 30 minutes to
+      out/NAME/queue_data if compiled with INTROSPECTION
+    - new env: AFL_FORK_SERVER_KILL_SIGNAL
+  - afl-showmap/afl-cmin
+    - `-t none` now translates to `-t 120000` (120 seconds)
+  - unicorn_mode updated
+  - updated rust custom mutator dependencies and LibAFL custom mutator
+  - overall better sanitizer default setting handling
+  - several minor bugfixes
+
+### Version ++4.04c (release)
+  - fix gramatron and grammar_mutator build scripts
+  - enhancements to the afl-persistent-config and afl-system-config
+    scripts
+  - afl-fuzz:
+    - force writing all stats on exit
+    - ensure targets are killed on exit
+    - `AFL_FORK_SERVER_KILL_SIGNAL` added
+  - afl-cc:
+    - make gcc_mode (afl-gcc-fast) work with gcc down to version 3.6
+  - qemu_mode:
+    - fixed 10x speed degredation in v4.03c, thanks to @ele7enxxh for
+      reporting!
+    - added qemu_mode/fastexit helper library
+  - unicorn_mode:
+    - Enabled tricore arch (by @jma-qb)
+    - Updated Capstone version in Rust bindings
+  - llvm-mode:
+    - AFL runtime will always pass inputs via shared memory, when possible,
+      ignoring the command line.
+
+
+### Version ++4.03c (release)
+  - Building now gives a build summary what succeeded and what not
+  - afl-fuzz:
+    - added AFL_NO_STARTUP_CALIBRATION to start fuzzing at once instead
+      of calibrating all initial seeds first. Good for large queues
+      and long execution times, especially in CIs.
+    - default calibration cycles set to 7 from 8, and only add 5 cycles
+      to variables queue items instead of 12.
+  - afl-cc:
+    - fixed off-by-one bug in our pcguard implemenation, thanks for
+      @tokatoka for reporting
+    - fix for llvm 15 and reenabling LTO, thanks to nikic for the PR!
+    - better handling of -fsanitize=..,...,.. lists
+    - support added for LLVMFuzzerRunDriver()
+    - fix gcc_mode cmplog
+    - obtain the map size of a target with setting AFL_DUMP_MAP_SIZE=1
+      note that this will exit the target before main()
+  - qemu_mode:
+    - added AFL_QEMU_TRACK_UNSTABLE to log the addresses of unstable
+      edges (together with AFL_DEBUG=1 afl-fuzz). thanks to
+      worksbutnottested!
+  - afl-analyze broke at some point, fix by CodeLogicError, thank you!
+  - afl-cmin/afl-cmin.bash now have an -A option to allow also crashing
+    and timeout inputs
+  - unicorn_mode:
+    - updated upstream unicorn version
+    - fixed builds for aarch64
+    - build now uses all available cores
+
+
+### Version ++4.02c (release)
+  - afl-cc:
+    - important fix for the default pcguard mode when LLVM IR vector
+      selects are produced, thanks to @juppytt for reporting!
+  - gcc_plugin:
+    - Adacore submitted CMPLOG support to the gcc_plugin! :-)
+  - llvm_mode:
+    - laf cmp splitting fixed for more comparison types
+  - frida_mode:
+    - now works on Android!
+  - afl-fuzz:
+    - change post_process hook to allow returning NULL and 0 length to
+      tell afl-fuzz to skip this mutated input
+
+### Version ++4.01c (release)
+  - fixed */build_...sh scripts to work outside of git
+  - new custom_mutator: libafl with token fuzzing :)
+  - afl-fuzz:
+    - when you just want to compile once and set CMPLOG, then just
+      set -c 0 to tell afl-fuzz that the fuzzing binary is also for
+      CMPLOG.
+    - new commandline options -g/G to set min/max length of generated
+      fuzz inputs
+    - you can set the time for syncing to other fuzzer now with
+      AFL_SYNC_TIME
+    - reintroduced AFL_PERSISTENT and AFL_DEFER_FORKSRV to allow
+      persistent mode and manual forkserver support if these are not
+      in the target binary (e.g. are in a shared library)
+    - add AFL_EARLY_FORKSERVER to install the forkserver as earliest as
+      possible in the target (for afl-gcc-fast/afl-clang-fast/
+      afl-clang-lto)
+    - "saved timeouts" was wrong information, timeouts are still thrown
+      away by default even if they have new coverage (hangs are always
+      kept), unless AFL_KEEP_TIMEOUTS are set
+    - AFL never implemented auto token inserts (but user token inserts,
+      user token overwrite and auto token overwrite), added now!
+    - fixed a mutation type in havoc mode
+    - Mopt fix to always select the correct algorithm
+    - fix effector map calculation (deterministic mode)
+    - fix custom mutator post_process functionality
+    - document and auto-activate pizza mode on condition
+  - afl-cc:
+    - due a bug in lld of llvm 15 LTO instrumentation wont work atm :-(
+    - converted all passed to use the new llvm pass manager for llvm 11+
+    - AFL++ PCGUARD mode is not available for 10.0.1 anymore (11+ only)
+    - trying to stay on top on all these #$&§!! changes in llvm 15 ...
+  - frida_mode:
+    - update to new frida release, handles now c++ throw/catch
+  - unicorn_mode:
+    - update unicorn engine, fix C example
+  - utils:
+    - removed optimin because it looses coverage due to a bug and is
+      unmaintained :-(
+
+
+### Version ++4.00c (release)
+  - complete documentation restructuring, made possible by Google Season
+    of Docs :) thank you Jana!
   - we renamed several UI and fuzzer_stat entries to be more precise,
     e.g. "unique crashes" -> "saved crashes", "total paths" ->
     "corpus count", "current path" -> "current item".
     This might need changing custom scripting!
+  - Nyx mode (full system emulation with snapshot capability) has been
+    added - thanks to @schumilo and @eqv!
+  - unicorn_mode:
+    - Moved to unicorn2! by Ziqiao Kong (@lazymio)
+    - Faster, more accurate emulation (newer QEMU base), risc-v support
+    - removed indirections in rust callbacks
   - new binary-only fuzzing mode: coresight_mode for aarch64 CPUs :)
     thanks to RICSecLab submitting!
   - if instrumented libaries are dlopen()'ed after the forkserver you
-    will now see crashes. before you would have colliding coverage.
-    we changed this to force fixing a broken setup rather then allowing
+    will now see a crash. Before you would have colliding coverage.
+    We changed this to force fixing a broken setup rather then allowing
     ineffective fuzzing.
     See docs/best_practices.md how to fix such setups.
   - afl-fuzz:
@@ -26,14 +389,17 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
       (it is better!)
     - fix a regression introduced in 3.10 that resulted in less
       coverage being detected. thanks to Collin May for reporting!
+    - ensure all spawned targets are killed on exit
     - added AFL_IGNORE_PROBLEMS, plus checks to identify and abort on
       incorrect LTO usage setups and enhanced the READMEs for better
       information on how to deal with instrumenting libraries
-    - fix -n dumb mode (nobody should use this)
+    - fix -n dumb mode (nobody should use this mode though)
     - fix stability issue with LTO and cmplog
     - better banner
     - more effective cmplog mode
     - more often update the UI when in input2stage mode
+  - qemu_mode/unicorn_mode: fixed OOB write when using libcompcov,
+      thanks to kotee4ko for reporting!
   - frida_mode:
     - better performance, bug fixes
     - David Carlier added Android support :)
@@ -43,16 +409,22 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
     - fix bug where targets are not killed on timeouts
     - moved hidden afl-showmap -A option to -H to be used for
       coresight_mode
-  - Prevent accidently killing non-afl/fuzz services when aborting
+  - Prevent accidentally killing non-afl/fuzz services when aborting
     afl-showmap and other tools.
   - afl-cc:
-    - new cmplog mode (incompatible with older afl++ versions)
+    - detect overflow reads on initial input buffer for asan
+    - new cmplog mode (incompatible with older AFL++ versions)
     - support llvm IR select instrumentation for default PCGUARD and LTO
     - fix for shared linking on MacOS
+    - better selective instrumentation AFL_LLVM_{ALLOW|DENY}LIST
+      on filename matching (requires llvm 11 or newer)
     - fixed a potential crash in targets for LAF string handling
+    - fixed a bad assert in LAF split switches
     - added AFL_USE_TSAN thread sanitizer support
-    - llvm and LTO mode modified to work with new llvm 14-dev (again. again.)
+    - llvm and LTO mode modified to work with new llvm 14-dev (again.)
     - fix for AFL_REAL_LD
+    - more -z defs filtering
+    - make -v without options work
   - added the very good grammar mutator "GramaTron" to the
     custom_mutators
   - added optimin, a faster and better corpus minimizer by
@@ -60,11 +432,10 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
   - added afl-persistent-config script to set perform permanent system
     configuration settings for fuzzing, for Linux and Macos.
     thanks to jhertz!
-  - added xml, curl and exotic string functions to llvm dictionary features
+  - added xml, curl & exotic string functions to llvm dictionary feature
   - fix AFL_PRELOAD issues on MacOS
   - removed utils/afl_frida because frida_mode/ is now so much better
   - added uninstall target to makefile (todo: update new readme!)
-  - removed indirections in rust callbacks for unicornafl
 
 ### Version ++3.14c (release)
   - afl-fuzz:
@@ -84,7 +455,7 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
     - Fix to instrument global namespace functions in c++
     - Fix for llvm 13
     - support partial linking
-    - do honor AFL_LLVM_{ALLOW/DENY}LIST for LTO autodictionary and DICT2FILE
+    - do honor AFL_LLVM_{ALLOW/DENY}LIST for LTO autodictionary andDICT2FILE
     - We do support llvm versions from 3.8 to 5.0 again
   - frida_mode:
     - several fixes for cmplog

docs/FAQ.md

@@ -29,8 +29,8 @@ If you find an interesting or important question missing, submit it via
   which then implemented their own research and features, making it now by far
   the most flexible and feature rich guided fuzzer available as open source. And
   in independent fuzzing benchmarks it is one of the best fuzzers available,
-  e.g., [Fuzzbench
-  Report](https://www.fuzzbench.com/reports/2020-08-03/index.html).
+  e.g.,
+  [Fuzzbench Report](https://www.fuzzbench.com/reports/2020-08-03/index.html).
 </p></details>
 
 <details>
@@ -58,10 +58,10 @@ If you find an interesting or important question missing, submit it via
 
   A program contains `functions`, `functions` contain the compiled machine code.
   The compiled machine code in a `function` can be in a single or many `basic
-  blocks`. A `basic block` is the largest possible number of subsequent machine
-  code instructions that has exactly one entry point (which can be be entered by
-  multiple other basic blocks) and runs linearly without branching or jumping to
-  other addresses (except at the end).
+  blocks`. A `basic block` is the **largest possible number of subsequent machine
+  code instructions** that has **exactly one entry point** (which can be be entered by
+  multiple other basic blocks) and runs linearly **without branching or jumping to
+  other addresses** (except at the end).
 
   ```
   function() {
@@ -103,6 +103,42 @@ If you find an interesting or important question missing, submit it via
   to itself, this too would be an edge.
 </p></details>
 
+<details>
+  <summary id="should-you-ever-stop-afl-fuzz-minimize-the-corpus-and-restart">Should you ever stop afl-fuzz, minimize the corpus and restart?</summary><p>
+
+  To stop afl-fuzz, minimize it's corpus and restart you would usually do:
+
+  ```
+  Control-C  # to terminate afl-fuzz
+  $ afl-cmin -T nproc -i out/default/queue -o minimized_queue -- ./target
+  $ AFL_FAST_CAL=1 AFL_CMPLOG_ONLY_NEW=1 afl-fuzz -i minimized_queue -o out2 [other options] -- ./target
+  ```
+
+  If this improves fuzzing or not is debated and no consensus has been reached
+  or in-depth analysis been performed.
+
+  On the pro side:
+    * The queue/corpus is reduced (up to 20%) by removing intermediate paths
+      that are maybe not needed anymore.
+
+  On the con side:
+    * Fuzzing time is lost for the time the fuzzing is stopped, minimized and
+      restarted.
+
+  The the big question:
+    * Does a minimized queue/corpus improve finding new coverage or does it
+      hinder it?
+
+  The AFL++ team's own limited analysis seem to to show that keeping
+  intermediate paths help to find more coverage, at least for afl-fuzz.
+
+  For honggfuzz in comparison it is a good idea to restart it from time to
+  time if you have other fuzzers (e.g: AFL++) running in parallel to sync
+  the finds of other fuzzers to honggfuzz as it has no syncing feature like
+  AFL++ or libfuzzer.
+
+</p></details>
+
 ## Targets
 
 <details>
@@ -171,6 +207,14 @@ If you find an interesting or important question missing, submit it via
   The more "unstable" edges there are, the harder it is for AFL++ to identify
   valid new paths.
 
+  If you fuzz in persistent mode (`AFL_LOOP` or `LLVMFuzzerTestOneInput()`
+  harnesses, a large number of unstable edges can mean that the target keeps
+  internal state and therefore it is possible that crashes cannot be replayed.
+  In such a case do either **not** fuzz in persistent mode (remove `AFL_LOOP()`
+  from your harness or call `LLVMFuzzerTestOneInput()` harnesses with `@@`),
+  or set a low  `AFL_LOOP` value, e.g. 100, and enable `AFL_PERSISTENT_RECORD`
+  in `config.h` with the same value.
+
   A value above 90% is usually fine and a value above 80% is also still ok, and
   even a value above 20% can still result in successful finds of bugs. However,
   it is recommended that for values below 90% or 80% you should take
@@ -180,8 +224,59 @@ If you find an interesting or important question missing, submit it via
   [best_practices.md#improving-stability](best_practices.md#improving-stability).
 </p></details>
 
+<details>
+  <summary id="what-are-power-schedules">What are power schedules?</summary><p>
+
+  Not every item in our queue/corpus is the same, some are more interesting,
+  others provide little value.
+  A power schedule measures how "interesting" a value is, and depending on
+  the calculated value spends more or less time mutating it.
+
+  AFL++ comes with several power schedules, initially ported from
+  [AFLFast](https://github.com/mboehme/aflfast), however, modified to be more
+  effective and several more modes added.
+
+  The most effective modes are `-p fast` (default) and `-p explore`.
+
+  If you fuzz with several parallel afl-fuzz instances, then it is beneficial
+  to assign a different schedule to each instance, however the majority should
+  be `fast` and `explore`.
+
+  It does not make sense to explain the details of the calculation and
+  reasoning behind all of the schedules. If you are interested, read the source
+  code and the AFLFast paper.
+</p></details>
+
 ## Troubleshooting
 
+<details>
+  <summary id="fatal-forkserver-is-already-up-but-an-instrumented-dlopen-library-loaded-afterwards">FATAL: forkserver is already up but an instrumented dlopen library loaded afterwards</summary><p>
+
+  It can happen that you see this error on startup when fuzzing a target:
+
+  ```
+  [-] FATAL: forkserver is already up, but an instrumented dlopen() library
+             loaded afterwards. You must AFL_PRELOAD such libraries to be able
+             to fuzz them or LD_PRELOAD to run outside of afl-fuzz.
+             To ignore this set AFL_IGNORE_PROBLEMS=1.
+  ```
+
+  As the error describes, a dlopen() call is happening in the target that is
+  loading an instrumented library after the forkserver is already in place. This
+  is a problem for afl-fuzz because when the forkserver is started, we must know
+  the map size already and it can't be changed later.
+
+  The best solution is to simply set `AFL_PRELOAD=foo.so` to the libraries that
+  are dlopen'ed (e.g., use `strace` to see which), or to set a manual forkserver
+  after the final dlopen().
+
+  If this is not a viable option, you can set `AFL_IGNORE_PROBLEMS=1` but then
+  the existing map will be used also for the newly loaded libraries, which
+  allows it to work, however, the efficiency of the fuzzing will be partially
+  degraded. Note that there is additionally `AFL_IGNORE_PROBLEMS_COVERAGE` to
+  additionally tell AFL++ to ignore any coverage from the late loaded libaries.
+</p></details>
+
 <details>
   <summary id="i-got-a-weird-compile-error-from-clang">I got a weird compile error from clang.</summary><p>
 
@@ -204,4 +299,70 @@ If you find an interesting or important question missing, submit it via
   package and because of that the AFL++ llvm plugins do not match anymore.
 
   Solution: `git pull ; make clean install` of AFL++.
-</p></details>
+</p></details>
+
+<details>
+  <summary id="afl-map-size-warning">AFL++ map size warning.</summary><p>
+
+  When you run a large instrumented program stand-alone or via afl-showmap
+  you might see a warning like the following:
+
+  ```
+  Warning: AFL++ tools might need to set AFL_MAP_SIZE to 223723 to be able to run this instrumented program if this crashes!
+  ```
+
+  Depending how the target works it might also crash afterwards.
+
+  Solution: just do an `export AFL_MAP_SIZE=(the value in the warning)`.
+</p></details>
+
+<details>
+  <summary id="linker-errors">Linker errors.</summary><p>
+
+  If you compile C++ harnesses and see `undefined reference` errors for
+  variables named `__afl_...`, e.g.:
+
+  ```
+  /usr/bin/ld: /tmp/test-d3085f.o: in function `foo::test()':
+  test.cpp:(.text._ZN3fooL4testEv[_ZN3fooL4testEv]+0x35): undefined reference to `foo::__afl_connected'
+  clang: error: linker command failed with exit code 1 (use -v to see invocation)
+  ```
+
+  Then you use AFL++ macros like `__AFL_LOOP` within a namespace and this
+  will not work.
+
+  Solution: Move that harness portion to the global namespace, e.g. before:
+  ```
+  #include <cstdio>
+  namespace foo {
+    static void test() {
+      while(__AFL_LOOP(1000)) {
+        foo::function();
+      }
+    }
+  }
+
+  int main(int argc, char** argv) {
+    foo::test();
+    return 0;
+  }
+  ```
+  after:
+  ```
+  #include <cstdio>
+  static void mytest() {
+    while(__AFL_LOOP(1000)) {
+      foo::function();
+    }
+  }
+  namespace foo {
+    static void test() {
+      mytest();
+    }
+  }
+  int main(int argc, char** argv) {
+    foo::test();
+    return 0;
+  }
+  ```
+</p></details>

docs/INSTALL.md

@@ -3,26 +3,32 @@
 ## Linux on x86
 
 An easy way to install AFL++ with everything compiled is available via docker:
-You can use the [Dockerfile](../Dockerfile) (which has gcc-10 and clang-11 -
-hence afl-clang-lto is available!) or just pull directly from the Docker Hub:
+You can use the [Dockerfile](../Dockerfile) or just pull directly from the
+Docker Hub (for x86_64 and arm64):
 
 ```shell
-docker pull aflplusplus/aflplusplus
+docker pull aflplusplus/aflplusplus:latest
 docker run -ti -v /location/of/your/target:/src aflplusplus/aflplusplus
 ```
 
-This image is automatically generated when a push to the stable repo happens.
-You will find your target source code in /src in the container.
+This image is automatically generated when a push to the stable branch happens.
+You will find your target source code in `/src` in the container.
+
+Note: you can also pull `aflplusplus/aflplusplus:dev` which is the most current
+development state of AFL++.
 
 If you want to build AFL++ yourself, you have many options. The easiest choice
 is to build and install everything:
 
+NOTE: depending on your Debian/Ubuntu/Kali/... release, replace `-14` with
+whatever llvm version is available. We recommend llvm 13 or newer.
+
 ```shell
 sudo apt-get update
-sudo apt-get install -y build-essential python3-dev automake git flex bison libglib2.0-dev libpixman-1-dev python3-setuptools
-# try to install llvm 11 and install the distro default if that fails
-sudo apt-get install -y lld-11 llvm-11 llvm-11-dev clang-11 || sudo apt-get install -y lld llvm llvm-dev clang
-sudo apt-get install -y gcc-$(gcc --version|head -n1|sed 's/.* //'|sed 's/\..*//')-plugin-dev libstdc++-$(gcc --version|head -n1|sed 's/.* //'|sed 's/\..*//')-dev
+sudo apt-get install -y build-essential python3-dev automake cmake git flex bison libglib2.0-dev libpixman-1-dev python3-setuptools cargo libgtk-3-dev
+# try to install llvm 14 and install the distro default if that fails
+sudo apt-get install -y lld-14 llvm-14 llvm-14-dev clang-14 || sudo apt-get install -y lld llvm llvm-dev clang
+sudo apt-get install -y gcc-$(gcc --version|head -n1|sed 's/\..*//'|sed 's/.* //')-plugin-dev libstdc++-$(gcc --version|head -n1|sed 's/\..*//'|sed 's/.* //')-dev
 sudo apt-get install -y ninja-build # for QEMU mode
 git clone https://github.com/AFLplusplus/AFLplusplus
 cd AFLplusplus
@@ -33,10 +39,10 @@ sudo make install
 It is recommended to install the newest available gcc, clang and llvm-dev
 possible in your distribution!
 
-Note that "make distrib" also builds instrumentation, QEMU mode, unicorn_mode
-and more. If you just want plain AFL++, then do "make all". However, compiling
-and using at least instrumentation is highly recommended for much better results
-- hence in this case choose:
+Note that `make distrib` also builds FRIDA mode, QEMU mode, unicorn_mode, and
+more. If you just want plain AFL++, then do `make all`. If you want some
+assisting tooling compiled but are not interested in binary-only targets, then
+instead choose:
 
 ```shell
 make source-only
@@ -44,11 +50,12 @@ make source-only
 
 These build targets exist:
 
-* all: just the main AFL++ binaries
-* binary-only: everything for binary-only fuzzing: qemu_mode, unicorn_mode,
-  libdislocator, libtokencap
-* source-only: everything for source code fuzzing: instrumentation,
-  libdislocator, libtokencap
+* all: the main AFL++ binaries and llvm/gcc instrumentation
+* binary-only: everything for binary-only fuzzing: frida_mode, nyx_mode,
+  qemu_mode, frida_mode, unicorn_mode, coresight_mode, libdislocator,
+  libtokencap
+* source-only: everything for source code fuzzing: nyx_mode, libdislocator,
+  libtokencap
 * distrib: everything (for both binary-only and source code fuzzing)
 * man: creates simple man pages from the help option of the programs
 * install: installs everything you have compiled with the build options above
@@ -60,113 +67,103 @@ These build targets exist:
 * unit: perform unit tests (based on cmocka)
 * help: shows these build options
 
-[Unless you are on Mac OS X](https://developer.apple.com/library/archive/qa/qa1118/_index.html),
+[Unless you are on macOS](https://developer.apple.com/library/archive/qa/qa1118/_index.html),
 you can also build statically linked versions of the AFL++ binaries by passing
-the `STATIC=1` argument to make:
+the `PERFORMANCE=1` argument to make:
 
 ```shell
-make STATIC=1
+make PERFORMANCE=1
 ```
 
 These build options exist:
 
-* STATIC - compile AFL++ static
-* ASAN_BUILD - compiles with memory sanitizer for debug purposes
+* PERFORMANCE - compile with performance options that make the binary not transferable to other systems. Recommended (except on macOS)!
+* STATIC - compile AFL++ static (does not work on macOS)
+* CODE_COVERAGE - compile the target for code coverage (see [README.llvm.md](../instrumentation/README.llvm.md))
+* ASAN_BUILD - compiles AFL++ with address sanitizer for debug purposes
+* UBSAN_BUILD - compiles AFL++ tools with undefined behaviour sanitizer for debug purposes
 * DEBUG - no optimization, -ggdb3, all warnings and -Werror
-* PROFILING - compile with profiling information (gprof)
+* LLVM_DEBUG - shows llvm deprecation warnings
+* PROFILING - compile afl-fuzz with profiling information
 * INTROSPECTION - compile afl-fuzz with mutation introspection
 * NO_PYTHON - disable python support
-* NO_SPLICING - disables splicing mutation in afl-fuzz, not recommended for
-  normal fuzzing
-* AFL_NO_X86 - if compiling on non-intel/amd platforms
-* LLVM_CONFIG - if your distro doesn't use the standard name for llvm-config
-  (e.g., Debian)
+* NO_SPLICING - disables splicing mutation in afl-fuzz, not recommended for normal fuzzing
+* NO_UTF - do not use UTF-8 for line rendering in status screen (fallback to G1 box drawing, of vanilla AFL)
+* NO_NYX - disable building nyx mode dependencies
+* NO_CORESIGHT - disable building coresight (arm64 only)
+* NO_UNICORN_ARM64 - disable building unicorn on arm64
+* AFL_NO_X86 - if compiling on non-Intel/AMD platforms
+* LLVM_CONFIG - if your distro doesn't use the standard name for llvm-config (e.g., Debian)
 
-e.g.: `make ASAN_BUILD=1`
+e.g.: `make LLVM_CONFIG=llvm-config-14`
 
-## MacOS X on x86 and arm64 (M1)
+## macOS on x86_64 and arm64
 
-MacOS X should work, but there are some gotchas due to the idiosyncrasies of the
-platform. On top of this, we have limited release testing capabilities and
-depend mostly on user feedback.
+macOS has some gotchas due to the idiosyncrasies of the platform.
 
-To build AFL, install llvm (and perhaps gcc) from brew and follow the general
-instructions for Linux. If possible, avoid Xcode at all cost.
-
-`brew install wget git make cmake llvm gdb`
-
-Be sure to setup `PATH` to point to the correct clang binaries and use the
-freshly installed clang, clang++ and gmake, e.g.:
+macOS supports SYSV shared memory used by AFL++'s instrumentation, but the
+default settings aren't sufficient. Before even building, increase
+them by running the provided script:
 
+```shell
+sudo afl-system-config
 ```
-export PATH="/usr/local/Cellar/llvm/12.0.1/bin/:$PATH"
+
+See
+[https://www.spy-hill.com/help/apple/SharedMemory.html](https://www.spy-hill.com/help/apple/SharedMemory.html)
+for documentation for the shared memory settings and how to make them permanent.
+
+Next, to build AFL++, install the following packages from brew:
+
+```shell
+brew install wget git make cmake llvm gdb coreutils
+```
+
+Depending on your macOS system + brew version, brew may be installed in different places.
+You can check with `brew info llvm` to know where, then create a variable for it:
+
+```shell
+export HOMEBREW_BASE="/opt/homebrew/opt"
+```
+
+or
+
+```shell
+export HOMEBREW_BASE="/usr/local/opt"
+```
+
+Set `PATH` to point to the brew clang, clang++, llvm-config, gmake and coreutils.
+Also use the brew clang compiler; the Xcode clang compiler must not be used.
+
+```shell
+export PATH="$HOMEBREW_BASE/coreutils/libexec/gnubin:/usr/local/bin:$HOMEBREW_BASE/llvm/bin:$PATH"
 export CC=clang
 export CXX=clang++
-gmake
-cd frida_mode
-gmake
-cd ..
-gmake install
 ```
 
-`afl-gcc` will fail unless you have GCC installed, but that is using outdated
-instrumentation anyway. You don't want that. Note that `afl-clang-lto`,
-`afl-gcc-fast` and `qemu_mode` are not working on MacOS.
+Then build following the general Linux instructions.
 
-The crash reporting daemon that comes by default with MacOS X will cause
-problems with fuzzing. You need to turn it off:
+If everything worked, you should then have `afl-clang-fast` installed, which you can check with:
 
-```
-launchctl unload -w /System/Library/LaunchAgents/com.apple.ReportCrash.plist
-sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.ReportCrash.Root.plist
+```shell
+which afl-clang-fast
 ```
 
-The `fork()` semantics on OS X are a bit unusual compared to other unix systems
+Note that `afl-clang-lto`, `afl-gcc-fast` and `qemu_mode` are not working on macOS.
+
+The crash reporting daemon that comes by default with macOS will cause
+problems with fuzzing. You need to turn it off, which you can do with `afl-system-config`.
+
+The `fork()` semantics on macOS are a bit unusual compared to other unix systems
 and definitely don't look POSIX-compliant. This means two things:
 
   - Fuzzing will be probably slower than on Linux. In fact, some folks report
     considerable performance gains by running the jobs inside a Linux VM on
-    MacOS X.
+    macOS.
   - Some non-portable, platform-specific code may be incompatible with the AFL++
     forkserver. If you run into any problems, set `AFL_NO_FORKSRV=1` in the
     environment before starting afl-fuzz.
 
-User emulation mode of QEMU does not appear to be supported on MacOS X, so
-black-box instrumentation mode (`-Q`) will not work. However, Frida mode (`-O`)
-should work on x86 and arm64 MacOS boxes.
-
-MacOS X supports SYSV shared memory used by AFL's instrumentation, but the
-default settings aren't usable with AFL++. The default settings on 10.14 seem to
-be:
-
-```bash
-$ ipcs -M
-IPC status from <running system> as of XXX
-shminfo:
-        shmmax: 4194304 (max shared memory segment size)
-        shmmin:       1 (min shared memory segment size)
-        shmmni:      32 (max number of shared memory identifiers)
-        shmseg:       8 (max shared memory segments per process)
-        shmall:    1024 (max amount of shared memory in pages)
-```
-
-To temporarily change your settings to something minimally usable with AFL++,
-run these commands as root:
-
-```bash
-sysctl kern.sysv.shmmax=8388608
-sysctl kern.sysv.shmall=4096
-```
-
-If you're running more than one instance of AFL, you likely want to make
-`shmall` bigger and increase `shmseg` as well:
-
-```bash
-sysctl kern.sysv.shmmax=8388608
-sysctl kern.sysv.shmseg=48
-sysctl kern.sysv.shmall=98304
-```
-
-See
-[http://www.spy-hill.com/help/apple/SharedMemory.html](http://www.spy-hill.com/help/apple/SharedMemory.html)
-for documentation for these settings and how to make them permanent.
+User emulation mode of QEMU does not appear to be supported on macOS, so
+black-box instrumentation mode (`-Q`) will not work. However, FRIDA mode (`-O`)
+works on both x86 and arm64 macOS boxes.

docs/README.md

@@ -0,0 +1,65 @@
+# AFL++ documentation
+
+This is the overview of the AFL++ docs content.
+
+For general information on AFL++, see the
+[README.md of the repository](../README.md).
+
+Also take a look at our [FAQ.md](FAQ.md) and
+[best_practices.md](best_practices.md).
+
+## Fuzzing targets with the source code available
+
+You can find a quickstart for fuzzing targets with the source code available in
+the [README.md of the repository](../README.md#quick-start-fuzzing-with-afl).
+
+For in-depth information on the steps of the fuzzing process, see
+[fuzzing_in_depth.md](fuzzing_in_depth.md) or click on the following
+image and select a step.
+
+![Fuzzing process overview](https://raw.githubusercontent.com/AFLplusplus/AFLplusplus/dev/docs/resources/0_fuzzing_process_overview.drawio.svg "Fuzzing process overview")
+
+For further information on instrumentation, see the
+[READMEs in the instrumentation/ folder](../instrumentation/).
+
+### Instrumenting the target
+
+For more information, click on the following image and select a step.
+
+![Instrumenting the target](https://raw.githubusercontent.com/AFLplusplus/AFLplusplus/dev/docs/resources/1_instrument_target.drawio.svg "Instrumenting the target")
+
+### Preparing the fuzzing campaign
+
+For more information, click on the following image and select a step.
+
+![Preparing the fuzzing campaign](https://raw.githubusercontent.com/AFLplusplus/AFLplusplus/dev/docs/resources/2_prepare_campaign.drawio.svg "Preparing the fuzzing campaign")
+
+### Fuzzing the target
+
+For more information, click on the following image and select a step.
+
+![Fuzzing the target](https://raw.githubusercontent.com/AFLplusplus/AFLplusplus/dev/docs/resources/3_fuzz_target.drawio.svg "Fuzzing the target")
+
+### Managing the fuzzing campaign
+
+For more information, click on the following image and select a step.
+
+![Managing the fuzzing campaign](https://raw.githubusercontent.com/AFLplusplus/AFLplusplus/dev/docs/resources/4_manage_campaign.drawio.svg "Managing the fuzzing campaign")
+
+## Fuzzing other targets
+
+To learn about fuzzing other targets, see:
+
+* Binary-only: [fuzzing_binary-only_targets.md](fuzzing_binary-only_targets.md)
+* GUI programs:
+  [best_practices.md#fuzzing-a-gui-program](best_practices.md#fuzzing-a-gui-program)
+* Libraries: [frida_mode/README.md](../frida_mode/README.md)
+* Network services:
+  [best_practices.md#fuzzing-a-network-service](best_practices.md#fuzzing-a-network-service)
+* Non-linux: [unicorn_mode/README.md](../unicorn_mode/README.md)
+
+## Additional information
+
+* Tools that help fuzzing with AFL++:
+  [third_party_tools.md](third_party_tools.md)
+* Tutorials: [tutorials.md](tutorials.md)

docs/afl-fuzz_approach.md

@@ -5,6 +5,10 @@ instrumentation-guided genetic algorithm. It uses a modified form of edge
 coverage to effortlessly pick up subtle, local-scale changes to program control
 flow.
 
+Note: If you are interested in a more current up-to-date deep dive how AFL++
+works then we commend this blog post:
+[https://blog.ritsec.club/posts/afl-under-hood/](https://blog.ritsec.club/posts/afl-under-hood/)
+
 Simplifying a bit, the overall algorithm can be summed up as:
 
 1) Load user-supplied initial test cases into the queue.
@@ -40,7 +44,7 @@ superior to blind fuzzing or coverage-only tools.
 This section provides an overview of the status screen - plus tips for
 troubleshooting any warnings and red text shown in the UI.
 
-For the general instruction manual, see [README.md](../README.md).
+For the general instruction manual, see [README.md](README.md).
 
 ### A note about colors
 
@@ -419,8 +423,8 @@ the process. Be sure to consult this file especially if any UI elements are
 highlighted in red.
 
 The fuzzing process will continue until you press Ctrl-C. At a minimum, you want
-to allow the fuzzer to complete one queue cycle, which may take anywhere from a
-couple of hours to a week or so.
+to allow the fuzzer to at least one queue cycle without any new finds, which may
+take anywhere from a couple of hours to a week or so.
 
 There are three subdirectories created within the output directory and updated
 in real-time:
@@ -483,6 +487,7 @@ directory. This includes:
 - `fuzzer_pid`        - PID of the fuzzer process
 - `cycles_done`       - queue cycles completed so far
 - `cycles_wo_finds`   - number of cycles without any new paths found
+- `time_wo_finds`     - longest time in seconds no new path was found
 - `execs_done`        - number of execve() calls attempted
 - `execs_per_sec`     - overall number of execs per second
 - `corpus_count`      - total number of entries in the queue

docs/best_practices.md

@@ -116,7 +116,7 @@ allows you to define network state with different type of data packets.
 
 ### Improving stability
 
-For fuzzing a 100% stable target that covers all edges is the best case. A 90%
+For fuzzing, a 100% stable target that covers all edges is the best case. A 90%
 stable target that covers all edges is, however, better than a 100% stable
 target that ignores 10% of the edges.
 
@@ -131,6 +131,11 @@ jitter, or is a hash map function etc., then it should not be instrumented.
 To be able to exclude these functions (based on AFL++'s measured stability), the
 following process will allow to identify functions with variable edges.
 
+Note that this is only useful for non-persistent targets!
+If a persistent target is unstable whereas when run non-persistent is fine,
+then this means that the target is keeping internal state, which is bad for
+fuzzing. Fuzz such targets **without** persistent mode.
+
 Four steps are required to do this and it also requires quite some knowledge of
 coding and/or disassembly and is effectively possible only with `afl-clang-fast`
 `PCGUARD` and `afl-clang-lto` `LTO` instrumentation.
@@ -189,4 +194,4 @@ coding and/or disassembly and is effectively possible only with `afl-clang-fast`
      Recompile, fuzz it, be happy :)
 
      This link explains this process for
-     [Fuzzbench](https://github.com/google/fuzzbench/issues/677).
+     [Fuzzbench](https://github.com/google/fuzzbench/issues/677).

docs/custom_mutators.md

@@ -38,11 +38,17 @@ performed with the custom mutator.
 
 ## 2) APIs
 
+**IMPORTANT NOTE**: If you use our C/C++ API and you want to increase the size
+of an **out_buf buffer, you have to use `afl_realloc()` for this, so include
+`include/alloc-inl.h` - otherwise afl-fuzz will crash when trying to free
+your buffers.
+
 C/C++:
 
 ```c
 void *afl_custom_init(afl_state_t *afl, unsigned int seed);
 unsigned int afl_custom_fuzz_count(void *data, const unsigned char *buf, size_t buf_size);
+void afl_custom_splice_optout(void *data);
 size_t afl_custom_fuzz(void *data, unsigned char *buf, size_t buf_size, unsigned char **out_buf, unsigned char *add_buf, size_t add_buf_size, size_t max_size);
 const char *afl_custom_describe(void *data, size_t max_description_len);
 size_t afl_custom_post_process(void *data, unsigned char *buf, size_t buf_size, unsigned char **out_buf);
@@ -52,6 +58,7 @@ int afl_custom_post_trim(void *data, unsigned char success);
 size_t afl_custom_havoc_mutation(void *data, unsigned char *buf, size_t buf_size, unsigned char **out_buf, size_t max_size);
 unsigned char afl_custom_havoc_mutation_probability(void *data);
 unsigned char afl_custom_queue_get(void *data, const unsigned char *filename);
+void (*afl_custom_fuzz_send)(void *data, const u8 *buf, size_t buf_size);
 u8 afl_custom_queue_new_entry(void *data, const unsigned char *filename_new_queue, const unsigned int *filename_orig_queue);
 const char* afl_custom_introspection(my_mutator_t *data);
 void afl_custom_deinit(void *data);
@@ -63,9 +70,12 @@ Python:
 def init(seed):
     pass
 
-def fuzz_count(buf, add_buf, max_size):
+def fuzz_count(buf):
     return cnt
 
+def splice_optout():
+    pass
+
 def fuzz(buf, add_buf, max_size):
     return mutated_out
 
@@ -93,6 +103,9 @@ def havoc_mutation_probability():
 def queue_get(filename):
     return True
 
+def fuzz_send(buf):
+    pass
+
 def queue_new_entry(filename_new_queue, filename_orig_queue):
     return False
 
@@ -105,15 +118,16 @@ def deinit():  # optional for Python
 
 ### Custom Mutation
 
-- `init`:
+- `init` (optional in Python):
 
     This method is called when AFL++ starts up and is used to seed RNG and set
     up buffers and state.
 
 - `queue_get` (optional):
 
-    This method determines whether the custom fuzzer should fuzz the current
-    queue entry or not
+    This method determines whether AFL++ should fuzz the current
+    queue entry or not: all defined custom mutators as well as
+    all AFL++'s mutators.
 
 - `fuzz_count` (optional):
 
@@ -123,13 +137,24 @@ def deinit():  # optional for Python
     for a specific queue entry, use this function. This function is most useful
     if `AFL_CUSTOM_MUTATOR_ONLY` is **not** used.
 
+- `splice_optout` (optional):
+
+    If this function is present, no splicing target is passed to the `fuzz`
+    function. This saves time if splicing data is not needed by the custom
+    fuzzing function.
+    This function is never called, just needs to be present to activate.
+
 - `fuzz` (optional):
 
-    This method performs custom mutations on a given input. It also accepts an
-    additional test case. Note that this function is optional - but it makes
-    sense to use it. You would only skip this if `post_process` is used to fix
-    checksums etc. so if you are using it, e.g., as a post processing library.
-    Note that a length > 0 *must* be returned!
+    This method performs your custom mutations on a given input.
+    The add_buf is the contents of another queue item that can be used for
+    splicing - or anything else - and can also be ignored. If you are not
+    using this additional data then define `splice_optout` (see above).
+    This function is optional.
+    Returing a length of 0 is valid and is interpreted as skipping this
+    one mutation result.
+    For non-Python: the returned output buffer is under **your** memory
+    management!
 
 - `describe` (optional):
 
@@ -159,6 +184,22 @@ def deinit():  # optional for Python
     This can return any python object that implements the buffer protocol and
     supports PyBUF_SIMPLE. These include bytes, bytearray, etc.
 
+    You can decide in the post_process mutator to not send the mutated data
+    to the target, e.g. if it is too short, too corrupted, etc. If so,
+    return a NULL buffer and zero length (or a 0 length string in Python).
+
+    NOTE: Do not make any random changes to the data in this function!
+
+    PERFORMANCE for C/C++: If possible make the changes in-place (so modify
+    the `*data` directly, and return it as `*outbuf = data`.
+
+- `fuzz_send` (optional):
+
+    This method can be used if you want to send data to the target yourself,
+    e.g. via IPC. This replaces some usage of utils/afl_proxy but requires
+    that you start the target with afl-fuzz.
+    Example: [custom_mutators/examples/custom_send.c](../custom_mutators/examples/custom_send.c)
+
 - `queue_new_entry` (optional):
 
     This methods is called after adding a new test case to the queue. If the
@@ -170,7 +211,7 @@ def deinit():  # optional for Python
     discovered if compiled with INTROSPECTION. The custom mutator can then
     return a string (const char *) that reports the exact mutations used.
 
-- `deinit`:
+- `deinit` (optional in Python):
 
     The last method to be called, deinitializing the state.
 
@@ -225,6 +266,11 @@ trimmed input. Here's a quick API description:
 Omitting any of three trimming methods will cause the trimming to be disabled
 and trigger a fallback to the built-in default trimming routine.
 
+**IMPORTANT** If you have a custom post process mutator that needs to be run
+after trimming, you must call it yourself at the end of your successful
+trimming!
+
+
 ### Environment Variables
 
 Optionally, the following environment variables are supported:
@@ -260,13 +306,41 @@ sudo apt install python-dev
 ```
 
 Then, AFL++ can be compiled with Python support. The AFL++ Makefile detects
-Python 2 and 3 through `python-config` if it is in the PATH and compiles
-`afl-fuzz` with the feature if available.
+Python3 through `python-config`/`python3-config` if it is in the PATH and
+compiles `afl-fuzz` with the feature if available.
 
-Note: for some distributions, you might also need the package `python[23]-apt`.
+Note: for some distributions, you might also need the package `python[3]-apt`.
 In case your setup is different, set the necessary variables like this:
 `PYTHON_INCLUDE=/path/to/python/include LDFLAGS=-L/path/to/python/lib make`.
 
+### Helpers
+
+For C/C++ custom mutators you get a pointer to `afl_state_t *afl` in the
+`afl_custom_init()` which contains all information that you need.
+Note that if you access it, you need to recompile your custom mutator if
+you update AFL++ because the structure might have changed!
+
+For mutators written in Python, Rust, GO, etc. there are a few environment
+variables set to help you to get started:
+
+`AFL_CUSTOM_INFO_PROGRAM` - the program name of the target that is executed.
+If your custom mutator is used with modes like Qemu (`-Q`), this will still
+contain the target program, not afl-qemu-trace.
+
+`AFL_CUSTOM_INFO_PROGRAM_INPUT` - if the `-f` parameter is used with afl-fuzz
+then this value is found in this environment variable.
+
+`AFL_CUSTOM_INFO_PROGRAM_ARGV` - this contains the parameters given to the
+target program and still has the `@@` identifier in there.
+
+Note: If `AFL_CUSTOM_INFO_PROGRAM_INPUT` is empty and `AFL_CUSTOM_INFO_PROGRAM_ARGV`
+is either empty or does not contain `@@` then the target gets the input via
+`stdin`.
+
+`AFL_CUSTOM_INFO_OUT` - This is the output directory for this fuzzer instance,
+so if `afl-fuzz` was called with `-o out -S foobar`, then this will be set to
+`out/foobar`.
+
 ### Custom Mutator Preparation
 
 For C/C++ mutators, the source code must be compiled as a shared object:
@@ -308,4 +382,4 @@ See [example.c](../custom_mutators/examples/example.c) and
     - [bruce30262/libprotobuf-mutator_fuzzing_learning](https://github.com/bruce30262/libprotobuf-mutator_fuzzing_learning/tree/master/4_libprotobuf_aflpp_custom_mutator)
     - [thebabush/afl-libprotobuf-mutator](https://github.com/thebabush/afl-libprotobuf-mutator)
 - [XML Fuzzing@NullCon 2017](https://www.agarri.fr/docs/XML_Fuzzing-NullCon2017-PUBLIC.pdf)
-    - [A bug detected by AFL + XML-aware mutators](https://bugs.chromium.org/p/chromium/issues/detail?id=930663)
+    - [A bug detected by AFL + XML-aware mutators](https://bugs.chromium.org/p/chromium/issues/detail?id=930663)

docs/docs.md

@@ -1,122 +0,0 @@
-# Restructure AFL++'s documentation
-
-## About us
-
-We are dedicated to everything around fuzzing, our main and most well known
-contribution is the fuzzer `AFL++` which is part of all major Unix
-distributions (e.g. Debian, Arch, FreeBSD, etc.) and is deployed on Google's
-oss-fuzz and clusterfuzz. It is rated the top fuzzer on Google's fuzzbench.
-
-We are four individuals from Europe supported by a large community.
-
-All our tools are open source.
-
-## About the AFL++ fuzzer project
-
-AFL++ inherited it's documentation from the original Google AFL project.
-Since then it has been massively improved - feature and performance wise -
-and although the documenation has likewise been continued it has grown out
-of proportion.
-The documentation is done by non-natives to the English language, plus
-none of us has a writer background.
-
-We see questions on AFL++ usage on mailing lists (e.g. afl-users), discord
-channels, web forums and as issues in our repository.
-
-This only increases as AFL++ has been on the top of Google's fuzzbench
-statistics (which measures the performance of fuzzers) and is now being
-integrated in Google's oss-fuzz and clusterfuzz - and is in many Unix
-packaging repositories, e.g. Debian, FreeBSD, etc.
-
-AFL++ now has 44 (!) documentation files with 13k total lines of content.
-This is way too much.
-
-Hence AFL++ needs a complete overhaul of it's documentation, both on a 
-organisation/structural level as well as the content.
-
-Overall the following actions have to be performed:
-  * Create a better structure of documentation so it is easier to find the
-    information that is being looked for, combining and/or splitting up the
-    existing documents as needed.
-  * Rewrite some documentation to remove duplication. Several information is
-    present several times in the documentation. These should be removed to
-    where needed so that we have as little bloat as possible.
-  * The documents have been written and modified by a lot of different people,
-    most of them non-native English speaker. Hence an overall review where
-    parts should be rewritten has to be performed and then the rewrite done.
-  * Create a cheat-sheet for a very short best-setup build and run of AFL++
-  * Pictures explain more than 1000 words. We need at least 4 images that
-    explain the workflow with AFL++:
-      - the build workflow
-      - the fuzzing workflow
-      - the fuzzing campaign management workflow
-      - the overall workflow that is an overview of the above
-      - maybe more? where the technical writes seems it necessary for
-        understanding.
-
-Requirements:
-  * Documentation has to be in Markdown format
-  * Images have to be either in SVG or PNG format.
-  * All documentation should be (moved) in(to) docs/
-
-The project does not require writing new documentation or tutorials beside the
-cheat sheet. The technical information for the cheat sheet will be provided by
-us.
-
-## Metrics
-
-AFL++ is a the highest performant fuzzer publicly available - but is also the
-most feature rich and complex. With the publicity of AFL++' success and
-deployment in Google projects internally and externally and availability as
-a package on most Linux distributions we see more and more issues being
-created and help requests on our Discord channel that would not be
-necessary if people would have read through all our documentation - which
-is unrealistic.
-
-We expect the the new documenation after this project to be cleaner, easier
-accessible and lighter to digest by our users, resulting in much less
-help requests. On the other hand the amount of users using AFL++ should
-increase as well as it will be more accessible which would also increase
-questions again - but overall resulting in a reduction of help requests.
-
-In numbers: we currently have per week on average 5 issues on Github,
-10 questions on discord and 1 on mailing lists that would not be necessary
-with perfect documentation and perfect people.
-
-We would consider this project a success if afterwards we only have
-2 issues on Github and 3 questions on discord anymore that would be answered
-by reading the documentation. The mailing list is usually used by the most
-novice users and we don't expect any less questions there.
-
-## Project Budget
-
-We have zero experience with technical writers, so this is very hard for us
-to calculate. We expect it to be a lot of work though because of the amount
-of documentation we have that needs to be restructured and partially rewritten
-(44 documents with 13k total lines of content).
-
-We assume the daily rate of a very good and experienced technical writer in
-times of a pandemic to be ~500$ (according to web research), and calculate
-the overall amout of work to be around 20 days for everything incl. the
-graphics (but again - this is basically just guessing).
-
-Technical Writer                                              10000$
-Volunteer stipends                                                0$ (waved)
-T-Shirts for the top 10 contributors and helpers to this documentation project:
-	10 AFL++ logo t-shirts 		20$ each		200$
-	10 shipping cost of t-shirts    10$ each		100$
-
-Total: 10.300$
-(in the submission form 10.280$ was entered)
-
-## Additional Information
-
-We have participated in Google Summer of Code in 2020 and hope to be selected
-again in 2021.
-
-We have no experience with a technical writer, but we will support that person
-with video calls, chats, emails and messaging, provide all necessary information
-and write technical contents that is required for the success of this project.
-It is clear to us that a technical writer knows how to write, but cannot know
-the technical details in a complex tooling like in AFL++. This guidance, input,
-etc. has to come from us.

docs/docs2.md

@@ -1,124 +0,0 @@
-# Restructure AFL++'s documentation - Case Study
-
-## Problem statement
-
-AFL++ inherited it's documentation from the original Google AFL project.
-Since then it has been massively improved - feature and performance wise -
-and although the documenation has likewise been continued it has grown out
-of proportion.
-The documentation is done by non-natives to the English language, plus
-none of us has a writer background.
-
-We see questions on AFL++ usage on mailing lists (e.g. afl-users), discord
-channels, web forums and as issues in our repository.
-Most of them could be answered if people would read through all the
-documentation.
-
-This only increases as AFL++ has been on the top of Google's fuzzbench
-statistics (which measures the performance of fuzzers) and has been
-integrated in Google's oss-fuzz and clusterfuzz - and is in many Unix
-packaging repositories, e.g. Debian, FreeBSD, etc.
-
-AFL++ had 44 (!) documentation files with 13k total lines of content.
-This was way too much.
-
-## Proposal abstract
-
-AFL++'s documentatin needs a complete overhaul, both on a
-organisation/structural level as well as the content.
-
-Overall the following actions have to be performed:
-  * Create a better structure of documentation so it is easier to find the
-    information that is being looked for, combining and/or splitting up the
-    existing documents as needed.
-  * Rewrite some documentation to remove duplication. Several information is
-    present several times in the documentation. These should be removed to
-    where needed so that we have as little bloat as possible.
-  * The documents have been written and modified by a lot of different people,
-    most of them non-native English speaker. Hence an overall review where
-    parts should be rewritten has to be performed and then the rewrite done.
-  * Create a cheat-sheet for a very short best-setup build and run of AFL++
-  * Pictures explain more than 1000 words. We need at least 4 images that
-    explain the workflow with AFL++:
-      - the build workflow
-      - the fuzzing workflow
-      - the fuzzing campaign management workflow
-      - the overall workflow that is an overview of the above
-      - maybe more? where the technical writes seems it necessary for
-        understanding.
-
-Requirements:
-  * Documentation has to be in Markdown format
-  * Images have to be either in SVG or PNG format.
-  * All documentation should be (moved) in(to) docs/
-
-## Project description
-
-We created our proposal by discussing in the team what the issues are and
-what was needed to fix it.
-This resulted in the [project proposal](https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/docs.md).
-
-We did not want to be selected by a writer but select a writer ourselves, so
-we combed through the list and reviewed every single one of them.
-We were not looking for coders writing technical documentation, but rather
-someone who is an experienced writer and has documented experience with
-structuring documentation.
-Few fit that profile and we sent out messages to 6 people.
-We finally decided on Jana because she had a strong background in technical
-documentation and structuring information.
-She had no technical experience in fuzzing whatsoever, but we saw that as
-a plus - of course this made the whole process longer to explain details,
-but overall ensured that the documentation can be read by (mostly) everyone.
-
-We communicated via video calls every few weeks and she kept a public kanban
-board about her todos, additional we used a Signal channel.
-Her changes were imported via PRs where we discussed details.
-
-The project was off to a good start, but then Jana got pregnant with serious
-side effects that made working impossible for her for a longer time, hence
-the schedule was thrown back.
-She offered to rescind the payment and we select a new writer, but we saw
-little opportunity in that, as that would mean a new selection of a writer,
-someone else with a different vision on how the result should look like so
-basically a full restart of the project and a large impact on our own time.
-So we agreed on - after discussion with the Google GSoD team - that she
-continues the project after the GSoD completion deadline as best as she can.
-
-End of November she took one week off from work and fully dedicated her time
-for the documenation which brought the project a big step forward.
-
-Originally the project should have been ended begin of October, but now - at
-nearing the end of November, we are at about 85% completion, with the end
-being expected around mid of December.
-
-## Metrics
-
-We merged most of the changes in our development branch and are getting 
-close to a state where the user documentation part is completed and we
-can create a new release. Only then the new documentatin is actually visible
-to users. Therefore no metrics could be collected so far.
-
-We plan on a user-assisted QA review end of November/begin of December.
-
-The documentation was reviewed by a few test users so far however who gave
-it a thumbs up.
-
-## Summary
-
-The GSoD project itself is great. It helps to get the documentation back in
-line.
-It was and is a larger time investment from our side, but we expected that.
-When the project is done, the documentation will be more accessible by users
-and also need less maintenance by us.
-There is still follow-up work to be done by us afterwards (web site for the
-docs, etc.).
-
-Not sure what we would do differently next time. I think we prepared best as
-possible and reacted best as possible to the unexpected.
-
-Recommendations for other organizations who would like to participate in GSoD:
- - expect the process to take a larger part of your time. the writer needs
-   your full support.
- - have someone dedicated from the dev/org side to support, educate and
-   supervice the writer
- - set clear goals and expectations

docs/env_variables.md

@@ -105,7 +105,8 @@ fairly broad use of environment variables instead:
       within your program at a certain point (such as at the end of an
       `__AFL_LOOP()`), you can run the macro  `__AFL_LEAK_CHECK();` which will
       cause an abort if any memory is leaked (you can combine this with the
-      `LSAN_OPTIONS=...` suppression option to suppress some known leaks).
+      `__AFL_LSAN_OFF();` and `__AFL_LSAN_ON();` macros to avoid checking for
+      memory leaks from memory allocated between these two calls.
     - `AFL_USE_MSAN=1` - activates the memory sanitizer (uninitialized memory)
     - `AFL_USE_TSAN=1` - activates the thread sanitizer to find thread race
       conditions
@@ -128,9 +129,18 @@ subset of the settings discussed in section 1, with the exception of:
     write all constant string comparisons to this file to be used later with
     afl-fuzz' `-x` option.
 
+  - An option to `AFL_LLVM_DICT2FILE` is `AFL_LLVM_DICT2FILE_NO_MAIN=1` which
+    skill not parse `main()`.
+
   - `TMPDIR` and `AFL_KEEP_ASSEMBLY`, since no temporary assembly files are
     created.
 
+  - LLVM modes compiling C++ will normally set rpath in the binary if LLVM is
+    not in a usual location (/usr or /lib). Setting `AFL_LLVM_NO_RPATH=1`
+    disables this behaviour in case it isn't desired. For example, the compiling
+    toolchain might be in a custom location, but the target machine has LLVM
+    runtime libs in the search path.
+
 Then there are a few specific features that are only available in
 instrumentation mode:
 
@@ -152,13 +162,15 @@ Available options:
   - LTO - LTO instrumentation
   - NATIVE - clang's original pcguard based instrumentation
   - NGRAM-x - deeper previous location coverage (from NGRAM-2 up to NGRAM-16)
-  - PCGUARD - our own pcgard based instrumentation (default)
+  - PCGUARD - our own pcguard based instrumentation (default)
 
 #### CMPLOG
 
 Setting `AFL_LLVM_CMPLOG=1` during compilation will tell afl-clang-fast to
 produce a CmpLog binary.
 
+For afl-gcc-fast, set `AFL_GCC_CMPLOG=1` instead.
+
 For more information, see
 [instrumentation/README.cmplog.md](../instrumentation/README.cmplog.md).
 
@@ -184,6 +196,19 @@ in the specified file.
 For more information, see
 [instrumentation/README.instrument_list.md](../instrumentation/README.instrument_list.md).
 
+#### INJECTIONS
+
+This feature is able to find simple injection vulnerabilities in insecure
+calls to mysql/mariadb/nosql/postgresql/ldap and XSS in libxml2.
+
+  - Setting `AFL_LLVM_INJECTIONS_ALL` will enable all injection hooking
+
+  - Setting `AFL_LLVM_INJECTIONS_SQL` will enable SQL injection hooking
+
+  - Setting `AFL_LLVM_INJECTIONS_LDAP` will enable LDAP injection hooking
+
+  - Setting `AFL_LLVM_INJECTIONS_XSS` will enable XSS injection hooking
+
 #### LAF-INTEL
 
 This great feature will split compares into series of single byte comparisons to
@@ -223,6 +248,9 @@ use (which only ever the author of this LTO implementation will use). These are
 used if several separated instrumentations are performed which are then later
 combined.
 
+  - `AFL_LLVM_LTO_CALLER` activates collision free CALLER instrumentation
+  - `AFL_LLVM_LTO_CALLER` sets the maximum mumber of single block functions
+    to dig deeper into a real function. Default 0.
   - `AFL_LLVM_DOCUMENT_IDS=file` will document to a file which edge ID was given
     to which function. This helps to identify functions with variable bytes or
     which functions were touched by an input.
@@ -234,7 +262,9 @@ combined.
     the default `0x10000`. A value of 0 or empty sets the map address to be
     dynamic (the original AFL way, which is slower).
   - `AFL_LLVM_MAP_DYNAMIC` sets the shared memory address to be dynamic.
-
+  - `AFL_LLVM_LTO_SKIPINIT` skips adding initialization code. Some global vars
+    (e.g. the highest location ID) are not injected. Needed to instrument with
+    [WAFL](https://github.com/fgsect/WAFL.git).
   For more information, see
   [instrumentation/README.lto.md](../instrumentation/README.lto.md).
 
@@ -283,12 +313,24 @@ mode.
     TMPDIR=$PWD/assembly_here AFL_KEEP_ASSEMBLY=1 make clean all
     ```
 
-  - GCC_PLUGIN mode only: Setting `AFL_GCC_INSTRUMENT_FILE` with a filename will
-    only instrument those files that match the names listed in this file (one
-    filename per line). See
+  - GCC_PLUGIN mode only: Setting `AFL_GCC_INSTRUMENT_FILE` or
+    `AFL_GCC_ALLOWLIST` with a filename will only instrument those files that
+    match the names listed in this file (one filename per line).
+
+    Setting `AFL_GCC_DENYLIST` or `AFL_GCC_BLOCKLIST` with a file name and/or
+    function will only skip those files that match the names listed in the
+    specified file. See
     [instrumentation/README.instrument_list.md](../instrumentation/README.instrument_list.md)
     for more information.
 
+    Setting `AFL_GCC_OUT_OF_LINE=1` will instruct afl-gcc-fast to instrument the
+    code with calls to an injected subroutine instead of the much more efficient
+    inline instrumentation.
+
+    Setting `AFL_GCC_SKIP_NEVERZERO=1` will not implement the skip zero test. If
+    the target performs only a few loops, then this will give a small
+    performance boost.
+
 ## 4) Settings for afl-fuzz
 
 The main fuzzer binary accepts several options that disable a couple of sanity
@@ -307,6 +349,9 @@ checks or alter some of the more exotic semantics of the tool:
     (`-i in`). This is an important feature to set when resuming a fuzzing
     session.
 
+  - `AFL_IGNORE_SEED_PROBLEMS` will skip over crashes and timeouts in the seeds
+    instead of exiting.
+
   - Setting `AFL_CRASH_EXITCODE` sets the exit code AFL++ treats as crash. For
     example, if `AFL_CRASH_EXITCODE='-1'` is set, each input resulting in a `-1`
     return code (i.e. `exit(-1)` got called), will be treated as if a crash had
@@ -336,9 +381,21 @@ checks or alter some of the more exotic semantics of the tool:
   - Setting `AFL_DISABLE_TRIM` tells afl-fuzz not to trim test cases. This is
     usually a bad idea!
 
+  - Setting `AFL_DISABLE_REDUNDANT` disables any queue items that are redundant.
+    This can be useful with huge queues.
+
+  - Setting `AFL_KEEP_TIMEOUTS` will keep longer running inputs if they reach
+    new coverage
+
+  - On the contrary, if you are not interested in any timeouts, you can set
+    `AFL_IGNORE_TIMEOUTS` to get a bit of speed instead.
+
   - `AFL_EXIT_ON_SEED_ISSUES` will restore the vanilla afl-fuzz behavior which
     does not allow crashes or timeout seeds in the initial -i corpus.
 
+  - `AFL_CRASHING_SEEDS_AS_NEW_CRASH` will treat crashing seeds as new crash. these 
+    crashes will be written to crashes folder as op:dry_run, and orig:<seed_file_name>.
+
   - `AFL_EXIT_ON_TIME` causes afl-fuzz to terminate if no new paths were found
     within a specified period of time (in seconds). May be convenient for some
     types of automated jobs.
@@ -360,10 +417,10 @@ checks or alter some of the more exotic semantics of the tool:
     valid terminal was detected (for virtual consoles).
 
   - Setting `AFL_FORKSRV_INIT_TMOUT` allows you to specify a different timeout
-    to wait for the forkserver to spin up. The default is the `-t` value times
-    `FORK_WAIT_MULT` from `config.h` (usually 10), so for a `-t 100`, the
-    default would wait for `1000` milliseconds. Setting a different time here is
-    useful if the target has a very slow startup time, for example, when doing
+    to wait for the forkserver to spin up. The specified value is the new timeout, in milliseconds.
+    The default is the `-t` value times `FORK_WAIT_MULT` from `config.h` (usually 10), so for a `-t 100`, the default would wait for `1000` milliseconds.
+    The `AFL_FORKSRV_INIT_TMOUT` value does not get multiplied. It overwrites the initial timeout afl-fuzz waits for the target to come up with a constant time.
+    Setting a different time here is useful if the target has a very slow startup time, for example, when doing
     full-system fuzzing or emulation, but you don't want the actual runs to wait
     too long for timeouts.
 
@@ -380,24 +437,45 @@ checks or alter some of the more exotic semantics of the tool:
 
   - If afl-fuzz encounters an incorrect fuzzing setup during a fuzzing session
     (not at startup), it will terminate. If you do not want this, then you can
-    set `AFL_IGNORE_PROBLEMS`.
+    set `AFL_IGNORE_PROBLEMS`. If you additionally want to also ignore coverage
+    from late loaded libraries, you can set `AFL_IGNORE_PROBLEMS_COVERAGE`.
 
-  - When running in the `-M` or `-S` mode, setting `AFL_IMPORT_FIRST` causes the
-    fuzzer to import test cases from other instances before doing anything else.
-    This makes the "own finds" counter in the UI more accurate. Beyond counter
-    aesthetics, not much else should change.
+  - When running with multiple afl-fuzz or with `-F`,  setting `AFL_IMPORT_FIRST`
+    causes the fuzzer to import test cases from other instances before doing
+    anything else. This makes the "own finds" counter in the UI more accurate.
 
-  - `AFL_KILL_SIGNAL`: Set the signal ID to be delivered to child processes on
-    timeout. Unless you implement your own targets or instrumentation, you
+  - When running with multiple afl-fuzz or with `-F`,  setting `AFL_FINAL_SYNC`
+    will cause the fuzzer to perform a final import of test cases when
+    terminating. This is beneficial for `-M` main fuzzers to ensure it has all
+    unique test cases and hence you only need to `afl-cmin` this single
+    queue.
+
+  - Setting `AFL_INPUT_LEN_MIN` and `AFL_INPUT_LEN_MAX` are an alternative to
+    the afl-fuzz -g/-G command line option to control the minimum/maximum
+    of fuzzing input generated.
+
+  - `AFL_KILL_SIGNAL`: Set the signal ID to be delivered to child processes
+    on timeout. Unless you implement your own targets or instrumentation, you
     likely don't have to set it. By default, on timeout and on exit, `SIGKILL`
     (`AFL_KILL_SIGNAL=9`) will be delivered to the child.
 
+  - `AFL_FORK_SERVER_KILL_SIGNAL`: Set the signal ID to be delivered to the
+    fork server when AFL++ is terminated. Unless you implement your
+    fork server, you likely do not have to set it. By default, `SIGTERM`
+    (`AFL_FORK_SERVER_KILL_SIGNAL=15`) will be delivered to the fork server.
+    If only `AFL_KILL_SIGNAL` is provided, `AFL_FORK_SERVER_KILL_SIGNAL` will
+    be set to same value as `AFL_KILL_SIGNAL` to provide backward compatibility.
+    If `AFL_FORK_SERVER_KILL_SIGNAL` is also set, it takes precedence.
+
+    NOTE: Uncatchable signals, such as `SIGKILL`, cause child processes of
+    the fork server to be orphaned and leaves them in a zombie state.
+
   - `AFL_MAP_SIZE` sets the size of the shared map that afl-analyze, afl-fuzz,
     afl-showmap, and afl-tmin create to gather instrumentation data from the
     target. This must be equal or larger than the size the target was compiled
     with.
 
-  - Setting `AFL_MAX_DET_EXRAS` will change the threshold at what number of
+  - Setting `AFL_MAX_DET_EXTRAS` will change the threshold at what number of
     elements in the `-x` dictionary and LTO autodict (combined) the
     probabilistic mode will kick off. In probabilistic mode, not all dictionary
     entries will be used all of the time for fuzzing mutations to not slow down
@@ -433,14 +511,20 @@ checks or alter some of the more exotic semantics of the tool:
     normally done when starting up the forkserver and causes a pretty
     significant performance drop.
 
-  - `AFL_NO_SNAPSHOT` will advice afl-fuzz not to use the snapshot feature if
+  - `AFL_NO_SNAPSHOT` will advise afl-fuzz not to use the snapshot feature if
     the snapshot lkm is loaded.
 
   - Setting `AFL_NO_UI` inhibits the UI altogether and just periodically prints
     some basic stats. This behavior is also automatically triggered when the
     output from afl-fuzz is redirected to a file or to a pipe.
 
-  - In QEMU mode (-Q) and Frida mode (-O), `AFL_PATH` will be searched for
+  - Setting `AFL_NO_STARTUP_CALIBRATION` will skip the initial calibration
+    of all starting seeds, and start fuzzing at once. Use with care, this
+    degrades the fuzzing performance!
+
+  - Setting `AFL_NO_WARN_INSTABILITY` will suppress instability warnings.
+
+  - In QEMU mode (-Q) and FRIDA mode (-O), `AFL_PATH` will be searched for
     afl-qemu-trace and afl-frida-trace.so.
 
   - If you are using persistent mode (you should, see
@@ -448,7 +532,7 @@ checks or alter some of the more exotic semantics of the tool:
     some targets keep inherent state due which a detected crash test case does
     not crash the target again when the test case is given. To be able to still
     re-trigger these crashes, you can use the `AFL_PERSISTENT_RECORD` variable
-    with a value of how many previous fuzz cases to keep prio a crash. If set to
+    with a value of how many previous fuzz cases to keep prior a crash. If set to
     e.g., 10, then the 9 previous inputs are written to out/default/crashes as
     RECORD:000000,cnt:000000 to RECORD:000000,cnt:000008 and
     RECORD:000000,cnt:000009 being the crash case. NOTE: This option needs to be
@@ -466,6 +550,9 @@ checks or alter some of the more exotic semantics of the tool:
     use a custom afl-qemu-trace or if you need to modify the afl-qemu-trace
     arguments.
 
+  - `AFL_SHA1_FILENAMES` causes AFL++ to generate files named by the SHA1 hash
+    of their contents, rather than use the standard `id:000000,...` names.
+
   - `AFL_SHUFFLE_QUEUE` randomly reorders the input queue on startup. Requested
     by some users for unorthodox parallelized fuzzing setups, but not advisable
     otherwise.
@@ -497,11 +584,23 @@ checks or alter some of the more exotic semantics of the tool:
     (empty/non present) will add no tags to the metrics. For more information,
     see [rpc_statsd.md](rpc_statsd.md).
 
+  - `AFL_SYNC_TIME` allows you to specify a different minimal time (in minutes)
+    between fuzzing instances synchronization. Default sync time is 30 minutes,
+    note that time is halved for -M main nodes.
+
+  - `AFL_NO_SYNC` disables any syncing whatsoever and takes priority on all
+    other syncing parameters.
+
   - Setting `AFL_TARGET_ENV` causes AFL++ to set extra environment variables for
     the target binary. Example: `AFL_TARGET_ENV="VAR1=1 VAR2='a b c'" afl-fuzz
     ... `. This exists mostly for things like `LD_LIBRARY_PATH` but it would
     theoretically allow fuzzing of AFL++ itself (with 'target' AFL++ using some
-    AFL_ vars that would disrupt work of 'fuzzer' AFL++).
+    AFL_ vars that would disrupt work of 'fuzzer' AFL++). Note that when using
+    QEMU mode, the `AFL_TARGET_ENV` environment variables will apply to QEMU, as
+    well as the target binary. Therefore, in this case, you might want to use
+    QEMU's `QEMU_SET_ENV` environment variable (see QEMU's documentation because
+    the format is different from `AFL_TARGET_ENV`) to apply the environment
+    variables to the target and not QEMU.
 
   - `AFL_TESTCACHE_SIZE` allows you to override the size of `#define
     TESTCASE_CACHE` in config.h. Recommended values are 50-250MB - or more if
@@ -515,9 +614,27 @@ checks or alter some of the more exotic semantics of the tool:
   - Setting `AFL_TRY_AFFINITY` tries to attempt binding to a specific CPU core
     on Linux systems, but will not terminate if that fails.
 
-  - Outdated environment variables that are not supported anymore:
-    - `AFL_DEFER_FORKSRV`
-    - `AFL_PERSISTENT`
+  - The following environment variables are only needed if you implemented
+    your own forkserver or persistent mode, or if __AFL_LOOP or __AFL_INIT
+    are in a shared library and not the main binary:
+    - `AFL_DEFER_FORKSRV` enforces a deferred forkserver even if none was
+      detected in the target binary
+    - `AFL_PERSISTENT` enforces persistent mode even if none was detected
+      in the target binary
+
+  - If you need an early forkserver in your target because of early
+    constructors in your target, you can set `AFL_EARLY_FORKSERVER`.
+    Note that this is not a compile time option but a runtime option :-)
+
+  - Set `AFL_PIZZA_MODE` to 1 to enable the April 1st stats menu, set to -1
+    to disable although it is 1st of April. 0 is the default and means enable
+    on the 1st of April automatically.
+
+  - If you need a specific interval to update fuzzer_stats file, you can
+    set `AFL_FUZZER_STATS_UPDATE_INTERVAL` to the interval in seconds you'd
+    the file to be updated.
+    Note that will not be exact and with slow targets it can take seconds
+    until there is a slice for the time test.
 
 ## 5) Settings for afl-qemu-trace
 
@@ -545,6 +662,14 @@ The QEMU wrapper used to instrument binary-only code supports several settings:
   - Setting `AFL_INST_LIBS` causes the translator to also instrument the code
     inside any dynamically linked libraries (notably including glibc).
 
+  - You can use `AFL_QEMU_INST_RANGES=0xaaaa-0xbbbb,0xcccc-0xdddd` to just
+    instrument specific memory locations, e.g. a specific library.
+    Excluding ranges takes priority over any included ranges or `AFL_INST_LIBS`.
+
+  - You can use `AFL_QEMU_EXCLUDE_RANGES=0xaaaa-0xbbbb,0xcccc-0xdddd` to **NOT**
+    instrument specific memory locations, e.g. a specific library.
+    Excluding ranges takes priority over any included ranges or `AFL_INST_LIBS`.
+
   - It is possible to set `AFL_INST_RATIO` to skip the instrumentation on some
     of the basic blocks, which can be useful when dealing with very complex
     binaries.
@@ -579,6 +704,10 @@ The QEMU wrapper used to instrument binary-only code supports several settings:
     emulation" variables (e.g., `QEMU_STACK_SIZE`), but there should be no
     reason to touch them.
 
+  - Normally a `README.txt` is written to the `crashes/` directory when a first
+    crash is found. Setting `AFL_NO_CRASH_README` will prevent this. Useful when
+    counting crashes based on a file count in that directory.
+
 ## 7) Settings for afl-frida-trace
 
 The FRIDA wrapper used to instrument binary-only code supports many of the same
@@ -602,6 +731,8 @@ support.
 * `AFL_FRIDA_INST_JIT` - Enable the instrumentation of Just-In-Time compiled
   code. Code is considered to be JIT if the executable segment is not backed by
   a file.
+* `AFL_FRIDA_INST_NO_DYNAMIC_LOAD` - Don't instrument the code loaded late at
+  runtime. Strictly limits instrumentation to what has been included.
 * `AFL_FRIDA_INST_NO_OPTIMIZE` - Don't use optimized inline assembly coverage
   instrumentation (the default where available). Required to use
   `AFL_FRIDA_INST_TRACE`.
@@ -645,8 +776,8 @@ support.
 * `AFL_FRIDA_STALKER_ADJACENT_BLOCKS` - Configure the number of adjacent blocks
   to fetch when generating instrumented code. By fetching blocks in the same
   order they appear in the original program, rather than the order of execution
-  should help reduce locallity and adjacency. This includes allowing us to
-  vector between adjancent blocks using a NOP slide rather than an immediate
+  should help reduce locality and adjacency. This includes allowing us to
+  vector between adjacent blocks using a NOP slide rather than an immediate
   branch.
 * `AFL_FRIDA_STALKER_IC_ENTRIES` - Configure the number of inline cache entries
   stored along-side branch instructions which provide a cache to avoid having to

docs/features.md

@@ -1,39 +1,96 @@
 # Important features of AFL++
 
 AFL++ supports llvm from 3.8 up to version 12, very fast binary fuzzing with
-QEMU 5.1 with laf-intel and redqueen, FRIDA mode, unicorn mode, gcc plugin, full
+QEMU 5.1 with laf-intel and Redqueen, FRIDA mode, unicorn mode, gcc plugin, full
 *BSD, Mac OS, Solaris and Android support and much, much, much more.
 
-| Feature/Instrumentation  | afl-gcc | llvm      | gcc_plugin | FRIDA mode(9)    | QEMU mode(10)    |unicorn_mode(10)  |coresight_mode(11)|
-| -------------------------|:-------:|:---------:|:----------:|:----------------:|:----------------:|:----------------:|:----------------:|
-| Threadsafe counters      |         |     x(3)  |            |                  |                  |                  |                  |
-| NeverZero                | x86[_64]|     x(1)  |     x      |         x        |         x        |         x        |                  |
-| Persistent Mode          |         |     x     |     x      | x86[_64]/arm64   | x86[_64]/arm[64] |         x        |                  |
-| LAF-Intel / CompCov      |         |     x     |            |                  | x86[_64]/arm[64] | x86[_64]/arm[64] |                  |
-| CmpLog                   |         |     x     |            | x86[_64]/arm64   | x86[_64]/arm[64] |                  |                  |
-| Selective Instrumentation|         |     x     |     x      |         x        |         x        |                  |                  |
-| Non-Colliding Coverage   |         |     x(4)  |            |                  |        (x)(5)    |                  |                  |
-| Ngram prev_loc Coverage  |         |     x(6)  |            |                  |                  |                  |                  |
-| Context Coverage         |         |     x(6)  |            |                  |                  |                  |                  |
-| Auto Dictionary          |         |     x(7)  |            |                  |                  |                  |                  |
-| Snapshot LKM Support     |         |    (x)(8) |    (x)(8)  |                  |        (x)(5)    |                  |                  |
-| Shared Memory Test cases |         |     x     |     x      | x86[_64]/arm64   |         x        |         x        |                  |
+## Features and instrumentation
 
-1. default for LLVM >= 9.0, environment variable for older version due an
+| Feature/Instrumentation       | afl-gcc  | llvm      | gcc_plugin | FRIDA mode(9)  | QEMU mode(10)    | unicorn_mode(10) | nyx_mode(12) | coresight_mode(11) |
+| ------------------------------|:--------:|:---------:|:----------:|:--------------:|:----------------:|:----------------:|:------------:|:------------------:|
+| Threadsafe counters [A]       |          |    x(3)   |            |                |                  |                  |       x      |                    |
+| NeverZero           [B]       | x86[_64] |    x(1)   |      x     |        x       |         x        |         x        |              |                    |
+| Persistent Mode     [C]       |          |     x     |      x     | x86[_64]/arm64 | x86[_64]/arm[64] |         x        |              |                    |
+| LAF-Intel / CompCov [D]       |          |     x     |            |                | x86[_64]/arm[64] | x86[_64]/arm[64] |   x86[_64]   |                    |
+| CmpLog              [E]       |          |     x     |      x     | x86[_64]/arm64 | x86[_64]/arm[64] |                  |              |                    |
+| Selective Instrumentation [F] |          |     x     |      x     |        x       |         x        |                  |              |                    |
+| Non-Colliding Coverage    [G] |          |    x(4)   |            |                |       (x)(5)     |                  |              |                    |
+| Ngram prev_loc Coverage   [H] |          |    x(6)   |            |                |                  |                  |              |                    |
+| Context Coverage    [I]       |          |    x(6)   |            |                |                  |                  |              |                    |
+| Auto Dictionary     [J]       |          |    x(7)   |            |                |                  |                  |              |                    |
+| Snapshot Support    [K]       |          |   (x)(8)  |   (x)(8)   |                |       (x)(5)     |                  |       x      |                    |
+| Shared Memory Test cases  [L] |          |     x     |      x     | x86[_64]/arm64 |         x        |         x        |       x      |                    |
+
+## More information about features
+
+A. Default is not thread-safe coverage counter updates for better performance,
+   see [instrumentation/README.llvm.md](../instrumentation/README.llvm.md)
+
+B. On wrapping coverage counters (255 + 1), skip the 0 value and jump to 1
+   instead. This has shown to give better coverage data and is the default; see
+   [instrumentation/README.llvm.md](../instrumentation/README.llvm.md).
+
+C. Instead of forking, reiterate the fuzz target function in a loop (like
+   `LLVMFuzzerTestOneInput`. Great speed increase but only works with target
+   functions that do not keep state, leak memory, or exit; see
+   [instrumentation/README.persistent_mode.md](../instrumentation/README.persistent_mode.md)
+
+D. Split any non-8-bit comparison to 8-bit comparison; see
+   [instrumentation/README.laf-intel.md](../instrumentation/README.laf-intel.md)
+
+E. CmpLog is our enhanced
+   [Redqueen](https://www.ndss-symposium.org/ndss-paper/redqueen-fuzzing-with-input-to-state-correspondence/)
+   implementation, see
+   [instrumentation/README.cmplog.md](../instrumentation/README.cmplog.md)
+
+F. Similar and compatible to clang 13+ sancov sanitize-coverage-allow/deny but
+   for all llvm versions and all our compile modes, only instrument what should
+   be instrumented, for more speed, directed fuzzing and less instability; see
+   [instrumentation/README.instrument_list.md](../instrumentation/README.instrument_list.md)
+
+G. Vanilla AFL uses coverage where edges could collide to the same coverage
+   bytes the larger the target is. Our default instrumentation in LTO and
+   afl-clang-fast (PCGUARD) uses non-colliding coverage that also makes it
+   faster. Vanilla AFL style is available with `AFL_LLVM_INSTRUMENT=AFL`; see
+   [instrumentation/README.llvm.md](../instrumentation/README.llvm.md).
+
+H.+I. Alternative coverage based on previous edges (NGRAM) or depending on the
+   caller (CTX), based on
+   [https://www.usenix.org/system/files/raid2019-wang-jinghan.pdf](https://www.usenix.org/system/files/raid2019-wang-jinghan.pdf);
+   see [instrumentation/README.llvm.md](../instrumentation/README.llvm.md).
+
+J. An LTO feature that creates a fuzzing dictionary based on comparisons found
+   during compilation/instrumentation. Automatic feature :) See
+   [instrumentation/README.lto.md](../instrumentation/README.lto.md)
+
+K. The snapshot feature requires a kernel module that was a lot of work to get
+   right and maintained so it is no longer supported. We have
+   [nyx_mode](../nyx_mode/README.md) instead.
+
+L. Faster fuzzing and less kernel syscall overhead by in-memory fuzz testcase
+   delivery, see
+   [instrumentation/README.persistent_mode.md](../instrumentation/README.persistent_mode.md)
+
+## More information about instrumentation
+
+1. Default for LLVM >= 9.0, environment variable for older version due an
    efficiency bug in previous llvm versions
 2. GCC creates non-performant code, hence it is disabled in gcc_plugin
-3. with `AFL_LLVM_THREADSAFE_INST`, disables NeverZero
-4. with pcguard mode and LTO mode for LLVM 11 and newer
-5. upcoming, development in the branch
-6. not compatible with LTO instrumentation and needs at least LLVM v4.1
-7. automatic in LTO mode with LLVM 11 and newer, an extra pass for all LLVM
+3. With `AFL_LLVM_THREADSAFE_INST`, disables NeverZero
+4. With pcguard mode and LTO mode for LLVM 11 and newer
+5. Upcoming, development in the branch
+6. Not compatible with LTO instrumentation and needs at least LLVM v4.1
+7. Automatic in LTO mode with LLVM 11 and newer, an extra pass for all LLVM
    versions that write to a file to use with afl-fuzz' `-x`
-8. the snapshot LKM is currently unmaintained due to too many kernel changes
+8. The snapshot LKM is currently unmaintained due to too many kernel changes
    coming too fast :-(
 9. FRIDA mode is supported on Linux and MacOS for Intel and ARM
 10. QEMU/Unicorn is only supported on Linux
 11. Coresight mode is only available on AARCH64 Linux with a CPU with Coresight
     extension
+12. Nyx mode is only supported on Linux and currently restricted to x86_x64
+
+## Integrated features and patches
 
 Among others, the following features and patches have been integrated:
 
@@ -43,7 +100,7 @@ Among others, the following features and patches have been integrated:
 * Unicorn mode which allows fuzzing of binaries from completely different
   platforms (integration provided by domenukk)
 * The new CmpLog instrumentation for LLVM and QEMU inspired by
-  [Redqueen](https://www.syssec.ruhr-uni-bochum.de/media/emma/veroeffentlichungen/2018/12/17/NDSS19-Redqueen.pdf)
+  [Redqueen](https://github.com/RUB-SysSec/redqueen)
 * Win32 PE binary-only fuzzing with QEMU and Wine
 * AFLfast's power schedules by Marcel Böhme:
   [https://github.com/mboehme/aflfast](https://github.com/mboehme/aflfast)