Merge pull request #1933 from AFLplusplus/dev

push to stable

.custom-format.py

@@ -24,7 +24,7 @@ import importlib.metadata
 
 # string_re = re.compile('(\\"(\\\\.|[^"\\\\])*\\")') # TODO: for future use
 
-CURRENT_LLVM = os.getenv('LLVM_VERSION', 16)
+CURRENT_LLVM = os.getenv('LLVM_VERSION', 17)
 CLANG_FORMAT_BIN = os.getenv("CLANG_FORMAT_BIN", "")
 
 

.gitignore

@@ -10,6 +10,7 @@
 .test
 .test2
 .vscode
+afl-addseeds.8
 afl-analyze
 afl-analyze.8
 afl-as

Dockerfile

@@ -42,7 +42,7 @@ RUN apt-get update && \
     python3 python3-dev python3-pip python-is-python3 \
     libtool libtool-bin libglib2.0-dev \
     apt-transport-https gnupg dialog \
-    gnuplot-nox libpixman-1-dev \
+    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 \

GNUmakefile

@@ -32,7 +32,7 @@ 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
 
@@ -45,6 +45,10 @@ 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 += $(ASAN_CFLAGS)
@@ -91,9 +95,9 @@ ifneq "$(SYS)" "Darwin"
   #ifeq "$(HAVE_MARCHNATIVE)" "1"
   #  SPECIAL_PERFORMANCE += -march=native
   #endif
- ifndef DEBUG
-   CFLAGS_OPT += -D_FORTIFY_SOURCE=1
- endif
+ #ifndef DEBUG
+ #  CFLAGS_OPT += -D_FORTIFY_SOURCE=1
+ #endif
 else
   # On some odd MacOS system configurations, the Xcode sdk path is not set correctly
   SDK_LD = -L$(shell xcrun --show-sdk-path)/usr/lib
@@ -255,17 +259,17 @@ 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
@@ -391,6 +395,7 @@ help:
 	@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

GNUmakefile.gcc_plugin

@@ -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=1
+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=1
-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}')

GNUmakefile.llvm

@@ -46,7 +46,7 @@ LLVMVER  = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/git//' | sed 's
 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 | grep -E -q '^[0-2]\.|^3.[0-7]\.' && echo 1 || echo 0 )
-LLVM_TOO_NEW = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[7-9]' && echo 1 || echo 0 )
+LLVM_TOO_NEW = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[8-9]|^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 )
@@ -262,7 +262,8 @@ else
         AFL_CLANG_DEBUG_PREFIX =
 endif
 
-CFLAGS          ?= -O3 -funroll-loops -fPIC -D_FORTIFY_SOURCE=1
+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)\" \
@@ -287,7 +288,8 @@ 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=1
+CXXFLAGS          ?= -O3 -funroll-loops -fPIC
+# -D_FORTIFY_SOURCE=1
 override CXXFLAGS += -Wall -g -I ./include/ \
                      -DVERSION=\"$(VERSION)\" -Wno-variadic-macros -Wno-deprecated-copy-with-dtor \
                      -DLLVM_MINOR=$(LLVM_MINOR) -DLLVM_MAJOR=$(LLVM_MAJOR)
@@ -298,7 +300,7 @@ endif
 ifneq "$(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

README.md

@@ -2,9 +2,9 @@
 
 <img align="right" src="https://raw.githubusercontent.com/AFLplusplus/Website/main/static/aflpp_bg.svg" alt="AFL++ logo" width="250" heigh="250">
 
-Release version: [4.07c](https://github.com/AFLplusplus/AFLplusplus/releases)
+Release version: [4.09c](https://github.com/AFLplusplus/AFLplusplus/releases)
 
-GitHub version: 4.08a
+GitHub version: 4.09c
 
 Repository:
 [https://github.com/AFLplusplus/AFLplusplus](https://github.com/AFLplusplus/AFLplusplus)
@@ -12,12 +12,13 @@ Repository:
 AFL++ is maintained by:
 
 * Marc "van Hauser" Heuse <mh@mh-sec.de>
-* Andrea Fioraldi <andreafioraldi@gmail.com>
 * Dominik Maier <mail@dmnk.co>
-* Heiko "hexcoder-" Eißfeldt <heiko.eissfeldt@hexco.de>
+* 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.
@@ -228,7 +229,7 @@ Thank you! (For people sending pull requests - please add yourself to this list
     Thomas Rooijakkers                    David Carlier
     Ruben ten Hove                        Joey Jiao
     fuzzah                                @intrigus-lgtm
-    Yaakov Saxon
+    Yaakov Saxon                          Sergej Schumilo
   ```
 
 </details>

TODO.md

@@ -1,12 +1,29 @@
 # TODO list for AFL++
 
+## Must
+
+ - adapt MOpt to new mutation engine
+ - Update afl->pending_not_fuzzed for MOpt
+ - cmplog rtn sanity check on fixed length? + no length 1
+ - afl-showmap -f support
+ - afl-fuzz multicore wrapper script
+ - when trimming then perform crash detection
+ - either -L0 and/or -p mmopt results in zero new coverage
+
 ## Should
 
+<<<<<<< Updated upstream
+ - add value_profile but only enable after 15 minutes without finds?
+=======
+ - afl-showmap -f support
+ - afl-fuzz multicore wrapper script
+ - UI revamp
+ - hardened_usercopy=0 page_alloc.shuffle=0
+ - add value_profile but only enable after 15 minutes without finds
+>>>>>>> Stashed changes
  - afl-crash-analysis
- - test cmplog for less than 16bit
  - 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
@@ -25,8 +42,7 @@ 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
 

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

@@ -259,22 +259,20 @@ BEGIN {
   # Do a sanity check to discourage the use of /tmp, since we can't really
   # handle this safely from an awk script.
 
-  #if (!ENVIRON["AFL_ALLOW_TMP"]) {
-  #  dirlist[0] = in_dir
-  #  dirlist[1] = target_bin
-  #  dirlist[2] = out_dir
-  #  dirlist[3] = stdin_file
-  #  "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
-  #      }
-  #    }
-  #  delete dirlist
-  #}
+  if (!ENVIRON["AFL_ALLOW_TMP"]) {
+    dirlist[0] = in_dir
+    dirlist[1] = target_bin
+    dirlist[2] = out_dir
+    dirlist[3] = stdin_file
+    "pwd" | getline dirlist[4] # current directory
+    for (dirind in dirlist) {
+      dir = dirlist[dirind]
+      if (dir ~ /^(\/var)?\/tmp/) {
+        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"
@@ -425,12 +423,12 @@ BEGIN {
   cmd = "stat --version 2>/dev/null"
   cmd | getline statversion
   close(cmd)
-  if (statversion ~ /GNU coreutils/) {
+  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"
@@ -493,6 +491,11 @@ 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!
 
   #############################

afl-cmin.bash

@@ -167,29 +167,28 @@ 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.
@@ -339,6 +338,13 @@ 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.
@@ -416,10 +422,14 @@ if [ "$THREADS" = "" ]; then
 
     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
 
@@ -427,11 +437,15 @@ if [ "$THREADS" = "" ]; then
 
     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" "$STDIN_FILE"
-      "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
+        CUR=$((CUR+1))
+        printf "\\r    Processing file $CUR/$IN_COUNT... "
+
+        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
 
@@ -453,19 +467,26 @@ else
 
     cat $inputs | while read -r fn; do
 
-      "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+      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
 
-    STDIN_FILE="$inputs.$$"
-    cat $inputs | while read -r fn; do
+    if [ -s "$IN_DIR/$fn" ]; then
+      STDIN_FILE="$inputs.$$"
+      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" -- "$@" </dev/null
+        cp "$IN_DIR/$fn" "$STDIN_FILE"
+        "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
 
-    done
+      done
+
+    fi
 
   fi
 

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): $@"
+  exit 1
+fi
+
 echo
 echo "WARNING: This scripts makes permanent configuration changes to the system to"
 echo "         increase the performance for fuzzing. As a result, the system also"
@@ -98,9 +103,9 @@ if [[ "$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

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`
@@ -110,12 +114,12 @@ 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 Integrity Protection for increased performance.

afl-whatsup

@@ -18,64 +18,98 @@
 # 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 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="$NC"
+BC=`which bc 2>/dev/null`
+FUSER=`which fuser 2>/dev/null`
+
+if [ -z "$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
 
 CUR_TIME=`date +%s`
 
@@ -83,6 +117,7 @@ TMP=`mktemp -t .afl-whatsup-XXXXXXXX` || TMP=`mktemp -p /data/local/tmp .afl-wha
 
 ALIVE_CNT=0
 DEAD_CNT=0
+START_CNT=0
 
 TOTAL_TIME=0
 TOTAL_EXECS=0
@@ -91,6 +126,7 @@ TOTAL_CRASHES=0
 TOTAL_HANGS=0
 TOTAL_PFAV=0
 TOTAL_PENDING=0
+TOTAL_COVERAGE=
 
 # Time since last find / crash / hang, formatted as string
 FMT_TIME="0 days 0 hours"
@@ -99,11 +135,11 @@ FMT_CRASH="none seen yet"
 FMT_HANG="none seen yet"
 
 if [ "$SUMMARY_ONLY" = "" ]; then
-
+  
   echo "Individual fuzzers"
   echo "=================="
   echo
-
+  
 fi
 
 fmt_duration()
@@ -112,22 +148,22 @@ 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"
@@ -138,112 +174,187 @@ FIRST=true
 TOTAL_WCOP=
 TOTAL_LAST_FIND=0
 
-for i in `find . -maxdepth 2 -iname fuzzer_stats | sort`; do
-
-  sed 's/^command_line.*$/_skip:1/;s/[ ]*:[ ]*/="/;s/$/"/' "$i" >"$TMP"
-  . "$TMP"
-  DIR=$(dirname "$i")
-  DIR=${DIR##*/} 
-  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 instance: $DIR ($RUN_DAYS days, $RUN_HRS hrs) fuzzer PID: $fuzzer_pid <<<"
-    echo
-
-  fi
-
-  if ! kill -0 "$fuzzer_pid" 2>/dev/null; then
-
-    if [ "$SUMMARY_ONLY" = "" ]; then
-
-      echo "  Instance is dead or running remotely, skipping."
-      echo
-
+for j in `find . -maxdepth 2 -iname fuzzer_setup | sort`; do
+  
+  DIR=$(dirname "$j")
+  i=$DIR/fuzzer_stats
+  
+  if [ -f "$i" ]; then
+    
+    sed 's/^command_line.*$/_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=$((DEAD_CNT + 1))
-    last_find=0
-
-    if [ "$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=$((cur_item * 100 / corpus_count))
-
-  TOTAL_TIME=$((TOTAL_TIME + RUN_UNIX))
-  TOTAL_EPS=$((TOTAL_EPS + EXEC_SEC))
-  TOTAL_EXECS=$((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"
+    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=
     }
-
-    echo "  last_find       : $FMT_FIND"
-    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 "  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 $saved_crashes (!)"
+    
+    if [ "$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
+      
+      IS_STARTING=
+      IS_DEAD=
+      
+      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=$((ALIVE_CNT + 1))
+    
+    EXEC_SEC=0
+    test -z "$RUN_UNIX" -o "$RUN_UNIX" = 0 || EXEC_SEC=$((execs_done / RUN_UNIX))
+    PATH_PERC=$((cur_item * 100 / corpus_count))
+    
+    TOTAL_TIME=$((TOTAL_TIME + RUN_UNIX))
+    TOTAL_EPS=$((TOTAL_EPS + EXEC_SEC))
+    TOTAL_EXECS=$((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 find, crash, and hang
@@ -254,7 +365,7 @@ 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"
@@ -271,40 +382,56 @@ 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
+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)"
 fi
 
 echo "      Total run time : $FMT_TIME"
-echo "         Total execs : $FMT_EXECS"
-echo "    Cumulative speed : $TOTAL_EPS execs/sec"
+if [ -z "$MINIMAL_ONLY" ]; then
+  echo "         Total execs : $FMT_EXECS"
+  echo "    Cumulative speed : $TOTAL_EPS execs/sec"
+fi
 if [ "$ALIVE_CNT" -gt "0" ]; then
   echo "       Average speed : $((TOTAL_EPS / ALIVE_CNT)) execs/sec"
 fi
-echo "       Pending items : $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
 
+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"
-echo "         Hangs saved : $TOTAL_HANGS"
-echo "Cycles without finds : $TOTAL_WCOP"
+if [ -z "$MINIMAL_ONLY" ]; then
+  echo "         Hangs saved : $TOTAL_HANGS"
+  echo "Cycles without finds : $TOTAL_WCOP"
+fi
 echo "  Time without finds : $TOTAL_LAST_FIND"
 echo
 

benchmark/COMPARISON.md

@@ -0,0 +1,9 @@
+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         |

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 +1,420 @@
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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": 3599.106, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 446851.67, "execs_total": 4471572, "fuzzers_used": 168}}}}
+{"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": 3417.764, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 447685.22, "execs_total": 4479536, "fuzzers_used": 169}}}}
+{"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": 3589.058, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 446730.72, "execs_total": 4470322, "fuzzers_used": 170}}}}
+{"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": 3599.116, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 448668.48, "execs_total": 4489967, "fuzzers_used": 171}}}}
+{"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": 3587.905, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 450972.11, "execs_total": 4513110, "fuzzers_used": 172}}}}
+{"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": 3599.114, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 450615.23, "execs_total": 4509271, "fuzzers_used": 173}}}}
+{"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": 3598.851, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 458016.89, "execs_total": 4583318, "fuzzers_used": 174}}}}
+{"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": 3599.106, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 460677.5, "execs_total": 4609716, "fuzzers_used": 175}}}}
+{"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": 3374.143, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 460763.9, "execs_total": 4610640, "fuzzers_used": 176}}}}
+{"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": 3599.42, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 452298.55, "execs_total": 4526006, "fuzzers_used": 177}}}}
+{"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": 3598.801, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 456748.89, "execs_total": 4570571, "fuzzers_used": 178}}}}
+{"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": 3598.709, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 451289.94, "execs_total": 4516046, "fuzzers_used": 179}}}}
+{"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}}}}
+{"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": 3598.242, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 467300.47, "execs_total": 4676077, "fuzzers_used": 183}}}}
+{"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": 3597.952, "cpu_model": "AMD EPYC 7R13 Processor", "cpu_threads": 192}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 475115.57, "execs_total": 4754150, "fuzzers_used": 184}}}}
+{"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}}}}

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())
+

custom_mutators/aflpp/standalone/aflpp-standalone.c

@@ -39,6 +39,7 @@ my_mutator_t *afl_custom_init(afl_state_t *afl, unsigned int seed) {
   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;

custom_mutators/aflpp_tritondse/aflpp_tritondse.py

@@ -164,7 +164,7 @@ def init(seed):
         format = SeedFormat.COMPOSITE
     # Now set up TritonDSE
     config = Config(coverage_strategy = CoverageStrategy.PATH,
-                    debug = is_debug,
+    #                debug = is_debug,
                     pipe_stdout = is_debug,
                     pipe_stderr = is_debug,
                     execution_timeout = 1,

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_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/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.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):
 #     '''

docs/Changelog.md

@@ -3,7 +3,39 @@
   This is the list of all noteworthy changes made in every public
   release of the tool. See README.md for the general instruction manual.
 
-### Version ++4.08a (dev)
+### 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
@@ -15,10 +47,14 @@
       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!
@@ -27,7 +63,9 @@
     - 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:
@@ -57,7 +95,6 @@
     - 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

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>
@@ -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>

docs/INSTALL.md

@@ -7,7 +7,7 @@ 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
 ```
 
@@ -87,6 +87,7 @@ These build options exist:
 * 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
+* 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

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.
@@ -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:

docs/custom_mutators.md

@@ -125,8 +125,9 @@ def deinit():  # optional for Python
 
 - `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):
 

docs/env_variables.md

@@ -135,6 +135,12 @@ subset of the settings discussed in section 1, with the exception of:
   - `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:
 
@@ -327,6 +333,9 @@ 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
@@ -365,6 +374,9 @@ checks or alter some of the more exotic semantics of the tool:
   - `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.
@@ -409,10 +421,15 @@ checks or alter some of the more exotic semantics of the tool:
     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.
+
+  - 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
@@ -585,7 +602,8 @@ checks or alter some of the more exotic semantics of the tool:
     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.
+    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

docs/fuzzing_in_depth.md

@@ -599,32 +599,40 @@ during fuzzing) and their number, a value between 50-500MB is recommended. You
 can set the cache size (in MB) by setting the environment variable
 `AFL_TESTCACHE_SIZE`.
 
-There should be one main fuzzer (`-M main-$HOSTNAME` option) and as many
-secondary fuzzers (e.g., `-S variant1`) as you have cores that you use. Every
-`-M`/`-S` entry needs a unique name (that can be whatever), however, the same
-`-o` output directory location has to be used for all instances.
+There should be one main fuzzer (`-M main-$HOSTNAME` option - set also
+`AFL_FINAL_SYNC=1`) and as many secondary fuzzers (e.g., `-S variant1`) as you
+have cores that you use. Every `-M`/`-S` entry needs a unique name (that can be
+whatever), however, the same `-o` output directory location has to be used for
+all instances.
 
 For every secondary fuzzer there should be a variation, e.g.:
-* one should fuzz the target that was compiled differently: with sanitizers
-  activated (`export AFL_USE_ASAN=1 ; export AFL_USE_UBSAN=1 ; export
-  AFL_USE_CFISAN=1`)
+* one should fuzz the target that was compiled with sanitizers activated
+  (`export AFL_USE_ASAN=1 ; export AFL_USE_UBSAN=1 ; export AFL_USE_CFISAN=1`)
 * one or two should fuzz the target with CMPLOG/redqueen (see above), at least
-  one cmplog instance should follow transformations (`-l AT`)
+  one cmplog instance should follow transformations (`-l 2AT`)
 * one to three fuzzers should fuzz a target compiled with laf-intel/COMPCOV (see
   above). Important note: If you run more than one laf-intel/COMPCOV fuzzer and
   you want them to share their intermediate results, the main fuzzer (`-M`) must
-  be one of them! (Although this is not really recommended.)
+  be one of them (although this is not really recommended).
 
-All other secondaries should be used like this:
-* a quarter to a third with the MOpt mutator enabled: `-L 0`
-* run with a different power schedule, recommended are: `fast` (default),
+The other secondaries should be run like this:
+* 10% with the MOpt mutator enabled: `-L 0`
+* 10% should use the old queue cycling with `-Z`
+* 50-70% should run with `AFL_DISABLE_TRIM`
+* 40% should run with `-P explore` and 20% with `-P exploit`
+* If you use `-a` then set 30% of the instances to not use `-a`; if you did
+  not set `-a` (why??), then set 30% to `-a ascii` and 30% to `-a binary`.
+* run each with a different power schedule, recommended are: `fast` (default),
   `explore`, `coe`, `lin`, `quad`, `exploit`, and `rare` which you can set with
   the `-p` option, e.g., `-p explore`. See the
   [FAQ](FAQ.md#what-are-power-schedules) for details.
-* a few instances should use the old queue cycling with `-Z`
+
+It can be useful to set `AFL_IGNORE_SEED_PROBLEMS=1` to skip over seeds that
+crash or timeout during startup.
 
 Also, it is recommended to set `export AFL_IMPORT_FIRST=1` to load test cases
-from other fuzzers in the campaign first.
+from other fuzzers in the campaign first. But note that can slow down the start
+of the first fuzz by quite a lot of you have many fuzzers and/or many seeds.
 
 If you have a large corpus, a corpus from a previous run or are fuzzing in a CI,
 then also set `export AFL_CMPLOG_ONLY_NEW=1` and `export AFL_FAST_CAL=1`.
@@ -940,7 +948,7 @@ too long for your overall available fuzz run time.
     * 65% for `AFL_DISABLE_TRIM`
     * 50% for `AFL_KEEP_TIMEOUTS`
     * 50% use a dictionary generated by `AFL_LLVM_DICT2FILE` + `AFL_LLVM_DICT2FILE_NO_MAIN=1`
-    * 40% use MOpt (`-L 0`)
+    * 10% use MOpt (`-L 0`)
     * 40% for `AFL_EXPAND_HAVOC_NOW`
     * 20% for old queue processing (`-Z`)
     * for CMPLOG targets, 70% for `-l 2`, 10% for `-l 3`, 20% for `-l 2AT`

docs/tutorials.md

@@ -21,7 +21,7 @@ training, then we can highly recommend the following:
 
 * [https://github.com/antonio-morales/Fuzzing101](https://github.com/antonio-morales/Fuzzing101)
 
-Here is a good forkflow description (and tutorial) for qemu_mode:
+Here is a good workflow description (and tutorial) for qemu_mode:
 
 * [https://airbus-seclab.github.io/AFLplusplus-blogpost/](https://airbus-seclab.github.io/AFLplusplus-blogpost/)
 
@@ -41,6 +41,9 @@ structure is), these links have you covered (some are outdated though):
 * Superion for AFL++:
   [https://github.com/adrian-rt/superion-mutator](https://github.com/adrian-rt/superion-mutator)
 
+For a very in-depth explanation on how AFL++ works check out:
+[https://blog.ritsec.club/posts/afl-under-hood/](https://blog.ritsec.club/posts/afl-under-hood/)
+
 ## Video Tutorials
 
 * [Install AFL++ Ubuntu](https://www.youtube.com/watch?v=5dCvhkbi3RA)

frida_mode/src/instrument/instrument_arm32.c

@@ -15,7 +15,7 @@ static GHashTable *coverage_blocks = NULL;
 
 extern __thread guint64 instrument_previous_pc;
 
-__attribute__((aligned(0x1000))) static guint8 area_ptr_dummy[MAP_SIZE];
+__attribute__((aligned(0x1000))) static guint8 area_ptr_dummy[MAP_INITIAL_SIZE];
 
   #pragma pack(push, 1)
 typedef struct {

frida_mode/src/instrument/instrument_arm64.c

@@ -22,7 +22,7 @@ gboolean           instrument_cache_enabled = FALSE;
 gsize              instrument_cache_size = 0;
 static GHashTable *coverage_blocks = NULL;
 
-__attribute__((aligned(0x1000))) static guint8 area_ptr_dummy[MAP_SIZE];
+__attribute__((aligned(0x1000))) static guint8 area_ptr_dummy[MAP_INITIAL_SIZE];
 
   #pragma pack(push, 1)
 typedef struct {
@@ -402,6 +402,14 @@ bool instrument_write_inline(GumArm64Writer *cw, GumAddress code_addr,
 
   }
 
+  /*
+   * The mov instruction supports up to a 16-bit offset. If our offset is out of
+   * range, then it can end up clobbering the op-code portion of the instruction
+   * rather than just the operands. So return false and fall back to the
+   * alternative instrumentation.
+   */
+  if (area_offset > UINT16_MAX) { return false; }
+
   code.code.mov_x0_curr_loc |= area_offset << 5;
 
   if (!instrument_patch_ardp(

frida_mode/src/lib/lib.c

@@ -44,8 +44,10 @@ static gboolean lib_find_exe(const GumModuleDetails *details,
 
   lib_details_t *lib_details = (lib_details_t *)user_data;
 
-  memcpy(lib_details->name, details->name, PATH_MAX);
-  memcpy(lib_details->path, details->path, PATH_MAX);
+  strncpy(lib_details->name, details->name, PATH_MAX);
+  strncpy(lib_details->path, details->path, PATH_MAX);
+  lib_details->name[PATH_MAX] = '\0';
+  lib_details->path[PATH_MAX] = '\0';
   lib_details->base_address = details->range->base_address;
   lib_details->size = details->range->size;
   return FALSE;

frida_mode/src/main.c

@@ -49,10 +49,10 @@ extern void __libc_init(void *raw_args, void (*onexit)(void) __unused,
                         int (*slingshot)(int, char **, char **),
                         structors_array_t const *const structors);
 #else
-extern int  __libc_start_main(int (*main)(int, char **, char **), int argc,
-                              char **ubp_av, void (*init)(void),
-                              void (*fini)(void), void (*rtld_fini)(void),
-                              void(*stack_end));
+extern int __libc_start_main(int (*main)(int, char **, char **), int argc,
+                             char **ubp_av, void (*init)(void),
+                             void (*fini)(void), void (*rtld_fini)(void),
+                             void(*stack_end));
 #endif
 
 typedef int (*main_fn_t)(int argc, char **argv, char **envp);

frida_mode/test/bloaty/GNUmakefile

@@ -35,7 +35,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/cache/GNUmakefile

@@ -11,7 +11,7 @@ QEMU_OUT:=$(BUILD_DIR)qemu-out
 FRIDA_OUT:=$(BUILD_DIR)frida-out
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFLPP_FRIDA_DRIVER_HOOK_OBJ=$(ROOT)frida_mode/build/frida_hook.so
 

frida_mode/test/cmov/GNUmakefile

@@ -11,7 +11,7 @@ QEMU_OUT:=$(BUILD_DIR)qemu-out
 FRIDA_OUT:=$(BUILD_DIR)frida-out
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFLPP_FRIDA_DRIVER_HOOK_OBJ=$(ROOT)frida_mode/build/frida_hook.so
 

frida_mode/test/deferred/GNUmakefile

@@ -10,7 +10,7 @@ TESTINSTSRC:=$(PWD)testinstr.c
 QEMU_OUT:=$(BUILD_DIR)qemu-out
 FRIDA_OUT:=$(BUILD_DIR)frida-out
 
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 ifndef ARCH
 

frida_mode/test/dynamic/GNUmakefile

@@ -17,7 +17,7 @@ FRIDA_OUT:=$(BUILD_DIR)frida-out
 AFLPP_FRIDA_DRIVER_HOOK_OBJ=$(ROOT)frida_mode/build/frida_hook.so
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TESTINSTBIN) testinstr $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/entry_point/GNUmakefile

@@ -10,7 +10,7 @@ TESTINSTSRC:=$(PWD)testinstr.c
 QEMU_OUT:=$(BUILD_DIR)qemu-out
 FRIDA_OUT:=$(BUILD_DIR)frida-out
 
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 ifndef ARCH
 

frida_mode/test/freetype2/GNUmakefile

@@ -64,7 +64,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/jpeg/GNUmakefile

@@ -47,7 +47,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/libpcap/GNUmakefile

@@ -56,7 +56,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/libxml/GNUmakefile

@@ -43,7 +43,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/libxslt/GNUmakefile

@@ -42,7 +42,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/osx-lib/GNUmakefile

@@ -26,7 +26,7 @@ FRIDA_OUT:=$(BUILD_DIR)frida-out
 HARNESS_LDFLAGS:=-Wl,-no_pie
 LIB_CFLAGS:=-dynamiclib
 
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 AFL_FRIDA_MAIN_ADDR=$(shell $(GET_SYMBOL_ADDR) $(HARNESS_BIN) main 0x0)
 AFL_FRIDA_MAIN_ADDR2=$(shell $(GET_SYMBOL_ADDR) $(HARNESS2_BIN) main 0x0)
 AFL_FRIDA_FUZZ_ADDR=$(shell $(GET_SYMBOL_ADDR) $(HARNESS_BIN) LLVMFuzzerTestOneInput 0x0)

frida_mode/test/perf/GNUmakefile

@@ -31,7 +31,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/persistent_ret/GNUmakefile

@@ -23,7 +23,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 ifeq "$(shell uname)" "Darwin"
 TEST_BIN_LDFLAGS:=-Wl,-no_pie

frida_mode/test/png/GNUmakefile

@@ -8,7 +8,7 @@ HARNESS_BUILD_DIR:=$(BUILD_DIR)harness/
 PNGTEST_BUILD_DIR:=$(BUILD_DIR)pngtest/
 
 LIBZ_FILE:=$(LIBZ_BUILD_DIR)zlib-1.2.13.tar.gz
-LIBZ_URL:=http://www.zlib.net/zlib-1.2.13.tar.gz
+LIBZ_URL:=http://www.zlib.net/fossils/zlib-1.2.13.tar.gz
 LIBZ_DIR:=$(LIBZ_BUILD_DIR)zlib-1.2.13/
 LIBZ_PC:=$(LIBZ_DIR)zlib.pc
 LIBZ_LIB:=$(LIBZ_DIR)libz.a

frida_mode/test/png/persistent/GNUmakefile

@@ -22,7 +22,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/png/persistent/hook/GNUmakefile

@@ -33,7 +33,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/proj4/GNUmakefile

@@ -47,7 +47,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/re2/GNUmakefile

@@ -48,7 +48,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/sqlite/GNUmakefile

@@ -43,7 +43,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/unstable/GNUmakefile

@@ -23,7 +23,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/test/vorbis/GNUmakefile

@@ -54,7 +54,7 @@ endif
 endif
 
 ADDR_BIN:=$(ROOT)frida_mode/build/addr
-GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/get_symbol_addr.sh
+GET_SYMBOL_ADDR:=$(ROOT)frida_mode/util/frida_get_symbol_addr.sh
 
 AFL_FRIDA_BASE_ADDR:=$(shell $(ADDR_BIN))
 AFL_FRIDA_PERSISTENT_ADDR=$(shell $(GET_SYMBOL_ADDR) $(TEST_BIN) LLVMFuzzerTestOneInput $(AFL_FRIDA_BASE_ADDR))

frida_mode/util/frida_get_symbol_addr.sh

@@ -0,0 +1,56 @@
+#!/bin/bash
+# Copyright 2023 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
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+target="$1"
+symbol="$2"
+base="$3"
+
+test -z "$target" -o -z "$symbol" -o '!' -x "$target" && {
+  echo "Syntax: $0 executable function [baseaddress]"
+  echo
+  echo Help script to calculate the function address of a binary QEMU will load it to.
+  echo function is e.g. LLVMFuzzerTestOneInput, afl_qemu_driver_stdin, etc.
+  echo "baseaddress is tried to be auto-detected, you can use 'AFL_QEMU_DEBUG_MAPS=1 afl-qemu-trace ./executable' to see the maps."
+  exit 1
+}
+
+file=$(file $target|sed 's/.*: //')
+
+arch=$(echo $file|awk -F, '{print$2}'|tr -d ' ')
+bits=$(echo $file|sed 's/-bit .*//'|sed 's/.* //')
+pie=$(echo $file|grep -wqi pie && echo pie)
+dso=$(echo $file|grep -wqi "shared object" && echo dso)
+
+test $(uname -s) = "Darwin" && symbol=_"$symbol"
+tmp_addr=$(nm "$target" | grep -i "T $symbol" | awk '{print$1}' | tr a-f A-F)
+
+test -z "$tmp_addr" && { echo Error: function $symbol not found 1>&2; exit 1; }
+test -z "$pie" && test -z "$dso" && { echo 0x$tmp_addr; exit 0; }
+
+test -z "$base" && {
+  test "$bits" = 32 -o "$bits" = 64 || { echo "Error: could not identify arch (bits=$bits)" 1>&2 ; exit 1; }
+  # is this true for arm/aarch64/i386 too?
+  base=0x555555554000
+  #test "$arch" = Intel80386 && base=0x5555554000
+  #test "$arch" = x86-64 && base=0x555555554000
+  #test "$arch" = ARMaarch64 && base=0x5500000000
+  # add more here, e.g. "$arch" = ARM
+}
+
+test -z "$base" && { echo "Error: could not identify base address! bits=$bits arch=$arch" 1>&2 ; exit 1; }
+
+hex_base=$(echo "$base" | awk '{sub("^0x","");print $0}' | tr a-f A-F )
+echo $tmp_addr | echo "ibase=16;obase=10;$hex_base + $tmp_addr" | bc | tr A-F a-f | awk '{print "0x"$0}'
+exit 0

frida_mode/util/get_symbol_addr.sh

@@ -1,32 +0,0 @@
-#!/bin/bash
-# Copyright 2020 Google LLC
-#
-# 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
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# set -x
-target="$1"
-symbol="$2"
-base="$3"
-
-test -z "$target" -o -z "$symbol" -o '!' -e "$target" && exit 0
-
-test $(uname -s) = "Darwin" && symbol=_"$symbol"
-
-file "$target" | grep -q executable && {
-  nm "$target" | grep -i "T $symbol" | awk '{print"0x"$1}'
-  exit 0
-}
-
-hex_base=$(echo "$3" | awk '{sub("^0x","");print $0}' | tr a-f A-F )
-nm "$target" | grep -i "T $symbol" | awk '{print$1}' | tr a-f A-F | \
-  xargs echo "ibase=16;obase=10;$hex_base + " | bc | tr A-F a-f | awk '{print "0x"$0}'
-exit 0

include/afl-fuzz.h

@@ -31,7 +31,7 @@
 #define MESSAGES_TO_STDOUT
 
 #ifndef _GNU_SOURCE
-  #define _GNU_SOURCE 1
+  #define _GNU_SOURCE
 #endif
 #ifndef _FILE_OFFSET_BITS
   #define _FILE_OFFSET_BITS 64
@@ -157,6 +157,7 @@ struct queue_entry {
 
   u8 colorized,                         /* Do not run redqueen stage again  */
       cal_failed;                       /* Calibration failed?              */
+
   bool trim_done,                       /* Trimmed?                         */
       was_fuzzed,                       /* historical, but needed for MOpt  */
       passed_det,                       /* Deterministic stages passed?     */
@@ -168,17 +169,15 @@ struct queue_entry {
       disabled;                         /* Is disabled from fuzz selection  */
 
   u32 bitmap_size,                      /* Number of bits set in bitmap     */
-      fuzz_level,                       /* Number of fuzzing iterations     */
-      n_fuzz_entry                      /* offset in n_fuzz                 */
 #ifdef INTROSPECTION
-      ,
       stats_selected,                   /* stats: how often selected        */
       stats_skipped,                    /* stats: how often skipped         */
       stats_finds,                      /* stats: # of saved finds          */
       stats_crashes,                    /* stats: # of saved crashes        */
-      stats_tmouts                      /* stats: # of saved timeouts       */
+      stats_tmouts,                     /* stats: # of saved timeouts       */
 #endif
-      ;
+      fuzz_level,                       /* Number of fuzzing iterations     */
+      n_fuzz_entry;                     /* offset in n_fuzz                 */
 
   u64 exec_us,                          /* Execution time (us)              */
       handicap,                         /* Number of queue cycles behind    */
@@ -346,6 +345,7 @@ enum {
   /* 13 */ PY_FUNC_DESCRIBE,
   /* 14 */ PY_FUNC_FUZZ_SEND,
   /* 15 */ PY_FUNC_SPLICE_OPTOUT,
+  /* 16 */ PY_FUNC_POST_RUN,
   PY_FUNC_COUNT
 
 };
@@ -401,7 +401,8 @@ typedef struct afl_env_vars {
       afl_exit_on_seed_issues, afl_try_affinity, afl_ignore_problems,
       afl_keep_timeouts, afl_no_crash_readme, afl_ignore_timeouts,
       afl_no_startup_calibration, afl_no_warn_instability,
-      afl_post_process_keep_original;
+      afl_post_process_keep_original, afl_crashing_seeds_as_new_crash,
+      afl_final_sync, afl_ignore_seed_problems;
 
   u8 *afl_tmpdir, *afl_custom_mutator_library, *afl_python_module, *afl_path,
       *afl_hang_tmout, *afl_forksrv_init_tmout, *afl_preload,
@@ -610,6 +611,7 @@ typedef struct afl_state {
 
   u32 stage_cur, stage_max;             /* Stage progression                */
   s32 splicing_with;                    /* Splicing with which test case?   */
+  s64 smallest_favored;                 /* smallest queue id favored        */
 
   u32 main_node_id, main_node_max;      /*   Main instance job splitting    */
 
@@ -674,7 +676,8 @@ typedef struct afl_state {
   u32 cmplog_max_filesize;
   u32 cmplog_lvl;
   u32 colorize_success;
-  u8  cmplog_enable_arith, cmplog_enable_transform, cmplog_random_colorization;
+  u8  cmplog_enable_arith, cmplog_enable_transform, cmplog_enable_scale,
+      cmplog_enable_xtreme_transform, cmplog_random_colorization;
 
   struct afl_pass_stat *pass_stats;
   struct cmp_map       *orig_cmp_map;
@@ -1018,6 +1021,16 @@ struct custom_mutator {
    */
   void (*afl_custom_fuzz_send)(void *data, const u8 *buf, size_t buf_size);
 
+  /**
+   * This method can be used if you want to run some code or scripts each time
+   * AFL++ executes the target with afl-fuzz.
+   *
+   * (Optional)
+   *
+   * @param data pointer returned in afl_custom_init by this custom mutator
+   */
+  void (*afl_custom_post_run)(void *data);
+
   /**
    * Allow for additional analysis (e.g. calling a different tool that does a
    * different kind of coverage and saves this for the custom mutator).
@@ -1073,6 +1086,7 @@ void                   finalize_py_module(void *);
 
 u32         fuzz_count_py(void *, const u8 *, size_t);
 void        fuzz_send_py(void *, const u8 *, size_t);
+void        post_run_py(void *);
 size_t      post_process_py(void *, u8 *, size_t, u8 **);
 s32         init_trim_py(void *, u8 *, size_t);
 s32         post_trim_py(void *, u8);

include/afl-mutations.h

@@ -25,13 +25,14 @@
      u32 max_len - the maximum size the mutated buffer may grow to
 */
 
-#ifndef _ANDROID_ASHMEM_H
-  #define AFL_MUTATIONS_H
+#ifndef AFL_MUTATIONS_H
+#define AFL_MUTATIONS_H
 
-  #include <stdbool.h>
-  #include "afl-fuzz.h"
+#include <stdbool.h>
+#include <inttypes.h>
+#include "afl-fuzz.h"
 
-  #define MUT_STRATEGY_ARRAY_SIZE 256
+#define MUT_STRATEGY_ARRAY_SIZE 256
 
 enum {
 
@@ -77,7 +78,7 @@ enum {
 
 };
 
-  #define MUT_TXT_ARRAY_SIZE 200
+#define MUT_TXT_ARRAY_SIZE 200
 u32 text_array[MUT_TXT_ARRAY_SIZE] = {MUT_FLIPBIT,
                                       MUT_FLIPBIT,
                                       MUT_FLIPBIT,
@@ -279,7 +280,7 @@ u32 text_array[MUT_TXT_ARRAY_SIZE] = {MUT_FLIPBIT,
                                       MUT_SPLICE_INSERT,
                                       MUT_SPLICE_INSERT};
 
-  #define MUT_BIN_ARRAY_SIZE 256
+#define MUT_BIN_ARRAY_SIZE 256
 u32 binary_array[MUT_BIN_ARRAY_SIZE] = {MUT_FLIPBIT,
                                         MUT_FLIPBIT,
                                         MUT_FLIPBIT,
@@ -537,7 +538,7 @@ u32 binary_array[MUT_BIN_ARRAY_SIZE] = {MUT_FLIPBIT,
                                         MUT_SPLICE_INSERT,
                                         MUT_SPLICE_INSERT};
 
-  #define MUT_NORMAL_ARRAY_SIZE 77
+#define MUT_NORMAL_ARRAY_SIZE 77
 u32 normal_splice_array[MUT_NORMAL_ARRAY_SIZE] = {MUT_FLIPBIT,
                                                   MUT_FLIPBIT,
                                                   MUT_FLIPBIT,
@@ -616,7 +617,7 @@ u32 normal_splice_array[MUT_NORMAL_ARRAY_SIZE] = {MUT_FLIPBIT,
                                                   MUT_SPLICE_INSERT,
                                                   MUT_SPLICE_INSERT};
 
-  #define MUT_SPLICE_ARRAY_SIZE 81
+#define MUT_SPLICE_ARRAY_SIZE 81
 u32 full_splice_array[MUT_SPLICE_ARRAY_SIZE] = {MUT_FLIPBIT,
                                                 MUT_FLIPBIT,
                                                 MUT_FLIPBIT,
@@ -1853,7 +1854,7 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps,
 
   for (u32 step = 0; step < steps; ++step) {
 
-  retry_havoc_step : {
+  retry_havoc_step: {
 
     u32 r = rand_below(afl, MUT_STRATEGY_ARRAY_SIZE), item;
 
@@ -2455,14 +2456,14 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps,
 
         }
 
-        char buf[20];
-        snprintf(buf, sizeof(buf), "%ld", val);
+        char numbuf[32];
+        snprintf(numbuf, sizeof(buf), "%" PRId64, val);
         u32 old_len = off2 - off;
-        u32 new_len = strlen(buf);
+        u32 new_len = strlen(numbuf);
 
         if (old_len == new_len) {
 
-          memcpy(buf + off, buf, new_len);
+          memcpy(buf + off, numbuf, new_len);
 
         } else {
 
@@ -2472,7 +2473,7 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps,
 
           /* Inserted part */
 
-          memcpy(tmp_buf + off, buf, new_len);
+          memcpy(tmp_buf + off, numbuf, new_len);
 
           /* Tail */
           memcpy(tmp_buf + off + new_len, buf + off2, len - off2);
@@ -2508,9 +2509,9 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps,
         }
 
         u64  val = rand_next(afl);
-        char buf[20];
-        snprintf(buf, sizeof(buf), "%llu", val);
-        memcpy(buf + pos, buf, len);
+        char numbuf[32];
+        snprintf(numbuf, sizeof(numbuf), "%llu", val);
+        memcpy(buf + pos, numbuf, len);
 
         break;
 

include/android-ashmem.h

@@ -2,7 +2,9 @@
   #ifndef _ANDROID_ASHMEM_H
     #define _ANDROID_ASHMEM_H
 
-    #define _GNU_SOURCE
+    #ifndef _GNU_SOURCE
+      #define _GNU_SOURCE
+    #endif
     #include <sys/syscall.h>
     #include <unistd.h>
     #include <fcntl.h>

include/config.h

@@ -5,9 +5,9 @@
    Originally written by Michal Zalewski
 
    Now maintained by Marc Heuse <mh@mh-sec.de>,
-                     Heiko Eißfeldt <heiko.eissfeldt@hexco.de>,
-                     Andrea Fioraldi <andreafioraldi@gmail.com>,
                      Dominik Maier <mail@dmnk.co>
+                     Andrea Fioraldi <andreafioraldi@gmail.com>,
+                     Heiko Eissfeldt <heiko.eissfeldt@hexco.de>,
 
    Copyright 2016, 2017 Google Inc. All rights reserved.
    Copyright 2019-2023 AFLplusplus Project. All rights reserved.
@@ -26,7 +26,7 @@
 /* Version string: */
 
 // c = release, a = volatile github dev, e = experimental branch
-#define VERSION "++4.08a"
+#define VERSION "++4.09c"
 
 /******************************************************
  *                                                    *
@@ -60,10 +60,6 @@
  *
  */
 
-/* if TRANSFORM is enabled with '-l T', this additionally enables base64
-   encoding/decoding */
-// #define CMPLOG_SOLVE_TRANSFORM_BASE64
-
 /* If a redqueen pass finds more than one solution, try to combine them? */
 #define CMPLOG_COMBINE
 
@@ -71,10 +67,10 @@
 #define CMPLOG_CORPUS_PERCENT 5U
 
 /* Number of potential positions from which we decide if cmplog becomes
-   useless, default 8096 */
+   useless, default 12288 */
 #define CMPLOG_POSITIONS_MAX (12 * 1024)
 
-/* Maximum allowed fails per CMP value. Default: 128 */
+/* Maximum allowed fails per CMP value. Default: 96 */
 #define CMPLOG_FAIL_MAX 96
 
 /* -------------------------------------*/
@@ -124,9 +120,9 @@
 
 // #define _WANT_ORIGINAL_AFL_ALLOC
 
-/* Comment out to disable fancy ANSI boxes and use poor man's 7-bit UI: */
+/* Comment out to disable fancy boxes and use poor man's 7-bit UI: */
 
-#ifndef ANDROID_DISABLE_FANCY  // Fancy boxes are ugly from adb
+#ifndef DISABLE_FANCY
   #define FANCY_BOXES
 #endif
 
@@ -360,9 +356,10 @@
       65535,      /* Overflow unsig 16-bit when incremented  */ \
       65536,      /* Overflow unsig 16 bit                   */ \
       100663045,  /* Large positive number (endian-agnostic) */ \
+      2139095040, /* float infinite                          */ \
       2147483647                 /* Overflow signed 32-bit when incremented */
 
-#define INTERESTING_32_LEN 8
+#define INTERESTING_32_LEN 9
 
 /***********************************************************
  *                                                         *
@@ -446,7 +443,15 @@
    after changing this - otherwise, SEGVs may ensue. */
 
 #define MAP_SIZE_POW2 16
+
+/* Do not change this unless you really know what you are doing. */
+
 #define MAP_SIZE (1U << MAP_SIZE_POW2)
+#if MAP_SIZE <= 65536
+  #define MAP_INITIAL_SIZE (2 << 20)  // = 2097152
+#else
+  #define MAP_INITIAL_SIZE MAP_SIZE
+#endif
 
 /* Maximum allocator request size (keep well under INT_MAX): */
 

include/debug.h

@@ -116,7 +116,7 @@
  * Box drawing sequences *
  *************************/
 
-#ifdef FANCY_BOXES
+#ifdef FANCY_BOXES_NO_UTF
 
   #define SET_G1 "\x1b)0"                      /* Set G1 for box drawing    */
   #define RESET_G1 "\x1b)B"                    /* Reset G1 to ASCII         */
@@ -136,22 +136,43 @@
 
 #else
 
-  #define SET_G1 ""
-  #define RESET_G1 ""
-  #define bSTART ""
-  #define bSTOP ""
-  #define bH "-"
-  #define bV "|"
-  #define bLT "+"
-  #define bRT "+"
-  #define bLB "+"
-  #define bRB "+"
-  #define bX "+"
-  #define bVR "+"
-  #define bVL "+"
-  #define bHT "+"
-  #define bHB "+"
+  #ifdef FANCY_BOXES
 
+    #define SET_G1 ""
+    #define RESET_G1 ""
+    #define bSTART ""
+    #define bSTOP ""
+    #define bH "\u2500"                        /* Horizontal line           */
+    #define bV "\u2502"                        /* Vertical line             */
+    #define bLT "\u250c"                       /* Left top corner           */
+    #define bRT "\u2510"                       /* Right top corner          */
+    #define bLB "\u2514"                       /* Left bottom corner        */
+    #define bRB "\u2518"                       /* Right bottom corner       */
+    #define bX "\u253c"                        /* Cross                     */
+    #define bVR "\u251c"                       /* Vertical, branch right    */
+    #define bVL "\u2524"                       /* Vertical, branch left     */
+    #define bHT "\u2534"                       /* Horizontal, branch top    */
+    #define bHB "\u252c"                       /* Horizontal, branch bottom */
+
+  #else
+
+    #define SET_G1 ""
+    #define RESET_G1 ""
+    #define bSTART ""
+    #define bSTOP ""
+    #define bH "-"
+    #define bV "|"
+    #define bLT "+"
+    #define bRT "+"
+    #define bLB "+"
+    #define bRB "+"
+    #define bX "+"
+    #define bVR "+"
+    #define bVL "+"
+    #define bHT "+"
+    #define bHB "+"
+
+  #endif
 #endif                                                      /* ^FANCY_BOXES */
 
 /***********************

include/envs.h

@@ -35,6 +35,7 @@ static char *afl_environment_variables[] = {
     "AFL_COMPCOV_BINNAME",
     "AFL_COMPCOV_LEVEL",
     "AFL_CRASH_EXITCODE",
+    "AFL_CRASHING_SEEDS_AS_NEW_CRASH",
     "AFL_CUSTOM_MUTATOR_LIBRARY",
     "AFL_CUSTOM_MUTATOR_ONLY",
     "AFL_CUSTOM_INFO_PROGRAM",
@@ -58,6 +59,7 @@ static char *afl_environment_variables[] = {
     "AFL_EXIT_ON_TIME",
     "AFL_EXIT_ON_SEED_ISSUES",
     "AFL_FAST_CAL",
+    "AFL_FINAL_SYNC",
     "AFL_FORCE_UI",
     "AFL_FRIDA_DEBUG_MAPS",
     "AFL_FRIDA_DRIVER_NO_HOOK",
@@ -111,6 +113,7 @@ static char *afl_environment_variables[] = {
     "AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES",
     "AFL_IGNORE_PROBLEMS",
     "AFL_IGNORE_PROBLEMS_COVERAGE",
+    "AFL_IGNORE_SEED_PROBLEMS",
     "AFL_IGNORE_TIMEOUTS",
     "AFL_IGNORE_UNKNOWN_ENVS",
     "AFL_IMPORT_FIRST",
@@ -159,6 +162,7 @@ static char *afl_environment_variables[] = {
     "AFL_LLVM_MAP_DYNAMIC",
     "AFL_LLVM_NGRAM_SIZE",
     "AFL_NGRAM_SIZE",
+    "AFL_LLVM_NO_RPATH",
     "AFL_LLVM_NOT_ZERO",
     "AFL_LLVM_INSTRUMENT_FILE",
     "AFL_LLVM_THREADSAFE_INST",
@@ -168,6 +172,7 @@ static char *afl_environment_variables[] = {
     "AFL_LLVM_LTO_DONTWRITEID",
     "AFL_LLVM_LTO_SKIPINIT"
     "AFL_LLVM_LTO_STARTID",
+    "AFL_FUZZER_LOOPCOUNT",
     "AFL_NO_ARITH",
     "AFL_NO_AUTODICT",
     "AFL_NO_BUILTIN",
@@ -176,6 +181,7 @@ static char *afl_environment_variables[] = {
     "AFL_NO_COLOUR",
 #endif
     "AFL_NO_CPU_RED",
+    "AFL_NO_CFG_FUZZING",  // afl.rs rust crate option
     "AFL_NO_CRASH_README",
     "AFL_NO_FORKSRV",
     "AFL_NO_UI",
@@ -189,6 +195,10 @@ static char *afl_environment_variables[] = {
     "AFL_MAX_DET_EXTRAS",
     "AFL_NO_X86",  // not really an env but we dont want to warn on it
     "AFL_NOOPT",
+    "AFL_NYX_AUX_SIZE",
+    "AFL_NYX_DISABLE_SNAPSHOT_MODE",
+    "AFL_NYX_LOG",
+    "AFL_NYX_REUSE_SNAPSHOT",
     "AFL_PASSTHROUGH",
     "AFL_PATH",
     "AFL_PERFORMANCE_FILE",

include/forkserver.h

@@ -86,6 +86,8 @@ typedef struct {
                                  uint32_t size);
 
   bool (*nyx_remove_work_dir)(const char *workdir);
+  bool (*nyx_config_set_aux_buffer_size)(void    *config,
+                                         uint32_t aux_buffer_size);
 
 } nyx_plugin_handler_t;
 
@@ -195,8 +197,10 @@ typedef struct afl_forkserver {
   u32                   nyx_id;          /* nyx runner id (0 -> master)      */
   u32                   nyx_bind_cpu_id; /* nyx runner cpu id                */
   char                 *nyx_aux_string;
+  u32                   nyx_aux_string_len;
   bool                  nyx_use_tmp_workdir;
   char                 *nyx_tmp_workdir_path;
+  s32                   nyx_log_fd;
 #endif
 
 } afl_forkserver_t;

include/xxhash.h

@@ -365,7 +365,7 @@ typedef uint32_t XXH32_hash_t;
       (defined(__cplusplus) || \
        (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */))
     #include <stdint.h>
-typedef uint32_t      XXH32_hash_t;
+typedef uint32_t XXH32_hash_t;
 
   #else
     #include <limits.h>
@@ -1082,7 +1082,7 @@ struct XXH64_state_s {
       #include <stdalign.h>
       #define XXH_ALIGN(n) alignas(n)
     #elif defined(__cplusplus) && (__cplusplus >= 201103L)      /* >= C++11 */
-      /* In C++ alignas() is a keyword */
+    /* In C++ alignas() is a keyword */
       #define XXH_ALIGN(n) alignas(n)
     #elif defined(__GNUC__)
       #define XXH_ALIGN(n) __attribute__((aligned(n)))
@@ -3031,8 +3031,8 @@ XXH64_hashFromCanonical(const XXH64_canonical_t *src) {
           __STDC_VERSION__ >= 199901L                             /* >= C99 */
         #define XXH_RESTRICT restrict
       #else
-        /* Note: it might be useful to define __restrict or __restrict__ for
-         * some C++ compilers */
+      /* Note: it might be useful to define __restrict or __restrict__ for
+       * some C++ compilers */
         #define XXH_RESTRICT                                     /* disable */
       #endif
 
@@ -3492,8 +3492,8 @@ XXH_FORCE_INLINE xxh_u64x2 XXH_vec_loadu(const void *ptr) {
           #define XXH_vec_mulo vec_mulo
           #define XXH_vec_mule vec_mule
         #elif defined(__clang__) && XXH_HAS_BUILTIN(__builtin_altivec_vmuleuw)
-          /* Clang has a better way to control this, we can just use the builtin
-           * which doesn't swap. */
+        /* Clang has a better way to control this, we can just use the builtin
+         * which doesn't swap. */
           #define XXH_vec_mulo __builtin_altivec_vmulouw
           #define XXH_vec_mule __builtin_altivec_vmuleuw
         #else
@@ -3604,15 +3604,15 @@ XXH_FORCE_INLINE xxh_u64 XXH_mult32to64(xxh_u64 x, xxh_u64 y) {
         #include <intrin.h>
         #define XXH_mult32to64(x, y) __emulu((unsigned)(x), (unsigned)(y))
       #else
-        /*
-         * Downcast + upcast is usually better than masking on older compilers
-         * like GCC 4.2 (especially 32-bit ones), all without affecting newer
-         * compilers.
-         *
-         * The other method, (x & 0xFFFFFFFF) * (y & 0xFFFFFFFF), will AND both
-         * operands and perform a full 64x64 multiply -- entirely redundant on
-         * 32-bit.
-         */
+      /*
+       * Downcast + upcast is usually better than masking on older compilers
+       * like GCC 4.2 (especially 32-bit ones), all without affecting newer
+       * compilers.
+       *
+       * The other method, (x & 0xFFFFFFFF) * (y & 0xFFFFFFFF), will AND both
+       * operands and perform a full 64x64 multiply -- entirely redundant on
+       * 32-bit.
+       */
         #define XXH_mult32to64(x, y) \
           ((xxh_u64)(xxh_u32)(x) * (xxh_u64)(xxh_u32)(y))
       #endif

instrumentation/SanitizerCoverageLTO.so.cc

@@ -1081,7 +1081,7 @@ bool ModuleSanitizerCoverageLTO::instrumentModule(
       }
 
       if (!be_quiet)
-        printf("AUTODICTIONARY: %lu string%s found\n", count,
+        printf("AUTODICTIONARY: %zu string%s found\n", count,
                count == 1 ? "" : "s");
 
       if (count) {

instrumentation/SanitizerCoveragePCGUARD.so.cc

@@ -214,7 +214,11 @@ llvmGetPassPluginInfo() {
 #if LLVM_VERSION_MAJOR == 13
             using OptimizationLevel = typename PassBuilder::OptimizationLevel;
 #endif
+#if LLVM_VERSION_MAJOR >= 16
+            PB.registerOptimizerEarlyEPCallback(
+#else
             PB.registerOptimizerLastEPCallback(
+#endif
                 [](ModulePassManager &MPM, OptimizationLevel OL) {
 
                   MPM.addPass(ModuleSanitizerCoverageAFL());
@@ -227,6 +231,7 @@ llvmGetPassPluginInfo() {
 
 PreservedAnalyses ModuleSanitizerCoverageAFL::run(Module                &M,
                                                   ModuleAnalysisManager &MAM) {
+
   ModuleSanitizerCoverageAFL ModuleSancov(Options);
   auto &FAM = MAM.getResult<FunctionAnalysisManagerModuleProxy>(M).getManager();
   auto  DTCallback = [&FAM](Function &F) -> const DominatorTree  *{

instrumentation/afl-compiler-rt.o.c

@@ -48,7 +48,7 @@
 #include <errno.h>
 
 #include <sys/mman.h>
-#ifndef __HAIKU__
+#if !defined(__HAIKU__) && !defined(__OpenBSD__)
   #include <sys/syscall.h>
 #endif
 #ifndef USEMMAP
@@ -87,12 +87,6 @@
    is used for instrumentation output before __afl_map_shm() has a chance to
    run. It will end up as .comm, so it shouldn't be too wasteful. */
 
-#if MAP_SIZE <= 65536
-  #define MAP_INITIAL_SIZE 2097152
-#else
-  #define MAP_INITIAL_SIZE MAP_SIZE
-#endif
-
 #if defined(__HAIKU__)
 extern ssize_t _kern_write(int fd, off_t pos, const void *buffer,
                            size_t bufferSize);
@@ -189,7 +183,7 @@ static u8 _is_sancov;
 
 /* Debug? */
 
-static u32 __afl_debug;
+/*static*/ u32 __afl_debug;
 
 /* Already initialized markers */
 
@@ -673,7 +667,8 @@ static void __afl_map_shm(void) {
 
   if (id_str) {
 
-    if ((__afl_dummy_fd[1] = open("/dev/null", O_WRONLY)) < 0) {
+    // /dev/null doesn't work so we use /dev/urandom
+    if ((__afl_dummy_fd[1] = open("/dev/urandom", O_WRONLY)) < 0) {
 
       if (pipe(__afl_dummy_fd) < 0) { __afl_dummy_fd[1] = 1; }
 
@@ -877,7 +872,7 @@ static void __afl_start_snapshots(void) {
 
     if (__afl_debug) {
 
-      fprintf(stderr, "target forkserver recv: %08x\n", was_killed);
+      fprintf(stderr, "DEBUG: target forkserver recv: %08x\n", was_killed);
 
     }
 
@@ -1144,7 +1139,7 @@ static void __afl_start_forkserver(void) {
 
     if (__afl_debug) {
 
-      fprintf(stderr, "target forkserver recv: %08x\n", was_killed);
+      fprintf(stderr, "DEBUG: target forkserver recv: %08x\n", was_killed);
 
     }
 
@@ -1477,6 +1472,7 @@ __attribute__((constructor(1))) void __afl_auto_second(void) {
 
     __afl_debug = 1;
     fprintf(stderr, "DEBUG: debug enabled\n");
+    fprintf(stderr, "DEBUG: AFL++ afl-compiler-rt" VERSION "\n");
 
   }
 
@@ -1705,11 +1701,12 @@ void __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop) {
 
   if (__afl_debug) {
 
-    fprintf(stderr,
-            "Running __sanitizer_cov_trace_pc_guard_init: %p-%p (%lu edges) "
-            "after_fs=%u\n",
-            start, stop, (unsigned long)(stop - start),
-            __afl_already_initialized_forkserver);
+    fprintf(
+        stderr,
+        "DEBUG: Running __sanitizer_cov_trace_pc_guard_init: %p-%p (%lu edges) "
+        "after_fs=%u\n",
+        start, stop, (unsigned long)(stop - start),
+        __afl_already_initialized_forkserver);
 
   }
 
@@ -1807,7 +1804,8 @@ void __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop) {
       u8 ignore_dso_after_fs = !!getenv("AFL_IGNORE_PROBLEMS_COVERAGE");
       if (__afl_debug && ignore_dso_after_fs) {
 
-        fprintf(stderr, "Ignoring coverage from dynamically loaded code\n");
+        fprintf(stderr,
+                "DEBUG: Ignoring coverage from dynamically loaded code\n");
 
       }
 
@@ -1877,7 +1875,8 @@ void __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop) {
   if (__afl_debug) {
 
     fprintf(stderr,
-            "Done __sanitizer_cov_trace_pc_guard_init: __afl_final_loc = %u\n",
+            "DEBUG: Done __sanitizer_cov_trace_pc_guard_init: __afl_final_loc "
+            "= %u\n",
             __afl_final_loc);
 
   }
@@ -1888,7 +1887,7 @@ void __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop) {
 
       if (__afl_debug) {
 
-        fprintf(stderr, "Reinit shm necessary (+%u)\n",
+        fprintf(stderr, "DEBUG: Reinit shm necessary (+%u)\n",
                 __afl_final_loc - __afl_map_size);
 
       }
@@ -1911,6 +1910,10 @@ void __cmplog_ins_hook1(uint8_t arg1, uint8_t arg2, uint8_t attr) {
   // fprintf(stderr, "hook1 arg0=%02x arg1=%02x attr=%u\n",
   //         (u8) arg1, (u8) arg2, attr);
 
+  return;
+
+  /*
+
   if (unlikely(!__afl_cmp_map || arg1 == arg2)) return;
 
   uintptr_t k = (uintptr_t)__builtin_return_address(0);
@@ -1937,6 +1940,8 @@ void __cmplog_ins_hook1(uint8_t arg1, uint8_t arg2, uint8_t attr) {
   __afl_cmp_map->log[k][hits].v0 = arg1;
   __afl_cmp_map->log[k][hits].v1 = arg2;
 
+  */
+
 }
 
 void __cmplog_ins_hook2(uint16_t arg1, uint16_t arg2, uint8_t attr) {
@@ -2143,13 +2148,13 @@ void __cmplog_ins_hook16(uint128_t arg1, uint128_t arg2, uint8_t attr) {
 
 void __sanitizer_cov_trace_cmp1(uint8_t arg1, uint8_t arg2) {
 
-  __cmplog_ins_hook1(arg1, arg2, 0);
+  //__cmplog_ins_hook1(arg1, arg2, 0);
 
 }
 
 void __sanitizer_cov_trace_const_cmp1(uint8_t arg1, uint8_t arg2) {
 
-  __cmplog_ins_hook1(arg1, arg2, 0);
+  //__cmplog_ins_hook1(arg1, arg2, 0);
 
 }
 
@@ -2258,11 +2263,13 @@ static int area_is_valid(void *ptr, size_t len) {
 
   if (unlikely(!ptr || __asan_region_is_poisoned(ptr, len))) { return 0; }
 
-#ifndef __HAIKU__
-  long r = syscall(SYS_write, __afl_dummy_fd[1], ptr, len);
-#else
+#ifdef __HAIKU__
   long r = _kern_write(__afl_dummy_fd[1], -1, ptr, len);
-#endif  // HAIKU
+#elif defined(__OpenBSD__)
+  long r = write(__afl_dummy_fd[1], ptr, len);
+#else
+  long r = syscall(SYS_write, __afl_dummy_fd[1], ptr, len);
+#endif  // HAIKU, OPENBSD
 
   if (r <= 0 || r > len) return 0;
 
@@ -2300,7 +2307,7 @@ void __cmplog_rtn_hook_strn(u8 *ptr1, u8 *ptr2, u64 len) {
   int len1 = strnlen(ptr1, len0);
   if (len1 < 31) len1 = area_is_valid(ptr1, len1 + 1);
   int len2 = strnlen(ptr2, len0);
-  if (len2 < 31) len2 = area_is_valid(ptr1, len2 + 1);
+  if (len2 < 31) len2 = area_is_valid(ptr2, len2 + 1);
   int l = MAX(len1, len2);
   if (l < 2) return;
 

instrumentation/afl-llvm-common.cc

@@ -97,11 +97,15 @@ bool isIgnoreFunction(const llvm::Function *F) {
 
   static constexpr const char *ignoreSubstringList[] = {
 
-      "__asan", "__msan",       "__ubsan",    "__lsan",  "__san", "__sanitize",
-      "__cxx",  "DebugCounter", "DwarfDebug", "DebugLoc"
+      "__asan",     "__msan",       "__ubsan",    "__lsan",  "__san",
+      "__sanitize", "DebugCounter", "DwarfDebug", "DebugLoc"
 
   };
 
+  // This check is very sensitive, we must be sure to not include patterns
+  // that are part of user-written C++ functions like the ones including
+  // std::string as parameter (see #1927) as the mangled type is inserted in the
+  // mangled name of the user-written function
   for (auto const &ignoreListFunc : ignoreSubstringList) {
 
     // hexcoder: F->getName().contains() not avaiilable in llvm 3.8.0

instrumentation/afl-llvm-dict2file.so.cc

@@ -206,7 +206,18 @@ bool AFLdict2filePass::runOnModule(Module &M) {
 
   ptr = getenv("AFL_LLVM_DICT2FILE");
 
-  if (!ptr || *ptr != '/')
+  if (!ptr) {
+
+#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
+    auto PA = PreservedAnalyses::all();
+    return PA;
+#else
+    return true;
+#endif
+
+  }
+
+  if (*ptr != '/')
     FATAL("AFL_LLVM_DICT2FILE is not set to an absolute path: %s", ptr);
 
   of.open(ptr, std::ofstream::out | std::ofstream::app);

instrumentation/afl-llvm-pass.so.cc

@@ -552,7 +552,7 @@ bool AFLCoverage::runOnModule(Module &M) {
 #endif
         {
 
-          // load the context ID of the previous function and write to to a
+          // load the context ID of the previous function and write to a
           // local variable on the stack
           LoadInst *PrevCtxLoad = IRB.CreateLoad(
 #if LLVM_VERSION_MAJOR >= 14
@@ -634,7 +634,7 @@ bool AFLCoverage::runOnModule(Module &M) {
 
 /* There is a problem with Ubuntu 18.04 and llvm 6.0 (see issue #63).
    The inline function successors() is not inlined and also not found at runtime
-   :-( As I am unable to detect Ubuntu18.04 heree, the next best thing is to
+   :-( As I am unable to detect Ubuntu18.04 here, the next best thing is to
    disable this optional optimization for LLVM 6.0.0 and Linux */
 #if !(LLVM_VERSION_MAJOR == 6 && LLVM_VERSION_MINOR == 0) || !defined __linux__
       // only instrument if this basic block is the destination of a previous

instrumentation/cmplog-instructions-pass.cc

@@ -90,7 +90,7 @@ class CmpLogInstructions : public ModulePass {
 #if LLVM_MAJOR >= 11                                /* use new pass manager */
   PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
 #else
-  bool      runOnModule(Module &M) override;
+  bool runOnModule(Module &M) override;
 
   #if LLVM_VERSION_MAJOR >= 4
   StringRef getPassName() const override {
@@ -165,23 +165,25 @@ bool CmpLogInstructions::hookInstrs(Module &M) {
   IntegerType *Int64Ty = IntegerType::getInt64Ty(C);
   IntegerType *Int128Ty = IntegerType::getInt128Ty(C);
 
-#if LLVM_VERSION_MAJOR >= 9
-  FunctionCallee
-#else
-  Constant *
-#endif
-      c1 = M.getOrInsertFunction("__cmplog_ins_hook1", VoidTy, Int8Ty, Int8Ty,
-                                 Int8Ty
-#if LLVM_VERSION_MAJOR < 5
-                                 ,
-                                 NULL
-#endif
-      );
-#if LLVM_VERSION_MAJOR >= 9
-  FunctionCallee cmplogHookIns1 = c1;
-#else
-  Function *cmplogHookIns1 = cast<Function>(c1);
-#endif
+  /*
+  #if LLVM_VERSION_MAJOR >= 9
+    FunctionCallee
+  #else
+    Constant *
+  #endif
+        c1 = M.getOrInsertFunction("__cmplog_ins_hook1", VoidTy, Int8Ty, Int8Ty,
+                                   Int8Ty
+  #if LLVM_VERSION_MAJOR < 5
+                                   ,
+                                   NULL
+  #endif
+        );
+  #if LLVM_VERSION_MAJOR >= 9
+    FunctionCallee cmplogHookIns1 = c1;
+  #else
+    Function *cmplogHookIns1 = cast<Function>(c1);
+  #endif
+  */
 
 #if LLVM_VERSION_MAJOR >= 9
   FunctionCallee
@@ -619,7 +621,7 @@ bool CmpLogInstructions::hookInstrs(Module &M) {
           switch (cast_size) {
 
             case 8:
-              IRB.CreateCall(cmplogHookIns1, args);
+              // IRB.CreateCall(cmplogHookIns1, args);
               break;
             case 16:
               IRB.CreateCall(cmplogHookIns2, args);

instrumentation/cmplog-routines-pass.cc

@@ -85,7 +85,7 @@ class CmpLogRoutines : public ModulePass {
 #if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
   PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
 #else
-  bool      runOnModule(Module &M) override;
+  bool runOnModule(Module &M) override;
 
   #if LLVM_VERSION_MAJOR >= 4
   StringRef getPassName() const override {

instrumentation/cmplog-switches-pass.cc

@@ -85,7 +85,7 @@ class CmplogSwitches : public ModulePass {
 #if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
   PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
 #else
-  bool        runOnModule(Module &M) override;
+  bool runOnModule(Module &M) override;
 
   #if LLVM_VERSION_MAJOR < 4
   const char *getPassName() const override {

instrumentation/compare-transform-pass.so.cc

@@ -169,6 +169,7 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
   DenseMap<Value *, std::string *> valueMap;
   std::vector<CallInst *>          calls;
   LLVMContext                     &C = M.getContext();
+  IntegerType                     *Int1Ty = IntegerType::getInt1Ty(C);
   IntegerType                     *Int8Ty = IntegerType::getInt8Ty(C);
   IntegerType                     *Int32Ty = IntegerType::getInt32Ty(C);
   IntegerType                     *Int64Ty = IntegerType::getInt64Ty(C);
@@ -227,9 +228,9 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
           isStrcmp &=
               (!FuncName.compare("strcmp") || !FuncName.compare("xmlStrcmp") ||
                !FuncName.compare("xmlStrEqual") ||
-               !FuncName.compare("g_strcmp0") ||
                !FuncName.compare("curl_strequal") ||
-               !FuncName.compare("strcsequal"));
+               !FuncName.compare("strcsequal") ||
+               !FuncName.compare("g_strcmp0"));
           isMemcmp &=
               (!FuncName.compare("memcmp") || !FuncName.compare("bcmp") ||
                !FuncName.compare("CRYPTO_memcmp") ||
@@ -237,8 +238,8 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
                !FuncName.compare("memcmp_const_time") ||
                !FuncName.compare("memcmpct"));
           isStrncmp &= (!FuncName.compare("strncmp") ||
-                        !FuncName.compare("xmlStrncmp") ||
-                        !FuncName.compare("curl_strnequal"));
+                        !FuncName.compare("curl_strnequal") ||
+                        !FuncName.compare("xmlStrncmp"));
           isStrcasecmp &= (!FuncName.compare("strcasecmp") ||
                            !FuncName.compare("stricmp") ||
                            !FuncName.compare("ap_cstr_casecmp") ||
@@ -457,6 +458,7 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
     bool        isSizedcmp = false;
     bool        isCaseInsensitive = false;
     bool        needs_null = false;
+    bool        success_is_one = false;
     Function   *Callee = callInst->getCalledFunction();
 
     if (Callee) {
@@ -503,6 +505,12 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
           !Callee->getName().compare("g_strncasecmp"))
         isCaseInsensitive = true;
 
+      if (!Callee->getName().compare("xmlStrEqual") ||
+          !Callee->getName().compare("curl_strequal") ||
+          !Callee->getName().compare("strcsequal") ||
+          !Callee->getName().compare("curl_strnequal"))
+        success_is_one = true;
+
     }
 
     if (!isSizedcmp) needs_null = true;
@@ -667,6 +675,14 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
       else
         isub = cur_cmp_IRB.CreateSub(load, ConstantInt::get(Int8Ty, c));
 
+      if (success_is_one && i == unrollLen - 1) {
+
+        Value *isubsub = cur_cmp_IRB.CreateTrunc(isub, Int1Ty);
+        isub = cur_cmp_IRB.CreateSelect(isubsub, ConstantInt::get(Int8Ty, 0),
+                                        ConstantInt::get(Int8Ty, 1));
+
+      }
+
       Value *sext = cur_cmp_IRB.CreateSExt(isub, Int32Ty);
       PN->addIncoming(sext, cur_cmp_bb);
 

instrumentation/split-compares-pass.so.cc

@@ -1740,7 +1740,7 @@ bool SplitComparesTransform::runOnModule(Module &M) {
     if (!be_quiet && !debug) {
 
       errs() << "Split-floatingpoint-compare-pass: " << count
-             << " FP comparisons splitted\n";
+             << " FP comparisons split\n";
 
     }
 

instrumentation/split-switches-pass.so.cc

@@ -84,7 +84,7 @@ class SplitSwitchesTransform : public ModulePass {
 #if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
   PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
 #else
-  bool      runOnModule(Module &M) override;
+  bool runOnModule(Module &M) override;
 
   #if LLVM_VERSION_MAJOR >= 4
   StringRef getPassName() const override {

nyx_mode/LIBNYX_VERSION

@@ -1 +1 @@
-c8a72dc
+512058a

nyx_mode/PACKER_VERSION

@@ -1 +1 @@
-202bace
+bcf3e24

nyx_mode/QEMU_NYX_VERSION

@@ -1 +1 @@
-60c216bc9e
+02a6f2aed3

nyx_mode/README.md

@@ -150,12 +150,12 @@ afl-cmin -i in_dir -o out_dir -X -- ./PACKAGE-DIRECTORY
 
 On each program startup of one the AFL++ tools in Nyx mode, a Nyx VM is spawned, and a bootstrapping procedure is performed inside the VM to prepare the target environment. As a consequence, due to the bootstrapping procedure, the launch performance is much slower compared to other modes. However, this can be optimized by reusing an existing fuzzing snapshot to avoid the slow re-execution of the bootstrap procedure. 
 
-A fuzzing snapshot is automatically created and stored in the output directory at `out_dir/workdir/snapshot/` by the first parent process of `afl-fuzz` if parallel mode is used. To enable this feature, set the path to an existing snapshot directory in the `NYX_REUSE_SNAPSHOT` environment variable and use the tools as usual:
+A fuzzing snapshot is automatically created and stored in the output directory at `out_dir/workdir/snapshot/` by the first parent process of `afl-fuzz` if parallel mode is used. To enable this feature, set the path to an existing snapshot directory in the `AFL_NYX_REUSE_SNAPSHOT` environment variable and use the tools as usual:
 
 ```shell 
 afl-fuzz -i ./in_dir -o ./out_dir -Y -M 0 ./PACKAGE-DIRECTORY
 
-NYX_REUSE_SNAPSHOT=./out_dir/workdir/snapshot/ afl-analyze -i in_file -X  -- ./PACKAGE-DIRECTORY
+AFL_NYX_REUSE_SNAPSHOT=./out_dir/workdir/snapshot/ afl-analyze -i in_file -X  -- ./PACKAGE-DIRECTORY
 ```
 
 
@@ -311,7 +311,28 @@ command:
 ```
 
 If you want to disable fast snapshots (except for crashes), you can simply set
-the `NYX_DISABLE_SNAPSHOT_MODE` environment variable.
+the `AFL_NYX_DISABLE_SNAPSHOT_MODE` environment variable.
+
+### Nyx crash reports
+
+If the Nyx agent detects a crash in the target application, it can pass 
+additional information on that crash to AFL++ (assuming that the agent
+implements this feature). For each saved crashing input AFL++ will also create
+an additional file in the `crashes` directory with a `.log` file extension.
+Crash reports generated by the default agent shipped with the Nyx packer will
+contain information such as the faulting address and signal number.
+Additionally, if the target is compiled with AddressSanitizer, the crash report
+will also contain the entire ASan report. 
+
+From a technical perspective, the crash report is passed from QEMU-Nyx to AFL++
+via a shared memory region called Nyx Auxiliary Buffer which is by default 4096
+bytes in size. In this shared memory region a specific amount is reserved for
+the header (1408 bytes) and the remaining bytes can be used to transfer crash
+reports (also the `hprintf` feature utilizes the very same shared memory for 
+transferring data). By default a crash report will be truncated to 2688 bytes.
+However, if you want to increase the size of the shared memory region, you can
+set the `AFL_NYX_AUX_SIZE` environment variable to a higher value (keep in
+mind that this value must be a multiple of 4096).
 
 ### Run AFL++Nyx with a custom agent
 

qemu_mode/libqasan/dlmalloc.c

@@ -771,8 +771,8 @@ MAX_RELEASE_CHECK_RATE   default: 4095 unless not HAVE_MMAP
       #include "/usr/include/malloc.h"
     #else                                      /* HAVE_USR_INCLUDE_MALLOC_H */
       #ifndef STRUCT_MALLINFO_DECLARED
-        /* HP-UX (and others?) redefines mallinfo unless _STRUCT_MALLINFO is
-         * defined */
+      /* HP-UX (and others?) redefines mallinfo unless _STRUCT_MALLINFO is
+       * defined */
         #define _STRUCT_MALLINFO
         #define STRUCT_MALLINFO_DECLARED 1
 struct mallinfo {
@@ -1660,10 +1660,10 @@ extern size_t getpagesize();
   #define is_aligned(A) (((size_t)((A)) & (CHUNK_ALIGN_MASK)) == 0)
 
   /* the number of bytes to offset an address to align it */
-  #define align_offset(A)                                         \
-    ((((size_t)(A)&CHUNK_ALIGN_MASK) == 0)                        \
-         ? 0                                                      \
-         : ((MALLOC_ALIGNMENT - ((size_t)(A)&CHUNK_ALIGN_MASK)) & \
+  #define align_offset(A)                                           \
+    ((((size_t)(A) & CHUNK_ALIGN_MASK) == 0)                        \
+         ? 0                                                        \
+         : ((MALLOC_ALIGNMENT - ((size_t)(A) & CHUNK_ALIGN_MASK)) & \
             CHUNK_ALIGN_MASK))
 
   /* -------------------------- MMAP preliminaries ------------------------- */
@@ -1715,10 +1715,10 @@ static FORCEINLINE int unixmunmap(void *ptr, size_t size) {
         #define MUNMAP_DEFAULT(a, s) unixmunmap((a), (s))
 
       #else                                                /* MAP_ANONYMOUS */
-        /*
-           Nearly all versions of mmap support MAP_ANONYMOUS, so the following
-           is unlikely to be needed, but is supplied just in case.
-        */
+      /*
+         Nearly all versions of mmap support MAP_ANONYMOUS, so the following
+         is unlikely to be needed, but is supplied just in case.
+      */
         #define MMAP_FLAGS (MAP_PRIVATE)
 static int dev_zero_fd = -1;       /* Cached file descriptor for /dev/zero. */
         #define MMAP_DEFAULT(s)                                        \
@@ -1965,7 +1965,7 @@ static FORCEINLINE void x86_clear_lock(int *sl) {
 
       #endif                                     /* ... gcc spins locks ... */
 
-      /* How to yield for a spin lock */
+    /* How to yield for a spin lock */
       #define SPINS_PER_YIELD 63
       #if defined(_MSC_VER)
         #define SLEEP_EX_DURATION 50               /* delay for yield/sleep */
@@ -2008,11 +2008,11 @@ static MLOCK_T malloc_global_mutex = 0;
           #define CURRENT_THREAD GetCurrentThreadId()
           #define EQ_OWNER(X, Y) ((X) == (Y))
         #else
-          /*
-            Note: the following assume that pthread_t is a type that can be
-            initialized to (casted) zero. If this is not the case, you will need
-            to somehow redefine these or not use spin locks.
-          */
+        /*
+          Note: the following assume that pthread_t is a type that can be
+          initialized to (casted) zero. If this is not the case, you will need
+          to somehow redefine these or not use spin locks.
+        */
           #define THREAD_ID_T pthread_t
           #define CURRENT_THREAD pthread_self()
           #define EQ_OWNER(X, Y) pthread_equal(X, Y)
@@ -2169,7 +2169,7 @@ static int pthread_init_lock(MLOCK_T *lk) {
 
     #endif                                            /* ... lock types ... */
 
-    /* Common code for all lock types */
+  /* Common code for all lock types */
     #define USE_LOCK_BIT (2U)
 
     #ifndef ACQUIRE_MALLOC_GLOBAL_LOCK
@@ -3077,7 +3077,7 @@ static size_t traverse_and_check(mstate m);
   /* The size of the smallest chunk held in bin with index i */
   #define minsize_for_tree_index(i)                 \
     ((SIZE_T_ONE << (((i) >> 1) + TREEBIN_SHIFT)) | \
-     (((size_t)((i)&SIZE_T_ONE)) << (((i) >> 1) + TREEBIN_SHIFT - 1)))
+     (((size_t)((i) & SIZE_T_ONE)) << (((i) >> 1) + TREEBIN_SHIFT - 1)))
 
   /* ------------------------ Operations on bin maps ----------------------- */
 
@@ -3245,7 +3245,7 @@ static size_t traverse_and_check(mstate m);
 
   #else                                                          /* FOOTERS */
 
-    /* Set foot of inuse chunk to be xor of mstate and seed */
+  /* Set foot of inuse chunk to be xor of mstate and seed */
     #define mark_inuse_foot(M, p, s)                 \
       (((mchunkptr)((char *)(p) + (s)))->prev_foot = \
            ((size_t)(M) ^ mparams.magic))

qemu_mode/libqasan/malloc.c

@@ -80,8 +80,8 @@ static unsigned char __tmp_alloc_zone[TMP_ZONE_SIZE];
 #else
 
 // From dlmalloc.c
-void                     *dlmalloc(size_t);
-void                      dlfree(void *);
+void *dlmalloc(size_t);
+void  dlfree(void *);
   #define backend_malloc dlmalloc
   #define backend_free dlfree
 

qemu_mode/util/qemu_get_symbol_addr.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+# Copyright 2023 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
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+target="$1"
+symbol="$2"
+base="$3"
+
+test -z "$target" -o -z "$symbol" -o '!' -x "$target" && {
+  echo "Syntax: $0 executable function [baseaddress]"
+  echo
+  echo Help script to calculate the function address of a binary QEMU will load it to.
+  echo function is e.g. LLVMFuzzerTestOneInput, afl_qemu_driver_stdin, etc.
+  echo "baseaddress is tried to be auto-detected, you can use 'AFL_QEMU_DEBUG_MAPS=1 afl-qemu-trace ./executable' to see the maps."
+  exit 1
+}
+
+file=$(file $target|sed 's/.*: //')
+
+arch=$(echo $file|awk -F, '{print$2}'|tr -d ' ')
+bits=$(echo $file|sed 's/-bit .*//'|sed 's/.* //')
+pie=$(echo $file|grep -wqi pie && echo pie)
+
+test $(uname -s) = "Darwin" && symbol=_"$symbol"
+tmp_addr=$(nm "$target" | grep -i "T $symbol" | awk '{print$1}' | tr a-f A-F)
+
+test -z "$tmp_addr" && { echo Error: function $symbol not found 1>&2; exit 1; }
+test -z "$pie" && { echo 0x$tmp_addr; exit 0; }
+
+test -z "$base" && {
+  test "$bits" = 32 -o "$bits" = 64 || { echo "Error: could not identify arch (bits=$bits)" 1>&2 ; exit 1; }
+  test "$arch" = Intel80386 && base=0x40000000
+  test "$arch" = x86-64 && base=0x4000000000
+  test "$arch" = ARMaarch64 && base=0x5500000000
+  # add more here, e.g. "$arch" = ARM
+}
+
+test -z "$base" && { echo "Error: could not identify base address! bits=$bits arch=$arch" 1>&2 ; exit 1; }
+
+hex_base=$(echo "$base" | awk '{sub("^0x","");print $0}' | tr a-f A-F )
+echo $tmp_addr | echo "ibase=16;obase=10;$hex_base + $tmp_addr" | bc | tr A-F a-f | awk '{print "0x"$0}'
+exit 0

src/afl-cc.c

@@ -317,7 +317,7 @@ void parse_fsanitize(char *string) {
 
   char *p, *ptr = string + strlen("-fsanitize=");
   char *new = malloc(strlen(string) + 1);
-  char *tmp = malloc(strlen(ptr));
+  char *tmp = malloc(strlen(ptr) + 1);
   u32   count = 0, len, ende = 0;
 
   if (!new || !tmp) { FATAL("could not acquire memory"); }
@@ -395,12 +395,16 @@ static void process_params(u32 argc, char **argv) {
 
   }
 
+  // reset
+  have_instr_list = 0;
+  have_c = 0;
+
   if (lto_mode && argc > 1) {
 
     u32 idx;
     for (idx = 1; idx < argc; idx++) {
 
-      if (!strncasecmp(argv[idx], "-fpic", 5)) have_pic = 1;
+      if (!strncasecmp(argv[idx], "-fpic", 5)) { have_pic = 1; }
 
     }
 
@@ -689,6 +693,18 @@ static void edit_params(u32 argc, char **argv, char **envp) {
 
   cc_params = ck_alloc(MAX_PARAMS_NUM * sizeof(u8 *));
 
+  for (u32 c = 1; c < argc; ++c) {
+
+    if (!strcmp(argv[c], "-c")) have_c = 1;
+    if (!strncmp(argv[c], "-fsanitize-coverage-", 20) &&
+        strstr(argv[c], "list=")) {
+
+      have_instr_list = 1;
+
+    }
+
+  }
+
   if (lto_mode) {
 
     if (lto_flag[0] != '-')
@@ -1125,38 +1141,33 @@ static void edit_params(u32 argc, char **argv, char **envp) {
 
     // cc_params[cc_par_cnt++] = "-Qunused-arguments";
 
-    if (lto_mode && argc > 1) {
-
-      u32 idx;
-      for (idx = 1; idx < argc; idx++) {
-
-        if (!strncasecmp(argv[idx], "-fpic", 5)) have_pic = 1;
-
-      }
-
-    }
-
   }
 
   /* Inspect the command line parameters. */
 
   process_params(argc, argv);
 
-  if (!have_pic) { cc_params[cc_par_cnt++] = "-fPIC"; }
+  if (!have_pic) {
 
-  // in case LLVM is installed not via a package manager or "make install"
-  // e.g. compiled download or compiled from github then its ./lib directory
-  // might not be in the search path. Add it if so.
-  u8 *libdir = strdup(LLVM_LIBDIR);
-  if (plusplus_mode && strlen(libdir) && strncmp(libdir, "/usr", 4) &&
-      strncmp(libdir, "/lib", 4)) {
+    cc_params[cc_par_cnt++] = "-fPIC";
+    have_pic = 1;
 
-    cc_params[cc_par_cnt++] = "-Wl,-rpath";
-    cc_params[cc_par_cnt++] = libdir;
+  }
 
-  } else {
+  if (compiler_mode != GCC_PLUGIN && compiler_mode != GCC &&
+      !getenv("AFL_LLVM_NO_RPATH")) {
 
-    free(libdir);
+    // in case LLVM is installed not via a package manager or "make install"
+    // e.g. compiled download or compiled from github then its ./lib directory
+    // might not be in the search path. Add it if so.
+    const char *libdir = LLVM_LIBDIR;
+    if (plusplus_mode && strlen(libdir) && strncmp(libdir, "/usr", 4) &&
+        strncmp(libdir, "/lib", 4)) {
+
+      u8 *libdir_opt = strdup("-Wl,-rpath=" LLVM_LIBDIR);
+      cc_params[cc_par_cnt++] = libdir_opt;
+
+    }
 
   }
 
@@ -2118,6 +2129,8 @@ int main(int argc, char **argv, char **envp) {
         "  [LLVM] LLVM:             %s%s\n"
         "      PCGUARD              %s      yes yes     module yes yes    "
         "yes\n"
+        "      NATIVE               AVAILABLE      no  yes     no     no  "
+        "part.  yes\n"
         "      CLASSIC              %s      no  yes     module yes yes    "
         "yes\n"
         "        - NORMAL\n"
@@ -2137,10 +2150,10 @@ int main(int argc, char **argv, char **envp) {
         "no\n\n",
         have_llvm ? "AVAILABLE" : "unavailable!",
         compiler_mode == LLVM ? " [SELECTED]" : "",
+        have_llvm ? "AVAILABLE" : "unavailable!",
+        have_llvm ? "AVAILABLE" : "unavailable!",
         have_lto ? "AVAILABLE" : "unavailable!",
         compiler_mode == LTO ? " [SELECTED]" : "",
-        LLVM_MAJOR >= 7 ? "DEFAULT" : "       ",
-        LLVM_MAJOR >= 7 ? "       " : "DEFAULT",
         have_gcc_plugin ? "AVAILABLE" : "unavailable!",
         compiler_mode == GCC_PLUGIN ? " [SELECTED]" : "",
         have_gcc ? "AVAILABLE" : "unavailable!",
@@ -2287,7 +2300,9 @@ int main(int argc, char **argv, char **envp) {
             "  AFL_LLVM_CTX: use full context sensitive coverage (for "
             "CLASSIC)\n"
             "  AFL_LLVM_NGRAM_SIZE: use ngram prev_loc count coverage (for "
-            "CLASSIC)\n");
+            "CLASSIC)\n"
+            "  AFL_LLVM_NO_RPATH: disable rpath setting for custom LLVM "
+            "locations\n");
 
 #ifdef AFL_CLANG_FLTO
       if (have_lto)
@@ -2298,7 +2313,7 @@ int main(int argc, char **argv, char **envp) {
             "0x10000\n"
             "  AFL_LLVM_DOCUMENT_IDS: write all edge IDs and the corresponding "
             "functions\n"
-            "    into this file\n"
+            "    into this file (LTO mode)\n"
             "  AFL_LLVM_LTO_DONTWRITEID: don't write the highest ID used to a "
             "global var\n"
             "  AFL_LLVM_LTO_STARTID: from which ID to start counting from for "

src/afl-common.c

@@ -98,12 +98,27 @@ void set_sanitizer_defaults() {
   }
 
   /* LSAN does not support abort_on_error=1. (is this still true??) */
+  u8 should_detect_leaks = 0;
 
   if (!have_lsan_options) {
 
     u8 buf[2048] = "";
     if (!have_san_options) { strcpy(buf, default_options); }
-    strcat(buf, "exitcode=" STRINGIFY(LSAN_ERROR) ":fast_unwind_on_malloc=0:print_suppressions=0:detect_leaks=1:malloc_context_size=30:");
+    if (have_asan_options) {
+
+      if (NULL != strstr(have_asan_options, "detect_leaks=0")) {
+
+        strcat(buf, "exitcode=" STRINGIFY(LSAN_ERROR) ":fast_unwind_on_malloc=0:print_suppressions=0:detect_leaks=0:malloc_context_size=0:");
+
+      } else {
+
+        should_detect_leaks = 1;
+        strcat(buf, "exitcode=" STRINGIFY(LSAN_ERROR) ":fast_unwind_on_malloc=0:print_suppressions=0:detect_leaks=1:malloc_context_size=30:");
+
+      }
+
+    }
+
     setenv("LSAN_OPTIONS", buf, 1);
 
   }
@@ -112,7 +127,15 @@ void set_sanitizer_defaults() {
 
   if (!have_lsan_options) {
 
-    strcat(default_options, "detect_leaks=0:malloc_context_size=0:");
+    if (should_detect_leaks) {
+
+      strcat(default_options, "detect_leaks=1:malloc_context_size=30:");
+
+    } else {
+
+      strcat(default_options, "detect_leaks=0:malloc_context_size=0:");
+
+    }
 
   }
 
@@ -403,7 +426,7 @@ u8 *find_binary(u8 *fname) {
 
           FATAL(
               "Unexpected overflow when processing ENV. This should never "
-              "happend.");
+              "had happened.");
 
         }
 

src/afl-forkserver.c

@@ -129,6 +129,10 @@ nyx_plugin_handler_t *afl_load_libnyx_plugin(u8 *libnyx_binary) {
   plugin->nyx_remove_work_dir = dlsym(handle, "nyx_remove_work_dir");
   if (plugin->nyx_remove_work_dir == NULL) { goto fail; }
 
+  plugin->nyx_config_set_aux_buffer_size =
+      dlsym(handle, "nyx_config_set_aux_buffer_size");
+  if (plugin->nyx_config_set_aux_buffer_size == NULL) { goto fail; }
+
   OKF("libnyx plugin is ready!");
   return plugin;
 
@@ -160,6 +164,8 @@ void afl_nyx_runner_kill(afl_forkserver_t *fsrv) {
 
     }
 
+    if (fsrv->nyx_log_fd >= 0) { close(fsrv->nyx_log_fd); }
+
   }
 
 }
@@ -214,6 +220,7 @@ void afl_fsrv_init(afl_forkserver_t *fsrv) {
   fsrv->nyx_bind_cpu_id = 0xFFFFFFFF;
   fsrv->nyx_use_tmp_workdir = false;
   fsrv->nyx_tmp_workdir_path = NULL;
+  fsrv->nyx_log_fd = -1;
 #endif
 
   // this structure needs default so we initialize it if this was not done
@@ -265,6 +272,7 @@ void afl_fsrv_init_dup(afl_forkserver_t *fsrv_to, afl_forkserver_t *from) {
   fsrv_to->uses_crash_exitcode = from->uses_crash_exitcode;
   fsrv_to->crash_exitcode = from->crash_exitcode;
   fsrv_to->child_kill_signal = from->child_kill_signal;
+  fsrv_to->fsrv_kill_signal = from->fsrv_kill_signal;
   fsrv_to->debug = from->debug;
 
   // These are forkserver specific.
@@ -571,6 +579,22 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
     fsrv->nyx_handlers->nyx_config_set_input_buffer_write_protection(nyx_config,
                                                                      true);
 
+    char *nyx_log_path = getenv("AFL_NYX_LOG");
+    if (nyx_log_path) {
+
+      fsrv->nyx_log_fd =
+          open(nyx_log_path, O_CREAT | O_TRUNC | O_WRONLY, DEFAULT_PERMISSION);
+      if (fsrv->nyx_log_fd < 0) {
+
+        NYX_PRE_FATAL(fsrv, "AFL_NYX_LOG path could not be written");
+
+      }
+
+      fsrv->nyx_handlers->nyx_config_set_hprintf_fd(nyx_config,
+                                                    fsrv->nyx_log_fd);
+
+    }
+
     if (fsrv->nyx_standalone) {
 
       fsrv->nyx_handlers->nyx_config_set_process_role(nyx_config, StandAlone);
@@ -589,23 +613,42 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
 
     }
 
-    if (getenv("NYX_REUSE_SNAPSHOT") != NULL) {
+    if (getenv("AFL_NYX_AUX_SIZE") != NULL) {
 
-      if (access(getenv("NYX_REUSE_SNAPSHOT"), F_OK) == -1) {
+      fsrv->nyx_aux_string_len = atoi(getenv("AFL_NYX_AUX_SIZE"));
 
-        NYX_PRE_FATAL(fsrv, "NYX_REUSE_SNAPSHOT path does not exist");
+      if (fsrv->nyx_handlers->nyx_config_set_aux_buffer_size(
+              nyx_config, fsrv->nyx_aux_string_len) != 1) {
+
+        NYX_PRE_FATAL(fsrv,
+                      "Invalid AFL_NYX_AUX_SIZE value set (must be a multiple "
+                      "of 4096) ...");
+
+      }
+
+    } else {
+
+      fsrv->nyx_aux_string_len = 0x1000;
+
+    }
+
+    if (getenv("AFL_NYX_REUSE_SNAPSHOT") != NULL) {
+
+      if (access(getenv("AFL_NYX_REUSE_SNAPSHOT"), F_OK) == -1) {
+
+        NYX_PRE_FATAL(fsrv, "AFL_NYX_REUSE_SNAPSHOT path does not exist");
 
       }
 
       /* stupid sanity check to avoid passing an empty or invalid snapshot
        * directory */
       char *snapshot_file_path =
-          alloc_printf("%s/global.state", getenv("NYX_REUSE_SNAPSHOT"));
+          alloc_printf("%s/global.state", getenv("AFL_NYX_REUSE_SNAPSHOT"));
       if (access(snapshot_file_path, R_OK) == -1) {
 
-        NYX_PRE_FATAL(
-            fsrv,
-            "NYX_REUSE_SNAPSHOT path does not contain a valid Nyx snapshot");
+        NYX_PRE_FATAL(fsrv,
+                      "AFL_NYX_REUSE_SNAPSHOT path does not contain a valid "
+                      "Nyx snapshot");
 
       }
 
@@ -617,13 +660,14 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
       char *workdir_snapshot_path =
           alloc_printf("%s/workdir/snapshot", outdir_path_absolute);
       char *reuse_snapshot_path_real =
-          realpath(getenv("NYX_REUSE_SNAPSHOT"), NULL);
+          realpath(getenv("AFL_NYX_REUSE_SNAPSHOT"), NULL);
 
       if (strcmp(workdir_snapshot_path, reuse_snapshot_path_real) == 0) {
 
-        NYX_PRE_FATAL(fsrv,
-                      "NYX_REUSE_SNAPSHOT path is located in current workdir "
-                      "(use another output directory)");
+        NYX_PRE_FATAL(
+            fsrv,
+            "AFL_NYX_REUSE_SNAPSHOT path is located in current workdir "
+            "(use another output directory)");
 
       }
 
@@ -631,12 +675,11 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
       ck_free(workdir_snapshot_path);
 
       fsrv->nyx_handlers->nyx_config_set_reuse_snapshot_path(
-          nyx_config, getenv("NYX_REUSE_SNAPSHOT"));
+          nyx_config, getenv("AFL_NYX_REUSE_SNAPSHOT"));
 
     }
 
-    fsrv->nyx_runner =
-        fsrv->nyx_handlers->nyx_new(nyx_config, fsrv->nyx_bind_cpu_id);
+    fsrv->nyx_runner = fsrv->nyx_handlers->nyx_new(nyx_config, fsrv->nyx_id);
 
     ck_free(workdir_path);
     ck_free(outdir_path_absolute);
@@ -653,27 +696,27 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
         fsrv->nyx_handlers->nyx_get_bitmap_buffer(fsrv->nyx_runner);
 
     fsrv->nyx_handlers->nyx_option_set_reload_mode(
-        fsrv->nyx_runner, getenv("NYX_DISABLE_SNAPSHOT_MODE") == NULL);
+        fsrv->nyx_runner, getenv("AFL_NYX_DISABLE_SNAPSHOT_MODE") == NULL);
     fsrv->nyx_handlers->nyx_option_apply(fsrv->nyx_runner);
 
     fsrv->nyx_handlers->nyx_option_set_timeout(fsrv->nyx_runner, 2, 0);
     fsrv->nyx_handlers->nyx_option_apply(fsrv->nyx_runner);
 
-    fsrv->nyx_aux_string = malloc(0x1000);
-    memset(fsrv->nyx_aux_string, 0, 0x1000);
+    fsrv->nyx_aux_string = malloc(fsrv->nyx_aux_string_len);
+    memset(fsrv->nyx_aux_string, 0, fsrv->nyx_aux_string_len);
 
     /* dry run */
     fsrv->nyx_handlers->nyx_set_afl_input(fsrv->nyx_runner, "INIT", 4);
     switch (fsrv->nyx_handlers->nyx_exec(fsrv->nyx_runner)) {
 
       case Abort:
-        NYX_PRE_FATAL(fsrv, "Error: Nyx abort occured...");
+        NYX_PRE_FATAL(fsrv, "Error: Nyx abort occurred...");
         break;
       case IoError:
         NYX_PRE_FATAL(fsrv, "Error: QEMU-Nyx has died...");
         break;
       case Error:
-        NYX_PRE_FATAL(fsrv, "Error: Nyx runtime error has occured...");
+        NYX_PRE_FATAL(fsrv, "Error: Nyx runtime error has occurred...");
         break;
       default:
         break;
@@ -1581,7 +1624,7 @@ afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
         FATAL("FixMe: Nyx InvalidWriteToPayload handler is missing");
         break;
       case Abort:
-        FATAL("Error: Nyx abort occured...");
+        FATAL("Error: Nyx abort occurred...");
       case IoError:
         if (*stop_soon_p) {
 
@@ -1595,7 +1638,7 @@ afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
 
         break;
       case Error:
-        FATAL("Error: Nyx runtime error has occured...");
+        FATAL("Error: Nyx runtime error has occurred...");
         break;
 
     }

src/afl-fuzz-bitmap.c

@@ -459,6 +459,17 @@ save_if_interesting(afl_state_t *afl, void *mem, u32 len, u8 fault) {
 
   if (unlikely(fault == FSRV_RUN_TMOUT && afl->afl_env.afl_ignore_timeouts)) {
 
+    if (likely(afl->schedule >= FAST && afl->schedule <= RARE)) {
+
+      classify_counts(&afl->fsrv);
+      u64 cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
+
+      // Saturated increment
+      if (likely(afl->n_fuzz[cksum % N_FUZZ_SIZE] < 0xFFFFFFFF))
+        afl->n_fuzz[cksum % N_FUZZ_SIZE]++;
+
+    }
+
     return 0;
 
   }
@@ -474,7 +485,7 @@ save_if_interesting(afl_state_t *afl, void *mem, u32 len, u8 fault) {
 
   /* Generating a hash on every input is super expensive. Bad idea and should
      only be used for special schedules */
-  if (unlikely(afl->schedule >= FAST && afl->schedule <= RARE)) {
+  if (likely(afl->schedule >= FAST && afl->schedule <= RARE)) {
 
     classify_counts(&afl->fsrv);
     classified = 1;
@@ -533,7 +544,8 @@ save_if_interesting(afl_state_t *afl, void *mem, u32 len, u8 fault) {
     close(fd);
     add_to_queue(afl, queue_fn, len, 0);
 
-    if (unlikely(afl->fuzz_mode) && likely(afl->switch_fuzz_mode)) {
+    if (unlikely(afl->fuzz_mode) &&
+        likely(afl->switch_fuzz_mode && !afl->non_instrumented_mode)) {
 
       if (afl->afl_env.afl_no_ui) {
 
@@ -865,7 +877,8 @@ save_if_interesting(afl_state_t *afl, void *mem, u32 len, u8 fault) {
     if (unlikely(fd < 0)) { PFATAL("Unable to create '%s'", fn_log); }
 
     u32 nyx_aux_string_len = afl->fsrv.nyx_handlers->nyx_get_aux_string(
-        afl->fsrv.nyx_runner, afl->fsrv.nyx_aux_string, 0x1000);
+        afl->fsrv.nyx_runner, afl->fsrv.nyx_aux_string,
+        afl->fsrv.nyx_aux_string_len);
 
     ck_write(fd, afl->fsrv.nyx_aux_string, nyx_aux_string_len, fn_log);
     close(fd);

src/afl-fuzz-extras.c

@@ -176,6 +176,8 @@ void load_extras_file(afl_state_t *afl, u8 *fname, u32 *min_len, u32 *max_len,
     afl->extras =
         afl_realloc((void **)&afl->extras,
                     (afl->extras_cnt + 1) * sizeof(struct extra_data));
+    char *hexdigits = "0123456789abcdef";
+
     if (unlikely(!afl->extras)) { PFATAL("alloc"); }
 
     wptr = afl->extras[afl->extras_cnt].data = ck_alloc(rptr - lptr);
@@ -184,13 +186,12 @@ void load_extras_file(afl_state_t *afl, u8 *fname, u32 *min_len, u32 *max_len,
 
     while (*lptr) {
 
-      char *hexdigits = "0123456789abcdef";
-
       switch (*lptr) {
 
         case 1 ... 31:
         case 128 ... 255:
           WARNF("Non-printable characters in line %u.", cur_line);
+          ++lptr;
           continue;
           break;
 

src/afl-fuzz-init.c

@@ -942,6 +942,7 @@ void perform_dry_run(afl_state_t *afl) {
           if (!q->was_fuzzed) {
 
             q->was_fuzzed = 1;
+            afl->reinit_table = 1;
             --afl->pending_not_fuzzed;
             --afl->active_items;
 
@@ -951,19 +952,48 @@ void perform_dry_run(afl_state_t *afl) {
 
         } else {
 
-          SAYF("\n" cLRD "[-] " cRST
-               "The program took more than %u ms to process one of the initial "
-               "test cases.\n"
-               "    This is bad news; raising the limit with the -t option is "
-               "possible, but\n"
-               "    will probably make the fuzzing process extremely slow.\n\n"
+          static int say_once = 0;
 
-               "    If this test case is just a fluke, the other option is to "
-               "just avoid it\n"
-               "    altogether, and find one that is less of a CPU hog.\n",
-               afl->fsrv.exec_tmout);
+          if (!say_once) {
 
-          FATAL("Test case '%s' results in a timeout", fn);
+            SAYF(
+                "\n" cLRD "[-] " cRST
+                "The program took more than %u ms to process one of the "
+                "initial "
+                "test cases.\n"
+                "    This is bad news; raising the limit with the -t option is "
+                "possible, but\n"
+                "    will probably make the fuzzing process extremely slow.\n\n"
+
+                "    If this test case is just a fluke, the other option is to "
+                "just avoid it\n"
+                "    altogether, and find one that is less of a CPU hog.\n",
+                afl->fsrv.exec_tmout);
+
+            if (!afl->afl_env.afl_ignore_seed_problems) {
+
+              FATAL("Test case '%s' results in a timeout", fn);
+
+            }
+
+            say_once = 1;
+
+          }
+
+          if (!q->was_fuzzed) {
+
+            q->was_fuzzed = 1;
+            afl->reinit_table = 1;
+            --afl->pending_not_fuzzed;
+            --afl->active_items;
+
+          }
+
+          q->disabled = 1;
+          q->perf_score = 0;
+
+          WARNF("Test case '%s' results in a timeout, skipping", fn);
+          break;
 
         }
 
@@ -1058,7 +1088,19 @@ void perform_dry_run(afl_state_t *afl) {
 
         } else {
 
-          WARNF("Test case '%s' results in a crash, skipping", fn);
+          if (afl->afl_env.afl_crashing_seeds_as_new_crash) {
+
+            WARNF(
+                "Test case '%s' results in a crash, "
+                "as AFL_CRASHING_SEEDS_AS_NEW_CRASH is set, "
+                "saving as a new crash",
+                fn);
+
+          } else {
+
+            WARNF("Test case '%s' results in a crash, skipping", fn);
+
+          }
 
         }
 
@@ -1073,40 +1115,100 @@ void perform_dry_run(afl_state_t *afl) {
         if (!q->was_fuzzed) {
 
           q->was_fuzzed = 1;
+          afl->reinit_table = 1;
           --afl->pending_not_fuzzed;
           --afl->active_items;
 
         }
 
-        q->disabled = 1;
-        q->perf_score = 0;
+        /* Crashing seeds will be regarded as new crashes on startup */
+        if (afl->afl_env.afl_crashing_seeds_as_new_crash) {
 
-        u32 i = 0;
-        while (unlikely(i < afl->queued_items && afl->queue_buf[i] &&
-                        afl->queue_buf[i]->disabled)) {
+          ++afl->total_crashes;
 
-          ++i;
+          if (likely(!afl->non_instrumented_mode)) {
 
-        }
+            classify_counts(&afl->fsrv);
 
-        if (i < afl->queued_items && afl->queue_buf[i]) {
+            simplify_trace(afl, afl->fsrv.trace_bits);
 
-          afl->queue = afl->queue_buf[i];
+            if (!has_new_bits(afl, afl->virgin_crash)) { break; }
+
+          }
+
+          if (unlikely(!afl->saved_crashes) &&
+              (afl->afl_env.afl_no_crash_readme != 1)) {
+
+            write_crash_readme(afl);
+
+          }
+
+          u8  crash_fn[PATH_MAX];
+          u8 *use_name = strstr(q->fname, ",orig:");
+
+          afl->stage_name = "dry_run";
+          afl->stage_short = "dry_run";
+
+#ifndef SIMPLE_FILES
+
+          snprintf(crash_fn, PATH_MAX, "%s/crashes/id:%06llu,sig:%02u,%s%s",
+                   afl->out_dir, afl->saved_crashes, afl->fsrv.last_kill_signal,
+                   describe_op(afl, 0,
+                               NAME_MAX - strlen("id:000000,sig:00,") -
+                                   strlen(use_name)),
+                   use_name);
+
+#else
+
+          snprintf(crash_fn, PATH_MAX, "%s/crashes/id_%06llu_%02u",
+                   afl->out_dir, afl->saved_crashes,
+                   afl->fsrv.last_kill_signal);
+
+#endif
+
+          ++afl->saved_crashes;
+
+          fd = open(crash_fn, O_WRONLY | O_CREAT | O_EXCL, DEFAULT_PERMISSION);
+          if (unlikely(fd < 0)) { PFATAL("Unable to create '%s'", crash_fn); }
+          ck_write(fd, use_mem, read_len, crash_fn);
+          close(fd);
+
+          afl->last_crash_time = get_cur_time();
+          afl->last_crash_execs = afl->fsrv.total_execs;
 
         } else {
 
-          afl->queue = afl->queue_buf[0];
+          u32 i = 0;
+          while (unlikely(i < afl->queued_items && afl->queue_buf[i] &&
+                          afl->queue_buf[i]->disabled)) {
+
+            ++i;
+
+          }
+
+          if (i < afl->queued_items && afl->queue_buf[i]) {
+
+            afl->queue = afl->queue_buf[i];
+
+          } else {
+
+            afl->queue = afl->queue_buf[0];
+
+          }
+
+          afl->max_depth = 0;
+          for (i = 0; i < afl->queued_items && likely(afl->queue_buf[i]); i++) {
+
+            if (!afl->queue_buf[i]->disabled &&
+                afl->queue_buf[i]->depth > afl->max_depth)
+              afl->max_depth = afl->queue_buf[i]->depth;
+
+          }
 
         }
 
-        afl->max_depth = 0;
-        for (i = 0; i < afl->queued_items && likely(afl->queue_buf[i]); i++) {
-
-          if (!afl->queue_buf[i]->disabled &&
-              afl->queue_buf[i]->depth > afl->max_depth)
-            afl->max_depth = afl->queue_buf[i]->depth;
-
-        }
+        q->disabled = 1;
+        q->perf_score = 0;
 
         break;
 
@@ -1192,6 +1294,7 @@ void perform_dry_run(afl_state_t *afl) {
           if (!p->was_fuzzed) {
 
             p->was_fuzzed = 1;
+            afl->reinit_table = 1;
             --afl->pending_not_fuzzed;
             --afl->active_items;
 
@@ -1212,6 +1315,7 @@ void perform_dry_run(afl_state_t *afl) {
           if (!q->was_fuzzed) {
 
             q->was_fuzzed = 1;
+            afl->reinit_table = 1;
             --afl->pending_not_fuzzed;
             --afl->active_items;
 
@@ -2199,7 +2303,8 @@ void check_crash_handling(void) {
      reporting the awful way. */
 
   #if !TARGET_OS_IPHONE
-  if (system("launchctl list 2>/dev/null | grep -q '\\.ReportCrash$'")) return;
+  if (system("launchctl list 2>/dev/null | grep -q '\\.ReportCrash\\>'"))
+    return;
 
   SAYF(
       "\n" cLRD "[-] " cRST

src/afl-fuzz-mutators.c

@@ -397,6 +397,18 @@ struct custom_mutator *load_custom_mutator(afl_state_t *afl, const char *fn) {
 
   }
 
+  /* "afl_custom_post_run", optional */
+  mutator->afl_custom_post_run = dlsym(dh, "afl_custom_post_run");
+  if (!mutator->afl_custom_post_run) {
+
+    ACTF("optional symbol 'afl_custom_post_run' not found.");
+
+  } else {
+
+    OKF("Found 'afl_custom_post_run'.");
+
+  }
+
   /* "afl_custom_queue_new_entry", optional */
   mutator->afl_custom_queue_new_entry = dlsym(dh, "afl_custom_queue_new_entry");
   if (!mutator->afl_custom_queue_new_entry) {

src/afl-fuzz-one.c

@@ -577,13 +577,13 @@ u8 fuzz_one_original(afl_state_t *afl) {
    * SIMPLE BITFLIP (+dictionary construction) *
    *********************************************/
 
-#define FLIP_BIT(_ar, _b)                   \
-  do {                                      \
-                                            \
-    u8 *_arf = (u8 *)(_ar);                 \
-    u32 _bf = (_b);                         \
-    _arf[(_bf) >> 3] ^= (128 >> ((_bf)&7)); \
-                                            \
+#define FLIP_BIT(_ar, _b)                     \
+  do {                                        \
+                                              \
+    u8 *_arf = (u8 *)(_ar);                   \
+    u32 _bf = (_b);                           \
+    _arf[(_bf) >> 3] ^= (128 >> ((_bf) & 7)); \
+                                              \
   } while (0)
 
   /* Single walking bit. */
@@ -1895,6 +1895,8 @@ custom_mutator_stage:
 
     if (el->afl_custom_fuzz) {
 
+      havoc_queued = afl->queued_items;
+
       afl->current_custom_fuzz = el;
       afl->stage_name = el->name_short;
 
@@ -2216,7 +2218,7 @@ havoc_stage:
 
       }
 
-    retry_havoc_step : {
+    retry_havoc_step: {
 
       u32 r = rand_below(afl, rand_max), item;
 
@@ -2995,7 +2997,7 @@ havoc_stage:
           // fprintf(stderr, "val: %u-%u = %ld\n", off, off2, val);
 
           char buf[20];
-          snprintf(buf, sizeof(buf), "%ld", val);
+          snprintf(buf, sizeof(buf), "%" PRId64, val);
 
           // fprintf(stderr, "BEFORE: %s\n", out_buf);
 
@@ -3442,7 +3444,12 @@ abandon_entry:
     --afl->pending_not_fuzzed;
     afl->queue_cur->was_fuzzed = 1;
     afl->reinit_table = 1;
-    if (afl->queue_cur->favored) { --afl->pending_favored; }
+    if (afl->queue_cur->favored) {
+
+      --afl->pending_favored;
+      afl->smallest_favored = -1;
+
+    }
 
   }
 
@@ -3698,13 +3705,13 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
    * SIMPLE BITFLIP (+dictionary construction) *
    *********************************************/
 
-#define FLIP_BIT(_ar, _b)                   \
-  do {                                      \
-                                            \
-    u8 *_arf = (u8 *)(_ar);                 \
-    u32 _bf = (_b);                         \
-    _arf[(_bf) >> 3] ^= (128 >> ((_bf)&7)); \
-                                            \
+#define FLIP_BIT(_ar, _b)                     \
+  do {                                        \
+                                              \
+    u8 *_arf = (u8 *)(_ar);                   \
+    u32 _bf = (_b);                           \
+    _arf[(_bf) >> 3] ^= (128 >> ((_bf) & 7)); \
+                                              \
   } while (0)
 
   /* Single walking bit. */
@@ -5905,7 +5912,13 @@ pacemaker_fuzzing:
 
             --afl->pending_not_fuzzed;
             afl->queue_cur->was_fuzzed = 1;
-            if (afl->queue_cur->favored) { --afl->pending_favored; }
+            afl->reinit_table = 1
+            if (afl->queue_cur->favored) {
+
+              --afl->pending_favored;
+              afl->smallest_favored = -1;
+
+            }
 
           }
 

src/afl-fuzz-python.c

@@ -249,6 +249,8 @@ static py_mutator_t *init_py_module(afl_state_t *afl, u8 *module_name) {
         PyObject_GetAttrString(py_module, "queue_get");
     py_functions[PY_FUNC_FUZZ_SEND] =
         PyObject_GetAttrString(py_module, "fuzz_send");
+    py_functions[PY_FUNC_POST_RUN] =
+        PyObject_GetAttrString(py_module, "post_run");
     py_functions[PY_FUNC_SPLICE_OPTOUT] =
         PyObject_GetAttrString(py_module, "splice_optout");
     if (py_functions[PY_FUNC_SPLICE_OPTOUT]) { afl->custom_splice_optout = 1; }
@@ -468,6 +470,12 @@ struct custom_mutator *load_custom_mutator_py(afl_state_t *afl,
 
   }
 
+  if (py_functions[PY_FUNC_POST_RUN]) {
+
+    mutator->afl_custom_post_run = post_run_py;
+
+  }
+
   if (py_functions[PY_FUNC_SPLICE_OPTOUT]) {
 
     mutator->afl_custom_splice_optout = splice_optout_py;
@@ -925,6 +933,28 @@ void fuzz_send_py(void *py_mutator, const u8 *buf, size_t buf_size) {
 
 }
 
+void post_run_py(void *py_mutator) {
+
+  PyObject *py_args, *py_value;
+
+  py_args = PyTuple_New(0);
+  py_value = PyObject_CallObject(
+      ((py_mutator_t *)py_mutator)->py_functions[PY_FUNC_POST_RUN], py_args);
+  Py_DECREF(py_args);
+
+  if (py_value != NULL) {
+
+    Py_DECREF(py_value);
+
+  } else {
+
+    PyErr_Print();
+    FATAL("Call failed");
+
+  }
+
+}
+
 u8 queue_new_entry_py(void *py_mutator, const u8 *filename_new_queue,
                       const u8 *filename_orig_queue) {
 

src/afl-fuzz-queue.c

@@ -80,6 +80,7 @@ double compute_weight(afl_state_t *afl, struct queue_entry *q,
   if (unlikely(weight < 0.1)) { weight = 0.1; }
   if (unlikely(q->favored)) { weight *= 5; }
   if (unlikely(!q->was_fuzzed)) { weight *= 2; }
+  if (unlikely(q->fs_redundant)) { weight *= 0.8; }
 
   return weight;
 
@@ -701,13 +702,20 @@ void update_bitmap_score(afl_state_t *afl, struct queue_entry *q) {
   u64 fav_factor;
   u64 fuzz_p2;
 
-  if (unlikely(afl->schedule >= FAST && afl->schedule < RARE))
+  if (likely(afl->schedule >= FAST && afl->schedule < RARE)) {
+
     fuzz_p2 = 0;  // Skip the fuzz_p2 comparison
-  else if (unlikely(afl->schedule == RARE))
+
+  } else if (unlikely(afl->schedule == RARE)) {
+
     fuzz_p2 = next_pow2(afl->n_fuzz[q->n_fuzz_entry]);
-  else
+
+  } else {
+
     fuzz_p2 = q->fuzz_level;
 
+  }
+
   if (unlikely(afl->schedule >= RARE) || unlikely(afl->fixed_seed)) {
 
     fav_factor = q->len << 2;
@@ -729,12 +737,22 @@ void update_bitmap_score(afl_state_t *afl, struct queue_entry *q) {
         /* Faster-executing or smaller test cases are favored. */
         u64 top_rated_fav_factor;
         u64 top_rated_fuzz_p2;
-        if (unlikely(afl->schedule >= FAST && afl->schedule <= RARE))
+
+        if (likely(afl->schedule >= FAST && afl->schedule < RARE)) {
+
+          top_rated_fuzz_p2 = 0;  // Skip the fuzz_p2 comparison
+
+        } else if (unlikely(afl->schedule == RARE)) {
+
           top_rated_fuzz_p2 =
               next_pow2(afl->n_fuzz[afl->top_rated[i]->n_fuzz_entry]);
-        else
+
+        } else {
+
           top_rated_fuzz_p2 = afl->top_rated[i]->fuzz_level;
 
+        }
+
         if (unlikely(afl->schedule >= RARE) || unlikely(afl->fixed_seed)) {
 
           top_rated_fav_factor = afl->top_rated[i]->len << 2;
@@ -746,30 +764,9 @@ void update_bitmap_score(afl_state_t *afl, struct queue_entry *q) {
 
         }
 
-        if (fuzz_p2 > top_rated_fuzz_p2) {
+        if (likely(fuzz_p2 > top_rated_fuzz_p2)) { continue; }
 
-          continue;
-
-        } else if (fuzz_p2 == top_rated_fuzz_p2) {
-
-          if (fav_factor > top_rated_fav_factor) { continue; }
-
-        }
-
-        if (unlikely(afl->schedule >= RARE) || unlikely(afl->fixed_seed)) {
-
-          if (fav_factor > afl->top_rated[i]->len << 2) { continue; }
-
-        } else {
-
-          if (fav_factor >
-              afl->top_rated[i]->exec_us * afl->top_rated[i]->len) {
-
-            continue;
-
-          }
-
-        }
+        if (likely(fav_factor > top_rated_fav_factor)) { continue; }
 
         /* Looks like we're going to win. Decrease ref count for the
            previous winner, discard its afl->fsrv.trace_bits[] if necessary. */
@@ -834,6 +831,8 @@ void cull_queue(afl_state_t *afl) {
   /* Let's see if anything in the bitmap isn't captured in temp_v.
      If yes, and if it has a afl->top_rated[] contender, let's use it. */
 
+  afl->smallest_favored = -1;
+
   for (i = 0; i < afl->fsrv.map_size; ++i) {
 
     if (afl->top_rated[i] && (temp_v[i >> 3] & (1 << (i & 7)))) {
@@ -857,7 +856,16 @@ void cull_queue(afl_state_t *afl) {
         afl->top_rated[i]->favored = 1;
         ++afl->queued_favored;
 
-        if (!afl->top_rated[i]->was_fuzzed) { ++afl->pending_favored; }
+        if (!afl->top_rated[i]->was_fuzzed) {
+
+          ++afl->pending_favored;
+          if (unlikely(afl->smallest_favored < 0)) {
+
+            afl->smallest_favored = (s64)afl->top_rated[i]->id;
+
+          }
+
+        }
 
       }
 
@@ -875,6 +883,8 @@ void cull_queue(afl_state_t *afl) {
 
   }
 
+  afl->reinit_table = 1;
+
 }
 
 /* Calculate case desirability score to adjust the length of havoc fuzzing.

src/afl-fuzz-redqueen.c

@@ -40,7 +40,7 @@ enum {
   IS_FP = 8,       // is a floating point, not an integer
   /* --- below are internal settings, not from target cmplog */
   IS_FP_MOD = 16,    // arithemtic changed floating point
-  IS_INT_MOD = 32,   // arithmetic changed interger
+  IS_INT_MOD = 32,   // arithmetic changed integer
   IS_TRANSFORM = 64  // transformed integer
 
 };
@@ -129,7 +129,6 @@ static struct range *pop_biggest_range(struct range **ranges) {
 }
 
 #ifdef _DEBUG
-// static int  logging = 0;
 static void dump(char *txt, u8 *buf, u32 len) {
 
   u32 i;
@@ -140,6 +139,7 @@ static void dump(char *txt, u8 *buf, u32 len) {
 
 }
 
+/*
 static void dump_file(char *path, char *name, u32 counter, u8 *buf, u32 len) {
 
   char fn[4096];
@@ -155,6 +155,8 @@ static void dump_file(char *path, char *name, u32 counter, u8 *buf, u32 len) {
 
 }
 
+*/
+
 #endif
 
 static u8 get_exec_checksum(afl_state_t *afl, u8 *buf, u32 len, u64 *cksum) {
@@ -571,7 +573,6 @@ static u8 its_fuzz(afl_state_t *afl, u8 *buf, u32 len, u8 *status) {
 
 }
 
-// #ifdef CMPLOG_SOLVE_TRANSFORM
 static int strntoll(const char *str, size_t sz, char **end, int base,
                     long long *out) {
 
@@ -656,7 +657,6 @@ static int is_hex(const char *str) {
 
 }
 
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
 // tests 4 bytes at location
 static int is_base64(const char *str) {
 
@@ -732,12 +732,14 @@ static u32 from_base64(u8 *src, u8 *dst, u32 dst_len) {
 
 }
 
-static void to_base64(u8 *src, u8 *dst, u32 dst_len) {
+static u32 to_base64(u8 *src, u8 *dst, u32 dst_len) {
 
   u32 i, j, v;
-  u32 len = (dst_len >> 2) * 3;
+  //  u32 len = (dst_len >> 2) * 3;
+  u32 len = (dst_len / 3) * 4;
+  if (dst_len % 3) len += 4;
 
-  for (i = 0, j = 0; i < len; i += 3, j += 4) {
+  for (i = 0, j = 0; j < len; i += 3, j += 4) {
 
     v = src[i];
     v = i + 1 < len ? v << 8 | src[i + 1] : v << 8;
@@ -745,7 +747,8 @@ static void to_base64(u8 *src, u8 *dst, u32 dst_len) {
 
     dst[j] = base64_encode_table[(v >> 18) & 0x3F];
     dst[j + 1] = base64_encode_table[(v >> 12) & 0x3F];
-    if (i + 1 < len) {
+
+    if (i + 1 < dst_len) {
 
       dst[j + 2] = base64_encode_table[(v >> 6) & 0x3F];
 
@@ -755,7 +758,7 @@ static void to_base64(u8 *src, u8 *dst, u32 dst_len) {
 
     }
 
-    if (i + 2 < len) {
+    if (i + 2 < dst_len) {
 
       dst[j + 3] = base64_encode_table[v & 0x3F];
 
@@ -767,12 +770,18 @@ static void to_base64(u8 *src, u8 *dst, u32 dst_len) {
 
   }
 
+  dst[len] = 0;
+  return len;
+
 }
 
+#ifdef WORD_SIZE_64
+static u8 cmp_extend_encodingN(afl_state_t *afl, struct cmp_header *h,
+                               u128 pattern, u128 repl, u128 o_pattern,
+                               u128 changed_val, u8 attr, u32 idx,
+                               u32 taint_len, u8 *orig_buf, u8 *buf, u8 *cbuf,
+                               u32 len, u8 do_reverse, u8 lvl, u8 *status);
 #endif
-
-// #endif
-
 static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
                               u64 pattern, u64 repl, u64 o_pattern,
                               u64 changed_val, u8 attr, u32 idx, u32 taint_len,
@@ -797,42 +806,77 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
 
   }
 
-  // fprintf(stderr,
-  //         "Encode: %llx->%llx into %llx(<-%llx) at idx=%u "
-  //         "taint_len=%u shape=%u attr=%u\n",
-  //         o_pattern, pattern, repl, changed_val, idx, taint_len,
-  //         hshape, attr);
+  /*
+  fprintf(stderr,
+          "Encode: %llx->%llx into %llx(<-%llx) at idx=%u "
+          "taint_len=%u shape=%u attr=%u\n",
+          o_pattern, pattern, repl, changed_val, idx, taint_len,
+          hshape, attr);
+  */
+
+  u8 bytes;
+
+  switch (hshape) {
+
+    case 0:
+    case 1:
+      bytes = 1;
+      break;
+    case 2:
+      bytes = 2;
+      break;
+    case 3:
+    case 4:
+      bytes = 4;
+      break;
+    default:
+      bytes = 8;
+
+  }
+
+  // necessary for preventing heap access overflow
+  bytes = MIN(bytes, len - idx);
 
-  // #ifdef CMPLOG_SOLVE_TRANSFORM
   //  reverse atoi()/strnu?toll() is expensive, so we only to it in lvl 3
   if (afl->cmplog_enable_transform && (lvl & LVL3)) {
 
     u8                *endptr;
     u8                 use_num = 0, use_unum = 0;
-    unsigned long long unum;
-    long long          num;
+    unsigned long long unum = 0;
+    long long          num = 0;
 
-    if (afl->queue_cur->is_ascii) {
+    // if (afl->queue_cur->is_ascii) {
 
-      endptr = buf_8;
-      if (strntoll(buf_8, len - idx, (char **)&endptr, 0, &num)) {
+    // we first check if our input are ascii numbers that are transformed to
+    // an integer and used for comparison:
 
-        if (!strntoull(buf_8, len - idx, (char **)&endptr, 0, &unum))
-          use_unum = 1;
+    endptr = buf_8;
+    if (strntoll(buf_8, len - idx, (char **)&endptr, 0, &num)) {
 
-      } else
+      if (!strntoull(buf_8, len - idx, (char **)&endptr, 0, &unum)) {
 
-        use_num = 1;
+        use_unum = 1;
+
+      }
+
+    } else {
+
+      use_num = 1;
 
     }
 
+    //}
+
 #ifdef _DEBUG
     if (idx == 0)
-      fprintf(stderr, "ASCII is=%u use_num=%u use_unum=%u idx=%u %llx==%llx\n",
-              afl->queue_cur->is_ascii, use_num, use_unum, idx, num, pattern);
+      fprintf(stderr,
+              "ASCII is=%u use_num=%u>%lld use_unum=%u>%llu idx=%u "
+              "pattern=0x%llx\n",
+              afl->queue_cur->is_ascii, use_num, num, use_unum, unum, idx,
+              pattern);
 #endif
 
-    // num is likely not pattern as atoi("AAA") will be zero...
+    // atoi("AAA") == 0 so !num means we have to investigate
     if (use_num && ((u64)num == pattern || !num)) {
 
       u8     tmp_buf[32];
@@ -881,29 +925,6 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
     if (pattern != o_pattern && repl == changed_val && attr <= IS_EQUAL) {
 
       u64 b_val, o_b_val, mask;
-      u8  bytes;
-
-      switch (hshape) {
-
-        case 0:
-        case 1:
-          bytes = 1;
-          break;
-        case 2:
-          bytes = 2;
-          break;
-        case 3:
-        case 4:
-          bytes = 4;
-          break;
-        default:
-          bytes = 8;
-
-      }
-
-      // necessary for preventing heap access overflow
-      bytes = MIN(bytes, len - idx);
-
       switch (bytes) {
 
         case 0:                        // cannot happen
@@ -961,10 +982,12 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
       // test for arithmetic, eg. "if ((user_val - 0x1111) == 0x1234) ..."
       s64 diff = pattern - b_val;
       s64 o_diff = o_pattern - o_b_val;
-      /* fprintf(stderr, "DIFF1 idx=%03u shape=%02u %llx-%llx=%lx\n", idx,
-                 hshape, o_pattern, o_b_val, o_diff);
-         fprintf(stderr, "DIFF1 %016llx %llx-%llx=%lx\n", repl, pattern,
-                 b_val, diff); */
+      /*
+             fprintf(stderr, "DIFF1 idx=%03u shape=%02u %llx-%llx=%lx\n", idx,
+                       hshape, o_pattern, o_b_val, o_diff);
+               fprintf(stderr, "DIFF1 %016llx %llx-%llx=%lx\n", repl, pattern,
+                       b_val, diff);
+      */
       if (diff == o_diff && diff) {
 
         // this could be an arithmetic transformation
@@ -1269,13 +1292,141 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
 
   }
 
-  // here we add and subract 1 from the value, but only if it is not an
+  // If 'S' is set for cmplog mode then we try a scale encoding of the value.
+  // Currently we can only handle bytes up to 1 << 55 on 32 bit and 1 << 119
+  // on 64 bit systems.
+  // Caveat: This implementation here works only on little endian systems.
+
+  if (attr < IS_FP && (afl->cmplog_enable_scale || lvl >= LVL3) &&
+      repl == changed_val) {
+
+    u8  do_call = 1;
+    u64 new_val = repl << 2;
+    u32 ilen = 0;
+
+    if (changed_val <= 255) {
+
+      ilen = 1;
+
+    } else if (new_val <= 65535) {
+
+      new_val += 1;  // two byte mode
+      ilen = 2;
+
+    } else if (new_val <= 4294967295) {
+
+      new_val += 2;  // four byte mode
+      ilen = 4;
+
+    } else {
+
+#ifndef WORD_SIZE_64
+      if (repl <= 0x00ffffffffffffff) {
+
+        new_val = repl << 8;
+        u8  scale_len = 0;
+        u64 tmp_val = repl;
+        while (tmp_val) {
+
+          tmp_val >>= 8;
+          ++scale_len;
+
+        }  // scale_len will be >= 4;
+
+        if (scale_len >= 4) {
+
+          scale_len -= 4;
+
+        } else {
+
+          scale_len = 0;
+
+        };
+
+        new_val += (scale_len << 2) + 3;
+        ilen = scale_len + 5;
+
+      } else {
+
+        do_call = 0;
+
+      }
+
+#else
+      {
+
+        u128 new_vall = ((u128)repl) << 8;
+        u8   scale_len = 0;
+        u128 tmp_val = (u128)repl;
+
+        while (tmp_val) {
+
+          tmp_val >>= 8;
+          ++scale_len;
+
+        }  // scale_len will be >= 4;
+
+        if (scale_len >= 4) {
+
+          scale_len -= 4;
+
+        } else {
+
+          scale_len = 0;
+
+        };
+
+        new_vall += (scale_len << 2) + 3;
+        ilen = scale_len + 5;
+
+        if (ilen <= its_len && ilen > 1) {
+
+          u8 tmpbuf[32];
+          memcpy(tmpbuf, buf + idx, ilen);
+          memcpy(buf + idx, (char *)&new_vall, ilen);
+
+          if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+  #ifdef CMPLOG_COMBINE
+          if (*status == 1) { memcpy(cbuf + idx, (char *)&new_vall, ilen); }
+  #endif
+          memcpy(buf + idx, tmpbuf, ilen);
+
+        };
+
+        do_call = 0;
+
+      }
+
+#endif
+
+    }
+
+    if (do_call) {
+
+      if (ilen <= its_len && ilen > 1) {
+
+        u8 tmpbuf[32];
+        memcpy(tmpbuf, buf + idx, ilen);
+        memcpy(buf + idx, (char *)&new_val, ilen);
+
+        if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+#ifdef CMPLOG_COMBINE
+        if (*status == 1) { memcpy(cbuf + idx, (char *)&new_val, ilen); }
+#endif
+        memcpy(buf + idx, tmpbuf, ilen);
+
+      };
+
+    }
+
+  }
+
+  // here we add and subtract 1 from the value, but only if it is not an
   // == or != comparison
   // Bits: 1 = Equal, 2 = Greater, 4 = Lesser, 8 = Float
   //       16 = modified float, 32 = modified integer (modified = wont match
   //                                                   in original buffer)
 
-  // #ifdef CMPLOG_SOLVE_ARITHMETIC
   if (!afl->cmplog_enable_arith || lvl < LVL3 || attr == IS_TRANSFORM) {
 
     return 0;
@@ -1536,6 +1687,77 @@ static u8 cmp_extend_encodingN(afl_state_t *afl, struct cmp_header *h,
 
     }
 
+    // Scale encoding only works on little endian systems
+
+    if (attr < IS_FP && attr < 32 &&
+        (afl->cmplog_enable_scale || lvl >= LVL3)) {
+
+      u128 new_val = repl << 2;
+      u128 max_scale = (u128)1 << 120;
+      u32  ilen = 0;
+      u8   do_call = 1;
+
+      if (new_val <= 255) {
+
+        ilen = 1;
+
+      } else if (new_val <= 65535) {
+
+        new_val += 1;  // two byte mode
+        ilen = 2;
+
+      } else if (new_val <= 4294967295) {
+
+        new_val += 2;  // four byte mode
+        ilen = 4;
+
+      } else if (repl < max_scale) {
+
+        new_val = (u128)repl << 8;
+        u8   scale_len = 0;
+        u128 tmp_val = (u128)repl;
+        while (tmp_val) {
+
+          tmp_val >>= 8;
+          ++scale_len;
+
+        }  // scale_len will be >= 4;
+
+        if (scale_len >= 4) {
+
+          scale_len -= 4;
+
+        } else {
+
+          scale_len = 0;
+
+        };
+
+        new_val += (scale_len << 2) + 3;
+        ilen = scale_len + 5;
+
+      } else {
+
+        do_call = 0;
+
+      }
+
+      if (do_call && ilen <= its_len) {
+
+        u8 tmpbuf[32];
+        memcpy(tmpbuf, buf + idx, ilen);
+        memcpy(buf + idx, (char *)&new_val, ilen);
+
+        if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+  #ifdef CMPLOG_COMBINE
+        if (*status == 1) { memcpy(cbuf + idx, (char *)&new_val, ilen); }
+  #endif
+        memcpy(buf + idx, tmpbuf, ilen);
+
+      };
+
+    }
+
   }
 
   return 0;
@@ -1606,7 +1828,7 @@ static void try_to_add_to_dictN(afl_state_t *afl, u128 v, u8 size) {
   for (k = 0; k < size; ++k) {
 
   #else
-  u32    off = 16 - size;
+  u32 off = 16 - size;
   for (k = 16 - size; k < 16; ++k) {
 
   #endif
@@ -1684,6 +1906,8 @@ static u8 cmp_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
 
 #endif
 
+  if (hshape < 2) { return 0; }
+
   for (i = 0; i < loggeds; ++i) {
 
     struct cmp_operands *o = &afl->shm.cmp_map->log[key][i];
@@ -2009,8 +2233,14 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
   its_len = MIN(its_len, taint_len);
   u32 saved_its_len = its_len;
 
+  // fprintf(stderr, "its_len=%u repl=%s\n", its_len, repl);
+
+  if (its_len <= 1) { return 0; }
+
   if (lvl & LVL3) {
 
+    if (memcmp(changed_val, repl, its_len) != 0) { return 0; }
+
     u32 max_to = MIN(4U, idx);
     if (!(lvl & LVL1) && max_to) { from = 1; }
     to = max_to;
@@ -2021,27 +2251,32 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
   (void)(j);
 
 #ifdef _DEBUG
-  fprintf(stderr, "RTN T idx=%u lvl=%02x is_txt=%u shape=%u/%u ", idx, lvl,
-          o->v0_len >= 0x80 ? 1 : 0, hshape, l0);
-  for (j = 0; j < 8; j++)
-    fprintf(stderr, "%02x", orig_buf[idx + j]);
-  fprintf(stderr, " -> ");
-  for (j = 0; j < 8; j++)
-    fprintf(stderr, "%02x", o_pattern[j]);
-  fprintf(stderr, " <= ");
-  for (j = 0; j < 8; j++)
-    fprintf(stderr, "%02x", repl[j]);
-  fprintf(stderr, "\n");
-  fprintf(stderr, "                ");
-  for (j = 0; j < 8; j++)
-    fprintf(stderr, "%02x", buf[idx + j]);
-  fprintf(stderr, " -> ");
-  for (j = 0; j < 8; j++)
-    fprintf(stderr, "%02x", pattern[j]);
-  fprintf(stderr, " <= ");
-  for (j = 0; j < 8; j++)
-    fprintf(stderr, "%02x", changed_val[j]);
-  fprintf(stderr, "\n");
+  if (idx == 0) {
+
+    fprintf(stderr, "RTN T idx=%u lvl=%02x is_txt=%u shape=%u/%u ", idx, lvl,
+            o->v0_len >= 0x80 ? 1 : 0, hshape, l0);
+    for (j = 0; j < 8; j++)
+      fprintf(stderr, "%02x", orig_buf[idx + j]);
+    fprintf(stderr, " -> ");
+    for (j = 0; j < 8; j++)
+      fprintf(stderr, "%02x", o_pattern[j]);
+    fprintf(stderr, " <= ");
+    for (j = 0; j < 8; j++)
+      fprintf(stderr, "%02x", repl[j]);
+    fprintf(stderr, "\n");
+    fprintf(stderr, "                ");
+    for (j = 0; j < 8; j++)
+      fprintf(stderr, "%02x", buf[idx + j]);
+    fprintf(stderr, " -> ");
+    for (j = 0; j < 8; j++)
+      fprintf(stderr, "%02x", pattern[j]);
+    fprintf(stderr, " <= ");
+    for (j = 0; j < 8; j++)
+      fprintf(stderr, "%02x", changed_val[j]);
+    fprintf(stderr, "\n");
+
+  }
+
 #endif
 
   // Try to match the replace value up to 4 bytes before the current idx.
@@ -2050,6 +2285,9 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
   //     if (memcmp(user_val, "TEST-VALUE") == 0) ...
   // We only do this in lvl 3, otherwise we only do direct matching
 
+  // fprintf(stderr, "XXXX FROMB64 saved_idx=%u its_len=%u from=%u to=%u FROMHEX
+  // repl=%s\n", saved_idx, saved_its_len, from, to, repl);
+
   for (pre = from; pre <= to; pre++) {
 
     if (*status != 1 && (!pre || !memcmp(buf + saved_idx - pre, repl, pre))) {
@@ -2089,9 +2327,7 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
   if (afl->cmplog_enable_transform && (lvl & LVL3)) {
 
     u32 toupper = 0, tolower = 0, xor = 0, arith = 0, tohex = 0, fromhex = 0;
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
     u32 tob64 = 0, fromb64 = 0;
-#endif
     u32 from_0 = 0, from_x = 0, from_X = 0, from_slash = 0, from_up = 0;
     u32 to_0 = 0, to_x = 0, to_slash = 0, to_up = 0;
     u8  xor_val[32], arith_val[32], tmp[48];
@@ -2144,7 +2380,8 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
 
       }
 
-      if (i < 16 && is_hex(repl + (i << 1))) {
+      if (afl->cmplog_enable_xtreme_transform && i < 16 &&
+          is_hex(repl + (i << 1))) {
 
         ++tohex;
 
@@ -2163,9 +2400,9 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
 
       }
 
-      if ((i % 2)) {
+      if (afl->cmplog_enable_xtreme_transform && (i % 2) == 1) {
 
-        if (len > idx + i + 1 && is_hex(orig_buf + idx + i)) {
+        if (len > idx + i + 1 && is_hex(orig_buf + idx + i - 1)) {
 
           fromhex += 2;
 
@@ -2187,21 +2424,24 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
 
       }
 
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
-      if (i % 3 == 2 && i < 24) {
+      if (afl->cmplog_enable_xtreme_transform) {
 
-        if (is_base64(repl + ((i / 3) << 2))) tob64 += 3;
+        if (i % 3 == 2 && i < 24) {
+
+          if (is_base64(repl + ((i / 3) << 2))) tob64 += 3;
+
+        }
+
+        // fprintf(stderr, "X FROMB64 idx=%u i=%u repl=%s\n", saved_idx, i,
+        // repl);
+        if (i % 4 == 3 && i < 24) {
+
+          if (is_base64(orig_buf + idx + i - 3)) fromb64 += 4;
+
+        }
 
       }
 
-      if (i % 4 == 3 && i < 24) {
-
-        if (is_base64(orig_buf + idx + i - 3)) fromb64 += 4;
-
-      }
-
-#endif
-
       if ((o_pattern[i] ^ orig_buf[idx + i]) == xor_val[i] && xor_val[i]) {
 
         ++xor;
@@ -2229,45 +2469,70 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
       }
 
 #ifdef _DEBUG
-      fprintf(stderr,
-              "RTN idx=%u loop=%u xor=%u arith=%u tolower=%u toupper=%u "
-              "tohex=%u fromhex=%u to_0=%u to_slash=%u to_x=%u "
-              "from_0=%u from_slash=%u from_x=%u\n",
-              idx, i, xor, arith, tolower, toupper, tohex, fromhex, to_0,
-              to_slash, to_x, from_0, from_slash, from_x);
-  #ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
-      fprintf(stderr, "RTN idx=%u loop=%u tob64=%u from64=%u\n", tob64,
-              fromb64);
-  #endif
-#endif
+      if (idx == 0) {
 
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
-      // input is base64 and converted to binary? convert repl to base64!
-      if ((i % 4) == 3 && i < 24 && fromb64 > i) {
+        fprintf(stderr, "RTN Z %s %s %s %s repl=%s\n", buf, pattern, orig_buf,
+                o_pattern, repl);
+        fprintf(
+            stderr,
+            "RTN Z idx=%u len=%u loop=%u xor=%u arith=%u tolower=%u toupper=%u "
+            "tohex=%u fromhex=%u to_0=%u to_slash=%u to_x=%u "
+            "from_0=%u from_slash=%u from_x=%u\n",
+            idx, its_len, i, xor, arith, tolower, toupper, tohex, fromhex, to_0,
+            to_slash, to_x, from_0, from_slash, from_x);
+        if (afl->cmplog_enable_xtreme_transform) {
 
-        to_base64(repl, tmp, i + 1);
-        memcpy(buf + idx, tmp, i + 1);
-        if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
-        // fprintf(stderr, "RTN ATTEMPT fromb64 %u result %u\n", fromb64,
-        // *status);
+          fprintf(stderr, "RTN Z idx=%u loop=%u tob64=%u from64=%u\n", idx, i,
+                  tob64, fromb64);
 
-      }
-
-      // input is converted to base64? decode repl with base64!
-      if ((i % 3) == 2 && i < 24 && tob64 > i) {
-
-        u32 olen = from_base64(repl, tmp, i + 1);
-        memcpy(buf + idx, tmp, olen);
-        if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
-        // fprintf(stderr, "RTN ATTEMPT tob64 %u idx=%u result %u\n", tob64,
-        // idx, *status);
+        }
 
       }
 
 #endif
 
+      if (afl->cmplog_enable_xtreme_transform) {
+
+        // input is base64 and converted to binary? convert repl to base64!
+        // fprintf(stderr, "FROMB64 idx=%u i=%u %% 4 == 3 && i < 24 &&
+        // fromb64=%u > i, repl=%s\n", saved_idx, i, fromb64, repl);
+        if ((i % 4) == 3 && i < 24 && fromb64 > i) {
+
+          for (u32 hlen = i; hlen + saved_idx < len && hlen <= its_len;
+               ++hlen) {
+
+            u32 res = to_base64(repl, tmp, hlen);
+            // fprintf(stderr, "FROMB64 GOGO! idx=%u repl=%s tmp[%u]=%s
+            // hlen=%u\n", saved_idx, repl, res, tmp, hlen);
+            if (res + saved_idx < len) {
+
+              memcpy(buf + idx, tmp, res);
+              if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+              // fprintf(stderr, "RTN ATTEMPT FROMB64 idx=%u fromb64 %u %s %s
+              // result %u\n",       saved_idx,      fromb64,      tmp, repl,
+              // *status);
+
+            }
+
+          }
+
+        }
+
+        // input is converted to base64? decode repl with base64!
+        if ((i % 3) == 2 && i < 24 && tob64 > i) {
+
+          u32 olen = from_base64(repl, tmp, i + 1);
+          memcpy(buf + idx, tmp, olen);
+          if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+          // fprintf(stderr, "RTN ATTEMPT tob64 %u idx=%u result %u\n", tob64,
+          // idx, *status);
+
+        }
+
+      }
+
       // input is converted to hex? convert repl to binary!
-      if (i < 16 && tohex > i) {
+      if (afl->cmplog_enable_xtreme_transform && i < 16 && tohex > i) {
 
         u32 off;
         if (to_slash + to_x + to_0 == 2) {
@@ -2292,8 +2557,8 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
       }
 
       // input is hex and converted to binary? convert repl to hex!
-      if (i && (i % 2) && i < 16 && fromhex &&
-          fromhex + from_slash + from_x + from_0 > i) {
+      if (afl->cmplog_enable_xtreme_transform && (i % 2) == 1 && i < 16 &&
+          fromhex && fromhex + from_slash + from_x + from_0 > i) {
 
         u8 off = 0;
         if (from_slash && from_x) {
@@ -2328,32 +2593,37 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
 
         }
 
-        if (to_up == 1) {
+        for (u32 hlen = i; hlen <= (i << 1) && hlen + idx < len; hlen += i) {
 
-          for (j = 0; j <= (i >> 1); j++) {
+          if (to_up == 1) {
 
-            tmp[off + (j << 1)] = hex_table_up[repl[j] >> 4];
-            tmp[off + (j << 1) + 1] = hex_table_up[repl[j] % 16];
+            for (j = 0; j <= (hlen >> 1); j++) {
+
+              tmp[off + (j << 1)] = hex_table_up[repl[j] >> 4];
+              tmp[off + (j << 1) + 1] = hex_table_up[repl[j] % 16];
+
+            }
+
+          } else {
+
+            for (j = 0; j <= (hlen >> 1); j++) {
+
+              tmp[off + (j << 1)] = hex_table_low[repl[j] >> 4];
+              tmp[off + (j << 1) + 1] = hex_table_low[repl[j] % 16];
+
+            }
 
           }
 
-        } else {
-
-          for (j = 0; j <= (i >> 1); j++) {
-
-            tmp[off + (j << 1)] = hex_table_low[repl[j] >> 4];
-            tmp[off + (j << 1) + 1] = hex_table_low[repl[j] % 16];
-
-          }
+          memcpy(buf + idx, tmp, hlen + 1 + off);
+          if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+          tmp[hlen + 1 + off] = 0;
+          // fprintf(stderr, "RTN ATTEMPT idx=%u len=%u fromhex %u %s %s result
+          // %u\n", idx, len, fromhex, tmp, repl, *status);
+          memcpy(buf + idx, save, hlen + 1 + off);
 
         }
 
-        memcpy(buf + idx, tmp, i + 1 + off);
-        if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
-        // fprintf(stderr, "RTN ATTEMPT fromhex %u result %u\n", fromhex,
-        // *status);
-        memcpy(buf + idx, save, i + 1 + off);
-
       }
 
       if (xor > i) {
@@ -2401,11 +2671,9 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
 
       if ((i >= 7 &&
            (i >= xor&&i >= arith &&i >= tolower &&i >= toupper &&i > tohex &&i >
-                (fromhex + from_0 + from_x + from_slash + 1)
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
-            && i > tob64 + 3 && i > fromb64 + 4
-#endif
-            )) ||
+                (fromhex + from_0 + from_x + from_slash + 1) &&
+            (afl->cmplog_enable_xtreme_transform && i > tob64 + 3 &&
+             i > fromb64 + 4))) ||
           repl[i] != changed_val[i] || *status == 1) {
 
         break;
@@ -2418,8 +2686,6 @@ static u8 rtn_extend_encoding(afl_state_t *afl, u8 entry,
 
   }
 
-  // #endif
-
   return 0;
 
 }
@@ -2429,11 +2695,13 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
 
   struct tainted    *t;
   struct cmp_header *h = &afl->shm.cmp_map->headers[key];
-  u32                i, j, idx, have_taint = 1, taint_len, loggeds;
+  u32                i, idx, have_taint = 1, taint_len, loggeds;
   u8                 status = 0, found_one = 0;
 
   hshape = SHAPE_BYTES(h->shape);
 
+  if (hshape < 2) { return 0; }
+
   if (h->hits > CMP_MAP_RTN_H) {
 
     loggeds = CMP_MAP_RTN_H;
@@ -2452,19 +2720,23 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
     struct cmpfn_operands *orig_o =
         &((struct cmpfn_operands *)afl->orig_cmp_map->log[key])[i];
 
-    // opt not in the paper
-    for (j = 0; j < i; ++j) {
-
-      if (!memcmp(&((struct cmpfn_operands *)afl->shm.cmp_map->log[key])[j], o,
-                  sizeof(struct cmpfn_operands))) {
-
-        goto rtn_fuzz_next_iter;
-
-      }
-
-    }
-
     /*
+        // opt not in the paper
+        for (j = 0; j < i; ++j) {
+
+          if (!memcmp(&((struct cmpfn_operands *)afl->shm.cmp_map->log[key])[j],
+       o, sizeof(struct cmpfn_operands))) {
+
+            goto rtn_fuzz_next_iter;
+
+          }
+
+        }
+
+    */
+
+#ifdef _DEBUG
+    u32                j;
     struct cmp_header *hh = &afl->orig_cmp_map->headers[key];
     fprintf(stderr, "RTN N hits=%u id=%u shape=%u attr=%u v0=", h->hits, h->id,
             hshape, h->attribute);
@@ -2481,7 +2753,7 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
     for (j = 0; j < 8; j++)
       fprintf(stderr, "%02x", orig_o->v1[j]);
     fprintf(stderr, "\n");
-    */
+#endif
 
     t = taint;
     while (t->next) {
@@ -2515,7 +2787,7 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
       status = 0;
 
 #ifdef _DEBUG
-      int w;
+      u32 w;
       fprintf(stderr, "key=%u idx=%u len=%u o0=", key, idx, hshape);
       for (w = 0; w < hshape; ++w)
         fprintf(stderr, "%02x", orig_o->v0[w]);
@@ -2605,7 +2877,7 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
 
     }
 
-  rtn_fuzz_next_iter:
+    // rtn_fuzz_next_iter:
     afl->stage_cur++;
 
   }
@@ -2818,12 +3090,7 @@ u8 input_to_state_stage(afl_state_t *afl, u8 *orig_buf, u8 *buf, u32 len) {
 
       }
 
-    } else if ((lvl & LVL1)
-
-               // #ifdef CMPLOG_SOLVE_TRANSFORM
-               || ((lvl & LVL3) && afl->cmplog_enable_transform)
-               // #endif
-    ) {
+    } else if ((lvl & LVL1) || ((lvl & LVL3) && afl->cmplog_enable_transform)) {
 
       if (unlikely(rtn_fuzz(afl, k, orig_buf, buf, cbuf, len, lvl, taint))) {