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Dev (#1962)

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* Pure Python (3.6) port of benchmark.sh as benchmark.py, no other changes

* Test standard and persistent modes separately

* Add support for multi-core benchmarking

* Save the results to a json file

* Allow config of all experiment params, average across runs

* Add start_time_of_run and total_execs_per_sec, cleanup for PR

* benchmark: cleanup, add results, add a data exploration notebook

* benchmark: add a README, lower default runs from 5 to 3

* benchmark: notebook wording tweaks

* copy 'detect_leaks=0' from ASAN to LSAN

fix for issue #1733, set "detect_leaks=0" when ASAN_OPTIONS contains it and LSAN_OPTIONS are not set.

* fix of fix: make sure ASAN_OPTIONS and LSAN_OPTIONS agree on leak detection

* fix lsan fix

* clang-format 16->17

* Add missing initialisation for havoc_queued during the custom mutator's stage.

* fix dictionary and cmin

* Use direct call to write to OpenBSD

The linker on OpenBSD emits a warning when linking this file:
warning: syscall() may go away, please rewrite code to use direct calls

* Fix possible doc inconsistency for custom mutator's queue_get function.

* update todos

* benchmark: Add support for COMPARISON file

* benchmark: show the number of cores used in COMPARISON

* benchmark: lower minimum Python version to 3.8

* benchmark: use afl's execs/s; increase CPU model width

* benchmark: disallow duplicate entries for the same CPU in COMPARISON

* Update benchmark.py

* fix inf in stats

* Fix benchmark.py

* missing closing parenthesis

* Update benchmark.py

* benchmark: remove self-calculation of execs/sec

* benchmark: update COMPARISON

* benchmark: Update Jupyter notebook and results file.

* benchmark: rename afl_execs_per_sec to execs_per_sec

* benchmark: update README

* update

* add benchmark

* nits

* add benchmarks

* Update unicornafl ref

* Pass correct Nyx ID when creating a Nyx runner

* Fix typo in docker pull command, add exampe to mount current dir as volume (#1914)

* mini fix

* add custom_post_run.c

* update afl-fuzz-run

* update python module

* format code

* update

* merge function

* changes

* code format

* improve cmplog

* nit

* nit

* fix

* fix

* Stop hardcoding the path /usr/local/lib/afl in afl-ld-lto.c and respect the configured PREFIX.

* Add benchmark for Raspberry Pi 5

* ryzen 5950 benchmark

* add missing raspery5

* comparison -> comparison.md

* removing options "-Wl,-rpath" "LLVM_LIBDIR" when using gcc

* fixing -Wl,-rpath=<LLVM_LIBDIR>

* nits

* fix

* afl-cc fixes

* nit

* add n_fuzz to ignore_timeouts

* fix

* Fix #1927

* in-depth blog post

* add AFL_FUZZER_LOOPCOUNT

* AFL_FUZZER_LOOPCOUNT

* fix 2 mutation bugs

* v4.09c release

* v4.10a init

* switch to explore powerschedule as default

* fix MUT_INSERTASCIINUM

* fix MUT_STRATEGY_ARRAY_SIZE

* fix bad fix for MUT_STRATEGY_ARRAY_SIZE

* remove afl-network-client on uninstall

* update nyx

* Improve binary-only related docs

* llvm 18 build fixes.

* code format

* Fix custom_send link

Add a leading '/' to walk in the repo root instead of current dir.

* Use ../ instead

* initial simple injection detection support

* inject docs

* fix for issue #1916, iLLVM crash in split-floatingpoint-compares

* LLVM 17 bug workaround

* finish injection implementation

* remove tmp todo

* update changelog

* forgot to add the injection pass

* Output afl-clang-fast stuffs only if necessary (#1912)

* afl-cc header

* afl-cc common declarations

 - Add afl-cc-state.c
 - Strip includes, find_object, debug/be_quiet/have_*/callname setting from afl-cc.c
 - Use debugf_args in main
 - Modify execvp stuffs to fit new aflcc struct

* afl-cc show usage

* afl-cc mode selecting

1. compiler_mode by callname in argv[0]
2. compiler_mode by env "AFL_CC_COMPILER"
3. compiler_mode/instrument_mode by command line options "--afl-..."
4. instrument_mode/compiler_mode by various env vars including "AFL_LLVM_INSTRUMENT"
5. final checking steps
6. print "... - mode: %s-%s\n"
7. determine real argv[0] according to compiler_mode

* afl-cc macro defs

* afl-cc linking behaviors

* afl-cc fsanitize behaviors

* afl-cc misc

* afl-cc body update

* afl-cc all-in-one

formated with custom-format.py

* nits

---------

Co-authored-by: vanhauser-thc <vh@thc.org>

* changelog

* update grammar mutator

* lto llvm 12+

* docs(custom_mutators): fix missing ':' (#1953)

* Fix broken LTO mode and response file support (#1948)

* Strip `-Wl,-no-undefined` during compilation (#1952)

Make the compiler wrapper stripping `-Wl,-no-undefined` in addition to `-Wl,--no-undefined`.
Both versions of the flag are accepted by clang and, therefore, used by building systems in the wild (e.g., samba will not build without this fix).

* Remove dead code in write_to_testcase (#1955)

The custom_mutators_count check in if case is duplicate with if condition.
The else case is custom_mutators_count == 0, neither custom_mutator_list iteration nor sent check needed.

Signed-off-by: Xeonacid <h.dwwwwww@gmail.com>

* update qemuafl

* WIP: Add ability to generate drcov trace using QEMU backend (#1956)

* Document new drcov QEMU plugin

* Add link to lightkeeper for QEMU drcov file loading

---------

Co-authored-by: Jean-Romain Garnier <jean-romain.garnier@airbus.com>

* code format

* changelog

* sleep on uid != 0 afl-system-config

* fix segv about skip_next, warn on unsupported cases of linking options (#1958)

* todos

* ensure afl-cc only allows available compiler modes

* update grammar mutator

* disable aslr on apple

* fix for arm64

* help selective instrumentation

* typos

* macos

* add compiler test script

* apple fixes

---------

Signed-off-by: Xeonacid <h.dwwwwww@gmail.com>
Co-authored-by: Chris Ball <chris@printf.net>
Co-authored-by: hexcoder <hexcoder-@users.noreply.github.com>
Co-authored-by: hexcoder- <heiko@hexco.de>
Co-authored-by: Manuel Carrasco <m.carrasco@imperial.ac.uk>
Co-authored-by: Jasper Lievisse Adriaanse <j@jasper.la>
Co-authored-by: ifyGecko <26214995+ifyGecko@users.noreply.github.com>
Co-authored-by: Dominik Maier <domenukk@gmail.com>
Co-authored-by: Christian Holler (:decoder) <choller@mozilla.com>
Co-authored-by: Carlo Maragno <ste.maragno@gmail.com>
Co-authored-by: yangzao <yangzaocn@outlook.com>
Co-authored-by: Romain Geissler <romain.geissler@amadeus.com>
Co-authored-by: Jakob Lell <jakob@jakoblell.com>
Co-authored-by: vincenzo MEZZELA <vincenzo.mezzela@amadeus.com>
Co-authored-by: Andrea Fioraldi <andreafioraldi@gmail.com>
Co-authored-by: Bet4 <0xbet4@gmail.com>
Co-authored-by: David Carlier <devnexen@gmail.com>
Co-authored-by: Xeonacid <h.dwwwwww@gmail.com>
Co-authored-by: Sonic <50692172+SonicStark@users.noreply.github.com>
Co-authored-by: Nils Bars <nils.bars@rub.de>
Co-authored-by: Jean-Romain Garnier <7504819+JRomainG@users.noreply.github.com>
Co-authored-by: Jean-Romain Garnier <jean-romain.garnier@airbus.com>
This commit is contained in:
van Hauser 2024-01-20 11:19:46 +01:00 committed by GitHub
parent 1f8fe4dc6d
commit fff7f1c558
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GPG Key ID: B5690EEEBB952194
77 changed files with 6134 additions and 2685 deletions
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2
.custom-format.py
View File

@ -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", "")

7
GNUmakefile
View File

@ -782,7 +782,7 @@ install: all $(MANPAGES)
@rm -f $${DESTDIR}$(BIN_PATH)/afl-plot.sh
@rm -f $${DESTDIR}$(BIN_PATH)/afl-as
@rm -f $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-32.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-64.o $${DESTDIR}$(HELPER_PATH)/afl-gcc-rt.o
@for i in afl-llvm-dict2file.so afl-llvm-lto-instrumentlist.so afl-llvm-pass.so cmplog-instructions-pass.so cmplog-routines-pass.so cmplog-switches-pass.so compare-transform-pass.so libcompcov.so libdislocator.so libnyx.so libqasan.so libtokencap.so SanitizerCoverageLTO.so SanitizerCoveragePCGUARD.so split-compares-pass.so split-switches-pass.so; do echo rm -fv $${DESTDIR}$(HELPER_PATH)/$${i}; done
@for i in afl-llvm-dict2file.so afl-llvm-lto-instrumentlist.so afl-llvm-pass.so cmplog-instructions-pass.so cmplog-routines-pass.so cmplog-switches-pass.so compare-transform-pass.so libcompcov.so libdislocator.so libnyx.so libqasan.so libtokencap.so SanitizerCoverageLTO.so SanitizerCoveragePCGUARD.so split-compares-pass.so split-switches-pass.so injection-pass.so; do echo rm -fv $${DESTDIR}$(HELPER_PATH)/$${i}; done
install -m 755 $(PROGS) $(SH_PROGS) $${DESTDIR}$(BIN_PATH)
@if [ -f afl-qemu-trace ]; then install -m 755 afl-qemu-trace $${DESTDIR}$(BIN_PATH); fi
@if [ -f utils/plot_ui/afl-plot-ui ]; then install -m 755 utils/plot_ui/afl-plot-ui $${DESTDIR}$(BIN_PATH); fi
@ -813,11 +813,12 @@ endif
install -m 644 docs/*.md $${DESTDIR}$(DOC_PATH)
cp -r testcases/ $${DESTDIR}$(MISC_PATH)
cp -r dictionaries/ $${DESTDIR}$(MISC_PATH)
cp injections.dic $${DESTDIR}$(MISC_PATH)
.PHONY: uninstall
uninstall:
-cd $${DESTDIR}$(BIN_PATH) && rm -f $(PROGS) $(SH_PROGS) afl-cs-proxy afl-qemu-trace afl-plot-ui afl-fuzz-document afl-network-server afl-g* afl-plot.sh afl-as afl-ld-lto afl-c* afl-lto*
-cd $${DESTDIR}$(HELPER_PATH) && rm -f afl-g*.*o afl-llvm-*.*o afl-compiler-*.*o libdislocator.so libtokencap.so libcompcov.so libqasan.so afl-frida-trace.so libnyx.so socketfuzz*.so argvfuzz*.so libAFLDriver.a libAFLQemuDriver.a as afl-as SanitizerCoverage*.so compare-transform-pass.so cmplog-*-pass.so split-*-pass.so dynamic_list.txt
-cd $${DESTDIR}$(BIN_PATH) && rm -f $(PROGS) $(SH_PROGS) afl-cs-proxy afl-qemu-trace afl-plot-ui afl-fuzz-document afl-network-client afl-network-server afl-g* afl-plot.sh afl-as afl-ld-lto afl-c* afl-lto*
-cd $${DESTDIR}$(HELPER_PATH) && rm -f afl-g*.*o afl-llvm-*.*o afl-compiler-*.*o libdislocator.so libtokencap.so libcompcov.so libqasan.so afl-frida-trace.so libnyx.so socketfuzz*.so argvfuzz*.so libAFLDriver.a libAFLQemuDriver.a as afl-as SanitizerCoverage*.so compare-transform-pass.so cmplog-*-pass.so split-*-pass.so dynamic_list.txt injections.dic
-rm -rf $${DESTDIR}$(MISC_PATH)/testcases $${DESTDIR}$(MISC_PATH)/dictionaries
-sh -c "ls docs/*.md | sed 's|^docs/|$${DESTDIR}$(DOC_PATH)/|' | xargs rm -f"
-cd $${DESTDIR}$(MAN_PATH) && rm -f $(MANPAGES)

11
GNUmakefile.llvm
View File

@ -51,7 +51,7 @@ LLVM_TOO_OLD = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^[1-9]
LLVM_NEW_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[0-9]' && echo 1 || echo 0 )
LLVM_NEWER_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[6-9]' && echo 1 || echo 0 )
LLVM_13_OK = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[3-9]' && echo 1 || echo 0 )
LLVM_HAVE_LTO = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[1-9]' && echo 1 || echo 0 )
LLVM_HAVE_LTO = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[2-9]' && echo 1 || echo 0 )
LLVM_BINDIR = $(shell $(LLVM_CONFIG) --bindir 2>/dev/null)
LLVM_LIBDIR = $(shell $(LLVM_CONFIG) --libdir 2>/dev/null)
LLVM_STDCXX = gnu++11
@ -95,12 +95,12 @@ ifeq "$(LLVM_NEWER_API)" "1"
endif
ifeq "$(LLVM_HAVE_LTO)" "1"
$(info [+] llvm_mode detected llvm 11+, enabling afl-lto LTO implementation)
$(info [+] llvm_mode detected llvm 12+, enabling afl-lto LTO implementation)
LLVM_LTO = 1
endif
ifeq "$(LLVM_LTO)" "0"
$(info [+] llvm_mode detected llvm < 11, afl-lto LTO will not be build.)
$(info [+] llvm_mode detected llvm < 12, afl-lto LTO will not be build.)
endif
ifeq "$(LLVM_APPLE_XCODE)" "1"
@ -341,7 +341,7 @@ ifeq "$(TEST_MMAP)" "1"
endif
PROGS_ALWAYS = ./afl-cc ./afl-compiler-rt.o ./afl-compiler-rt-32.o ./afl-compiler-rt-64.o
PROGS = $(PROGS_ALWAYS) ./afl-llvm-pass.so ./SanitizerCoveragePCGUARD.so ./split-compares-pass.so ./split-switches-pass.so ./cmplog-routines-pass.so ./cmplog-instructions-pass.so ./cmplog-switches-pass.so ./afl-llvm-dict2file.so ./compare-transform-pass.so ./afl-ld-lto ./afl-llvm-lto-instrumentlist.so ./SanitizerCoverageLTO.so
PROGS = $(PROGS_ALWAYS) ./afl-llvm-pass.so ./SanitizerCoveragePCGUARD.so ./split-compares-pass.so ./split-switches-pass.so ./cmplog-routines-pass.so ./cmplog-instructions-pass.so ./cmplog-switches-pass.so ./afl-llvm-dict2file.so ./compare-transform-pass.so ./afl-ld-lto ./afl-llvm-lto-instrumentlist.so ./SanitizerCoverageLTO.so ./injection-pass.so
# If prerequisites are not given, warn, do not build anything, and exit with code 0
ifeq "$(LLVMVER)" ""
@ -469,6 +469,9 @@ endif
afl-llvm-dict2file.so: instrumentation/afl-llvm-dict2file.so.cc instrumentation/afl-llvm-common.o | test_deps
$(CXX) $(CLANG_CPPFL) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
./injection-pass.so: instrumentation/injection-pass.cc instrumentation/afl-llvm-common.o | test_deps
$(CXX) $(CLANG_CPPFL) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
.PHONY: document
document:
$(CLANG_BIN) -D_AFL_DOCUMENT_MUTATIONS $(CFLAGS_SAFE) $(CPPFLAGS) $(CLANG_CFL) -O3 -Wno-unused-result -fPIC -c instrumentation/afl-compiler-rt.o.c -o ./afl-compiler-rt.o

4
README.md
View File

@ -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: [4.08c](https://github.com/AFLplusplus/AFLplusplus/releases)
Release version: [4.09c](https://github.com/AFLplusplus/AFLplusplus/releases)
GitHub version: 4.09a
GitHub version: 4.10a
Repository:
[https://github.com/AFLplusplus/AFLplusplus](https://github.com/AFLplusplus/AFLplusplus)

11
TODO.md
View File

@ -7,10 +7,21 @@
- 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
- support persistent and deferred fork server in afl-showmap?
- better autodetection of shifting runtime timeout values

38
afl-cmin
View File

@ -1,11 +1,15 @@
#!/usr/bin/env sh
SYS=$(uname -s)
test "$SYS" = "Darwin" && {
echo Error: afl-cmin does not work on Apple currently. please use afl-cmin.bash instead.
exit 1
}
export AFL_QUIET=1
export ASAN_OPTIONS=detect_leaks=0
THISPATH=`dirname ${0}`
export PATH="${THISPATH}:$PATH"
awk -f - -- ${@+"$@"} <<'EOF'
#!/usr/bin/awk -f
# awk script to minimize a test corpus of input files
#
# based on afl-cmin bash script written by Michal Zalewski
@ -259,22 +263,20 @@ 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"
@ -430,7 +432,7 @@ BEGIN {
} 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"

86
afl-cmin.bash
View File

@ -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.
@ -423,10 +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
@ -434,11 +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
@ -460,19 +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

8
afl-persistent-config
View File

@ -38,6 +38,7 @@ fi
echo
PLATFORM=`uname -s`
ARCH=`uname -m`
# check that we're on Mac
if [[ "$PLATFORM" = "Darwin" ]] ; then
@ -87,6 +88,13 @@ if [[ "$PLATFORM" = "Darwin" ]] ; then
</plist>
EOF
if [[ "$ARCH" = "x86_64" ]]; then
echo "Disabling ASLR system wide"
nvram boot-args="no_aslr=1"
else
echo NOTICE: on ARM64 we do not know currently how to disable system wide ASLR, please report if you know how.
fi
echo
echo "Reboot and enjoy your fuzzing"
exit 0

1
afl-system-config
View File

@ -25,6 +25,7 @@ echo "WARNING: this reduces the security of the system!"
echo
if [ '!' "$EUID" = 0 ] && [ '!' `id -u` = 0 ] ; then
echo "Warning: you need to be root to run this!"
sleep 1
# we do not exit as other mechanisms exist that allows to do this than
# being root. let the errors speak for themselves.
fi

4
benchmark/COMPARISON
View File

@ -1,4 +0,0 @@
CPU | Mz | exec/s | afl-*-config |
========================================|======|========|==============|
CPU 12th Gen Intel(R) Core(TM) i7-1270P | 4200 | 12750 | both |
AMD EPYC 7282 16-Core Processor | 3190 | 10060 | both |

9
benchmark/COMPARISON.md Normal file
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@ -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 |

59
benchmark/README.md Normal file
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@ -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).

420
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@ -0,0 +1,420 @@
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4788.77, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr": {"singlecore": {"execs_per_sec": 9845.64, "execs_total": 98545, "fuzzers_used": 1}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4989.281, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"singlecore": {"execs_per_sec": 125682.73, "execs_total": 1257330, "fuzzers_used": 1}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4799.415, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 120293.77, "execs_total": 1203058, "fuzzers_used": 1}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4703.293, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 231429.96, "execs_total": 2314531, "fuzzers_used": 2}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4800.375, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 346759.33, "execs_total": 3468290, "fuzzers_used": 3}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4915.27, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 455340.06, "execs_total": 4554427, "fuzzers_used": 4}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4701.051, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 568405.15, "execs_total": 5685076, "fuzzers_used": 5}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4704.999, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 678030.96, "execs_total": 6781781, "fuzzers_used": 6}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4800.438, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 782585.04, "execs_total": 7827974, "fuzzers_used": 7}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4794.851, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 893618.35, "execs_total": 8938405, "fuzzers_used": 8}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4998.383, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 956026.15, "execs_total": 9562791, "fuzzers_used": 9}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4997.352, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 984942.13, "execs_total": 9853724, "fuzzers_used": 10}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4987.681, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1016758.62, "execs_total": 10172892, "fuzzers_used": 11}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4998.196, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1053087.9, "execs_total": 10536439, "fuzzers_used": 12}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4995.211, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1085797.87, "execs_total": 10865305, "fuzzers_used": 13}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4997.577, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1110640.2, "execs_total": 11114033, "fuzzers_used": 14}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4799.955, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1138984.22, "execs_total": 11397389, "fuzzers_used": 15}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4997.247, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1168943.19, "execs_total": 11699439, "fuzzers_used": 16}}}}
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{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4997.63, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1150156.26, "execs_total": 11509407, "fuzzers_used": 20}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4998.227, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1136873.58, "execs_total": 11377110, "fuzzers_used": 21}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4998.317, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1112404.25, "execs_total": 11134086, "fuzzers_used": 22}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 5000.851, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1143131.72, "execs_total": 11440024, "fuzzers_used": 23}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4998.261, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1143931.38, "execs_total": 11448786, "fuzzers_used": 24}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4997.259, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1102090.61, "execs_total": 11028561, "fuzzers_used": 25}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4998.149, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1116518.7, "execs_total": 11172681, "fuzzers_used": 26}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4801.01, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1099224.19, "execs_total": 11000537, "fuzzers_used": 27}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4998.448, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1114945.37, "execs_total": 11158802, "fuzzers_used": 28}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4997.663, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1110889.91, "execs_total": 11118113, "fuzzers_used": 29}}}}
{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4997.741, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 1058548.28, "execs_total": 10595540, "fuzzers_used": 30}}}}
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{"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}}}}

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#!/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())

42
benchmark/benchmark.sh
View File

@ -1,42 +0,0 @@
#!/bin/sh
test -x ../afl-fuzz -a -x ../afl-cc -a -e ../SanitizerCoveragePCGUARD.so || {
echo Error: you need to compile AFL++ first, we need afl-fuzz, afl-clang-fast and SanitizerCoveragePCGUARD.so built.
exit 1
}
echo Preparing environment
env | grep AFL_ | sed 's/=.*//' | while read e; do
unset $e
done
AFL_PATH=`pwd`/..
export PATH=$AFL_PATH:$PATH
AFL_LLVM_INSTRUMENT=PCGUARD afl-cc -o test-instr ../test-instr.c > afl.log 2>&1 || {
echo Error: afl-cc is unable to compile
exit 1
}
{
mkdir in
dd if=/dev/zero of=in/in.txt bs=10K count=1
} > /dev/null 2>&1
echo Ready, starting benchmark - this will take approx 20-30 seconds ...
AFL_DISABLE_TRIM=1 AFL_NO_UI=1 AFL_TRY_AFFINITY=1 AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES=1 AFL_BENCH_JUST_ONE=1 time afl-fuzz -i in -o out -s 123 -D ./test-instr >> afl.log 2>&1
echo Analysis:
CPUID=$(grep 'try binding to' afl.log | tail -n 1 | sed 's/.*#//' | sed 's/\..*//')
grep 'model name' /proc/cpuinfo | head -n 1 | sed 's/.*:/ CPU:/'
test -n "$CPUID" && grep -E '^processor|^cpu MHz' /proc/cpuinfo | grep -A1 -w "$CPUID" | grep 'cpu MHz' | head -n 1 | sed 's/.*:/ Mhz:/'
test -z "$CPUID" && grep 'cpu MHz' /proc/cpuinfo | head -n 1 | sed 's/.*:/ Mhz:/'
grep execs_per_sec out/default/fuzzer_stats | sed 's/.*:/ execs\/s:/'
echo
echo "Comparison: (note that values can change by 10-15% per run)"
cat COMPARISON
rm -rf in out test-instr afl.log

53
custom_mutators/examples/custom_post_run.c Normal file
View File

@ -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);
}

5
custom_mutators/examples/example.py
View File

@ -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):
# '''

42
docs/Changelog.md
View File

@ -3,15 +3,46 @@
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 ++4.09a (dev)
### Version ++4.10a (dev)
- afl-fuzz:
- default power schedule is now EXPLORE, due a fix in fast schedules
explore is slightly better now.
- fixed minor issues in the mutation engine, thanks to @futhewo for
reporting!
- afl-cc:
- large rewrite by @SonicStark which fixes a few corner cases, thanks!
- LTO mode now requires llvm 12+
- instrumentation:
- LLVM 18 support, thanks to @devnexen!
- Injection (SQL, LDAP, XSS) feature now available, see
`instrumentation/README.injections.md` how to activate/use/expand.
- compcov/LAF-intel:
- floating point splitting bug fix by @hexcoder
- due a bug in LLVM 17 integer splitting is disabled there!
- when splitting floats was selected, integers were always split as well,
fixed to require AFL_LLVM_LAF_SPLIT_COMPARES or _ALL as it should
- qemu_mode:
- plugins are now activated by default and a new module is included that
produces drcov compatible traces for lighthouse/lightkeeper/...
thanks to @JRomainG to submitting!
- updated the custom grammar mutator
- document afl-cmin does not work on macOS
### 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)
- added scale support to CMPLOG (-l S)
- 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
@ -19,13 +50,16 @@
- 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.sh if you want to see how good your fuzzing
- 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

2
docs/INSTALL.md
View File

@ -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
```

4
docs/afl-fuzz_approach.md
View File

@ -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.

11
docs/custom_mutators.md
View File

@ -73,7 +73,7 @@ def init(seed):
def fuzz_count(buf):
return cnt
def splice_optout()
def splice_optout():
pass
def fuzz(buf, add_buf, max_size):
@ -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):
@ -197,7 +198,7 @@ def deinit(): # optional for Python
This method can be used if you want to send data to the target yourself,
e.g. via IPC. This replaces some usage of utils/afl_proxy but requires
that you start the target with afl-fuzz.
Example: [custom_mutators/examples/custom_send.c](custom_mutators/examples/custom_send.c)
Example: [custom_mutators/examples/custom_send.c](../custom_mutators/examples/custom_send.c)
- `queue_new_entry` (optional):
@ -376,4 +377,4 @@ See [example.c](../custom_mutators/examples/example.c) and
- [bruce30262/libprotobuf-mutator_fuzzing_learning](https://github.com/bruce30262/libprotobuf-mutator_fuzzing_learning/tree/master/4_libprotobuf_aflpp_custom_mutator)
- [thebabush/afl-libprotobuf-mutator](https://github.com/thebabush/afl-libprotobuf-mutator)
- [XML Fuzzing@NullCon 2017](https://www.agarri.fr/docs/XML_Fuzzing-NullCon2017-PUBLIC.pdf)
- [A bug detected by AFL + XML-aware mutators](https://bugs.chromium.org/p/chromium/issues/detail?id=930663)
- [A bug detected by AFL + XML-aware mutators](https://bugs.chromium.org/p/chromium/issues/detail?id=930663)

13
docs/env_variables.md
View File

@ -196,6 +196,19 @@ in the specified file.
For more information, see
[instrumentation/README.instrument_list.md](../instrumentation/README.instrument_list.md).
#### INJECTIONS
This feature is able to find simple injection vulnerabilities in insecure
calls to mysql/mariadb/nosql/postgresql/ldap and XSS in libxml2.
- Setting `AFL_LLVM_INJECTIONS_ALL` will enable all injection hooking
- Setting `AFL_LLVM_INJECTIONS_SQL` will enable SQL injection hooking
- Setting `AFL_LLVM_INJECTIONS_LDAP` will enable LDAP injection hooking
- Setting `AFL_LLVM_INJECTIONS_XSS` will enable XSS injection hooking
#### LAF-INTEL
This great feature will split compares into series of single byte comparisons to

8
docs/fuzzing_binary-only_targets.md
View File

@ -94,8 +94,7 @@ For more information, see
In FRIDA mode, you can fuzz binary-only targets as easily as with QEMU mode.
FRIDA mode is most of the times slightly faster than QEMU mode. It is also
newer, lacks COMPCOV, and has the advantage that it works on MacOS (both intel
and M1).
newer, and has the advantage that it works on MacOS (both intel and M1).
To build FRIDA mode:
@ -113,10 +112,6 @@ The mode is approximately 2-5x slower than compile-time instrumentation, and is
less conducive to parallelization. But for binary-only fuzzing, it gives a huge
speed improvement if it is possible to use.
If you want to fuzz a binary-only library, then you can fuzz it with frida-gum
via frida_mode/. You will have to write a harness to call the target function in
the library, use afl-frida.c as a template.
You can also perform remote fuzzing with frida, e.g., if you want to fuzz on
iPhone or Android devices, for this you can use
[https://github.com/ttdennis/fpicker/](https://github.com/ttdennis/fpicker/) as
@ -302,7 +297,6 @@ some are very hard to set up...
* S2E: [https://github.com/S2E](https://github.com/S2E)
* TinyInst:
[https://github.com/googleprojectzero/TinyInst](https://github.com/googleprojectzero/TinyInst)
(Mac/Windows only)
* ... please send me any missing that are good
## Closing words

5
docs/tutorials.md
View File

@ -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)

12
frida_mode/src/main.c
View File

@ -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);
@ -166,7 +166,7 @@ static void afl_print_env(void) {
if (fd < 0) {
FWARNF("Failed to open /proc/self/cmdline, errno: (%d)", errno);
FWARNF("Failed to open /proc/self/environ, errno: (%d)", errno);
return;
}
@ -174,7 +174,7 @@ static void afl_print_env(void) {
ssize_t bytes_read = read(fd, buffer, PROC_MAX - 1);
if (bytes_read < 0) {
FFATAL("Failed to read /proc/self/cmdline, errno: (%d)", errno);
FFATAL("Failed to read /proc/self/environ, errno: (%d)", errno);
}

2
frida_mode/src/ranges.c
View File

@ -653,7 +653,7 @@ void ranges_init(void) {
/*
* After step 4 we have the total ranges to be instrumented, we now subtract
* that either from the original ranges of the modules or from the whole
* memory if AFL_INST_NO_DYNAMIC_LOAD to configure the stalker.
* memory if AFL_FRIDA_INST_NO_DYNAMIC_LOAD to configure the stalker.
*/
if (ranges_inst_dynamic_load) {

12
include/afl-fuzz.h
View File

@ -345,6 +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
};
@ -1020,6 +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).
@ -1075,6 +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);

37
include/afl-mutations.h
View File

@ -1082,6 +1082,7 @@ u32 mutation_strategy_exploration_binary[MUT_STRATEGY_ARRAY_SIZE] = {
MUT_CLONE_COPY,
MUT_CLONE_COPY,
MUT_CLONE_COPY,
MUT_CLONE_COPY,
MUT_CLONE_FIXED,
MUT_CLONE_FIXED,
MUT_CLONE_FIXED,
@ -1854,7 +1855,7 @@ 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;
@ -2456,14 +2457,14 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps,
}
char buf[20];
snprintf(buf, sizeof(buf), "%" PRId64, 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 {
@ -2473,7 +2474,7 @@ 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);
@ -2490,12 +2491,13 @@ inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps,
case MUT_INSERTASCIINUM: {
u32 len = 1 + rand_below(afl, 8);
u32 ins_len = 1 + rand_below(afl, 8);
u32 pos = rand_below(afl, len);
/* Insert ascii number. */
if (unlikely(len < pos + len)) {
if (unlikely(len < pos + ins_len)) {
// no retry if we have a small input
if (unlikely(len < 8)) {
break;
@ -2509,9 +2511,22 @@ 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);
size_t val_len = strlen(numbuf), off;
if (ins_len > val_len) {
ins_len = val_len;
off = 0;
} else {
off = val_len - ins_len;
}
memcpy(buf + pos, numbuf + off, ins_len);
break;

2
include/config.h
View File

@ -26,7 +26,7 @@
/* Version string: */
// c = release, a = volatile github dev, e = experimental branch
#define VERSION "++4.09a"
#define VERSION "++4.10a"
/******************************************************
* *

315
include/envs.h
View File

@ -16,249 +16,104 @@ static char *afl_environment_deprecated[] = {
static char *afl_environment_variables[] = {
"AFL_ALIGNED_ALLOC",
"AFL_ALLOW_TMP",
"AFL_ANALYZE_HEX",
"AFL_AS",
"AFL_AUTORESUME",
"AFL_AS_FORCE_INSTRUMENT",
"AFL_BENCH_JUST_ONE",
"AFL_BENCH_UNTIL_CRASH",
"AFL_CAL_FAST",
"AFL_CC",
"AFL_CC_COMPILER",
"AFL_CMIN_ALLOW_ANY",
"AFL_CMIN_CRASHES_ONLY",
"AFL_CMPLOG_ONLY_NEW",
"AFL_CODE_END",
"AFL_CODE_START",
"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",
"AFL_CUSTOM_INFO_PROGRAM_ARGV",
"AFL_CUSTOM_INFO_PROGRAM_INPUT",
"AFL_CUSTOM_INFO_OUT",
"AFL_CXX",
"AFL_CYCLE_SCHEDULES",
"AFL_DEBUG",
"AFL_DEBUG_CHILD",
"AFL_DEBUG_GDB",
"AFL_DEBUG_UNICORN",
"AFL_DISABLE_TRIM",
"AFL_DISABLE_LLVM_INSTRUMENTATION",
"AFL_DONT_OPTIMIZE",
"AFL_DRIVER_STDERR_DUPLICATE_FILENAME",
"AFL_DUMB_FORKSRV",
"AFL_EARLY_FORKSERVER",
"AFL_ENTRYPOINT",
"AFL_EXIT_WHEN_DONE",
"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",
"AFL_FRIDA_EXCLUDE_RANGES",
"AFL_FRIDA_INST_CACHE_SIZE",
"AFL_FRIDA_INST_COVERAGE_ABSOLUTE",
"AFL_FRIDA_INST_COVERAGE_FILE",
"AFL_FRIDA_INST_DEBUG_FILE",
"AFL_FRIDA_INST_INSN",
"AFL_FRIDA_INST_JIT",
"AFL_FRIDA_INST_NO_CACHE",
"AFL_FRIDA_INST_NO_DYNAMIC_LOAD",
"AFL_FRIDA_INST_NO_OPTIMIZE",
"AFL_FRIDA_INST_NO_PREFETCH",
"AFL_FRIDA_INST_NO_PREFETCH_BACKPATCH",
"AFL_ALIGNED_ALLOC", "AFL_ALLOW_TMP", "AFL_ANALYZE_HEX", "AFL_AS",
"AFL_AUTORESUME", "AFL_AS_FORCE_INSTRUMENT", "AFL_BENCH_JUST_ONE",
"AFL_BENCH_UNTIL_CRASH", "AFL_CAL_FAST", "AFL_CC", "AFL_CC_COMPILER",
"AFL_CMIN_ALLOW_ANY", "AFL_CMIN_CRASHES_ONLY", "AFL_CMPLOG_ONLY_NEW",
"AFL_CODE_END", "AFL_CODE_START", "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",
"AFL_CUSTOM_INFO_PROGRAM_ARGV", "AFL_CUSTOM_INFO_PROGRAM_INPUT",
"AFL_CUSTOM_INFO_OUT", "AFL_CXX", "AFL_CYCLE_SCHEDULES", "AFL_DEBUG",
"AFL_DEBUG_CHILD", "AFL_DEBUG_GDB", "AFL_DEBUG_UNICORN", "AFL_DISABLE_TRIM",
"AFL_DISABLE_LLVM_INSTRUMENTATION", "AFL_DONT_OPTIMIZE",
"AFL_DRIVER_STDERR_DUPLICATE_FILENAME", "AFL_DUMB_FORKSRV",
"AFL_EARLY_FORKSERVER", "AFL_ENTRYPOINT", "AFL_EXIT_WHEN_DONE",
"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", "AFL_FRIDA_EXCLUDE_RANGES",
"AFL_FRIDA_INST_CACHE_SIZE", "AFL_FRIDA_INST_COVERAGE_ABSOLUTE",
"AFL_FRIDA_INST_COVERAGE_FILE", "AFL_FRIDA_INST_DEBUG_FILE",
"AFL_FRIDA_INST_INSN", "AFL_FRIDA_INST_JIT", "AFL_FRIDA_INST_NO_CACHE",
"AFL_FRIDA_INST_NO_DYNAMIC_LOAD", "AFL_FRIDA_INST_NO_OPTIMIZE",
"AFL_FRIDA_INST_NO_PREFETCH", "AFL_FRIDA_INST_NO_PREFETCH_BACKPATCH",
"AFL_FRIDA_INST_NO_SUPPRESS"
"AFL_FRIDA_INST_RANGES",
"AFL_FRIDA_INST_REGS_FILE",
"AFL_FRIDA_INST_SEED",
"AFL_FRIDA_INST_TRACE",
"AFL_FRIDA_INST_TRACE_UNIQUE",
"AFL_FRIDA_INST_UNSTABLE_COVERAGE_FILE",
"AFL_FRIDA_JS_SCRIPT",
"AFL_FRIDA_OUTPUT_STDOUT",
"AFL_FRIDA_OUTPUT_STDERR",
"AFL_FRIDA_PERSISTENT_ADDR",
"AFL_FRIDA_PERSISTENT_CNT",
"AFL_FRIDA_PERSISTENT_DEBUG",
"AFL_FRIDA_PERSISTENT_HOOK",
"AFL_FRIDA_PERSISTENT_RET",
"AFL_FRIDA_STALKER_ADJACENT_BLOCKS",
"AFL_FRIDA_STALKER_IC_ENTRIES",
"AFL_FRIDA_STALKER_NO_BACKPATCH",
"AFL_FRIDA_STATS_FILE",
"AFL_FRIDA_STATS_INTERVAL",
"AFL_FRIDA_TRACEABLE",
"AFL_FRIDA_INST_REGS_FILE", "AFL_FRIDA_INST_SEED", "AFL_FRIDA_INST_TRACE",
"AFL_FRIDA_INST_TRACE_UNIQUE", "AFL_FRIDA_INST_UNSTABLE_COVERAGE_FILE",
"AFL_FRIDA_JS_SCRIPT", "AFL_FRIDA_OUTPUT_STDOUT", "AFL_FRIDA_OUTPUT_STDERR",
"AFL_FRIDA_PERSISTENT_ADDR", "AFL_FRIDA_PERSISTENT_CNT",
"AFL_FRIDA_PERSISTENT_DEBUG", "AFL_FRIDA_PERSISTENT_HOOK",
"AFL_FRIDA_PERSISTENT_RET", "AFL_FRIDA_STALKER_ADJACENT_BLOCKS",
"AFL_FRIDA_STALKER_IC_ENTRIES", "AFL_FRIDA_STALKER_NO_BACKPATCH",
"AFL_FRIDA_STATS_FILE", "AFL_FRIDA_STATS_INTERVAL", "AFL_FRIDA_TRACEABLE",
"AFL_FRIDA_VERBOSE",
"AFL_FUZZER_ARGS", // oss-fuzz
"AFL_FUZZER_STATS_UPDATE_INTERVAL",
"AFL_GDB",
"AFL_GCC_ALLOWLIST",
"AFL_GCC_DENYLIST",
"AFL_GCC_BLOCKLIST",
"AFL_GCC_INSTRUMENT_FILE",
"AFL_GCC_OUT_OF_LINE",
"AFL_GCC_SKIP_NEVERZERO",
"AFL_GCJ",
"AFL_HANG_TMOUT",
"AFL_FORKSRV_INIT_TMOUT",
"AFL_HARDEN",
"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",
"AFL_INPUT_LEN_MIN",
"AFL_INPUT_LEN_MAX",
"AFL_INST_LIBS",
"AFL_INST_RATIO",
"AFL_KEEP_TIMEOUTS",
"AFL_KILL_SIGNAL",
"AFL_FORK_SERVER_KILL_SIGNAL",
"AFL_KEEP_TRACES",
"AFL_KEEP_ASSEMBLY",
"AFL_LD_HARD_FAIL",
"AFL_LD_LIMIT_MB",
"AFL_LD_NO_CALLOC_OVER",
"AFL_LD_PASSTHROUGH",
"AFL_REAL_LD",
"AFL_LD_PRELOAD",
"AFL_LD_VERBOSE",
"AFL_LLVM_ALLOWLIST",
"AFL_LLVM_DENYLIST",
"AFL_LLVM_BLOCKLIST",
"AFL_CMPLOG",
"AFL_LLVM_CMPLOG",
"AFL_GCC_CMPLOG",
"AFL_LLVM_INSTRIM",
"AFL_LLVM_CALLER",
"AFL_LLVM_CTX",
"AFL_LLVM_CTX_K",
"AFL_LLVM_DICT2FILE",
"AFL_LLVM_DICT2FILE_NO_MAIN",
"AFL_LLVM_DOCUMENT_IDS",
"AFL_LLVM_INSTRIM_LOOPHEAD",
"AFL_LLVM_INSTRUMENT",
"AFL_LLVM_LTO_AUTODICTIONARY",
"AFL_LLVM_AUTODICTIONARY",
"AFL_FUZZER_STATS_UPDATE_INTERVAL", "AFL_GDB", "AFL_GCC_ALLOWLIST",
"AFL_GCC_DENYLIST", "AFL_GCC_BLOCKLIST", "AFL_GCC_INSTRUMENT_FILE",
"AFL_GCC_OUT_OF_LINE", "AFL_GCC_SKIP_NEVERZERO", "AFL_GCJ",
"AFL_HANG_TMOUT", "AFL_FORKSRV_INIT_TMOUT", "AFL_HARDEN",
"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",
"AFL_INPUT_LEN_MIN", "AFL_INPUT_LEN_MAX", "AFL_INST_LIBS", "AFL_INST_RATIO",
"AFL_KEEP_TIMEOUTS", "AFL_KILL_SIGNAL", "AFL_FORK_SERVER_KILL_SIGNAL",
"AFL_KEEP_TRACES", "AFL_KEEP_ASSEMBLY", "AFL_LD_HARD_FAIL",
"AFL_LD_LIMIT_MB", "AFL_LD_NO_CALLOC_OVER", "AFL_LD_PASSTHROUGH",
"AFL_REAL_LD", "AFL_LD_PRELOAD", "AFL_LD_VERBOSE", "AFL_LLVM_ALLOWLIST",
"AFL_LLVM_DENYLIST", "AFL_LLVM_BLOCKLIST", "AFL_CMPLOG", "AFL_LLVM_CMPLOG",
"AFL_GCC_CMPLOG", "AFL_LLVM_INSTRIM", "AFL_LLVM_CALLER", "AFL_LLVM_CTX",
"AFL_LLVM_CTX_K", "AFL_LLVM_DICT2FILE", "AFL_LLVM_DICT2FILE_NO_MAIN",
"AFL_LLVM_DOCUMENT_IDS", "AFL_LLVM_INSTRIM_LOOPHEAD", "AFL_LLVM_INSTRUMENT",
"AFL_LLVM_LTO_AUTODICTIONARY", "AFL_LLVM_AUTODICTIONARY",
"AFL_LLVM_SKIPSINGLEBLOCK",
"AFL_LLVM_INSTRIM_SKIPSINGLEBLOCK",
"AFL_LLVM_LAF_SPLIT_COMPARES",
"AFL_LLVM_LAF_SPLIT_COMPARES_BITW",
"AFL_LLVM_LAF_SPLIT_FLOATS",
"AFL_LLVM_LAF_SPLIT_SWITCHES",
"AFL_LLVM_LAF_ALL",
"AFL_LLVM_LAF_TRANSFORM_COMPARES",
"AFL_LLVM_MAP_ADDR",
"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",
"AFL_LLVM_SKIP_NEVERZERO",
"AFL_NO_AFFINITY",
"AFL_TRY_AFFINITY",
"AFL_LLVM_LTO_DONTWRITEID",
// Marker: ADD_TO_INJECTIONS
"AFL_LLVM_INJECTIONS_ALL", "AFL_LLVM_INJECTIONS_SQL",
"AFL_LLVM_INJECTIONS_LDAP", "AFL_LLVM_INJECTIONS_XSS",
"AFL_LLVM_INSTRIM_SKIPSINGLEBLOCK", "AFL_LLVM_LAF_SPLIT_COMPARES",
"AFL_LLVM_LAF_SPLIT_COMPARES_BITW", "AFL_LLVM_LAF_SPLIT_FLOATS",
"AFL_LLVM_LAF_SPLIT_SWITCHES", "AFL_LLVM_LAF_ALL",
"AFL_LLVM_LAF_TRANSFORM_COMPARES", "AFL_LLVM_MAP_ADDR",
"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", "AFL_LLVM_SKIP_NEVERZERO", "AFL_NO_AFFINITY",
"AFL_TRY_AFFINITY", "AFL_LLVM_LTO_DONTWRITEID",
"AFL_LLVM_LTO_SKIPINIT"
"AFL_LLVM_LTO_STARTID",
"AFL_NO_ARITH",
"AFL_NO_AUTODICT",
"AFL_NO_BUILTIN",
"AFL_FUZZER_LOOPCOUNT", "AFL_NO_ARITH", "AFL_NO_AUTODICT", "AFL_NO_BUILTIN",
#if defined USE_COLOR && !defined ALWAYS_COLORED
"AFL_NO_COLOR",
"AFL_NO_COLOUR",
"AFL_NO_COLOR", "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",
"AFL_NO_PYTHON",
"AFL_NO_STARTUP_CALIBRATION",
"AFL_NO_WARN_INSTABILITY",
"AFL_UNTRACER_FILE",
"AFL_LLVM_USE_TRACE_PC",
"AFL_MAP_SIZE",
"AFL_MAPSIZE",
"AFL_NO_CRASH_README", "AFL_NO_FORKSRV", "AFL_NO_UI", "AFL_NO_PYTHON",
"AFL_NO_STARTUP_CALIBRATION", "AFL_NO_WARN_INSTABILITY",
"AFL_UNTRACER_FILE", "AFL_LLVM_USE_TRACE_PC", "AFL_MAP_SIZE", "AFL_MAPSIZE",
"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",
"AFL_PERSISTENT_RECORD",
"AFL_POST_PROCESS_KEEP_ORIGINAL",
"AFL_PRELOAD",
"AFL_TARGET_ENV",
"AFL_PYTHON_MODULE",
"AFL_QEMU_CUSTOM_BIN",
"AFL_QEMU_COMPCOV",
"AFL_QEMU_COMPCOV_DEBUG",
"AFL_QEMU_DEBUG_MAPS",
"AFL_QEMU_DISABLE_CACHE",
"AFL_QEMU_DRIVER_NO_HOOK",
"AFL_QEMU_FORCE_DFL",
"AFL_QEMU_PERSISTENT_ADDR",
"AFL_QEMU_PERSISTENT_CNT",
"AFL_QEMU_PERSISTENT_GPR",
"AFL_QEMU_PERSISTENT_HOOK",
"AFL_QEMU_PERSISTENT_MEM",
"AFL_QEMU_PERSISTENT_RET",
"AFL_QEMU_PERSISTENT_RETADDR_OFFSET",
"AFL_QEMU_PERSISTENT_EXITS",
"AFL_QEMU_INST_RANGES",
"AFL_QEMU_EXCLUDE_RANGES",
"AFL_QEMU_SNAPSHOT",
"AFL_QEMU_TRACK_UNSTABLE",
"AFL_QUIET",
"AFL_RANDOM_ALLOC_CANARY",
"AFL_REAL_PATH",
"AFL_SHUFFLE_QUEUE",
"AFL_SKIP_BIN_CHECK",
"AFL_SKIP_CPUFREQ",
"AFL_SKIP_CRASHES",
"AFL_SKIP_OSSFUZZ",
"AFL_STATSD",
"AFL_STATSD_HOST",
"AFL_STATSD_PORT",
"AFL_STATSD_TAGS_FLAVOR",
"AFL_SYNC_TIME",
"AFL_TESTCACHE_SIZE",
"AFL_TESTCACHE_ENTRIES",
"AFL_TMIN_EXACT",
"AFL_TMPDIR",
"AFL_TOKEN_FILE",
"AFL_TRACE_PC",
"AFL_USE_ASAN",
"AFL_USE_MSAN",
"AFL_USE_TRACE_PC",
"AFL_USE_UBSAN",
"AFL_USE_TSAN",
"AFL_USE_CFISAN",
"AFL_USE_LSAN",
"AFL_WINE_PATH",
"AFL_NO_SNAPSHOT",
"AFL_EXPAND_HAVOC_NOW",
"AFL_USE_FASAN",
"AFL_USE_QASAN",
"AFL_PRINT_FILENAMES",
"AFL_PIZZA_MODE",
NULL
"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", "AFL_PERSISTENT_RECORD",
"AFL_POST_PROCESS_KEEP_ORIGINAL", "AFL_PRELOAD", "AFL_TARGET_ENV",
"AFL_PYTHON_MODULE", "AFL_QEMU_CUSTOM_BIN", "AFL_QEMU_COMPCOV",
"AFL_QEMU_COMPCOV_DEBUG", "AFL_QEMU_DEBUG_MAPS", "AFL_QEMU_DISABLE_CACHE",
"AFL_QEMU_DRIVER_NO_HOOK", "AFL_QEMU_FORCE_DFL", "AFL_QEMU_PERSISTENT_ADDR",
"AFL_QEMU_PERSISTENT_CNT", "AFL_QEMU_PERSISTENT_GPR",
"AFL_QEMU_PERSISTENT_HOOK", "AFL_QEMU_PERSISTENT_MEM",
"AFL_QEMU_PERSISTENT_RET", "AFL_QEMU_PERSISTENT_RETADDR_OFFSET",
"AFL_QEMU_PERSISTENT_EXITS", "AFL_QEMU_INST_RANGES",
"AFL_QEMU_EXCLUDE_RANGES", "AFL_QEMU_SNAPSHOT", "AFL_QEMU_TRACK_UNSTABLE",
"AFL_QUIET", "AFL_RANDOM_ALLOC_CANARY", "AFL_REAL_PATH",
"AFL_SHUFFLE_QUEUE", "AFL_SKIP_BIN_CHECK", "AFL_SKIP_CPUFREQ",
"AFL_SKIP_CRASHES", "AFL_SKIP_OSSFUZZ", "AFL_STATSD", "AFL_STATSD_HOST",
"AFL_STATSD_PORT", "AFL_STATSD_TAGS_FLAVOR", "AFL_SYNC_TIME",
"AFL_TESTCACHE_SIZE", "AFL_TESTCACHE_ENTRIES", "AFL_TMIN_EXACT",
"AFL_TMPDIR", "AFL_TOKEN_FILE", "AFL_TRACE_PC", "AFL_USE_ASAN",
"AFL_USE_MSAN", "AFL_USE_TRACE_PC", "AFL_USE_UBSAN", "AFL_USE_TSAN",
"AFL_USE_CFISAN", "AFL_USE_LSAN", "AFL_WINE_PATH", "AFL_NO_SNAPSHOT",
"AFL_EXPAND_HAVOC_NOW", "AFL_USE_FASAN", "AFL_USE_QASAN",
"AFL_PRINT_FILENAMES", "AFL_PIZZA_MODE", NULL
};

30
include/xxhash.h
View File

@ -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

7
injections.dic Normal file
View File

@ -0,0 +1,7 @@
"1'\" OR \"1\"=\"1"
"1\"' OR '1'='1"
"'\"><FUZZ"
"*)(FUZZ=*))(|"
"\";FUZZ;\""
"';FUZZ;'"
"$(FUZZ)"

48
instrumentation/README.injections.md Normal file
View File

@ -0,0 +1,48 @@
# Injection fuzzing
Coverage guided fuzzing so far is only able to detect crashes, so usually
memory corruption issues, or - if implemented by hand in the harness -
invariants.
This is a proof-of-concept implementation to additionally hunt for injection
vulnerabilities.
It works by instrumenting calls to specific functions and parsing the
query parameter for a specific unescaped dictionary string, and if detected,
crashes the target.
This has a very low false positive rate.
But obviously this can only find injection vulnerailities that are suspectible
to this specific (but most common) issue. Hence in a rare kind of injection
vulnerability this won't find the bug - and be a false negative.
But this can be tweaked by the user - see the HOW TO MODIFY section below.
## How to use
Set one or more of the following environment variables for **compiling**
the target and - *this is important* - when **fuzzing** the target:
- `AFL_LLVM_INJECTIONS_SQL`
- `AFL_LLVM_INJECTIONS_LDAP`
- `AFL_LLVM_INJECTIONS_XSS`
Alternatively you can set `AFL_LLVM_INJECTIONS_ALL` to enable all.
## How to modify
If you want to add more fuctions to check for e.g. SQL injections:
Add these to `instrumentation/injection-pass.cc` and recompile.
If you want to test for more injection inputs:
Add the dictionary tokens to `src/afl-fuzz.c` and the check for them to
`instrumentation/afl-compiler-rt.o.c`.
If you want to add new injection targets:
You will have to edit all three files.
Just search for:
```
// Marker: ADD_TO_INJECTIONS
```
in the files to see where this needs to be added.
**NOTE:** pull requests to improve this feature are highly welcome :-)

54
instrumentation/SanitizerCoverageLTO.so.cc
View File

@ -692,33 +692,37 @@ bool ModuleSanitizerCoverageLTO::instrumentModule(
* prototype */
FunctionType *FT = Callee->getFunctionType();
isStrcmp &= FT->getNumParams() == 2 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext());
isStrcasecmp &= FT->getNumParams() == 2 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext());
isStrcmp &=
FT->getNumParams() == 2 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isStrcasecmp &=
FT->getNumParams() == 2 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isMemcmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy() &&
FT->getParamType(2)->isIntegerTy();
isStrncmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext()) &&
FT->getParamType(2)->isIntegerTy();
isStrncasecmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext()) &&
FT->getParamType(2)->isIntegerTy();
isStrncmp &=
FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
FT->getParamType(2)->isIntegerTy();
isStrncasecmp &=
FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
FT->getParamType(2)->isIntegerTy();
isStdString &= FT->getNumParams() >= 2 &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy();
@ -1241,7 +1245,11 @@ void ModuleSanitizerCoverageLTO::instrumentFunction(
if (F.empty()) return;
if (F.getName().find(".module_ctor") != std::string::npos)
return; // Should not instrument sanitizer init functions.
#if LLVM_VERSION_MAJOR >= 18
if (F.getName().starts_with("__sanitizer_"))
#else
if (F.getName().startswith("__sanitizer_"))
#endif
return; // Don't instrument __sanitizer_* callbacks.
// Don't touch available_externally functions, their actual body is elsewhere.
if (F.getLinkage() == GlobalValue::AvailableExternallyLinkage) return;
@ -1493,7 +1501,7 @@ GlobalVariable *ModuleSanitizerCoverageLTO::CreateFunctionLocalArrayInSection(
Array->setComdat(Comdat);
#endif
Array->setSection(getSectionName(Section));
Array->setAlignment(Align(DL->getTypeStoreSize(Ty).getFixedSize()));
Array->setAlignment(Align(DL->getTypeStoreSize(Ty).getFixedValue()));
GlobalsToAppendToUsed.push_back(Array);
GlobalsToAppendToCompilerUsed.push_back(Array);
MDNode *MD = MDNode::get(F.getContext(), ValueAsMetadata::get(&F));

12
instrumentation/SanitizerCoveragePCGUARD.so.cc
View File

@ -572,7 +572,11 @@ void ModuleSanitizerCoverageAFL::instrumentFunction(
if (!isInInstrumentList(&F, FMNAME)) return;
if (F.getName().find(".module_ctor") != std::string::npos)
return; // Should not instrument sanitizer init functions.
#if LLVM_VERSION_MAJOR >= 18
if (F.getName().starts_with("__sanitizer_"))
#else
if (F.getName().startswith("__sanitizer_"))
#endif
return; // Don't instrument __sanitizer_* callbacks.
// Don't touch available_externally functions, their actual body is elewhere.
if (F.getLinkage() == GlobalValue::AvailableExternallyLinkage) return;
@ -623,6 +627,13 @@ void ModuleSanitizerCoverageAFL::instrumentFunction(
}
if (debug) {
fprintf(stderr, "SanitizerCoveragePCGUARD: instrumenting %s in %s\n",
F.getName().str().c_str(), F.getParent()->getName().str().c_str());
}
InjectCoverage(F, BlocksToInstrument, IsLeafFunc);
// InjectTraceForCmp(F, CmpTraceTargets);
// InjectTraceForSwitch(F, SwitchTraceTargets);
@ -948,6 +959,7 @@ bool ModuleSanitizerCoverageAFL::InjectCoverage(
#endif
{
// fprintf(stderr, "UNHANDLED: %u\n", t->getTypeID());
unhandled++;
continue;

73
instrumentation/afl-compiler-rt.o.c
View File

@ -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
@ -92,6 +92,8 @@ extern ssize_t _kern_write(int fd, off_t pos, const void *buffer,
size_t bufferSize);
#endif // HAIKU
char *strcasestr(const char *haystack, const char *needle);
static u8 __afl_area_initial[MAP_INITIAL_SIZE];
static u8 *__afl_area_ptr_dummy = __afl_area_initial;
static u8 *__afl_area_ptr_backup = __afl_area_initial;
@ -183,7 +185,7 @@ static u8 _is_sancov;
/* Debug? */
static u32 __afl_debug;
/*static*/ u32 __afl_debug;
/* Already initialized markers */
@ -1923,6 +1925,10 @@ 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);
@ -1949,6 +1955,8 @@ 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) {
@ -2155,13 +2163,13 @@ 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);
}
@ -2270,11 +2278,13 @@ 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;
@ -2682,5 +2692,52 @@ void __afl_set_persistent_mode(u8 mode) {
}
// Marker: ADD_TO_INJECTIONS
void __afl_injection_sql(u8 *buf) {
if (likely(buf)) {
if (unlikely(strstr((char *)buf, "'\"\"'"))) {
fprintf(stderr, "ALERT: Detected SQL injection in query: %s\n", buf);
abort();
}
}
}
void __afl_injection_ldap(u8 *buf) {
if (likely(buf)) {
if (unlikely(strstr((char *)buf, "*)(1=*))(|"))) {
fprintf(stderr, "ALERT: Detected LDAP injection in query: %s\n", buf);
abort();
}
}
}
void __afl_injection_xss(u8 *buf) {
if (likely(buf)) {
if (unlikely(strstr((char *)buf, "1\"><\""))) {
fprintf(stderr, "ALERT: Detected XSS injection in content: %s\n", buf);
abort();
}
}
}
#undef write_error

12
instrumentation/afl-llvm-common.cc
View File

@ -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
@ -197,7 +201,7 @@ void initInstrumentList() {
if (debug)
DEBUGF("loaded allowlist with %zu file and %zu function entries\n",
allowListFiles.size(), allowListFunctions.size());
allowListFiles.size() / 4, allowListFunctions.size() / 4);
}
@ -272,7 +276,7 @@ void initInstrumentList() {
if (debug)
DEBUGF("loaded denylist with %zu file and %zu function entries\n",
denyListFiles.size(), denyListFunctions.size());
denyListFiles.size() / 4, denyListFunctions.size() / 4);
}

33
instrumentation/afl-llvm-dict2file.so.cc
View File

@ -433,32 +433,35 @@ bool AFLdict2filePass::runOnModule(Module &M) {
isStrstr &=
FT->getNumParams() == 2 &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isStrcmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isStrcasecmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isMemcmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy() &&
FT->getParamType(2)->isIntegerTy();
isStrncmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext()) &&
FT->getParamType(2)->isIntegerTy();
isStrncasecmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext()) &&
FT->getParamType(2)->isIntegerTy();
isStrncmp &=
FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
FT->getParamType(2)->isIntegerTy();
isStrncasecmp &=
FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
FT->getParamType(2)->isIntegerTy();
isStdString &= FT->getNumParams() >= 2 &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy();

40
instrumentation/cmplog-instructions-pass.cc
View File

@ -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);

17
instrumentation/cmplog-routines-pass.cc
View File

@ -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 {
@ -385,7 +385,8 @@ bool CmpLogRoutines::hookRtns(Module &M) {
isStrcmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
bool isStrncmp = (!FuncName.compare("strncmp") ||
!FuncName.compare("xmlStrncmp") ||
@ -398,12 +399,12 @@ bool CmpLogRoutines::hookRtns(Module &M) {
!FuncName.compare("g_ascii_strncasecmp") ||
!FuncName.compare("Curl_strncasecompare") ||
!FuncName.compare("g_strncasecmp"));
isStrncmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext()) &&
FT->getParamType(2)->isIntegerTy();
isStrncmp &=
FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
FT->getParamType(2)->isIntegerTy();
bool isGccStdStringStdString =
Callee->getName().find("__is_charIT_EE7__value") !=

2
instrumentation/cmplog-switches-pass.cc
View File

@ -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 {

30
instrumentation/compare-transform-pass.so.cc
View File

@ -271,28 +271,30 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
isStrcmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isStrcasecmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isMemcmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy() &&
FT->getParamType(2)->isIntegerTy();
isStrncmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext()) &&
FT->getParamType(2)->isIntegerTy();
isStrncasecmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8PtrTy(M.getContext()) &&
FT->getParamType(2)->isIntegerTy();
isStrncmp &=
FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
FT->getParamType(2)->isIntegerTy();
isStrncasecmp &=
FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
FT->getParamType(0) ==
IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
FT->getParamType(2)->isIntegerTy();
if (!isStrcmp && !isMemcmp && !isStrncmp && !isStrcasecmp &&
!isStrncasecmp && !isIntMemcpy)

366
instrumentation/injection-pass.cc Normal file
View File

@ -0,0 +1,366 @@
/*
american fuzzy lop++ - LLVM Injection instrumentation
--------------------------------------------------
Written by Marc Heuse <mh@mh-sec.de>
Copyright 2015, 2016 Google Inc. All rights reserved.
Copyright 2019-2023 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
https://www.apache.org/licenses/LICENSE-2.0
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <list>
#include <string>
#include <fstream>
#include <sys/time.h>
#include "llvm/Config/llvm-config.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/IRBuilder.h"
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
#include "llvm/Passes/PassPlugin.h"
#include "llvm/Passes/PassBuilder.h"
#include "llvm/IR/PassManager.h"
#else
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
#endif
#include "llvm/IR/Module.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#if LLVM_VERSION_MAJOR < 17
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
#endif
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Pass.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/IRBuilder.h"
#if LLVM_VERSION_MAJOR >= 4 || \
(LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 4)
#include "llvm/IR/Verifier.h"
#include "llvm/IR/DebugInfo.h"
#else
#include "llvm/Analysis/Verifier.h"
#include "llvm/DebugInfo.h"
#define nullptr 0
#endif
#include <set>
#include "afl-llvm-common.h"
using namespace llvm;
namespace {
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
class InjectionRoutines : public PassInfoMixin<InjectionRoutines> {
public:
InjectionRoutines() {
#else
class InjectionRoutines : public ModulePass {
public:
static char ID;
InjectionRoutines() : ModulePass(ID) {
#endif
initInstrumentList();
}
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
#else
bool runOnModule(Module &M) override;
#if LLVM_VERSION_MAJOR >= 4
StringRef getPassName() const override {
#else
const char *getPassName() const override {
#endif
return "Injection routines";
}
#endif
private:
bool hookRtns(Module &M);
bool doSQL = false;
bool doLDAP = false;
bool doXSS = false;
};
} // namespace
#if LLVM_MAJOR >= 11
extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
llvmGetPassPluginInfo() {
return {LLVM_PLUGIN_API_VERSION, "Injectionroutines", "v0.1",
/* lambda to insert our pass into the pass pipeline. */
[](PassBuilder &PB) {
#if LLVM_VERSION_MAJOR <= 13
using OptimizationLevel = typename PassBuilder::OptimizationLevel;
#endif
PB.registerOptimizerLastEPCallback(
[](ModulePassManager &MPM, OptimizationLevel OL) {
MPM.addPass(InjectionRoutines());
});
}};
}
#else
char InjectionRoutines::ID = 0;
#endif
bool InjectionRoutines::hookRtns(Module &M) {
std::vector<CallInst *> calls, llvmStdStd, llvmStdC, gccStdStd, gccStdC,
Memcmp, Strcmp, Strncmp;
LLVMContext &C = M.getContext();
Type *VoidTy = Type::getVoidTy(C);
IntegerType *Int8Ty = IntegerType::getInt8Ty(C);
PointerType *i8PtrTy = PointerType::get(Int8Ty, 0);
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee
#else
Constant *
#endif
c1 = M.getOrInsertFunction("__afl_injection_sql", VoidTy, i8PtrTy
#if LLVM_VERSION_MAJOR < 5
,
NULL
#endif
);
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee sqlfunc = c1;
#else
Function *sqlfunc = cast<Function>(c1);
#endif
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee
#else
Constant *
#endif
c2 = M.getOrInsertFunction("__afl_injection_ldap", VoidTy, i8PtrTy
#if LLVM_VERSION_MAJOR < 5
,
NULL
#endif
);
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee ldapfunc = c2;
#else
Function *ldapfunc = cast<Function>(c2);
#endif
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee
#else
Constant *
#endif
c3 = M.getOrInsertFunction("__afl_injection_xss", VoidTy, i8PtrTy
#if LLVM_VERSION_MAJOR < 5
,
NULL
#endif
);
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee xssfunc = c3;
#else
Function *xssfunc = cast<Function>(c3);
#endif
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee FuncPtr;
#else
Function *FuncPtr;
#endif
/* iterate over all functions, bbs and instruction and add suitable calls */
for (auto &F : M) {
if (!isInInstrumentList(&F, MNAME)) continue;
for (auto &BB : F) {
for (auto &IN : BB) {
CallInst *callInst = nullptr;
if ((callInst = dyn_cast<CallInst>(&IN))) {
Function *Callee = callInst->getCalledFunction();
if (!Callee) continue;
if (callInst->getCallingConv() != llvm::CallingConv::C) continue;
std::string FuncName = Callee->getName().str();
FuncPtr = nullptr;
size_t param = 0;
// Marker: ADD_TO_INJECTIONS
// If you just need to add another function to test for SQL etc.
// then add them here.
// To add a new class or to work on e.g. std::string/Rust strings/...
// you will need to add a function to afl-compiler-rt.c.o and
// and upwards in this file add a pointer to that function to use
// here.
if (doSQL &&
(FuncName.compare("sqlite3_exec") == 0 ||
FuncName.compare("PQexec") == 0 || FuncName.compare("") == 0 ||
FuncName.compare("PQexecParams") == 0 ||
FuncName.compare("mysql_query") == 0)) {
if (!be_quiet) {
errs() << "Injection SQL hook: " << FuncName << "\n";
}
FuncPtr = sqlfunc;
param = 1;
}
if (doLDAP && (FuncName.compare("ldap_search_ext") == 0 ||
FuncName.compare("ldap_search_ext_s") == 0)) {
if (!be_quiet) {
errs() << "Injection LDAP hook: " << FuncName << "\n";
}
FuncPtr = ldapfunc;
param = 1;
}
if (doXSS && (FuncName.compare("htmlReadMemory") == 0)) {
if (!be_quiet) {
errs() << "Injection XSS hook: " << FuncName << "\n";
}
FuncPtr = xssfunc;
param = 1;
}
if (FuncPtr) {
IRBuilder<> IRB(callInst->getParent());
IRB.SetInsertPoint(callInst);
Value *parameter = callInst->getArgOperand(param);
std::vector<Value *> args;
Value *casted = IRB.CreatePointerCast(parameter, i8PtrTy);
args.push_back(casted);
IRB.CreateCall(FuncPtr, args);
}
}
}
}
}
return true;
}
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
PreservedAnalyses InjectionRoutines::run(Module &M,
ModuleAnalysisManager &MAM) {
#else
bool InjectionRoutines::runOnModule(Module &M) {
#endif
if (getenv("AFL_QUIET") == NULL)
printf("Running injection-pass by Marc Heuse (mh@mh-sec.de)\n");
else
be_quiet = 1;
if (getenv("AFL_LLVM_INJECTIONS_ALL")) {
doSQL = true;
doLDAP = true;
doXSS = true;
}
if (getenv("AFL_LLVM_INJECTIONS_SQL")) { doSQL = true; }
if (getenv("AFL_LLVM_INJECTIONS_LDAP")) { doLDAP = true; }
if (getenv("AFL_LLVM_INJECTIONS_XSS")) { doXSS = true; }
hookRtns(M);
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
auto PA = PreservedAnalyses::all();
#endif
verifyModule(M);
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
return PA;
#else
return true;
#endif
}
#if LLVM_VERSION_MAJOR < 11 /* use old pass manager */
static void registerInjectionRoutinesPass(const PassManagerBuilder &,
legacy::PassManagerBase &PM) {
auto p = new InjectionRoutines();
PM.add(p);
}
static RegisterStandardPasses RegisterInjectionRoutinesPass(
PassManagerBuilder::EP_OptimizerLast, registerInjectionRoutinesPass);
static RegisterStandardPasses RegisterInjectionRoutinesPass0(
PassManagerBuilder::EP_EnabledOnOptLevel0, registerInjectionRoutinesPass);
#if LLVM_VERSION_MAJOR >= 11
static RegisterStandardPasses RegisterInjectionRoutinesPassLTO(
PassManagerBuilder::EP_FullLinkTimeOptimizationLast,
registerInjectionRoutinesPass);
#endif
#endif

81
instrumentation/split-compares-pass.so.cc
View File

@ -1584,7 +1584,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_UGT, t_f0, t_f1);
#if LLVM_MAJOR >= 16
icmp_fraction_result->insertInto(negative_bb, negative_bb->end());
icmp_fraction_result2->insertInto(positive_bb, negative_bb->end());
icmp_fraction_result2->insertInto(positive_bb, positive_bb->end());
#else
negative_bb->getInstList().push_back(icmp_fraction_result);
positive_bb->getInstList().push_back(icmp_fraction_result2);
@ -1598,7 +1598,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_ULT, t_f0, t_f1);
#if LLVM_MAJOR >= 16
icmp_fraction_result->insertInto(negative_bb, negative_bb->end());
icmp_fraction_result2->insertInto(positive_bb, negative_bb->end());
icmp_fraction_result2->insertInto(positive_bb, positive_bb->end());
#else
negative_bb->getInstList().push_back(icmp_fraction_result);
positive_bb->getInstList().push_back(icmp_fraction_result2);
@ -1707,12 +1707,6 @@ bool SplitComparesTransform::runOnModule(Module &M) {
#endif
char *bitw_env = getenv("AFL_LLVM_LAF_SPLIT_COMPARES_BITW");
if (!bitw_env) bitw_env = getenv("LAF_SPLIT_COMPARES_BITW");
if (bitw_env) { target_bitwidth = atoi(bitw_env); }
enableFPSplit = getenv("AFL_LLVM_LAF_SPLIT_FLOATS") != NULL;
if ((isatty(2) && getenv("AFL_QUIET") == NULL) ||
getenv("AFL_DEBUG") != NULL) {
@ -1728,6 +1722,27 @@ bool SplitComparesTransform::runOnModule(Module &M) {
}
char *bitw_env = getenv("AFL_LLVM_LAF_SPLIT_COMPARES_BITW");
if (!bitw_env) bitw_env = getenv("LAF_SPLIT_COMPARES_BITW");
if (bitw_env) { target_bitwidth = atoi(bitw_env); }
if (getenv("AFL_LLVM_LAF_SPLIT_FLOATS")) { enableFPSplit = true; }
bool split_comp = false;
if (getenv("AFL_LLVM_LAF_SPLIT_COMPARES")) {
#if LLVM_MAJOR == 17
if (!be_quiet)
fprintf(stderr,
"WARNING: AFL++ splitting integer comparisons is disabled in "
"LLVM 17 due bugs, switch to 16 or 18!\n");
#else
split_comp = true;
#endif
}
#if LLVM_MAJOR >= 11
auto PA = PreservedAnalyses::all();
#endif
@ -1746,36 +1761,40 @@ bool SplitComparesTransform::runOnModule(Module &M) {
}
std::vector<CmpInst *> worklist;
/* iterate over all functions, bbs and instruction search for all integer
* compare instructions. Save them into the worklist for later. */
for (auto &F : M) {
if (split_comp) {
if (!isInInstrumentList(&F, MNAME)) continue;
std::vector<CmpInst *> worklist;
/* iterate over all functions, bbs and instruction search for all integer
* compare instructions. Save them into the worklist for later. */
for (auto &F : M) {
for (auto &BB : F) {
if (!isInInstrumentList(&F, MNAME)) continue;
for (auto &IN : BB) {
for (auto &BB : F) {
if (auto CI = dyn_cast<CmpInst>(&IN)) {
for (auto &IN : BB) {
auto op0 = CI->getOperand(0);
auto op1 = CI->getOperand(1);
if (!op0 || !op1) {
if (auto CI = dyn_cast<CmpInst>(&IN)) {
auto op0 = CI->getOperand(0);
auto op1 = CI->getOperand(1);
if (!op0 || !op1) {
#if LLVM_MAJOR >= 11
return PA;
return PA;
#else
return false;
return false;
#endif
}
}
auto iTy1 = dyn_cast<IntegerType>(op0->getType());
if (iTy1 && isa<IntegerType>(op1->getType())) {
auto iTy1 = dyn_cast<IntegerType>(op0->getType());
if (iTy1 && isa<IntegerType>(op1->getType())) {
unsigned bitw = iTy1->getBitWidth();
if (isSupportedBitWidth(bitw)) { worklist.push_back(CI); }
unsigned bitw = iTy1->getBitWidth();
if (isSupportedBitWidth(bitw)) { worklist.push_back(CI); }
}
}
@ -1785,13 +1804,13 @@ bool SplitComparesTransform::runOnModule(Module &M) {
}
}
// now that we have a list of all integer comparisons we can start replacing
// them with the splitted alternatives.
for (auto CI : worklist) {
// now that we have a list of all integer comparisons we can start replacing
// them with the splitted alternatives.
for (auto CI : worklist) {
simplifyAndSplit(CI, M);
simplifyAndSplit(CI, M);
}
}

2
instrumentation/split-switches-pass.so.cc
View File

@ -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 {

2
nyx_mode/LIBNYX_VERSION
View File

@ -1 +1 @@
8291ef4
512058a

2
nyx_mode/QEMU-Nyx

@ -1 +1 @@
Subproject commit 92ed7cefc1bd043a1230ca74b263b484825c2655
Subproject commit 02a6f2aed360cfe76bb3d788dafe517c350d74e5

2
nyx_mode/QEMU_NYX_VERSION
View File

@ -1 +1 @@
874fa033d1
02a6f2aed3

2
nyx_mode/libnyx

@ -1 +1 @@
Subproject commit 8291ef4cb4f1d4bfe3026fe198167fd5c98e3a15
Subproject commit 512058a68d58b1a90a4e3971b526a955559735bf

2
qemu_mode/QEMUAFL_VERSION
View File

@ -1 +1 @@
a1321713c7
e63c9af193

33
qemu_mode/README.md
View File

@ -193,12 +193,39 @@ Comparative measurements of execution speed or instrumentation coverage will be
fairly meaningless if the optimization levels or instrumentation scopes don't
match.
## 12) Other features
## 12) Coverage information
Coverage information about a run of a target binary can be obtained using a
dedicated QEMU user mode plugin enabled at runtime: the `drcov.c` plugin
collects coverage information from the target binary and writes it in the Drcov
format. This file can then be loaded using tools such as
[lighthouse](https://github.com/gaasedelen/lighthouse),
[lightkeeper](https://github.com/WorksButNotTested/lightkeeper) or
[Cartographer](https://github.com/nccgroup/Cartographer).
To compile the QEMU TCG plugins, run the following command from the `qemuafl`
directory:
```
make plugins
```
Plugins can be loaded using either the `QEMU_PLUGIN` environment variable or
using the `-plugin` option. For example:
```
afl-qemu-trace -plugin qemuafl/build/contrib/plugins/libdrcov.so,arg=filename=/tmp/target.drcov.trace <target> <args>
```
This would execute the target binary with the provided arguments and, once done,
would write coverage information at `/tmp/target.drcov.trace`.
## 13) Other features
With `AFL_QEMU_FORCE_DFL`, you force QEMU to ignore the registered signal
handlers of the target.
## 13) Gotchas, feedback, bugs
## 14) Gotchas, feedback, bugs
If you need to fix up checksums or do other cleanups on mutated test cases, see
`afl_custom_post_process` in custom_mutators/examples/example.c for a viable
@ -217,7 +244,7 @@ program may be utilizing. In particular, it does not appear to have full support
for AVX2/FMA3. Using binaries for older CPUs or recompiling them with
`-march=core2`, can help.
## 14) Alternatives: static rewriting
## 15) Alternatives: static rewriting
Statically rewriting binaries just once, instead of attempting to translate them
at run time, can be a faster alternative. That said, static rewriting is fraught

4
qemu_mode/build_qemu_support.sh
View File

@ -132,7 +132,10 @@ echo "Building for CPU target $CPU_TARGET"
# --enable-pie seems to give a couple of exec's a second performance
# improvement, much to my surprise. Not sure how universal this is..
# --enable-plugins allows loading TCG plugins at runtime, for example to obtain
# coverage information, and does not seem to negatively impact performance
QEMU_CONF_FLAGS=" \
--enable-plugins \
--audio-drv-list= \
--disable-blobs \
--disable-bochs \
@ -162,7 +165,6 @@ QEMU_CONF_FLAGS=" \
--disable-numa \
--disable-opengl \
--disable-parallels \
--disable-plugins \
--disable-qcow1 \
--disable-qed \
--disable-rbd \

38
qemu_mode/libqasan/dlmalloc.c
View File

@ -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))

4
qemu_mode/libqasan/malloc.c
View File

@ -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

2
qemu_mode/qemuafl

@ -1 +1 @@
Subproject commit a1321713c7502c152dd7527555e0f8a800d55225
Subproject commit e63c9af1937c13163cd1bc8bc276101441cbe70a

4591
src/afl-cc.c
View File

File diff suppressed because it is too large Load Diff

27
src/afl-common.c
View File

@ -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:");
}
}

3
src/afl-forkserver.c
View File

@ -685,8 +685,7 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
}
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);

11
src/afl-fuzz-bitmap.c
View File

@ -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;
}

5
src/afl-fuzz-extras.c
View File

@ -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;

12
src/afl-fuzz-mutators.c
View File

@ -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) {

32
src/afl-fuzz-one.c
View File

@ -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;
@ -3703,13 +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. */

30
src/afl-fuzz-python.c
View File

@ -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) {

14
src/afl-fuzz-redqueen.c
View File

@ -1321,7 +1321,7 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
} else {
#ifndef WORD_SIZE_64
if (repl <= 0x00ffffffffffffff {
if (repl <= 0x00ffffffffffffff) {
new_val = repl << 8;
u8 scale_len = 0;
@ -1379,7 +1379,7 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
new_vall += (scale_len << 2) + 3;
ilen = scale_len + 5;
if (ilen <= its_len) {
if (ilen <= its_len && ilen > 1) {
u8 tmpbuf[32];
memcpy(tmpbuf, buf + idx, ilen);
@ -1403,7 +1403,7 @@ static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
if (do_call) {
if (ilen <= its_len) {
if (ilen <= its_len && ilen > 1) {
u8 tmpbuf[32];
memcpy(tmpbuf, buf + idx, ilen);
@ -1421,7 +1421,7 @@ 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
// 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
@ -1828,7 +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
@ -1906,6 +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];
@ -2700,6 +2702,8 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
hshape = SHAPE_BYTES(h->shape);
if (hshape < 2) { return 0; }
if (h->hits > CMP_MAP_RTN_H) {
loggeds = CMP_MAP_RTN_H;

60
src/afl-fuzz-run.c
View File

@ -60,6 +60,23 @@ fuzz_run_target(afl_state_t *afl, afl_forkserver_t *fsrv, u32 timeout) {
fsrv_run_result_t res = afl_fsrv_run_target(fsrv, timeout, &afl->stop_soon);
/* If post_run() function is defined in custom mutator, the function will be
called each time after AFL++ executes the target program. */
if (unlikely(afl->custom_mutators_count)) {
LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
if (unlikely(el->afl_custom_post_run)) {
el->afl_custom_post_run(el->data);
}
});
}
#ifdef PROFILING
clock_gettime(CLOCK_REALTIME, &spec);
time_spent_start = (spec.tv_sec * 1000000000) + spec.tv_nsec;
@ -152,20 +169,16 @@ write_to_testcase(afl_state_t *afl, void **mem, u32 len, u32 fix) {
}
if (unlikely(afl->custom_mutators_count)) {
LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
if (el->afl_custom_fuzz_send) {
if (el->afl_custom_fuzz_send) {
el->afl_custom_fuzz_send(el->data, *mem, new_size);
sent = 1;
el->afl_custom_fuzz_send(el->data, *mem, new_size);
sent = 1;
}
}
});
}
});
if (likely(!sent)) {
@ -186,7 +199,7 @@ write_to_testcase(afl_state_t *afl, void **mem, u32 len, u32 fix) {
}
} else {
} else { /* !afl->custom_mutators_count */
if (unlikely(len < afl->min_length && !fix)) {
@ -198,27 +211,8 @@ write_to_testcase(afl_state_t *afl, void **mem, u32 len, u32 fix) {
}
if (unlikely(afl->custom_mutators_count)) {
LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
if (el->afl_custom_fuzz_send) {
el->afl_custom_fuzz_send(el->data, *mem, len);
sent = 1;
}
});
}
if (likely(!sent)) {
/* boring uncustom. */
afl_fsrv_write_to_testcase(&afl->fsrv, *mem, len);
}
/* boring uncustom. */
afl_fsrv_write_to_testcase(&afl->fsrv, *mem, len);
}
@ -918,7 +912,7 @@ u8 trim_case(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
detected, it will still work to some extent, so we don't check for
this. */
if (q->len < 5) { return 0; }
if (unlikely(q->len < 5)) { return 0; }
afl->stage_name = afl->stage_name_buf;
afl->bytes_trim_in += q->len;

3
src/afl-fuzz-state.c
View File

@ -89,9 +89,8 @@ void afl_state_init(afl_state_t *afl, uint32_t map_size) {
afl->w_end = 0.3;
afl->g_max = 5000;
afl->period_pilot_tmp = 5000.0;
afl->schedule = FAST; /* Power schedule (default: FAST) */
afl->schedule = EXPLORE; /* Power schedule (default: EXPLORE)*/
afl->havoc_max_mult = HAVOC_MAX_MULT;
afl->clear_screen = 1; /* Window resized? */
afl->havoc_div = 1; /* Cycle count divisor for havoc */
afl->stage_name = "init"; /* Name of the current fuzz stage */

13
src/afl-fuzz-stats.c
View File

@ -288,6 +288,8 @@ void write_stats_file(afl_state_t *afl, u32 t_bytes, double bitmap_cvg,
#ifndef __HAIKU__
if (getrusage(RUSAGE_CHILDREN, &rus)) { rus.ru_maxrss = 0; }
#endif
u64 runtime = afl->prev_run_time + cur_time - afl->start_time;
if (!runtime) { runtime = 1; }
fprintf(
f,
@ -336,17 +338,14 @@ void write_stats_file(afl_state_t *afl, u32 t_bytes, double bitmap_cvg,
"target_mode : %s%s%s%s%s%s%s%s%s%s\n"
"command_line : %s\n",
(afl->start_time - afl->prev_run_time) / 1000, cur_time / 1000,
(afl->prev_run_time + cur_time - afl->start_time) / 1000, (u32)getpid(),
runtime / 1000, (u32)getpid(),
afl->queue_cycle ? (afl->queue_cycle - 1) : 0, afl->cycles_wo_finds,
afl->longest_find_time > cur_time - afl->last_find_time
? afl->longest_find_time / 1000
: ((afl->start_time == 0 || afl->last_find_time == 0)
? 0
: (cur_time - afl->last_find_time) / 1000),
afl->fsrv.total_execs,
afl->fsrv.total_execs /
((double)(afl->prev_run_time + get_cur_time() - afl->start_time) /
1000),
afl->fsrv.total_execs, afl->fsrv.total_execs / ((double)(runtime) / 1000),
afl->last_avg_execs_saved, afl->queued_items, afl->queued_favored,
afl->queued_discovered, afl->queued_imported, afl->queued_variable,
afl->max_depth, afl->current_entry, afl->pending_favored,
@ -1060,7 +1059,7 @@ void show_stats_normal(afl_state_t *afl) {
sprintf(tmp, "%s (%s%s saved)", u_stringify_int(IB(0), afl->total_tmouts),
u_stringify_int(IB(1), afl->saved_tmouts),
(afl->saved_hangs >= KEEP_UNIQUE_HANG) ? "+" : "");
(afl->saved_tmouts >= KEEP_UNIQUE_HANG) ? "+" : "");
SAYF(bSTG bV bSTOP " total tmouts : " cRST "%-20s" bSTG bV "\n", tmp);
@ -1892,7 +1891,7 @@ void show_stats_pizza(afl_state_t *afl) {
sprintf(tmp, "%s (%s%s saved)", u_stringify_int(IB(0), afl->total_tmouts),
u_stringify_int(IB(1), afl->saved_tmouts),
(afl->saved_hangs >= KEEP_UNIQUE_HANG) ? "+" : "");
(afl->saved_tmouts >= KEEP_UNIQUE_HANG) ? "+" : "");
SAYF(bSTG bV bSTOP " burned pizzas : " cRST "%-20s" bSTG bV
"\n",

34
src/afl-fuzz.c
View File

@ -138,7 +138,7 @@ static void usage(u8 *argv0, int more_help) {
"to\n"
" exploit mode, and back on new coverage (default: %u)\n"
" -p schedule - power schedules compute a seed's performance score:\n"
" fast(default), explore, exploit, seek, rare, mmopt, "
" explore(default), fast, exploit, seek, rare, mmopt, "
"coe, lin\n"
" quad -- see docs/FAQ.md for more information\n"
" -f file - location read by the fuzzed program (default: stdin "
@ -1749,6 +1749,34 @@ int main(int argc, char **argv_orig, char **envp) {
}
// Marker: ADD_TO_INJECTIONS
if (getenv("AFL_LLVM_INJECTIONS_ALL") || getenv("AFL_LLVM_INJECTIONS_SQL") ||
getenv("AFL_LLVM_INJECTIONS_LDAP") || getenv("AFL_LLVM_INJECTIONS_XSS")) {
OKF("Adding injection tokens to dictionary.");
if (getenv("AFL_LLVM_INJECTIONS_ALL") ||
getenv("AFL_LLVM_INJECTIONS_SQL")) {
add_extra(afl, "'\"\"'", 4);
}
if (getenv("AFL_LLVM_INJECTIONS_ALL") ||
getenv("AFL_LLVM_INJECTIONS_LDAP")) {
add_extra(afl, "*)(1=*))(|", 10);
}
if (getenv("AFL_LLVM_INJECTIONS_ALL") ||
getenv("AFL_LLVM_INJECTIONS_XSS")) {
add_extra(afl, "1\"><\"", 5);
}
}
OKF("Generating fuzz data with a length of min=%u max=%u", afl->min_length,
afl->max_length);
u32 min_alloc = MAX(64U, afl->min_length);
@ -1784,6 +1812,10 @@ int main(int argc, char **argv_orig, char **envp) {
check_cpu_governor(afl);
#endif
#ifdef __APPLE__
setenv("DYLD_NO_PIE", "1", 0);
#endif
if (getenv("LD_PRELOAD")) {
WARNF(

2
src/afl-ld-lto.c
View File

@ -278,7 +278,7 @@ int main(int argc, char **argv) {
if (getenv("AFL_LD_PASSTHROUGH") != NULL) passthrough = 1;
if (getenv("AFL_REAL_LD") != NULL) real_ld = getenv("AFL_REAL_LD");
if (!afl_path || !*afl_path) afl_path = "/usr/local/lib/afl";
if (!afl_path || !*afl_path) afl_path = AFL_PATH;
setenv("AFL_LD_CALLER", "1", 1);

69
test/test-basic.sh
View File

@ -2,6 +2,7 @@
. ./test-pre.sh
OS=$(uname -s)
AFL_GCC=afl-gcc
$ECHO "$BLUE[*] Testing: ${AFL_GCC}, afl-showmap, afl-fuzz, afl-cmin and afl-tmin"
@ -61,7 +62,7 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
}
# now we want to be sure that afl-fuzz is working
# make sure crash reporter is disabled on Mac OS X
(test "$(uname -s)" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
(test "$OS" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
$ECHO "$RED[!] we cannot run afl-fuzz with enabled crash reporter. Run 'sudo sh afl-system-config'.$RESET"
true
}) || {
@ -84,16 +85,20 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
}
echo 000000000000000000000000 > in/in2
echo 111 > in/in3
mkdir -p in2
../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
CNT=`ls in2/* 2>/dev/null | wc -l`
case "$CNT" in
*2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
*) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
;;
esac
rm -f in2/in*
test "$OS" = "Darwin" && {
$ECHO "$GREY[*] afl-cmin not available on macOS, cannot test afl-cmin"
} || {
mkdir -p in2
../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
CNT=`ls in2/* 2>/dev/null | wc -l`
case "$CNT" in
*2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
*) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
;;
esac
rm -f in2/in*
}
export AFL_QUIET=1
if command -v bash >/dev/null ; then {
../afl-cmin.bash -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null
@ -182,7 +187,7 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
}
# now we want to be sure that afl-fuzz is working
# make sure crash reporter is disabled on Mac OS X
(test "$(uname -s)" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
(test "$OS" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
$ECHO "$RED[!] we cannot run afl-fuzz with enabled crash reporter. Run 'sudo sh afl-system-config'.$RESET"
true
}) || {
@ -204,25 +209,29 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
}
}
echo 000000000000000000000000 > in/in2
echo AAA > in/in3
mkdir -p in2
../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
CNT=`ls in2/* 2>/dev/null | wc -l`
case "$CNT" in
*2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
\ *1|1) { # allow leading whitecase for portability
test -s in2/* && $ECHO "$YELLOW[?] afl-cmin did minimize to one testcase. This can be a bug or due compiler optimization."
test -s in2/* || {
$ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
echo AAA > in/in2
test "$OS" = "Darwin" && {
$ECHO "$GREY[*] afl-cmin not available on macOS, cannot test afl-cmin"
} || {
mkdir -p in2
../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
CNT=`ls in2/* 2>/dev/null | wc -l`
case "$CNT" in
*2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
\ *1|1) { # allow leading whitecase for portability
test -s in2/* && $ECHO "$YELLOW[?] afl-cmin did minimize to one testcase. This can be a bug or due compiler optimization."
test -s in2/* || {
$ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
}
}
}
;;
*) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
;;
esac
rm -f in2/in*
;;
*) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
;;
esac
rm -f in2/in*
}
export AFL_QUIET=1
if command -v bash >/dev/null ; then {
../afl-cmin.bash -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null

7
test/test-compilers.sh Executable file
View File

@ -0,0 +1,7 @@
#!/bin/sh
echo Testing compilers ...
for cc in afl-cc afl-gcc afl-clang afl-clang-fast afl-clang-lto afl-gcc-fast; do
test -e ../$cc && { ../$cc -o t ../test-instr.c >/dev/null 2<&1 || echo Failing: $cc ; } || echo Missing: $cc
done
rm -f t
echo Done!

28
test/test-llvm.sh
View File

@ -2,6 +2,8 @@
. ./test-pre.sh
OS=$(uname -s)
$ECHO "$BLUE[*] Testing: llvm_mode, afl-showmap, afl-fuzz, afl-cmin and afl-tmin"
test -e ../afl-clang-fast -a -e ../split-switches-pass.so && {
../afl-clang-fast -o test-instr.plain ../test-instr.c > /dev/null 2>&1
@ -123,7 +125,7 @@ test -e ../afl-clang-fast -a -e ../split-switches-pass.so && {
}
# now we want to be sure that afl-fuzz is working
# make sure crash reporter is disabled on Mac OS X
(test "$(uname -s)" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
(test "$OS" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
$ECHO "$RED[!] we cannot run afl-fuzz with enabled crash reporter. Run 'sudo sh afl-system-config'.$RESET"
CODE=1
true
@ -146,18 +148,22 @@ test -e ../afl-clang-fast -a -e ../split-switches-pass.so && {
}
}
test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc" || {
mkdir -p in2
echo 000000000000000000000000 > in/in2
echo 111 > in/in3
mkdir -p in2
../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
CNT=`ls in2/* 2>/dev/null | wc -l`
case "$CNT" in
*2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
*) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
;;
esac
rm -f in2/in*
test "$OS" = "Darwin" && {
$ECHO "$GREY[*] afl-cmin not available on macOS, cannot test afl-cmin"
} || {
../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
CNT=`ls in2/* 2>/dev/null | wc -l`
case "$CNT" in
*2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
*) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
CODE=1
;;
esac
rm -f in2/in*
}
export AFL_QUIET=1
if type bash >/dev/null ; then {
../afl-cmin.bash -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null

2
unicorn_mode/UNICORNAFL_VERSION
View File

@ -1 +1 @@
f607118f
63aab0f

2
unicorn_mode/unicornafl

@ -1 +1 @@
Subproject commit f607118fc10e5225da751385075792e24133a130
Subproject commit 63aab0f752ba1d40a1c4de6988a78cd1e6dcc1c7

19
utils/aflpp_driver/aflpp_driver.c
View File

@ -279,7 +279,9 @@ __attribute__((weak)) int main(int argc, char **argv) {
*/
if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
if (argc < 2 || strncmp(argv[1], "-h", 2) == 0 ||
strcmp(argv[1], "--help") == 0) {
printf(
"============================== INFO ================================\n"
"This binary is built for afl++.\n"
@ -290,12 +292,21 @@ __attribute__((weak)) int main(int argc, char **argv) {
"afl-fuzz will run N iterations before re-spawning the process "
"(default: "
"INT_MAX)\n"
"You can also use AFL_FUZZER_LOOPCOUNT to set N\n"
"For stdin input processing, pass '-' as single command line option.\n"
"For file input processing, pass '@@' as single command line option.\n"
"To use with afl-cmin or afl-cmin.bash pass '-' as single command line "
"option\n"
"===================================================================\n",
argv[0], argv[0]);
if (argc == 2 &&
(strncmp(argv[1], "-h", 2) == 0 || strcmp(argv[1], "--help") == 0)) {
exit(0);
}
}
return LLVMFuzzerRunDriver(&argc, &argv, LLVMFuzzerTestOneInput);
@ -369,6 +380,12 @@ __attribute__((weak)) int LLVMFuzzerRunDriver(
}
if (getenv("AFL_FUZZER_LOOPCOUNT")) {
N = atoi(getenv("AFL_FUZZER_LOOPCOUNT"));
}
assert(N > 0);
__afl_manual_init();

6
utils/libtokencap/libtokencap.so.c
View File

@ -55,7 +55,7 @@
#elif defined __HAIKU__
#include <kernel/image.h>
#elif defined __sun
/* For map addresses the old struct is enough */
/* For map addresses the old struct is enough */
#include <sys/procfs.h>
#include <limits.h>
#endif
@ -168,7 +168,7 @@ static void __tokencap_load_mappings(void) {
#elif defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__
#if defined __FreeBSD__
int mib[] = {CTL_KERN, KERN_PROC, KERN_PROC_VMMAP, __tokencap_pid};
int mib[] = {CTL_KERN, KERN_PROC, KERN_PROC_VMMAP, __tokencap_pid};
#elif defined __OpenBSD__
int mib[] = {CTL_KERN, KERN_PROC_VMMAP, __tokencap_pid};
#elif defined __NetBSD__
@ -209,7 +209,7 @@ static void __tokencap_load_mappings(void) {
#if defined __FreeBSD__ || defined __NetBSD__
#if defined __FreeBSD__
size_t size = region->kve_structsize;
size_t size = region->kve_structsize;
if (size == 0) break;
#elif defined __NetBSD__