| ========= |
| ChangeLog |
| ========= |
| |
| This is the list of all noteworthy changes made in every public release of |
| the tool. See README for the general instruction manual. |
| |
| ---------------- |
| Staying informed |
| ---------------- |
| |
| Want to stay in the loop on major new features? Join our mailing list by |
| sending a mail to <afl-users+subscribe@googlegroups.com>. |
| |
| |
| ---------------------- |
| Version ++2.54d (dev): |
| ---------------------- |
| |
| - persistent mode for QEMU (see qemu_mode/README.md) |
| - custom mutator library is now a standard mutator, to exclusivly use it |
| add AFL_CUSTOM_MUTATOR_ONLY (that will trigger the previous behaviour) |
| - no more unlinking the input file, this way the input file can also be a |
| FIFO or disk partition |
| - setting LLVM_CONFIG for llvm_mode will now again switch to the selected |
| llvm version. If you setup is correct. |
| - fuzzing strategy yields for custom mutator were missing from the UI, added them :) |
| - libtokencap and libdislocator now compile to the afl_root directory and are |
| installed to the .../lib/afl directory when present during make install |
| - reducing duplicate code in afl-fuzz |
| - added "make help" |
| - removed compile warnings from python internal stuff |
| - added man page for afl-clang-fast[++] |
| - updated documentation |
| - Wine mode to run Win32 binaries with the QEMU instrumentation (-W) |
| |
| |
| -------------------------- |
| Version ++2.54c (release): |
| -------------------------- |
| |
| - big code refactoring: |
| * all includes are now in include/ |
| * all afl sources are now in src/ - see src/README.src |
| * afl-fuzz was splitted up in various individual files for including |
| functionality in other programs (e.g. forkserver, memory map, etc.) |
| for better readability. |
| * new code indention everywhere |
| - auto-generating man pages for all (main) tools |
| - added AFL_FORCE_UI to show the UI even if the terminal is not detected |
| - llvm 9 is now supported (still needs testing) |
| - Android is now supported (thank to JoeyJiao!) - still need to modify the Makefile though |
| - fix building qemu on some Ubuntus (thanks to floyd!) |
| - custom mutator by a loaded library is now supported (thanks to kyakdan!) |
| - added PR that includes peak_rss_mb and slowest_exec_ms in the fuzzer_stats report |
| - more support for *BSD (thanks to devnexen!) |
| - fix building on *BSD (thanks to tobias.kortkamp for the patch) |
| - fix for a few features to support different map sized than 2^16 |
| - afl-showmap: new option -r now shows the real values in the buckets (stock |
| afl never did), plus shows tuple content summary information now |
| - small docu updates |
| - NeverZero counters for QEMU |
| - NeverZero counters for Unicorn |
| - CompareCoverage Unicorn |
| - immediates-only instrumentation for CompareCoverage |
| |
| |
| -------------------------- |
| Version ++2.53c (release): |
| -------------------------- |
| |
| - README is now README.md |
| - imported the few minor changes from the 2.53b release |
| - unicorn_mode got added - thanks to domenukk for the patch! |
| - fix llvm_mode AFL_TRACE_PC with modern llvm |
| - fix a crash in qemu_mode which also exists in stock afl |
| - added libcompcov, a laf-intel implementation for qemu! :) |
| see qemu_mode/libcompcov/README.libcompcov |
| - afl-fuzz now displays the selected core in the status screen (blue {#}) |
| - updated afl-fuzz and afl-system-config for new scaling governor location |
| in modern kernels |
| - using the old ineffective afl-gcc will now show a deprecation warning |
| - all queue, hang and crash files now have their discovery time in their name |
| - if llvm_mode was compiled, afl-clang/afl-clang++ will point to these |
| instead of afl-gcc |
| - added instrim, a much faster llvm_mode instrumentation at the cost of |
| path discovery. See llvm_mode/README.instrim (https://github.com/csienslab/instrim) |
| - added MOpt (github.com/puppet-meteor/MOpt-AFL) mode, see docs/README.MOpt |
| - added code to make it more portable to other platforms than Intel Linux |
| - added never zero counters for afl-gcc and optionally (because of an |
| optimization issue in llvm < 9) for llvm_mode (AFL_LLVM_NEVER_ZERO=1) |
| - added a new doc about binary only fuzzing: docs/binaryonly_fuzzing.txt |
| - more cpu power for afl-system-config |
| - added forkserver patch to afl-tmin, makes it much faster (originally from |
| github.com/nccgroup/TriforceAFL) |
| - added whitelist support for llvm_mode via AFL_LLVM_WHITELIST to allow |
| only to instrument what is actually interesting. Gives more speed and less |
| map pollution (originally by choller@mozilla) |
| - added Python Module mutator support, python2.7-dev is autodetected. |
| see docs/python_mutators.txt (originally by choller@mozilla) |
| - added AFL_CAL_FAST for slow applications and AFL_DEBUG_CHILD_OUTPUT for |
| debugging |
| - added -V time and -E execs option to better comparison runs, runs afl-fuzz |
| for a specific time/executions. |
| - added a -s seed switch to allow afl run with a fixed initial |
| seed that is not updated. This is good for performance and path discovery |
| tests as the random numbers are deterministic then |
| - llvm_mode LAF_... env variables can now be specified as AFL_LLVM_LAF_... |
| that is longer but in line with other llvm specific env vars |
| |
| |
| ----------------------------- |
| Version ++2.52c (2019-06-05): |
| ----------------------------- |
| |
| - Applied community patches. See docs/PATCHES for the full list. |
| LLVM and Qemu modes are now faster. |
| Important changes: |
| afl-fuzz: -e EXTENSION commandline option |
| llvm_mode: LAF-intel performance (needs activation, see llvm/README.laf-intel) |
| a few new environment variables for afl-fuzz, llvm and qemu, see docs/env_variables.txt |
| - Added the power schedules of AFLfast by Marcel Boehme, but set the default |
| to the AFL schedule, not to the FAST schedule. So nothing changes unless |
| you use the new -p option :-) - see docs/power_schedules.txt |
| - added afl-system-config script to set all system performance options for fuzzing |
| - llvm_mode works with llvm 3.9 up to including 8 ! |
| - qemu_mode got upgraded from 2.1 to 3.1 - incorporated from |
| https://github.com/andreafioraldi/afl and with community patches added |
| |
| |
| --------------------------- |
| Version 2.52b (2017-11-04): |
| --------------------------- |
| |
| - Upgraded QEMU patches from 2.3.0 to 2.10.0. Required troubleshooting |
| several weird issues. All the legwork done by Andrew Griffiths. |
| |
| - Added setsid to afl-showmap. See the notes for 2.51b. |
| |
| - Added target mode (deferred, persistent, qemu, etc) to fuzzer_stats. |
| Requested by Jakub Wilk. |
| |
| - afl-tmin should now save a partially minimized file when Ctrl-C |
| is pressed. Suggested by Jakub Wilk. |
| |
| - Added an option for afl-analyze to dump offsets in hex. Suggested by |
| Jakub Wilk. |
| |
| - Added support for parameters in triage_crashes.sh. Patch by Adam of |
| DC949. |
| |
| --------------------------- |
| Version 2.51b (2017-08-30): |
| --------------------------- |
| |
| - Made afl-tmin call setsid to prevent glibc traceback junk from showing |
| up on the terminal in some distros. Suggested by Jakub Wilk. |
| |
| --------------------------- |
| Version 2.50b (2017-08-19): |
| --------------------------- |
| |
| - Fixed an interesting timing corner case spotted by Jakub Wilk. |
| |
| - Addressed a libtokencap / pthreads incompatibility issue. Likewise, spotted |
| by Jakub Wilk. |
| |
| - Added a mention of afl-kit and Pythia. |
| |
| - Added AFL_FAST_CAL. |
| |
| - In-place resume now preserves .synced. Suggested by Jakub Wilk. |
| |
| --------------------------- |
| Version 2.49b (2017-07-18): |
| --------------------------- |
| |
| - Added AFL_TMIN_EXACT to allow path constraint for crash minimization. |
| |
| - Added dates for releases (retroactively for all of 2017). |
| |
| --------------------------- |
| Version 2.48b (2017-07-17): |
| --------------------------- |
| |
| - Added AFL_ALLOW_TMP to permit some scripts to run in /tmp. |
| |
| - Fixed cwd handling in afl-analyze (similar to the quirk in afl-tmin). |
| |
| - Made it possible to point -o and -f to the same file in afl-tmin. |
| |
| --------------------------- |
| Version 2.47b (2017-07-14): |
| --------------------------- |
| |
| - Fixed cwd handling in afl-tmin. Spotted by Jakub Wilk. |
| |
| --------------------------- |
| Version 2.46b (2017-07-10): |
| --------------------------- |
| |
| - libdislocator now supports AFL_LD_NO_CALLOC_OVER for folks who do not |
| want to abort on calloc() overflows. |
| |
| - Made a minor fix to libtokencap. Reported by Daniel Stender. |
| |
| - Added a small JSON dictionary, inspired on a dictionary done by Jakub Wilk. |
| |
| --------------------------- |
| Version 2.45b (2017-07-04): |
| --------------------------- |
| |
| - Added strstr, strcasestr support to libtokencap. Contributed by |
| Daniel Hodson. |
| |
| - Fixed a resumption offset glitch spotted by Jakub Wilk. |
| |
| - There are definitely no bugs in afl-showmap -c now. |
| |
| --------------------------- |
| Version 2.44b (2017-06-28): |
| --------------------------- |
| |
| - Added a visual indicator of ASAN / MSAN mode when compiling. Requested |
| by Jakub Wilk. |
| |
| - Added support for afl-showmap coredumps (-c). Suggested by Jakub Wilk. |
| |
| - Added LD_BIND_NOW=1 for afl-showmap by default. Although not really useful, |
| it reportedly helps reproduce some crashes. Suggested by Jakub Wilk. |
| |
| - Added a note about allocator_may_return_null=1 not always working with |
| ASAN. Spotted by Jakub Wilk. |
| |
| --------------------------- |
| Version 2.43b (2017-06-16): |
| --------------------------- |
| |
| - Added AFL_NO_ARITH to aid in the fuzzing of text-based formats. |
| Requested by Jakub Wilk. |
| |
| --------------------------- |
| Version 2.42b (2017-06-02): |
| --------------------------- |
| |
| - Renamed the R() macro to avoid a problem with llvm_mode in the latest |
| versions of LLVM. Fix suggested by Christian Holler. |
| |
| --------------------------- |
| Version 2.41b (2017-04-12): |
| --------------------------- |
| |
| - Addressed a major user complaint related to timeout detection. Timing out |
| inputs are now binned as "hangs" only if they exceed a far more generous |
| time limit than the one used to reject slow paths. |
| |
| --------------------------- |
| Version 2.40b (2017-04-02): |
| --------------------------- |
| |
| - Fixed a minor oversight in the insertion strategy for dictionary words. |
| Spotted by Andrzej Jackowski. |
| |
| - Made a small improvement to the havoc block insertion strategy. |
| |
| - Adjusted color rules for "is it done yet?" indicators. |
| |
| --------------------------- |
| Version 2.39b (2017-02-02): |
| --------------------------- |
| |
| - Improved error reporting in afl-cmin. Suggested by floyd. |
| |
| - Made a minor tweak to trace-pc-guard support. Suggested by kcc. |
| |
| - Added a mention of afl-monitor. |
| |
| --------------------------- |
| Version 2.38b (2017-01-22): |
| --------------------------- |
| |
| - Added -mllvm -sanitizer-coverage-block-threshold=0 to trace-pc-guard |
| mode, as suggested by Kostya Serebryany. |
| |
| --------------------------- |
| Version 2.37b (2017-01-22): |
| --------------------------- |
| |
| - Fixed a typo. Spotted by Jakub Wilk. |
| |
| - Fixed support for make install when using trace-pc. Spotted by |
| Kurt Roeckx. |
| |
| - Switched trace-pc to trace-pc-guard, which should be considerably |
| faster and is less quirky. Kudos to Konstantin Serebryany (and sorry |
| for dragging my feet). |
| |
| Note that for some reason, this mode doesn't perform as well as |
| "vanilla" afl-clang-fast / afl-clang. |
| |
| --------------------------- |
| Version 2.36b (2017-01-14): |
| --------------------------- |
| |
| - Fixed a cosmetic bad free() bug when aborting -S sessions. Spotted |
| by Johannes S. |
| |
| - Made a small change to afl-whatsup to sort fuzzers by name. |
| |
| - Fixed a minor issue with malloc(0) in libdislocator. Spotted by |
| Rene Freingruber. |
| |
| - Changed the clobber pattern in libdislocator to a slightly more |
| reliable one. Suggested by Rene Freingruber. |
| |
| - Added a note about THP performance. Suggested by Sergey Davidoff. |
| |
| - Added a somewhat unofficial support for running afl-tmin with a |
| baseline "mask" that causes it to minimize only for edges that |
| are unique to the input file, but not to the "boring" baseline. |
| Suggested by Sami Liedes. |
| |
| - "Fixed" a getPassName() problem with newer versions of clang. |
| Reported by Craig Young and several other folks. |
| |
| Yep, I know I have a backlog on several other feature requests. |
| Stay tuned! |
| |
| -------------- |
| Version 2.35b: |
| -------------- |
| |
| - Fixed a minor cmdline reporting glitch, spotted by Leo Barnes. |
| |
| - Fixed a silly bug in libdislocator. Spotted by Johannes Schultz. |
| |
| -------------- |
| Version 2.34b: |
| -------------- |
| |
| - Added a note about afl-tmin to technical_details.txt. |
| |
| - Added support for AFL_NO_UI, as suggested by Leo Barnes. |
| |
| -------------- |
| Version 2.33b: |
| -------------- |
| |
| - Added code to strip -Wl,-z,defs and -Wl,--no-undefined for afl-clang-fast, |
| since they interfere with -shared. Spotted and diagnosed by Toby Hutton. |
| |
| - Added some fuzzing tips for Android. |
| |
| -------------- |
| Version 2.32b: |
| -------------- |
| |
| - Added a check for AFL_HARDEN combined with AFL_USE_*SAN. Suggested by |
| Hanno Boeck. |
| |
| - Made several other cosmetic adjustments to cycle timing in the wake of the |
| big tweak made in 2.31b. |
| |
| -------------- |
| Version 2.31b: |
| -------------- |
| |
| - Changed havoc cycle counts for a marked performance boost, especially |
| with -S / -d. See the discussion of FidgetyAFL in: |
| |
| https://groups.google.com/forum/#!topic/afl-users/fOPeb62FZUg |
| |
| While this does not implement the approach proposed by the authors of |
| the CCS paper, the solution is a result of digging into that research; |
| more improvements may follow as I do more experiments and get more |
| definitive data. |
| |
| -------------- |
| Version 2.30b: |
| -------------- |
| |
| - Made minor improvements to persistent mode to avoid the remote |
| possibility of "no instrumentation detected" issues with very low |
| instrumentation densities. |
| |
| - Fixed a minor glitch with a leftover process in persistent mode. |
| Reported by Jakub Wilk and Daniel Stender. |
| |
| - Made persistent mode bitmaps a bit more consistent and adjusted the way |
| this is shown in the UI, especially in persistent mode. |
| |
| -------------- |
| Version 2.29b: |
| -------------- |
| |
| - Made a minor #include fix to llvm_mode. Suggested by Jonathan Metzman. |
| |
| - Made cosmetic updates to the docs. |
| |
| -------------- |
| Version 2.28b: |
| -------------- |
| |
| - Added "life pro tips" to docs/. |
| |
| - Moved testcases/_extras/ to dictionaries/ for visibility. |
| |
| - Made minor improvements to install scripts. |
| |
| - Added an important safety tip. |
| |
| -------------- |
| Version 2.27b: |
| -------------- |
| |
| - Added libtokencap, a simple feature to intercept strcmp / memcmp and |
| generate dictionary entries that can help extend coverage. |
| |
| - Moved libdislocator to its own dir, added README. |
| |
| - The demo in experimental/instrumented_cmp is no more. |
| |
| -------------- |
| Version 2.26b: |
| -------------- |
| |
| - Made a fix for libdislocator.so to compile on MacOS X. |
| |
| - Added support for DYLD_INSERT_LIBRARIES. |
| |
| - Renamed AFL_LD_PRELOAD to AFL_PRELOAD. |
| |
| -------------- |
| Version 2.25b: |
| -------------- |
| |
| - Made some cosmetic updates to libdislocator.so, renamed one env |
| variable. |
| |
| -------------- |
| Version 2.24b: |
| -------------- |
| |
| - Added libdislocator.so, an experimental, abusive allocator. Try |
| it out with AFL_LD_PRELOAD=/path/to/libdislocator.so when running |
| afl-fuzz. |
| |
| -------------- |
| Version 2.23b: |
| -------------- |
| |
| - Improved the stability metric for persistent mode binaries. Problem |
| spotted by Kurt Roeckx. |
| |
| - Made a related improvement that may bring the metric to 100% for those |
| targets. |
| |
| -------------- |
| Version 2.22b: |
| -------------- |
| |
| - Mentioned the potential conflicts between MSAN / ASAN and FORTIFY_SOURCE. |
| There is no automated check for this, since some distros may implicitly |
| set FORTIFY_SOURCE outside of the compiler's argv[]. |
| |
| - Populated the support for AFL_LD_PRELOAD to all companion tools. |
| |
| - Made a change to the handling of ./afl-clang-fast -v. Spotted by |
| Jan Kneschke. |
| |
| -------------- |
| Version 2.21b: |
| -------------- |
| |
| - Added some crash reporting notes for Solaris in docs/INSTALL, as |
| investigated by Martin Carpenter. |
| |
| - Fixed a minor UI mix-up with havoc strategy stats. |
| |
| -------------- |
| Version 2.20b: |
| -------------- |
| |
| - Revamped the handling of variable paths, replacing path count with a |
| "stability" score to give users a much better signal. Based on the |
| feedback from Vegard Nossum. |
| |
| - Made a stability improvement to the syncing behavior with resuming |
| fuzzers. Based on the feedback from Vegard. |
| |
| - Changed the UI to include current input bitmap density along with |
| total density. Ditto. |
| |
| - Added experimental support for parallelizing -M. |
| |
| -------------- |
| Version 2.19b: |
| -------------- |
| |
| - Made a fix to make sure that auto CPU binding happens at non-overlapping |
| times. |
| |
| -------------- |
| Version 2.18b: |
| -------------- |
| |
| - Made several performance improvements to has_new_bits() and |
| classify_counts(). This should offer a robust performance bump with |
| fast targets. |
| |
| -------------- |
| Version 2.17b: |
| -------------- |
| |
| - Killed the error-prone and manual -Z option. On Linux, AFL will now |
| automatically bind to the first free core (or complain if there are no |
| free cores left). |
| |
| - Made some doc updates along these lines. |
| |
| -------------- |
| Version 2.16b: |
| -------------- |
| |
| - Improved support for older versions of clang (hopefully without |
| breaking anything). |
| |
| - Moved version data from Makefile to config.h. Suggested by |
| Jonathan Metzman. |
| |
| -------------- |
| Version 2.15b: |
| -------------- |
| |
| - Added a README section on looking for non-crashing bugs. |
| |
| - Added license data to several boring files. Contributed by |
| Jonathan Metzman. |
| |
| -------------- |
| Version 2.14b: |
| -------------- |
| |
| - Added FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION as a macro defined when |
| compiling with afl-gcc and friends. Suggested by Kostya Serebryany. |
| |
| - Refreshed some of the non-x86 docs. |
| |
| -------------- |
| Version 2.13b: |
| -------------- |
| |
| - Fixed a spurious build test error with trace-pc and llvm_mode/Makefile. |
| Spotted by Markus Teufelberger. |
| |
| - Fixed a cosmetic issue with afl-whatsup. Spotted by Brandon Perry. |
| |
| -------------- |
| Version 2.12b: |
| -------------- |
| |
| - Fixed a minor issue in afl-tmin that can make alphabet minimization less |
| efficient during passes > 1. Spotted by Daniel Binderman. |
| |
| -------------- |
| Version 2.11b: |
| -------------- |
| |
| - Fixed a minor typo in instrumented_cmp, spotted by Hanno Eissfeldt. |
| |
| - Added a missing size check for deterministic insertion steps. |
| |
| - Made an improvement to afl-gotcpu when -Z not used. |
| |
| - Fixed a typo in post_library_png.so.c in experimental/. Spotted by Kostya |
| Serebryany. |
| |
| -------------- |
| Version 2.10b: |
| -------------- |
| |
| - Fixed a minor core counting glitch, reported by Tyler Nighswander. |
| |
| -------------- |
| Version 2.09b: |
| -------------- |
| |
| - Made several documentation updates. |
| |
| - Added some visual indicators to promote and simplify the use of -Z. |
| |
| -------------- |
| Version 2.08b: |
| -------------- |
| |
| - Added explicit support for -m32 and -m64 for llvm_mode. Inspired by |
| a request from Christian Holler. |
| |
| - Added a new benchmarking option, as requested by Kostya Serebryany. |
| |
| -------------- |
| Version 2.07b: |
| -------------- |
| |
| - Added CPU affinity option (-Z) on Linux. With some caution, this can |
| offer a significant (10%+) performance bump and reduce jitter. |
| Proposed by Austin Seipp. |
| |
| - Updated afl-gotcpu to use CPU affinity where supported. |
| |
| - Fixed confusing CPU_TARGET error messages with QEMU build. Spotted by |
| Daniel Komaromy and others. |
| |
| -------------- |
| Version 2.06b: |
| -------------- |
| |
| - Worked around LLVM persistent mode hiccups with -shared code. |
| Contributed by Christian Holler. |
| |
| - Added __AFL_COMPILER as a convenient way to detect that something is |
| built under afl-gcc / afl-clang / afl-clang-fast and enable custom |
| optimizations in your code. Suggested by Pedro Corte-Real. |
| |
| - Upstreamed several minor changes developed by Franjo Ivancic to |
| allow AFL to be built as a library. This is fairly use-specific and |
| may have relatively little appeal to general audiences. |
| |
| -------------- |
| Version 2.05b: |
| -------------- |
| |
| - Put __sanitizer_cov_module_init & co behind #ifdef to avoid problems |
| with ASAN. Spotted by Christian Holler. |
| |
| -------------- |
| Version 2.04b: |
| -------------- |
| |
| - Removed indirect-calls coverage from -fsanitize-coverage (since it's |
| redundant). Spotted by Kostya Serebryany. |
| |
| -------------- |
| Version 2.03b: |
| -------------- |
| |
| - Added experimental -fsanitize-coverage=trace-pc support that goes with |
| some recent additions to LLVM, as implemented by Kostya Serebryany. |
| Right now, this is cumbersome to use with common build systems, so |
| the mode remains undocumented. |
| |
| - Made several substantial improvements to better support non-standard |
| map sizes in LLVM mode. |
| |
| - Switched LLVM mode to thread-local execution tracing, which may offer |
| better results in some multithreaded apps. |
| |
| - Fixed a minor typo, reported by Heiko Eissfeldt. |
| |
| - Force-disabled symbolization for ASAN, as suggested by Christian Holler. |
| |
| - AFL_NOX86 renamed to AFL_NO_X86 for consistency. |
| |
| - Added AFL_LD_PRELOAD to allow LD_PRELOAD to be set for targets without |
| affecting AFL itself. Suggested by Daniel Godas-Lopez. |
| |
| -------------- |
| Version 2.02b: |
| -------------- |
| |
| - Fixed a "lcamtuf can't count to 16" bug in the havoc stage. Reported |
| by Guillaume Endignoux. |
| |
| -------------- |
| Version 2.01b: |
| -------------- |
| |
| - Made an improvement to cycle counter color coding, based on feedback |
| from Shai Sarfaty. |
| |
| - Added a mention of aflize to sister_projects.txt. |
| |
| - Fixed an installation issue with afl-as, as spotted by ilovezfs. |
| |
| -------------- |
| Version 2.00b: |
| -------------- |
| |
| - Cleaned up color handling after a minor snafu in 1.99b (affecting some |
| terminals). |
| |
| - Made minor updates to the documentation. |
| |
| -------------- |
| Version 1.99b: |
| -------------- |
| |
| - Substantially revamped the output and the internal logic of afl-analyze. |
| |
| - Cleaned up some of the color handling code and added support for |
| background colors. |
| |
| - Removed some stray files (oops). |
| |
| - Updated docs to better explain afl-analyze. |
| |
| -------------- |
| Version 1.98b: |
| -------------- |
| |
| - Improved to "boring string" detection in afl-analyze. |
| |
| - Added technical_details.txt for afl-analyze. |
| |
| -------------- |
| Version 1.97b: |
| -------------- |
| |
| - Added afl-analyze, a nifty tool to analyze the structure of a file |
| based on the feedback from AFL instrumentation. This is kinda experimental, |
| so field reports welcome. |
| |
| - Added a mention of afl-cygwin. |
| |
| - Fixed a couple of typos, as reported by Jakub Wilk and others. |
| |
| -------------- |
| Version 1.96b: |
| -------------- |
| |
| - Added -fpic to CFLAGS for the clang plugin, as suggested by Hanno Boeck. |
| |
| - Made another clang change (IRBuilder) suggested by Jeff Trull. |
| |
| - Fixed several typos, spotted by Jakub Wilk. |
| |
| - Added support for AFL_SHUFFLE_QUEUE, based on discussions with |
| Christian Holler. |
| |
| -------------- |
| Version 1.95b: |
| -------------- |
| |
| - Fixed a harmless bug when handling -B. Spotted by Jacek Wielemborek. |
| |
| - Made the exit message a bit more accurate when AFL_EXIT_WHEN_DONE is set. |
| |
| - Added some error-checking for old-style forkserver syntax. Suggested by |
| Ben Nagy. |
| |
| - Switched from exit() to _exit() in injected code to avoid snafus with |
| destructors in C++ code. Spotted by sunblate. |
| |
| - Made a change to avoid spuriously setting __AFL_SHM_ID when |
| AFL_DUMB_FORKSRV is set in conjunction with -n. Spotted by Jakub Wilk. |
| |
| -------------- |
| Version 1.94b: |
| -------------- |
| |
| - Changed allocator alignment to improve support for non-x86 systems (now |
| that llvm_mode makes this more feasible). |
| |
| - Fixed a minor typo in afl-cmin. Spotted by Jonathan Neuschafer. |
| |
| - Fixed an obscure bug that would affect people trying to use afl-gcc |
| with $TMP set but $TMPDIR absent. Spotted by Jeremy Barnes. |
| |
| -------------- |
| Version 1.93b: |
| -------------- |
| |
| - Hopefully fixed a problem with MacOS X and persistent mode, spotted by |
| Leo Barnes. |
| |
| -------------- |
| Version 1.92b: |
| -------------- |
| |
| - Made yet another C++ fix (namespaces). Reported by Daniel Lockyer. |
| |
| -------------- |
| Version 1.91b: |
| -------------- |
| |
| - Made another fix to make 1.90b actually work properly with C++ (d'oh). |
| Problem spotted by Daniel Lockyer. |
| |
| -------------- |
| Version 1.90b: |
| -------------- |
| |
| - Fixed a minor typo spotted by Kai Zhao; and made several other minor updates |
| to docs. |
| |
| - Updated the project URL for python-afl. Requested by Jakub Wilk. |
| |
| - Fixed a potential problem with deferred mode signatures getting optimized |
| out by the linker (with --gc-sections). |
| |
| -------------- |
| Version 1.89b: |
| -------------- |
| |
| - Revamped the support for persistent and deferred forkserver modes. |
| Both now feature simpler syntax and do not require companion env |
| variables. Suggested by Jakub Wilk. |
| |
| - Added a bit more info about afl-showmap. Suggested by Jacek Wielemborek. |
| |
| -------------- |
| Version 1.88b: |
| -------------- |
| |
| - Made AFL_EXIT_WHEN_DONE work in non-tty mode. Issue spotted by |
| Jacek Wielemborek. |
| |
| -------------- |
| Version 1.87b: |
| -------------- |
| |
| - Added QuickStartGuide.txt, a one-page quick start doc. |
| |
| - Fixed several typos spotted by Dominique Pelle. |
| |
| - Revamped several parts of README. |
| |
| -------------- |
| Version 1.86b: |
| -------------- |
| |
| - Added support for AFL_SKIP_CRASHES, which is a very hackish solution to |
| the problem of resuming sessions with intermittently crashing inputs. |
| |
| - Removed the hard-fail terminal size check, replaced with a dynamic |
| warning shown in place of the UI. Based on feedback from Christian Holler. |
| |
| - Fixed a minor typo in show_stats. Spotted by Dingbao Xie. |
| |
| -------------- |
| Version 1.85b: |
| -------------- |
| |
| - Fixed a garbled sentence in notes on parallel fuzzing. Thanks to Jakub Wilk. |
| |
| - Fixed a minor glitch in afl-cmin. Spotted by Jonathan Foote. |
| |
| -------------- |
| Version 1.84b: |
| -------------- |
| |
| - Made SIMPLE_FILES behave as expected when naming backup directories for |
| crashes and hangs. |
| |
| - Added the total number of favored paths to fuzzer_stats. Requested by |
| Ben Nagy. |
| |
| - Made afl-tmin, afl-fuzz, and afl-cmin reject negative values passed to |
| -t and -m, since they generally won't work as expected. |
| |
| - Made a fix for no lahf / sahf support on older versions of FreeBSD. |
| Patch contributed by Alex Moneger. |
| |
| -------------- |
| Version 1.83b: |
| -------------- |
| |
| - Fixed a problem with xargs -d on non-Linux systems in afl-cmin. Spotted by |
| teor2345 and Ben Nagy. |
| |
| - Fixed an implicit declaration in LLVM mode on MacOS X. Reported by |
| Kai Zhao. |
| |
| -------------- |
| Version 1.82b: |
| -------------- |
| |
| - Fixed a harmless but annoying race condition in persistent mode - signal |
| delivery is a bit more finicky than I thought. |
| |
| - Updated the documentation to explain persistent mode a bit better. |
| |
| - Tweaked AFL_PERSISTENT to force AFL_NO_VAR_CHECK. |
| |
| -------------- |
| Version 1.81b: |
| -------------- |
| |
| - Added persistent mode for in-process fuzzing. See llvm_mode/README.llvm. |
| Inspired by Kostya Serebryany and Christian Holler. |
| |
| - Changed the in-place resume code to preserve crashes/README.txt. Suggested |
| by Ben Nagy. |
| |
| - Included a potential fix for LLVM mode issues on MacOS X, based on the |
| investigation done by teor2345. |
| |
| -------------- |
| Version 1.80b: |
| -------------- |
| |
| - Made afl-cmin tolerant of whitespaces in filenames. Suggested by |
| Jonathan Neuschafer and Ketil Froyn. |
| |
| - Added support for AFL_EXIT_WHEN_DONE, as suggested by Michael Rash. |
| |
| -------------- |
| Version 1.79b: |
| -------------- |
| |
| - Added support for dictionary levels, see testcases/README.testcases. |
| |
| - Reworked the SQL dictionary to use levels. |
| |
| - Added a note about Preeny. |
| |
| -------------- |
| Version 1.78b: |
| -------------- |
| |
| - Added a dictionary for PDF, contributed by Ben Nagy. |
| |
| - Added several references to afl-cov, a new tool by Michael Rash. |
| |
| - Fixed a problem with crash reporter detection on MacOS X, as reported by |
| Louis Dassy. |
| |
| -------------- |
| Version 1.77b: |
| -------------- |
| |
| - Extended the -x option to support single-file dictionaries. |
| |
| - Replaced factory-packaged dictionaries with file-based variants. |
| |
| - Removed newlines from HTML keywords in testcases/_extras/html/. |
| |
| -------------- |
| Version 1.76b: |
| -------------- |
| |
| - Very significantly reduced the number of duplicate execs during |
| deterministic checks, chiefly in int16 and int32 stages. Confirmed |
| identical path yields. This should improve early-stage efficiency by |
| around 5-10%. |
| |
| - Reduced the likelihood of duplicate non-deterministic execs by |
| bumping up lowest stacking factor from 1 to 2. Quickly confirmed |
| that this doesn't seem to have significant impact on coverage with |
| libpng. |
| |
| - Added a note about integrating afl-fuzz with third-party tools. |
| |
| -------------- |
| Version 1.75b: |
| -------------- |
| |
| - Improved argv_fuzzing to allow it to emit empty args. Spotted by Jakub |
| Wilk. |
| |
| - afl-clang-fast now defines __AFL_HAVE_MANUAL_INIT. Suggested by Jakub Wilk. |
| |
| - Fixed a libtool-related bug with afl-clang-fast that would make some |
| ./configure invocations generate incorrect output. Spotted by Jakub Wilk. |
| |
| - Removed flock() on Solaris. This means no locking on this platform, |
| but so be it. Problem reported by Martin Carpenter. |
| |
| - Fixed a typo. Reported by Jakub Wilk. |
| |
| -------------- |
| Version 1.74b: |
| -------------- |
| |
| - Added an example argv[] fuzzing wrapper in experimental/argv_fuzzing. |
| Reworked the bash example to be faster, too. |
| |
| - Clarified llvm_mode prerequisites for FreeBSD. |
| |
| - Improved afl-tmin to use /tmp if cwd is not writeable. |
| |
| - Removed redundant includes for sys/fcntl.h, which caused warnings with |
| some nitpicky versions of libc. |
| |
| - Added a corpus of basic HTML tags that parsers are likely to pay attention |
| to (no attributes). |
| |
| - Added EP_EnabledOnOptLevel0 to llvm_mode, so that the instrumentation is |
| inserted even when AFL_DONT_OPTIMIZE=1 is set. |
| |
| - Switched qemu_mode to use the newly-released QEMU 2.3.0, which contains |
| a couple of minor bugfixes. |
| |
| -------------- |
| Version 1.73b: |
| -------------- |
| |
| - Fixed a pretty stupid bug in effector maps that could sometimes cause |
| AFL to fuzz slightly more than necessary; and in very rare circumstances, |
| could lead to SEGV if eff_map is aligned with page boundary and followed |
| by an unmapped page. Spotted by Jonathan Gray. |
| |
| -------------- |
| Version 1.72b: |
| -------------- |
| |
| - Fixed a glitch in non-x86 install, spotted by Tobias Ospelt. |
| |
| - Added a minor safeguard to llvm_mode Makefile following a report from |
| Kai Zhao. |
| |
| -------------- |
| Version 1.71b: |
| -------------- |
| |
| - Fixed a bug with installed copies of AFL trying to use QEMU mode. Spotted |
| by G.M. Lime. |
| |
| - Added last path / crash / hang times to fuzzer_stats, suggested by |
| Richard Hipp. |
| |
| - Fixed a typo, thanks to Jakub Wilk. |
| |
| -------------- |
| Version 1.70b: |
| -------------- |
| |
| - Modified resumption code to reuse the original timeout value when resuming |
| a session if -t is not given. This prevents timeout creep in continuous |
| fuzzing. |
| |
| - Added improved error messages for failed handshake when AFL_DEFER_FORKSRV |
| is set. |
| |
| - Made a slight improvement to llvm_mode/Makefile based on feedback from |
| Jakub Wilk. |
| |
| - Refreshed several bits of documentation. |
| |
| - Added a more prominent note about the MacOS X trade-offs to Makefile. |
| |
| -------------- |
| Version 1.69b: |
| -------------- |
| |
| - Added support for deferred initialization in LLVM mode. Suggested by |
| Richard Godbee. |
| |
| -------------- |
| Version 1.68b: |
| -------------- |
| |
| - Fixed a minor PRNG glitch that would make the first seconds of a fuzzing |
| job deterministic. Thanks to Andreas Stieger. |
| |
| - Made tmp[] static in the LLVM runtime to keep Valgrind happy (this had |
| no impact on anything else). Spotted by Richard Godbee. |
| |
| - Clarified the footnote in README. |
| |
| -------------- |
| Version 1.67b: |
| -------------- |
| |
| - Made one more correction to llvm_mode Makefile, spotted by Jakub Wilk. |
| |
| -------------- |
| Version 1.66b: |
| -------------- |
| |
| - Added CC / CXX support to llvm_mode Makefile. Requested by Charlie Eriksen. |
| |
| - Fixed 'make clean' with gmake. Suggested by Oliver Schneider. |
| |
| - Fixed 'make -j n clean all'. Suggested by Oliver Schneider. |
| |
| - Removed build date and time from banners to give people deterministic |
| builds. Requested by Jakub Wilk. |
| |
| -------------- |
| Version 1.65b: |
| -------------- |
| |
| - Fixed a snafu with some leftover code in afl-clang-fast. |
| |
| - Corrected even moar typos. |
| |
| -------------- |
| Version 1.64b: |
| -------------- |
| |
| - Further simplified afl-clang-fast runtime by reverting .init_array to |
| __attribute__((constructor(0)). This should improve compatibility with |
| non-ELF platforms. |
| |
| - Fixed a problem with afl-clang-fast and -shared libraries. Simplified |
| the code by getting rid of .preinit_array and replacing it with a .comm |
| object. Problem reported by Charlie Eriksen. |
| |
| - Removed unnecessary instrumentation density adjustment for the LLVM mode. |
| Reported by Jonathan Neuschafer. |
| |
| -------------- |
| Version 1.63b: |
| -------------- |
| |
| - Updated cgroups_asan/ with a new version from Sam, made a couple changes |
| to streamline it and keep parallel afl instances in separate groups. |
| |
| - Fixed typos, thanks to Jakub Wilk. |
| |
| -------------- |
| Version 1.62b: |
| -------------- |
| |
| - Improved the handling of -x in afl-clang-fast, |
| |
| - Improved the handling of low AFL_INST_RATIO settings for QEMU and |
| LLVM modes. |
| |
| - Fixed the llvm-config bug for good (thanks to Tobias Ospelt). |
| |
| -------------- |
| Version 1.61b: |
| -------------- |
| |
| - Fixed an obscure bug compiling OpenSSL with afl-clang-fast. Patch by |
| Laszlo Szekeres. |
| |
| - Fixed a 'make install' bug on non-x86 systems, thanks to Tobias Ospelt. |
| |
| - Fixed a problem with half-broken llvm-config on Odroid, thanks to |
| Tobias Ospelt. (There is another odd bug there that hasn't been fully |
| fixed - TBD). |
| |
| -------------- |
| Version 1.60b: |
| -------------- |
| |
| - Allowed experimental/llvm_instrumentation/ to graduate to llvm_mode/. |
| |
| - Removed experimental/arm_support/, since it's completely broken and likely |
| unnecessary with LLVM support in place. |
| |
| - Added ASAN cgroups script to experimental/asan_cgroups/, updated existing |
| docs. Courtesy Sam Hakim and David A. Wheeler. |
| |
| - Refactored afl-tmin to reduce the number of execs in common use cases. |
| Ideas from Jonathan Neuschafer and Turo Lamminen. |
| |
| - Added a note about CLAs at the bottom of README. |
| |
| - Renamed testcases_readme.txt to README.testcases for some semblance of |
| consistency. |
| |
| - Made assorted updates to docs. |
| |
| - Added MEM_BARRIER() to afl-showmap and afl-tmin, just to be safe. |
| |
| -------------- |
| Version 1.59b: |
| -------------- |
| |
| - Imported Laszlo Szekeres' experimental LLVM instrumentation into |
| experimental/llvm_instrumentation. I'll work on including it in the |
| "mainstream" version soon. |
| |
| - Fixed another typo, thanks to Jakub Wilk. |
| |
| -------------- |
| Version 1.58b: |
| -------------- |
| |
| - Added a workaround for abort() behavior in -lpthread programs in QEMU mode. |
| Spotted by Aidan Thornton. |
| |
| - Made several documentation updates, including links to the static |
| instrumentation tool (sister_projects.txt). |
| |
| -------------- |
| Version 1.57b: |
| -------------- |
| |
| - Fixed a problem with exception handling on some versions of MacOS X. |
| Spotted by Samir Aguiar and Anders Wang Kristensen. |
| |
| - Tweaked afl-gcc to use BIN_PATH instead of a fixed string in help |
| messages. |
| |
| -------------- |
| Version 1.56b: |
| -------------- |
| |
| - Renamed related_work.txt to historical_notes.txt. |
| |
| - Made minor edits to the ASAN doc. |
| |
| - Added docs/sister_projects.txt with a list of inspired or closely |
| related utilities. |
| |
| -------------- |
| Version 1.55b: |
| -------------- |
| |
| - Fixed a glitch with afl-showmap opening /dev/null with O_RDONLY when |
| running in quiet mode. Spotted by Tyler Nighswander. |
| |
| -------------- |
| Version 1.54b: |
| -------------- |
| |
| - Added another postprocessor example for PNG. |
| |
| - Made a cosmetic fix to realloc() handling in experimental/post_library/, |
| suggested by Jakub Wilk. |
| |
| - Improved -ldl handling. Suggested by Jakub Wilk. |
| |
| -------------- |
| Version 1.53b: |
| -------------- |
| |
| - Fixed an -l ordering issue that is apparently still a problem on Ubuntu. |
| Spotted by William Robinet. |
| |
| -------------- |
| Version 1.52b: |
| -------------- |
| |
| - Added support for file format postprocessors. Requested by Ben Nagy. This |
| feature is intentionally buried, since it's fairly easy to misuse and |
| useful only in some scenarios. See experimental/post_library/. |
| |
| -------------- |
| Version 1.51b: |
| -------------- |
| |
| - Made it possible to properly override LD_BIND_NOW after one very unusual |
| report of trouble. |
| |
| - Cleaned up typos, thanks to Jakub Wilk. |
| |
| - Fixed a bug in AFL_DUMB_FORKSRV. |
| |
| -------------- |
| Version 1.50b: |
| -------------- |
| |
| - Fixed a flock() bug that would prevent dir reuse errors from kicking |
| in every now and then. |
| |
| - Renamed references to ppvm (the project is now called recidivm). |
| |
| - Made improvements to file descriptor handling to avoid leaving some fds |
| unnecessarily open in the child process. |
| |
| - Fixed a typo or two. |
| |
| -------------- |
| Version 1.49b: |
| -------------- |
| |
| - Added code to save original command line in fuzzer_stats and |
| crashes/README.txt. Also saves fuzzer version in fuzzer_stats. |
| Requested by Ben Nagy. |
| |
| -------------- |
| Version 1.48b: |
| -------------- |
| |
| - Fixed a bug with QEMU fork server crashes when translation is attempted |
| after a jump to an invalid pointer in the child process (i.e., after |
| bumping into a particularly nasty security bug in the tested binary). |
| Reported by Tyler Nighswander. |
| |
| -------------- |
| Version 1.47b: |
| -------------- |
| |
| - Fixed a bug with afl-cmin in -Q mode complaining about binary being not |
| instrumented. Thanks to Jonathan Neuschafer for the bug report. |
| |
| - Fixed another bug with argv handling for afl-fuzz in -Q mode. Reported |
| by Jonathan Neuschafer. |
| |
| - Improved the use of colors when showing crash counts in -C mode. |
| |
| -------------- |
| Version 1.46b: |
| -------------- |
| |
| - Improved instrumentation performance on 32-bit systems by getting rid of |
| xor-swap (oddly enough, xor-swap is still faster on 64-bit) and tweaking |
| alignment. |
| |
| - Made path depth numbers more accurate with imported test cases. |
| |
| -------------- |
| Version 1.45b: |
| -------------- |
| |
| - Added support for SIMPLE_FILES in config.h for folks who don't like |
| descriptive file names. Generates very simple names without colons, |
| commas, plus signs, dashes, etc. |
| |
| - Replaced zero-sized files with symlinks in the variable behavior state |
| dir to simplify examining the relevant test cases. |
| |
| - Changed the period of limited-range block ops from 5 to 10 minutes based |
| on a couple of experiments. The basic goal of this delay timer behavior |
| is to better support jobs that are seeded with completely invalid files, |
| in which case, the first few queue cycles may be completed very quickly |
| without discovering new paths. Should have no effect on well-seeded jobs. |
| |
| - Made several minor updates to docs. |
| |
| -------------- |
| Version 1.44b: |
| -------------- |
| |
| - Corrected two bungled attempts to get the -C mode work properly |
| with afl-cmin (accounting for the short-lived releases tagged 1.42 and |
| 1.43b) - sorry. |
| |
| - Removed AFL_ALLOW_CRASHES in favor of the -C mode in said tool. |
| |
| - Said goodbye to Hello Kitty, as requested by Padraig Brady. |
| |
| -------------- |
| Version 1.41b: |
| -------------- |
| |
| - Added AFL_ALLOW_CRASHES=1 to afl-cmin. Allows crashing inputs in the |
| output corpus. Changed the default behavior to disallow it. |
| |
| - Made the afl-cmin output dir default to 0700, not 0755, to be consistent |
| with afl-fuzz; documented the rationale for 0755 in afl-plot. |
| |
| - Lowered the output dir reuse time limit to 25 minutes as a dice-roll |
| compromise after a discussion on afl-users@. |
| |
| - Made afl-showmap accept -o /dev/null without borking out. |
| |
| - Added support for crash / hang info in exit codes of afl-showmap. |
| |
| - Tweaked block operation scaling to also factor in ballpark run time |
| in cases where queue passes take very little time. |
| |
| - Fixed typos and made improvements to several docs. |
| |
| -------------- |
| Version 1.40b: |
| -------------- |
| |
| - Switched to smaller block op sizes during the first passes over the |
| queue. Helps keep test cases small. |
| |
| - Added memory barrier for run_target(), just in case compilers get |
| smarter than they are today. |
| |
| - Updated a bunch of docs. |
| |
| -------------- |
| Version 1.39b: |
| -------------- |
| |
| - Added the ability to skip inputs by sending SIGUSR1 to the fuzzer. |
| |
| - Reworked several portions of the documentation. |
| |
| - Changed the code to reset splicing perf scores between runs to keep |
| them closer to intended length. |
| |
| - Reduced the minimum value of -t to 5 for afl-fuzz (~200 exec/sec) |
| and to 10 for auxiliary tools (due to the absence of a fork server). |
| |
| - Switched to more aggressive default timeouts (rounded up to 25 ms |
| versus 50 ms - ~40 execs/sec) and made several other cosmetic changes |
| to the timeout code. |
| |
| -------------- |
| Version 1.38b: |
| -------------- |
| |
| - Fixed a bug in the QEMU build script, spotted by William Robinet. |
| |
| - Improved the reporting of skipped bitflips to keep the UI counters a bit |
| more accurate. |
| |
| - Cleaned up related_work.txt and added some non-goals. |
| |
| - Fixed typos, thanks to Jakub Wilk. |
| |
| -------------- |
| Version 1.37b: |
| -------------- |
| |
| - Added effector maps, which detect regions that do not seem to respond |
| to bitflips and subsequently exclude them from more expensive steps |
| (arithmetics, known ints, etc). This should offer significant performance |
| improvements with quite a few types of text-based formats, reducing the |
| number of deterministic execs by a factor of 2 or so. |
| |
| - Cleaned up mem limit handling in afl-cmin. |
| |
| - Switched from uname -i to uname -m to work around Gentoo-specific |
| issues with coreutils when building QEMU. Reported by William Robinet. |
| |
| - Switched from PID checking to flock() to detect running sessions. |
| Problem, against all odds, bumped into by Jakub Wilk. |
| |
| - Added SKIP_COUNTS and changed the behavior of COVERAGE_ONLY in config.h. |
| Useful only for internal benchmarking. |
| |
| - Made improvements to UI refresh rates and exec/sec stats to make them |
| more stable. |
| |
| - Made assorted improvements to the documentation and to the QEMU build |
| script. |
| |
| - Switched from perror() to strerror() in error macros, thanks to Jakub |
| Wilk for the nag. |
| |
| - Moved afl-cmin back to bash, wasn't thinking straight. It has to stay |
| on bash because other shells may have restrictive limits on array sizes. |
| |
| -------------- |
| Version 1.36b: |
| -------------- |
| |
| - Switched afl-cmin over to /bin/sh. Thanks to Jonathan Gray. |
| |
| - Fixed an off-by-one bug in queue limit check when resuming sessions |
| (could cause NULL ptr deref if you are *really* unlucky). |
| |
| - Fixed the QEMU script to tolerate i686 if returned by uname -i. Based on |
| a problem report from Sebastien Duquette. |
| |
| - Added multiple references to Jakub's ppvm tool. |
| |
| - Made several minor improvements to the Makefile. |
| |
| - Believe it or not, fixed some typos. Thanks to Jakub Wilk. |
| |
| -------------- |
| Version 1.35b: |
| -------------- |
| |
| - Cleaned up regular expressions in some of the scripts to avoid errors |
| on *BSD systems. Spotted by Jonathan Gray. |
| |
| -------------- |
| Version 1.34b: |
| -------------- |
| |
| - Performed a substantial documentation and program output cleanup to |
| better explain the QEMU feature. |
| |
| -------------- |
| Version 1.33b: |
| -------------- |
| |
| - Added support for AFL_INST_RATIO and AFL_INST_LIBS in the QEMU mode. |
| |
| - Fixed a stack allocation crash in QEMU mode (bug in QEMU, fixed with |
| an extra patch applied to the downloaded release). |
| |
| - Added code to test the QEMU instrumentation once the afl-qemu-trace |
| binary is built. |
| |
| - Modified afl-tmin and afl-showmap to search $PATH for binaries and to |
| better handle QEMU support. |
| |
| - Added a check for instrumented binaries when passing -Q to afl-fuzz. |
| |
| -------------- |
| Version 1.32b: |
| -------------- |
| |
| - Fixed 'make install' following the QEMU changes. Spotted by Hanno Boeck. |
| |
| - Fixed EXTRA_PAR handling in afl-cmin. |
| |
| -------------- |
| Version 1.31b: |
| -------------- |
| |
| - Hallelujah! Thanks to Andrew Griffiths, we now support very fast, black-box |
| instrumentation of binary-only code. See qemu_mode/README.qemu. |
| |
| To use this feature, you need to follow the instructions in that |
| directory and then run afl-fuzz with -Q. |
| |
| -------------- |
| Version 1.30b: |
| -------------- |
| |
| - Added -s (summary) option to afl-whatsup. Suggested by Jodie Cunningham. |
| |
| - Added a sanity check in afl-tmin to detect minimization to zero len or |
| excess hangs. |
| |
| - Fixed alphabet size counter in afl-tmin. |
| |
| - Slightly improved the handling of -B in afl-fuzz. |
| |
| - Fixed process crash messages with -m none. |
| |
| -------------- |
| Version 1.29b: |
| -------------- |
| |
| - Improved the naming of test cases when orig: is already present in the file |
| name. |
| |
| - Made substantial improvements to technical_details.txt. |
| |
| -------------- |
| Version 1.28b: |
| -------------- |
| |
| - Made a minor tweak to the instrumentation to preserve the directionality |
| of tuples (i.e., A -> B != B -> A) and to maintain the identity of tight |
| loops (A -> A). You need to recompile targeted binaries to leverage this. |
| |
| - Cleaned up some of the afl-whatsup stats. |
| |
| - Added several sanity checks to afl-cmin. |
| |
| -------------- |
| Version 1.27b: |
| -------------- |
| |
| - Made afl-tmin recursive. Thanks to Hanno Boeck for the tip. |
| |
| - Added docs/technical_details.txt. |
| |
| - Changed afl-showmap search strategy in afl-cmap to just look into the |
| same place that afl-cmin is executed from. Thanks to Jakub Wilk. |
| |
| - Removed current_todo.txt and cleaned up the remaining docs. |
| |
| -------------- |
| Version 1.26b: |
| -------------- |
| |
| - Added total execs/sec stat for afl-whatsup. |
| |
| - afl-cmin now auto-selects between cp or ln. Based on feedback from |
| Even Huus. |
| |
| - Fixed a typo. Thanks to Jakub Wilk. |
| |
| - Made afl-gotcpu a bit more accurate by using getrusage instead of |
| times. Thanks to Jakub Wilk. |
| |
| - Fixed a memory limit issue during the build process on NetBSD-current. |
| Reported by Thomas Klausner. |
| |
| -------------- |
| Version 1.25b: |
| -------------- |
| |
| - Introduced afl-whatsup, a simple tool for querying the status of |
| local synced instances of afl-fuzz. |
| |
| - Added -x compiler to clang options on Darwin. Suggested by Filipe |
| Cabecinhas. |
| |
| - Improved exit codes for afl-gotcpu. |
| |
| - Improved the checks for -m and -t values in afl-cmin. Bug report |
| from Evan Huus. |
| |
| -------------- |
| Version 1.24b: |
| -------------- |
| |
| - Introduced afl-getcpu, an experimental tool to empirically measure |
| CPU preemption rates. Thanks to Jakub Wilk for the idea. |
| |
| -------------- |
| Version 1.23b: |
| -------------- |
| |
| - Reverted one change to afl-cmin that actually made it slower. |
| |
| -------------- |
| Version 1.22b: |
| -------------- |
| |
| - Reworked afl-showmap.c to support normal options, including -o, -q, |
| -e. Also added support for timeouts and memory limits. |
| |
| - Made changes to afl-cmin and other scripts to accommodate the new |
| semantics. |
| |
| - Officially retired AFL_EDGES_ONLY. |
| |
| - Fixed another typo in afl-tmin, courtesy of Jakub Wilk. |
| |
| -------------- |
| Version 1.21b: |
| -------------- |
| |
| - Graduated minimize_corpus.sh to afl-cmin. It is now a first-class |
| utility bundled with the fuzzer. |
| |
| - Made significant improvements to afl-cmin to make it faster, more |
| robust, and more versatile. |
| |
| - Refactored some of afl-tmin code to make it a bit more readable. |
| |
| - Made assorted changes to the doc to document afl-cmin and other stuff. |
| |
| -------------- |
| Version 1.20b: |
| -------------- |
| |
| - Added AFL_DUMB_FORKSRV, as requested by Jakub Wilk. This works only |
| in -n mode and allows afl-fuzz to run with "dummy" fork servers that |
| don't output any instrumentation, but follow the same protocol. |
| |
| - Renamed AFL_SKIP_CHECKS to AFL_SKIP_BIN_CHECK to make it at least |
| somewhat descriptive. |
| |
| - Switched to using clang as the default assembler on MacOS X to work |
| around Xcode issues with newer builds of clang. Testing and patch by |
| Nico Weber. |
| |
| - Fixed a typo (via Jakub Wilk). |
| |
| -------------- |
| Version 1.19b: |
| -------------- |
| |
| - Improved exec failure detection in afl-fuzz and afl-showmap. |
| |
| - Improved Ctrl-C handling in afl-showmap. |
| |
| - Added afl-tmin, a handy instrumentation-enabled minimizer. |
| |
| -------------- |
| Version 1.18b: |
| -------------- |
| |
| - Fixed a serious but short-lived bug in the resumption behavior introduced |
| in version 1.16b. |
| |
| - Added -t nn+ mode for soft-skipping timing-out paths. |
| |
| -------------- |
| Version 1.17b: |
| -------------- |
| |
| - Fixed a compiler warning introduced in 1.16b for newer versions of GCC. |
| Thanks to Jakub Wilk and Ilfak Guilfanov. |
| |
| - Improved the consistency of saving fuzzer_stats, bitmap info, and |
| auto-dictionaries when aborting fuzzing sessions. |
| |
| - Made several noticeable performance improvements to deterministic arith |
| and known int steps. |
| |
| -------------- |
| Version 1.16b: |
| -------------- |
| |
| - Added a bit of code to make resumption pick up from the last known |
| offset in the queue, rather than always rewinding to the start. Suggested |
| by Jakub Wilk. |
| |
| - Switched to tighter timeout control for slow programs (3x rather than |
| 5x average exec speed at init). |
| |
| -------------- |
| Version 1.15b: |
| -------------- |
| |
| - Added support for AFL_NO_VAR_CHECK to speed up resumption and inhibit |
| variable path warnings for some programs. |
| |
| - Made the trimmer run even for variable paths, since there is no special |
| harm in doing so and it can be very beneficial if the trimming still |
| pans out. |
| |
| - Made the UI a bit more descriptive by adding "n/a" instead of "0" in a |
| couple of corner cases. |
| |
| -------------- |
| Version 1.14b: |
| -------------- |
| |
| - Added a (partial) dictionary for JavaScript. |
| |
| - Added AFL_NO_CPU_RED, as suggested by Jakub Wilk. |
| |
| - Tweaked the havoc scaling logic added in 1.12b. |
| |
| -------------- |
| Version 1.13b: |
| -------------- |
| |
| - Improved the performance of minimize_corpus.sh by switching to a |
| sort-based approach. |
| |
| - Made several minor revisions to the docs. |
| |
| -------------- |
| Version 1.12b: |
| -------------- |
| |
| - Made an improvement to dictionary generation to avoid runs of identical |
| bytes. |
| |
| - Added havoc cycle scaling to help with slow binaries in -d mode. Based on |
| a thread with Sami Liedes. |
| |
| - Added AFL_SYNC_FIRST for afl-fuzz. This is useful for those who obsess |
| over stats, no special purpose otherwise. |
| |
| - Switched to more robust box drawing codes, suggested by Jakub Wilk. |
| |
| - Created faster 64-bit variants of several critical-path bitmap functions |
| (sorry, no difference on 32 bits). |
| |
| - Fixed moar typos, as reported by Jakub Wilk. |
| |
| -------------- |
| Version 1.11b: |
| -------------- |
| |
| - Added a bit more info about dictionary strategies to the status screen. |
| |
| -------------- |
| Version 1.10b: |
| -------------- |
| |
| - Revised the dictionary behavior to use insertion and overwrite in |
| deterministic steps, rather than just the latter. This improves coverage |
| with SQL and the like. |
| |
| - Added a mention of "*" in status_screen.txt, as suggested by Jakub Wilk. |
| |
| -------------- |
| Version 1.09b: |
| -------------- |
| |
| - Corrected a cosmetic problem with 'extras' stage count not always being |
| accurate in the stage yields view. |
| |
| - Fixed a typo reported by Jakub Wilk and made some minor documentation |
| improvements. |
| |
| -------------- |
| Version 1.08b: |
| -------------- |
| |
| - Fixed a div-by-zero bug in the newly-added code when using a dictionary. |
| |
| -------------- |
| Version 1.07b: |
| -------------- |
| |
| - Added code that automatically finds and extracts syntax tokens from the |
| input corpus. |
| |
| - Fixed a problem with ld dead-code removal option on MacOS X, reported |
| by Filipe Cabecinhas. |
| |
| - Corrected minor typos spotted by Jakub Wilk. |
| |
| - Added a couple of more exotic archive format samples. |
| |
| -------------- |
| Version 1.06b: |
| -------------- |
| |
| - Switched to slightly more accurate (if still not very helpful) reporting |
| of short read and short write errors. These theoretically shouldn't happen |
| unless you kill the forkserver or run out of disk space. Suggested by |
| Jakub Wilk. |
| |
| - Revamped some of the allocator and debug code, adding comments and |
| cleaning up other mess. |
| |
| - Tweaked the odds of fuzzing non-favored test cases to make sure that |
| baseline coverage of all inputs is reached sooner. |
| |
| -------------- |
| Version 1.05b: |
| -------------- |
| |
| - Added a dictionary for WebP. |
| |
| - Made some additional performance improvements to minimize_corpus.sh, |
| getting deeper into the bash woods. |
| |
| -------------- |
| Version 1.04b: |
| -------------- |
| |
| - Made substantial performance improvements to minimize_corpus.sh with |
| large datasets, albeit at the expense of having to switch back to bash |
| (other shells may have limits on array sizes, etc). |
| |
| - Tweaked afl-showmap to support the format used by the new script. |
| |
| -------------- |
| Version 1.03b: |
| -------------- |
| |
| - Added code to skip README.txt in the input directory to make the crash |
| exploration mode work better. Suggested by Jakub Wilk. |
| |
| - Added a dictionary for SQLite. |
| |
| -------------- |
| Version 1.02b: |
| -------------- |
| |
| - Reverted the ./ search path in minimize_corpus.sh because people did |
| not like it. |
| |
| - Added very explicit warnings not to run various shell scripts that |
| read or write to /tmp/ (since this is generally a pretty bad idea on |
| multi-user systems). |
| |
| - Added a check for /tmp binaries and -f locations in afl-fuzz. |
| |
| -------------- |
| Version 1.01b: |
| -------------- |
| |
| - Added dictionaries for XML and GIF. |
| |
| -------------- |
| Version 1.00b: |
| -------------- |
| |
| - Slightly improved the performance of minimize_corpus.sh, especially on |
| Linux. |
| |
| - Made a couple of improvements to calibration timeouts for resumed scans. |
| |
| -------------- |
| Version 0.99b: |
| -------------- |
| |
| - Fixed minimize_corpus.sh to work with dash, as suggested by Jakub Wilk. |
| |
| - Modified minimize_corpus.sh to try locate afl-showmap in $PATH and ./. |
| The first part requested by Jakub Wilk. |
| |
| - Added support for afl-as --version, as required by one funky build |
| script. Reported by William Robinet. |
| |
| -------------- |
| Version 0.98b: |
| -------------- |
| |
| - Added a dictionary for TIFF. |
| |
| - Fixed another cosmetic snafu with stage exec counts for -x. |
| |
| - Switched afl-plot to /bin/sh, since it seems bashism-free. Also tried |
| to remove any obvious bashisms from other experimental/ scripts, |
| most notably including minimize_corpus.sh and triage_crashes.sh. |
| Requested by Jonathan Gray. |
| |
| -------------- |
| Version 0.97b: |
| -------------- |
| |
| - Fixed cosmetic issues around the naming of -x strategy files. |
| |
| - Added a dictionary for JPEG. |
| |
| - Fixed a very rare glitch when running instrumenting 64-bit code that makes |
| heavy use of xmm registers that are also touched by glibc. |
| |
| -------------- |
| Version 0.96b: |
| -------------- |
| |
| - Added support for extra dictionaries, provided testcases/_extras/png/ |
| as a demo. |
| |
| - Fixed a minor bug in number formatting routines used by the UI. |
| |
| - Added several additional PNG test cases that are relatively unlikely |
| to be hit by chance. |
| |
| - Fixed afl-plot syntax for gnuplot 5.x. Reported by David Necas. |
| |
| -------------- |
| Version 0.95b: |
| -------------- |
| |
| - Cleaned up the OSX ReportCrash code. Thanks to Tobias Ospelt for help. |
| |
| - Added some extra tips for AFL_NO_FORKSERVER on OSX. |
| |
| - Refreshed the INSTALL file. |
| |
| -------------- |
| Version 0.94b: |
| -------------- |
| |
| - Added in-place resume (-i-) to address a common user complaint. |
| |
| - Added an awful workaround for ReportCrash on MacOS X. Problem |
| spotted by Joseph Gentle. |
| |
| -------------- |
| Version 0.93b: |
| -------------- |
| |
| - Fixed the link() workaround, as reported by Jakub Wilk. |
| |
| -------------- |
| Version 0.92b: |
| -------------- |
| |
| - Added support for reading test cases from another filesystem. |
| Requested by Jakub Wilk. |
| |
| - Added pointers to the mailing list. |
| |
| - Added a sample PDF document. |
| |
| -------------- |
| Version 0.91b: |
| -------------- |
| |
| - Refactored minimize_corpus.sh to make it a bit more user-friendly and to |
| select for smallest files, not largest bitmaps. Offers a modest corpus |
| size improvement in most cases. |
| |
| - Slightly improved the performance of splicing code. |
| |
| -------------- |
| Version 0.90b: |
| -------------- |
| |
| - Moved to an algorithm where paths are marked as preferred primarily based |
| on size and speed, rather than bitmap coverage. This should offer |
| noticeable performance gains in many use cases. |
| |
| - Refactored path calibration code; calibration now takes place as soon as a |
| test case is discovered, to facilitate better prioritization decisions later |
| on. |
| |
| - Changed the way of marking variable paths to avoid .state metadata |
| inconsistencies. |
| |
| - Made sure that calibration routines always create a new test case to avoid |
| hypothetical problems with utilities that modify the input file. |
| |
| - Added bitmap saturation to fuzzer stats and plot data. |
| |
| - Added a testcase for JPEG XR. |
| |
| - Added a tty check for the colors warning in Makefile, to keep distro build |
| logs tidy. Suggested by Jakub Wilk. |
| |
| -------------- |
| Version 0.89b: |
| -------------- |
| |
| - Renamed afl-plot.sh to afl-plot, as requested by Padraig Brady. |
| |
| - Improved the compatibility of afl-plot with older versions of gnuplot. |
| |
| - Added banner information to fuzzer_stats, populated it to afl-plot. |
| |
| -------------- |
| Version 0.88b: |
| -------------- |
| |
| - Added support for plotting, with design and implementation based on a |
| prototype design proposed by Michael Rash. Huge thanks! |
| |
| - Added afl-plot.sh, which allows you to, well, generate a nice plot using |
| this data. |
| |
| - Refactored the code slightly to make more frequent updates to fuzzer_stats |
| and to provide more detail about synchronization. |
| |
| - Added an fflush(stdout) call for non-tty operation, as requested by |
| Joonas Kuorilehto. |
| |
| - Added some detail to fuzzer_stats for parity with plot_file. |
| |
| -------------- |
| Version 0.87b: |
| -------------- |
| |
| - Added support for MSAN, via AFL_USE_MSAN, same gotchas as for ASAN. |
| |
| -------------- |
| Version 0.86b: |
| -------------- |
| |
| - Added AFL_NO_FORKSRV, allowing the forkserver to be bypassed. Suggested |
| by Ryan Govostes. |
| |
| - Simplified afl-showmap.c to make use of the no-forkserver mode. |
| |
| - Made minor improvements to crash_triage.sh, as suggested by Jakub Wilk. |
| |
| -------------- |
| Version 0.85b: |
| -------------- |
| |
| - Fixed the CPU counting code - no sysctlbyname() on OpenBSD, d'oh. Bug |
| reported by Daniel Dickman. |
| |
| - Made a slight correction to error messages - the advice on testing |
| with ulimit was a tiny bit off by a factor of 1024. |
| |
| -------------- |
| Version 0.84b: |
| -------------- |
| |
| - Added support for the CPU widget on some non-Linux platforms (I hope). |
| Based on feedback from Ryan Govostes. |
| |
| - Cleaned up the changelog (very meta). |
| |
| -------------- |
| Version 0.83b: |
| -------------- |
| |
| - Added experimental/clang_asm_normalize/ and related notes in |
| env_variables.txt and afl-as.c. Thanks to Ryan Govostes for the idea. |
| |
| - Added advice on hardware utilization in README. |
| |
| -------------- |
| Version 0.82b: |
| -------------- |
| |
| - Made additional fixes for Xcode support, juggling -Q and -q flags. Thanks to |
| Ryan Govostes. |
| |
| - Added a check for __asm__ blocks and switches to .intel_syntax in assembly. |
| Based on feedback from Ryan Govostes. |
| |
| -------------- |
| Version 0.81b: |
| -------------- |
| |
| - A workaround for Xcode 6 as -Q flag glitch. Spotted by Ryan Govostes. |
| |
| - Improved Solaris build instructions, as suggested by Martin Carpenter. |
| |
| - Fix for a slightly busted path scoring conditional. Minor practical impact. |
| |
| -------------- |
| Version 0.80b: |
| -------------- |
| |
| - Added a check for $PATH-induced loops. Problem noticed by Kartik Agaram. |
| |
| - Added AFL_KEEP_ASSEMBLY for easier troubleshooting. |
| |
| - Added an override for AFL_USE_ASAN if set at afl compile time. Requested by |
| Hanno Boeck. |
| |
| -------------- |
| Version 0.79b: |
| -------------- |
| |
| - Made minor adjustments to path skipping logic. |
| |
| - Made several documentation updates to reflect the path selection changes |
| made in 0.78b. |
| |
| -------------- |
| Version 0.78b: |
| -------------- |
| |
| - Added a CPU governor check. Bug report from Joe Zbiciak. |
| |
| - Favored paths are now selected strictly based on new edges, not hit |
| counts. This speeds up the first pass by a factor of 3-6x without |
| significantly impacting ultimate coverage (tested with libgif, libpng, |
| libjpeg). |
| |
| It also allows some performance & memory usage improvements by making |
| some of the in-memory bitmaps much smaller. |
| |
| - Made multiple significant performance improvements to bitmap checking |
| functions, plus switched to a faster hash. |
| |
| - Owing largely to these optimizations, bumped the size of the bitmap to |
| 64k and added a warning to detect older binaries that rely on smaller |
| bitmaps. |
| |
| -------------- |
| Version 0.77b: |
| -------------- |
| |
| - Added AFL_SKIP_CHECKS to bypass binary checks when really warranted. |
| Feature requested by Jakub Wilk. |
| |
| - Fixed a couple of typos. |
| |
| - Added a warning for runs that are aborted early on. |
| |
| -------------- |
| Version 0.76b: |
| -------------- |
| |
| - Incorporated another signal handling fix for Solaris. Suggestion |
| submitted by Martin Carpenter. |
| |
| -------------- |
| Version 0.75b: |
| -------------- |
| |
| - Implemented a slightly more "elegant" kludge for the %llu glitch (see |
| types.h). |
| |
| - Relaxed CPU load warnings to stay in sync with reality. |
| |
| -------------- |
| Version 0.74b: |
| -------------- |
| |
| - Switched to more responsive exec speed averages and better UI speed |
| scaling. |
| |
| - Fixed a bug with interrupted reads on Solaris. Issue spotted by Martin |
| Carpenter. |
| |
| -------------- |
| Version 0.73b: |
| -------------- |
| |
| - Fixed a stray memcpy() instead of memmove() on overlapping buffers. |
| Mostly harmless but still dumb. Mistake spotted thanks to David Higgs. |
| |
| -------------- |
| Version 0.72b: |
| -------------- |
| |
| - Bumped map size up to 32k. You may want to recompile instrumented |
| binaries (but nothing horrible will happen if you don't). |
| |
| - Made huge performance improvements for bit-counting functions. |
| |
| - Default optimizations now include -funroll-loops. This should have |
| interesting effects on the instrumentation. Frankly, I'm just going to |
| ship it and see what happens next. I have a good feeling about this. |
| |
| - Made a fix for stack alignment crash on MacOS X 10.10; looks like the |
| rhetorical question in the comments in afl-as.h has been answered. |
| Tracked down by Mudge Zatko. |
| |
| -------------- |
| Version 0.71b: |
| -------------- |
| |
| - Added a fix for the nonsensical MacOS ELF check. Spotted by Mudge Zatko. |
| |
| - Made some improvements to ASAN checks. |
| |
| -------------- |
| Version 0.70b: |
| -------------- |
| |
| - Added explicit detection of ASANified binaries. |
| |
| - Fixed compilation issues on Solaris. Reported by Martin Carpenter. |
| |
| -------------- |
| Version 0.69b: |
| -------------- |
| |
| - Improved the detection of non-instrumented binaries. |
| |
| - Made the crash counter in -C mode accurate. |
| |
| - Fixed an obscure install bug that made afl-as non-functional with the tool |
| installed to /usr/bin instead of /usr/local/bin. Found by Florian Kiersch. |
| |
| - Fixed for a cosmetic SIGFPE when Ctrl-C is pressed while the fork server |
| is spinning up. |
| |
| -------------- |
| Version 0.68b: |
| -------------- |
| |
| - Added crash exploration mode! Woot! |
| |
| -------------- |
| Version 0.67b: |
| -------------- |
| |
| - Fixed several more typos, the project is now cartified 100% typo-free. |
| Thanks to Thomas Jarosch and Jakub Wilk. |
| |
| - Made a change to write fuzzer_stats early on. |
| |
| - Fixed a glitch when (not!) running on MacOS X as root. Spotted by Tobias |
| Ospelt. |
| |
| - Made it possible to override -O3 in Makefile. Suggested by Jakub Wilk. |
| |
| -------------- |
| Version 0.66b: |
| -------------- |
| |
| - Fixed a very obscure issue with build systems that use gcc as an assembler |
| for hand-written .s files; this would confuse afl-as. Affected nss, reported |
| by Hanno Boeck. |
| |
| - Fixed a bug when cleaning up synchronized fuzzer output dirs. Issue reported |
| by Thomas Jarosch. |
| |
| -------------- |
| Version 0.65b: |
| -------------- |
| |
| - Cleaned up shell printf escape codes in Makefile. Reported by Jakub Wilk. |
| |
| - Added more color to fuzzer_stats, provided short documentation of the file |
| format, and made several other stats-related improvements. |
| |
| -------------- |
| Version 0.64b: |
| -------------- |
| |
| - Enabled GCC support on MacOS X. |
| |
| -------------- |
| Version 0.63b: |
| -------------- |
| |
| - Provided a new, simplified way to pass data in files (@@). See README. |
| |
| - Made additional fixes for 64-bit MacOS X, working around a crashing bug in |
| their linker (umpf) and several other things. It's alive! |
| |
| - Added a minor workaround for a bug in 64-bit FreeBSD (clang -m32 -g doesn't |
| work on that platform, but clang -m32 does, so we no longer insert -g). |
| |
| - Added a build-time warning for inverse video terminals and better |
| instructions in status_screen.txt. |
| |
| -------------- |
| Version 0.62b: |
| -------------- |
| |
| - Made minor improvements to the allocator, as suggested by Tobias Ospelt. |
| |
| - Added example instrumented memcmp() in experimental/instrumented_cmp. |
| |
| - Added a speculative fix for MacOS X (clang detection, again). |
| |
| - Fixed typos in parallel_fuzzing.txt. Problems spotted by Thomas Jarosch. |
| |
| -------------- |
| Version 0.61b: |
| -------------- |
| |
| - Fixed a minor issue with clang detection on systems with a clang cc |
| wrapper, so that afl-gcc doesn't confuse it with GCC. |
| |
| - Made cosmetic improvements to docs and to the CPU load indicator. |
| |
| - Fixed a glitch with crash removal (README.txt left behind, d'oh). |
| |
| -------------- |
| Version 0.60b: |
| -------------- |
| |
| - Fixed problems with jump tables generated by exotic versions of GCC. This |
| solves an outstanding problem on OpenBSD when using afl-gcc + PIE (not |
| present with afl-clang). |
| |
| - Fixed permissions on one of the sample archives. |
| |
| - Added a lahf / sahf workaround for OpenBSD (their assembler doesn't know |
| about these opcodes). |
| |
| - Added docs/INSTALL. |
| |
| -------------- |
| Version 0.59b: |
| -------------- |
| |
| - Modified 'make install' to also install test cases. |
| |
| - Provided better pointers to installed README in afl-fuzz. |
| |
| - More work on RLIMIT_AS for OpenBSD. |
| |
| -------------- |
| Version 0.58b: |
| -------------- |
| |
| - Added a core count check on Linux. |
| |
| - Refined the code for the lack-of-RLIMIT_AS case on OpenBSD. |
| |
| - Added a rudimentary CPU utilization meter to help with optimal loading. |
| |
| -------------- |
| Version 0.57b: |
| -------------- |
| |
| - Made fixes to support FreeBSD and OpenBSD: use_64bit is now inferred if not |
| explicitly specified when calling afl-as, and RLIMIT_AS is behind an #ifdef. |
| Thanks to Fabian Keil and Jonathan Gray for helping troubleshoot this. |
| |
| - Modified 'make install' to also install docs (in /usr/local/share/doc/afl). |
| |
| - Fixed a typo in status_screen.txt. |
| |
| - Made a couple of Makefile improvements as proposed by Jakub Wilk. |
| |
| -------------- |
| Version 0.56b: |
| -------------- |
| |
| - Added probabilistic instrumentation density reduction in ASAN mode. This |
| compensates for ASAN-specific branches in a crude but workable way. |
| |
| - Updated notes_for_asan.txt. |
| |
| -------------- |
| Version 0.55b: |
| -------------- |
| |
| - Implemented smarter out_dir behavior, automatically deleting directories |
| that don't contain anything of special value. Requested by several folks, |
| including Hanno Boeck. |
| |
| - Added more detail in fuzzer_stats (start time, run time, fuzzer PID). |
| |
| - Implemented support for configurable install prefixes in Makefile |
| ($PREFIX), as requested by Luca Barbato. |
| |
| - Made it possible to resume by doing -i <out_dir>, without having to specify |
| -i <out_dir>/queue/. |
| |
| -------------- |
| Version 0.54b: |
| -------------- |
| |
| - Added a fix for -Wformat warning messages (oops, I thought this had been in |
| place for a while). |
| |
| -------------- |
| Version 0.53b: |
| -------------- |
| |
| - Redesigned the crash & hang duplicate detection code to better deal with |
| fault conditions that can be reached in a multitude of ways. |
| |
| The old approach could be compared to hashing stack traces to de-dupe |
| crashes, a method prone to crash count inflation. The alternative I |
| wanted to avoid would be equivalent to just looking at crash %eip, |
| which can have false negatives in common functions such as memcpy(). |
| |
| The middle ground currently used in afl-fuzz can be compared to looking |
| at every line item in the stack trace and tagging crashes as unique if |
| we see any function name that we haven't seen before (or if something that |
| we have *always* seen there suddenly disappears). We do the comparison |
| without paying any attention to ordering or hit counts. This can still |
| cause some crash inflation early on, but the problem will quickly taper |
| off. So, you may get 20 dupes instead of 5,000. |
| |
| - Added a fix for harmless but absurd trim ratios shown if the first exec in |
| the trimmer timed out. Spotted by @EspenGx. |
| |
| -------------- |
| Version 0.52b: |
| -------------- |
| |
| - Added a quick summary of the contents in experimental/. |
| |
| - Made a fix to the process of writing fuzzer_stats. |
| |
| - Slightly reorganized the .state/ directory, now recording redundant paths, |
| too. Note that this breaks the ability to properly resume older sessions |
| - sorry about that. |
| |
| (To fix this, simply move <out_dir>/.state/* from an older run |
| to <out_dir>/.state/deterministic_done/*.) |
| |
| -------------- |
| Version 0.51b: |
| -------------- |
| |
| - Changed the search order for afl-as to avoid the problem with older copies |
| installed system-wide; this also means that I can remove the Makefile check |
| for that. |
| |
| - Made it possible to set instrumentation ratio of 0%. |
| |
| - Introduced some typos, fixed others. |
| |
| - Fixed the test_prev target in Makefile, as reported by Ozzy Johnson. |
| |
| -------------- |
| Version 0.50b: |
| -------------- |
| |
| - Improved the 'make install' logic, as suggested by Padraig Brady. |
| |
| - Revamped various bits of the documentation, especially around perf_tips.txt; |
| based on the feedback from Alexander Cherepanov. |
| |
| - Added AFL_INST_RATIO to afl-as. The only case where this comes handy is |
| ffmpeg, at least as far as I can tell. (Trivia: the current version of |
| ffmpeg ./configure also ignores CC and --cc, probably unintentionally). |
| |
| - Added documentation for all environmental variables (env_variables.txt). |
| |
| - Implemented a visual warning for excessive or insufficient bitmap density. |
| |
| - Changed afl-gcc to add -O3 by default; use AFL_DONT_OPTIMIZE if you don't |
| like that. Big speed gain for ffmpeg, so seems like a good idea. |
| |
| - Made a regression fix to afl-as to ignore .LBB labels in gcc mode. |
| |
| -------------- |
| Version 0.49b: |
| -------------- |
| |
| - Fixed more typos, as found by Jakub Wilk. |
| |
| - Added support for clang! |
| |
| - Changed AFL_HARDEN to *not* include ASAN by default. Use AFL_USE_ASAN if |
| needed. The reasons for this are in notes_for_asan.txt. |
| |
| - Switched from configure auto-detection to isatty() to keep afl-as and |
| afl-gcc quiet. |
| |
| - Improved installation process to properly create symlinks, rather than |
| copies of binaries. |
| |
| -------------- |
| Version 0.48b: |
| -------------- |
| |
| - Improved afl-fuzz to force-set ASAN_OPTIONS=abort_on_error=1. Otherwise, |
| ASAN crashes wouldn't be caught at all. Reported by Hanno Boeck. |
| |
| - Improved Makefile mkdir logic, as suggested by Hanno Boeck. |
| |
| - Improved the 64-bit instrumentation to properly save r8-r11 registers in |
| the x86 setup code. The old behavior could cause rare problems running |
| *without* instrumentation when the first function called in a particular |
| .o file has 5+ parameters. No impact on code running under afl-fuzz or |
| afl-showmap. Issue spotted by Padraig Brady. |
| |
| -------------- |
| Version 0.47b: |
| -------------- |
| |
| - Fixed another Makefile bug for parallel builds of afl. Problem identified |
| by Richard W. M. Jones. |
| |
| - Added support for suffixes for -m. |
| |
| - Updated the documentation and added notes_for_asan.txt. Based on feedback |
| from Hanno Boeck, Ben Laurie, and others. |
| |
| - Moved the project to http://lcamtuf.coredump.cx/afl/. |
| |
| -------------- |
| Version 0.46b: |
| -------------- |
| |
| - Cleaned up Makefile dependencies for parallel builds. Requested by |
| Richard W. M. Jones. |
| |
| - Added support for DESTDIR in Makefile. Once again suggested by |
| Richard W. M. Jones :-) |
| |
| - Removed all the USE_64BIT stuff; we now just auto-detect compilation mode. |
| As requested by many callers to the show. |
| |
| - Fixed rare problems with programs that use snippets of assembly and |
| switch between .code32 and .code64. Addresses a glitch spotted by |
| Hanno Boeck with compiling ToT gdb. |
| |
| -------------- |
| Version 0.45b: |
| -------------- |
| |
| - Implemented a test case trimmer. Results in 20-30% size reduction for many |
| types of work loads, with very pronounced improvements in path discovery |
| speeds. |
| |
| - Added better warnings for various problems with input directories. |
| |
| - Added a Makefile warning for older copies, based on counterintuitive |
| behavior observed by Hovik Manucharyan. |
| |
| - Added fuzzer_stats file for status monitoring. Suggested by @dronesec. |
| |
| - Fixed moar typos, thanks to Alexander Cherepanov. |
| |
| - Implemented better warnings for ASAN memory requirements, based on calls |
| from several angry listeners. |
| |
| - Switched to saner behavior with non-tty stdout (less output generated, |
| no ANSI art). |
| |
| -------------- |
| Version 0.44b: |
| -------------- |
| |
| - Added support for AFL_CC and AFL_CXX, based on a patch from Ben Laurie. |
| |
| - Replaced afl-fuzz -S -D with -M for simplicity. |
| |
| - Added a check for .section .text; lack of this prevented main() from |
| getting instrumented for some users. Reported by Tom Ritter. |
| |
| - Reorganized the testcases/ directory. |
| |
| - Added an extra check to confirm that the build is operational. |
| |
| - Made more consistent use of color reset codes, as suggested by Oliver |
| Kunz. |
| |
| -------------- |
| Version 0.43b: |
| -------------- |
| |
| - Fixed a bug with 64-bit gcc -shared relocs. |
| |
| - Removed echo -e from Makefile for compatibility with dash. Suggested |
| by Jakub Wilk. |
| |
| - Added status_screen.txt. |
| |
| - Added experimental/canvas_harness. |
| |
| - Made a minor change to the Makefile GCC check. Suggested by Hanno Boeck. |
| |
| -------------- |
| Version 0.42b: |
| -------------- |
| |
| - Fixed a bug with red zone handling for 64-bit (oops!). Problem reported by |
| Felix Groebert. |
| |
| - Implemented horribly experimental ARM support in experimental/arm_support. |
| |
| - Made several improvements to error messages. |
| |
| - Added AFL_QUIET to silence afl-gcc and afl-as when using wonky build |
| systems. Reported by Hanno Boeck. |
| |
| - Improved check for 64-bit compilation, plus several sanity checks |
| in Makefile. |
| |
| -------------- |
| Version 0.41b: |
| -------------- |
| |
| - Fixed a fork served bug for processes that call execve(). |
| |
| - Made minor compatibility fixes to Makefile, afl-gcc; suggested by Jakub |
| Wilk. |
| |
| - Fixed triage_crashes.sh to work with the new layout of output directories. |
| Suggested by Jakub Wilk. |
| |
| - Made multiple performance-related improvements to the injected |
| instrumentation. |
| |
| - Added visual indication of the number of imported paths. |
| |
| - Fixed afl-showmap to make it work well with new instrumentation. |
| |
| - Added much better error messages for crashes when importing test cases |
| or otherwise calibrating the binary. |
| |
| -------------- |
| Version 0.40b: |
| -------------- |
| |
| - Added support for parallelized fuzzing. Inspired by earlier patch |
| from Sebastian Roschke. |
| |
| - Added an example in experimental/distributed_fuzzing/. |
| |
| -------------- |
| Version 0.39b: |
| -------------- |
| |
| - Redesigned status screen, now 90% more spiffy. |
| |
| - Added more verbose and user-friendly messages for some common problems. |
| |
| - Modified the resumption code to reconstruct path depth. |
| |
| - Changed the code to inhibit core dumps and improve the ability to detect |
| SEGVs. |
| |
| - Added a check for redirection of core dumps to programs. |
| |
| - Made a minor improvement to the handling of variable paths. |
| |
| - Made additional performance tweaks to afl-fuzz, chiefly around mem limits. |
| |
| - Added performance_tips.txt. |
| |
| -------------- |
| Version 0.38b: |
| -------------- |
| |
| - Fixed an fd leak and +cov tracking bug resulting from changes in 0.37b. |
| |
| - Implemented auto-scaling for screen update speed. |
| |
| - Added a visual indication when running in non-instrumented mode. |
| |
| -------------- |
| Version 0.37b: |
| -------------- |
| |
| - Added fuzz state tracking for more seamless resumption of aborted |
| fuzzing sessions. |
| |
| - Removed the -D option, as it's no longer necessary. |
| |
| - Refactored calibration code and improved startup reporting. |
| |
| - Implemented dynamically scaled timeouts, so that you don't need to |
| play with -t except in some very rare cases. |
| |
| - Added visual notification for slow binaries. |
| |
| - Improved instrumentation to explicitly cover the other leg of every |
| branch. |
| |
| -------------- |
| Version 0.36b: |
| -------------- |
| |
| - Implemented fork server support to avoid the overhead of execve(). A |
| nearly-verbatim design from Jann Horn; still pending part 2 that would |
| also skip initial setup steps (thinking about reliable heuristics now). |
| |
| - Added a check for shell scripts used as fuzz targets. |
| |
| - Added a check for fuzz jobs that don't seem to be finding anything. |
| |
| - Fixed the way IGNORE_FINDS works (was a bit broken after adding splicing |
| and path skip heuristics). |
| |
| -------------- |
| Version 0.35b: |
| -------------- |
| |
| - Properly integrated 64-bit instrumentation into afl-as. |
| |
| -------------- |
| Version 0.34b: |
| -------------- |
| |
| - Added a new exec count classifier (the working theory is that it gets |
| meaningful coverage with fewer test cases spewed out). |
| |
| -------------- |
| Version 0.33b: |
| -------------- |
| |
| - Switched to new, somewhat experimental instrumentation that tries to |
| target only arcs, rather than every line. May be fragile, but is a lot |
| faster (2x+). |
| |
| - Made several other cosmetic fixes and typo corrections, thanks to |
| Jakub Wilk. |
| |
| -------------- |
| Version 0.32b: |
| -------------- |
| |
| - Another take at fixing the C++ exception thing. Reported by Jakub Wilk. |
| |
| -------------- |
| Version 0.31b: |
| -------------- |
| |
| - Made another fix to afl-as to address a potential problem with newer |
| versions of GCC (introduced in 0.28b). Thanks to Jann Horn. |
| |
| -------------- |
| Version 0.30b: |
| -------------- |
| |
| - Added more detail about the underlying operations in file names. |
| |
| -------------- |
| Version 0.29b: |
| -------------- |
| |
| - Made some general improvements to chunk operations. |
| |
| -------------- |
| Version 0.28b: |
| -------------- |
| |
| - Fixed C++ exception handling in newer versions of GCC. Problem diagnosed |
| by Eberhard Mattes. |
| |
| - Fixed the handling of the overflow flag. Once again, thanks to |
| Eberhard Mattes. |
| |
| -------------- |
| Version 0.27b: |
| -------------- |
| |
| - Added prioritization of new paths over the already-fuzzed ones. |
| |
| - Included spliced test case ID in the output file name. |
| |
| - Fixed a rare, cosmetic null ptr deref after Ctrl-C. |
| |
| - Refactored the code to make copies of test cases in the output directory. |
| |
| - Switched to better output file names, keeping track of stage and splicing |
| sources. |
| |
| -------------- |
| Version 0.26b: |
| -------------- |
| |
| - Revamped storage of testcases, -u option removed, |
| |
| - Added a built-in effort minimizer to get rid of potentially redundant |
| inputs, |
| |
| - Provided a testcase count minimization script in experimental/, |
| |
| - Made miscellaneous improvements to directory and file handling. |
| |
| - Fixed a bug in timeout detection. |
| |
| -------------- |
| Version 0.25b: |
| -------------- |
| |
| - Improved count-based instrumentation. |
| |
| - Improved the hang deduplication logic. |
| |
| - Added -cov prefixes for test cases. |
| |
| - Switched from readdir() to scandir() + alphasort() to preserve ordering of |
| test cases. |
| |
| - Added a splicing strategy. |
| |
| - Made various minor UI improvements and several other bugfixes. |
| |
| -------------- |
| Version 0.24b: |
| -------------- |
| |
| - Added program name to the status screen, plus the -T parameter to go with |
| it. |
| |
| -------------- |
| Version 0.23b: |
| -------------- |
| |
| - Improved the detection of variable behaviors. |
| |
| - Added path depth tracking, |
| |
| - Improved the UI a bit, |
| |
| - Switched to simplified (XOR-based) tuple instrumentation. |
| |
| -------------- |
| Version 0.22b: |
| -------------- |
| |
| - Refactored the handling of long bitflips and some swaps. |
| |
| - Fixed the handling of gcc -pipe, thanks to anonymous reporter. |
| |
| --------------------------- |
| Version 0.21b (2013-11-12): |
| --------------------------- |
| |
| - Initial public release. |
