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| author | van Hauser <vh@thc.org> | 2023-05-15 11:51:37 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-05-15 10:51:37 +0200 |
| commit | c4b1566ba35c697cda7822bd0cf30e2e3eeee0c7 (patch) | |
| tree | 3337fbdabebc223c5222b650127af7469a77f693 /docs/FAQ.md | |
| parent | 74be9ab5ce61d5b561faf688c245143da1a0141e (diff) | |
| download | afl++-c4b1566ba35c697cda7822bd0cf30e2e3eeee0c7.tar.gz | |
push to stable (#1734)
* afl++ -> AFL++
* update readme
* more debug
* slightly different weighting algo (#1719)
* better seed selection
* slightly different weighting calculation
* remove unnecessary memset
* Add "Hangs saved" to afl-whatsup (#1717)
The hangs could show long or infinite loops. This is important.
Co-authored-by: van Hauser <vh@thc.org>
* nits
* afl-showmap: Start a only a single fork server (#1718)
A forkserver is started by afl_fsrv_get_mapsize() when dynamically
finding the map size. When an input directory option is specified a
second fork server was also started. This commit re-arranges the inits
for several forkserver struct members so that we can re-use the server
started by the get_mapsize() call when not in coresight/qemu/unicorn
modes and just start the server otherwise.
* Source Code Coverage support for Nyx (Part 1) (#1720)
* Additional source code reformatting in afl-compiler-rt
* Add source code coverage support to afl-compiler-rt (for use with Nyx)
* doc, code format
* llvm 17 changes
* more llvm 17
* add frida mode tutorial
* fix effector map
* docs
* Should memset EFF_ALEN(len) of eff_map (#1722)
* fix reallocs
* fix afl-system-config for macos
* afl-fuzz.c: Document -i - in --help (#1725)
afl-fuzz.c: Document `-i -` in `--help`, to write that `-i` can be passed '-' to resume the prior fuzzing job. Also reference AFL_AUTORESUME so users know they can set that parameter to sidestep the issue entirely.
* tritondse custom mutator attempt
* tritondse fixes
* update libnyx (#1727)
* GNUmakefile: Update LLVM instructions (#1728)
Update LLVM instructions, because versions higher than 14 are supported and to be explicit that LLD is also required
* disable macos in the ci, works fine for me
* fix makefile
* better tritondse support
* next steps for tritondse
* qemuafl: Persistent mode for PPC32 targets
* update qemu_mode
* afl-clang-lto incomptable with -flto=thin
* add @responsefile support for afl-cc
---------
Co-authored-by: fxlb <devel.fx.lebail@orange.fr>
Co-authored-by: Nick Potenski <nick.potenski@garmin.com>
Co-authored-by: Christian Holler (:decoder) <choller@mozilla.com>
Co-authored-by: lazymio <mio@lazym.io>
Co-authored-by: Moshe Kaplan <me@moshekaplan.com>
Co-authored-by: Sergej Schumilo <sergej@schumilo.de>
Co-authored-by: Dominik Maier <domenukk@gmail.com>
Diffstat (limited to 'docs/FAQ.md')
| -rw-r--r-- | docs/FAQ.md | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/FAQ.md b/docs/FAQ.md index 76350c79..8178db46 100644 --- a/docs/FAQ.md +++ b/docs/FAQ.md @@ -171,6 +171,14 @@ If you find an interesting or important question missing, submit it via The more "unstable" edges there are, the harder it is for AFL++ to identify valid new paths. + If you fuzz in persistent mode (`AFL_LOOP` or `LLVMFuzzerTestOneInput()` + harnesses, a large number of unstable edges can mean that the target keeps + internal state and therefore it is possible that crashes cannot be replayed. + In such a case do either **not** fuzz in persistent mode (remove `AFL_LOOP()` + from your harness or call `LLVMFuzzerTestOneInput()` harnesses with `@@`), + or set a low `AFL_LOOP` value, e.g. 100, and enable `AFL_PERSISTENT_RECORD` + in `config.h` with the same value. + A value above 90% is usually fine and a value above 80% is also still ok, and even a value above 20% can still result in successful finds of bugs. However, it is recommended that for values below 90% or 80% you should take |