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| author | van Hauser <vh@thc.org> | 2021-03-25 08:54:21 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-03-25 08:54:21 +0100 |
| commit | 3b860c1dd63036ee99fbb548c5c0ba0c67f9af08 (patch) | |
| tree | 66d0555fbe862fdbe083450f6fe087bd72945bd7 /docs/env_variables.md | |
| parent | d319b4a3819052de5bf576c560da6e4687c31de9 (diff) | |
| parent | ab394836a9fe3faadb9d1af3a7d377bbcf5b5eee (diff) | |
| download | afl++-3b860c1dd63036ee99fbb548c5c0ba0c67f9af08.tar.gz | |
Merge pull request #844 from AFLplusplus/replay
AFL_PERSISTENT_RECORD support
Diffstat (limited to 'docs/env_variables.md')
| -rw-r--r-- | docs/env_variables.md | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md index 409425f1..6d3d1714 100644 --- a/docs/env_variables.md +++ b/docs/env_variables.md @@ -424,6 +424,16 @@ checks or alter some of the more exotic semantics of the tool: - Setting `AFL_FORCE_UI` will force painting the UI on the screen even if no valid terminal was detected (for virtual consoles) + - If you are using persistent mode (you should, see [instrumentation/README.persistent_mode.md](instrumentation/README.persistent_mode.md)) + some targets keep inherent state due which a detected crash testcase does + not crash the target again when the testcase is given. To be able to still + re-trigger these crashes you can use the `AFL_PERSISTENT_RECORD` variable + with a value of how many previous fuzz cases to keep prio a crash. + if set to e.g. 10, then the 9 previous inputs are written to + out/default/crashes as RECORD:000000,cnt:000000 to RECORD:000000,cnt:000008 + and RECORD:000000,cnt:000009 being the crash case. + NOTE: This option needs to be enabled in config.h first! + - If you are Jakub, you may need `AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES`. Others need not apply, unless they also want to disable the `/proc/sys/kernel/core_pattern` check. |