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| author | Alyssa Coghlan <ncoghlan@gmail.com> | 2024-08-21 19:02:38 +1000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-08-21 19:02:38 +1000 |
| commit | 2b7aae66b64a5da556bb8192acad13b828ab1711 (patch) | |
| tree | b0433bd298713830f3b34b7d610fe49fb8234dbc | |
| parent | 097828391530c7858ba80024d69c4efdad2e2fb2 (diff) | |
| download | afl++-2b7aae66b64a5da556bb8192acad13b828ab1711.tar.gz | |
Offer more explicit core dump handling tip
| -rw-r--r-- | src/afl-fuzz-init.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/src/afl-fuzz-init.c b/src/afl-fuzz-init.c index 4f366b0d..b042fce8 100644 --- a/src/afl-fuzz-init.c +++ b/src/afl-fuzz-init.c @@ -2443,20 +2443,24 @@ void check_crash_handling(void) { SAYF( "\n" cLRD "[-] " cRST - "Hmm, your system is configured to send core dump notifications to an\n" + "Your system is configured to send core dump notifications to an\n" " external utility. This will cause issues: there will be an " "extended delay\n" " between stumbling upon a crash and having this information " "relayed to the\n" " fuzzer via the standard waitpid() API.\n" - " If you're just testing, set " + " If you're experimenting (so missed crashes don't matter), set " "'AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES=1'.\n\n" - " To avoid having crashes misinterpreted as timeouts, please log in " - "as root\n" - " and temporarily modify /proc/sys/kernel/core_pattern, like so:\n\n" + " To avoid having crashes misinterpreted as timeouts, please \n" + " temporarily modify /proc/sys/kernel/core_pattern, like so:\n\n" - " echo core >/proc/sys/kernel/core_pattern\n"); + " core_cmd=\"$(cat /proc/sys/kernel/core_pattern)\"\n" + " echo core | sudo tee /proc/sys/kernel/core_pattern\n" + + " After fuzz testing is complete, restore the core handling:\n\n" + + " echo \"$core_cmd\" | sudo tee /proc/sys/kernel/core_pattern\n"); if (!getenv("AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES")) { |