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| author | van Hauser <vh@thc.org> | 2020-12-17 22:57:28 +0100 |
|---|---|---|
| committer | van Hauser <vh@thc.org> | 2020-12-17 22:57:28 +0100 |
| commit | fd6bff727a860220bdd035952a7666c60f444b3f (patch) | |
| tree | dada4f1e26de6e2a71dfe237326a896a66abcd7f | |
| parent | 14c67f15c98b16bb0c22f6a94d66d714bf61af5a (diff) | |
| download | afl++-fd6bff727a860220bdd035952a7666c60f444b3f.tar.gz | |
fix crash for very fast targets
| -rw-r--r-- | docs/Changelog.md | 1 | ||||
| -rw-r--r-- | src/afl-common.c | 5 | ||||
| -rw-r--r-- | src/afl-fuzz-stats.c | 2 |
3 files changed, 8 insertions, 0 deletions
diff --git a/docs/Changelog.md b/docs/Changelog.md index c2ed0a12..ac75c68d 100644 --- a/docs/Changelog.md +++ b/docs/Changelog.md @@ -10,6 +10,7 @@ sending a mail to <afl-users+subscribe@googlegroups.com>. ### Version ++3.01a (release) + - fix crash for very, very fast targets+systems, thanks for reporting @mhlakhani - added dummy Makefile to instrumentation/ - allow instrumenting LLVMFuzzerTestOneInput diff --git a/src/afl-common.c b/src/afl-common.c index 4df22394..6dc8abe0 100644 --- a/src/afl-common.c +++ b/src/afl-common.c @@ -26,6 +26,7 @@ #include <stdlib.h> #include <stdio.h> #include <strings.h> +#include <math.h> #include "debug.h" #include "alloc-inl.h" @@ -786,6 +787,10 @@ u8 *u_stringify_float(u8 *buf, double val) { sprintf(buf, "%0.01f", val); + } else if (unlikely(isnan(val) || isfinite(val))) { + + strcpy(buf, "999.9"); + } else { return u_stringify_int(buf, (u64)val); diff --git a/src/afl-fuzz-stats.c b/src/afl-fuzz-stats.c index 321bbb35..50e2ef15 100644 --- a/src/afl-fuzz-stats.c +++ b/src/afl-fuzz-stats.c @@ -371,6 +371,8 @@ void show_stats(afl_state_t *afl) { if (!afl->stats_last_execs) { + if (unlikely(cur_ms == afl->start_time)) --afl->start_time; + afl->stats_avg_exec = ((double)afl->fsrv.total_execs) * 1000 / (cur_ms - afl->start_time); |