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fix timeout bug in afl tools

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This commit is contained in:
vanhauser-thc
2021-10-23 20:54:24 +02:00
parent 06b23c7dcb
commit e03897a070
5 changed files with 43 additions and 4 deletions
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6
docs/Changelog.md
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@ -19,8 +19,10 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
- fix stability issue with LTO and cmplog
- better banner
- frida_mode: David Carlier added Android support :)
- afl-showmap, afl-tmin and afl-analyze now honor persistent mode
for more speed. thanks to dloffre-snl for reporting!
- afl-showmap, afl-tmin and afl-analyze:
- honor persistent mode for more speed. thanks to dloffre-snl for
reporting!
- fix bug where targets are not killed on timeouts
- Prevent accidently killing non-afl/fuzz services when aborting
afl-showmap and other tools.
- afl-cc:

12
src/afl-analyze.c
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@ -120,6 +120,17 @@ static u8 count_class_lookup[256] = {
#undef TIMES8
#undef TIMES4
static void kill_child() {
if (fsrv.child_pid > 0) {
kill(fsrv.child_pid, fsrv.kill_signal);
fsrv.child_pid = -1;
}
}
static void classify_counts(u8 *mem) {
u32 i = map_size;
@ -1053,6 +1064,7 @@ int main(int argc, char **argv_orig, char **envp) {
fsrv.target_path = find_binary(argv[optind]);
fsrv.trace_bits = afl_shm_init(&shm, map_size, 0);
detect_file_args(argv + optind, fsrv.out_file, &use_stdin);
signal(SIGALRM, kill_child);
if (qemu_mode) {

4
src/afl-fuzz-init.c
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@ -1325,8 +1325,8 @@ void pivot_inputs(afl_state_t *afl) {
}
nfn = alloc_printf("%s/queue/id:%06u,time:0,execs:%llu,orig:%s", afl->out_dir, id,
afl->fsrv.total_execs, use_name);
nfn = alloc_printf("%s/queue/id:%06u,time:0,execs:%llu,orig:%s",
afl->out_dir, id, afl->fsrv.total_execs, use_name);
#else

13
src/afl-showmap.c
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@ -146,6 +146,17 @@ static const u8 count_class_binary[256] = {
#undef TIMES8
#undef TIMES4
static void kill_child() {
if (fsrv->child_pid > 0) {
kill(fsrv->child_pid, fsrv->kill_signal);
fsrv->child_pid = -1;
}
}
static void classify_counts(afl_forkserver_t *fsrv) {
u8 * mem = fsrv->trace_bits;
@ -526,6 +537,8 @@ static void showmap_run_target(afl_forkserver_t *fsrv, char **argv) {
}
signal(SIGALRM, kill_child);
setitimer(ITIMER_REAL, &it, NULL);
if (waitpid(fsrv->child_pid, &status, 0) <= 0) { FATAL("waitpid() failed"); }

12
src/afl-tmin.c
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@ -120,6 +120,17 @@ static const u8 count_class_lookup[256] = {
#undef TIMES8
#undef TIMES4
static void kill_child() {
if (fsrv->child_pid > 0) {
kill(fsrv->child_pid, fsrv->kill_signal);
fsrv->child_pid = -1;
}
}
static sharedmem_t *deinit_shmem(afl_forkserver_t *fsrv,
sharedmem_t * shm_fuzz) {
@ -1125,6 +1136,7 @@ int main(int argc, char **argv_orig, char **envp) {
fsrv->target_path = find_binary(argv[optind]);
fsrv->trace_bits = afl_shm_init(&shm, map_size, 0);
detect_file_args(argv + optind, out_file, &fsrv->use_stdin);
signal(SIGALRM, kill_child);
if (fsrv->qemu_mode) {