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fix reallocs

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This commit is contained in:
vanhauser-thc
2023-05-01 15:07:49 +02:00
parent 2cd07abca9
commit 22db79aefa
2 changed files with 42 additions and 4 deletions
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39
src/afl-fuzz.c
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@ -1979,6 +1979,7 @@ int main(int argc, char **argv_orig, char **envp) {
if (afl->non_instrumented_mode || afl->fsrv.qemu_mode ||
afl->fsrv.frida_mode || afl->fsrv.cs_mode || afl->unicorn_mode) {
u32 old_map_size = map_size;
map_size = afl->fsrv.real_map_size = afl->fsrv.map_size = MAP_SIZE;
afl->virgin_bits = ck_realloc(afl->virgin_bits, map_size);
afl->virgin_tmout = ck_realloc(afl->virgin_tmout, map_size);
@ -1990,6 +1991,18 @@ int main(int argc, char **argv_orig, char **envp) {
afl->first_trace = ck_realloc(afl->first_trace, map_size);
afl->map_tmp_buf = ck_realloc(afl->map_tmp_buf, map_size);
if (old_map_size < map_size) {
memset(afl->var_bytes + old_map_size, 0, map_size - old_map_size);
memset(afl->top_rated + old_map_size, 0, map_size - old_map_size);
memset(afl->clean_trace + old_map_size, 0, map_size - old_map_size);
memset(afl->clean_trace_custom + old_map_size, 0,
map_size - old_map_size);
memset(afl->first_trace + old_map_size, 0, map_size - old_map_size);
memset(afl->map_tmp_buf + old_map_size, 0, map_size - old_map_size);
}
}
afl->argv = use_argv;
@ -2017,6 +2030,7 @@ int main(int argc, char **argv_orig, char **envp) {
OKF("Re-initializing maps to %u bytes", new_map_size);
u32 old_map_size = map_size;
afl->virgin_bits = ck_realloc(afl->virgin_bits, new_map_size);
afl->virgin_tmout = ck_realloc(afl->virgin_tmout, new_map_size);
afl->virgin_crash = ck_realloc(afl->virgin_crash, new_map_size);
@ -2029,6 +2043,18 @@ int main(int argc, char **argv_orig, char **envp) {
afl->first_trace = ck_realloc(afl->first_trace, new_map_size);
afl->map_tmp_buf = ck_realloc(afl->map_tmp_buf, new_map_size);
if (old_map_size < new_map_size) {
memset(afl->var_bytes + old_map_size, 0, new_map_size - old_map_size);
memset(afl->top_rated + old_map_size, 0, new_map_size - old_map_size);
memset(afl->clean_trace + old_map_size, 0, new_map_size - old_map_size);
memset(afl->clean_trace_custom + old_map_size, 0,
new_map_size - old_map_size);
memset(afl->first_trace + old_map_size, 0, new_map_size - old_map_size);
memset(afl->map_tmp_buf + old_map_size, 0, new_map_size - old_map_size);
}
afl_fsrv_kill(&afl->fsrv);
afl_shm_deinit(&afl->shm);
afl->fsrv.map_size = new_map_size;
@ -2079,6 +2105,7 @@ int main(int argc, char **argv_orig, char **envp) {
OKF("Re-initializing maps to %u bytes due cmplog", new_map_size);
u32 old_map_size = map_size;
afl->virgin_bits = ck_realloc(afl->virgin_bits, new_map_size);
afl->virgin_tmout = ck_realloc(afl->virgin_tmout, new_map_size);
afl->virgin_crash = ck_realloc(afl->virgin_crash, new_map_size);
@ -2091,6 +2118,18 @@ int main(int argc, char **argv_orig, char **envp) {
afl->first_trace = ck_realloc(afl->first_trace, new_map_size);
afl->map_tmp_buf = ck_realloc(afl->map_tmp_buf, new_map_size);
if (old_map_size < new_map_size) {
memset(afl->var_bytes + old_map_size, 0, new_map_size - old_map_size);
memset(afl->top_rated + old_map_size, 0, new_map_size - old_map_size);
memset(afl->clean_trace + old_map_size, 0, new_map_size - old_map_size);
memset(afl->clean_trace_custom + old_map_size, 0,
new_map_size - old_map_size);
memset(afl->first_trace + old_map_size, 0, new_map_size - old_map_size);
memset(afl->map_tmp_buf + old_map_size, 0, new_map_size - old_map_size);
}
afl_fsrv_kill(&afl->fsrv);
afl_fsrv_kill(&afl->cmplog_fsrv);
afl_shm_deinit(&afl->shm);