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increase stack size

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This commit is contained in:
van Hauser
2020-08-10 13:59:30 +02:00
parent 8428b18d2a
commit 3ecafde29d
3 changed files with 9 additions and 4 deletions
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4
src/afl-common.c
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@ -467,8 +467,8 @@ void read_bitmap(u8 *fname, u8 *map, size_t len) {
u64 get_cur_time(void) {
struct timeval tv;
struct timezone tz;
static struct timeval tv;
static struct timezone tz;
gettimeofday(&tv, &tz);

2
src/afl-fuzz-run.c
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@ -885,7 +885,7 @@ u8 common_fuzz_stuff(afl_state_t *afl, u8 *out_buf, u32 len) {
u32 i, taint = 0;
for (i = 0; i < new_len; i++) {
if (i > afl->taint_len || afl->taint_map[i] || i > afl->queue_cur->len)
if (i >= afl->taint_len || i >= afl->queue_cur->len || afl->taint_map[i])
new_buf[i] = out_buf[taint++];
else
new_buf[i] = afl->taint_src[i];

7
src/afl-fuzz.c
View File

@ -1305,6 +1305,12 @@ int main(int argc, char **argv_orig, char **envp) {
OKF("Taint forkserver successfully started");
const rlim_t kStackSize = 64L * 1024L * 1024L; // min stack size = 64 Mb
struct rlimit rl;
rl.rlim_cur = kStackSize;
if (getrlimit(RLIMIT_STACK, &rl) != 0)
WARNF("Setting a higher stack size failed!");
#define BUF_PARAMS(name) (void **)&afl->name##_buf, &afl->name##_size
u8 *tmp1 = ck_maybe_grow(BUF_PARAMS(eff), MAX_FILE + 4096);
u8 *tmp2 = ck_maybe_grow(BUF_PARAMS(ex), MAX_FILE + 4096);
@ -1312,7 +1318,6 @@ int main(int argc, char **argv_orig, char **envp) {
u8 *tmp4 = ck_maybe_grow(BUF_PARAMS(out), MAX_FILE + 4096);
u8 *tmp5 = ck_maybe_grow(BUF_PARAMS(out_scratch), MAX_FILE + 4096);
#undef BUF_PARAMS
if (!tmp1 || !tmp2 || !tmp3 || !tmp4 || !tmp5)
FATAL("memory issues. me hungry, feed me!");