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small improvements to Marcel's patch, fix laf-intel + redqueen crashes

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This commit is contained in:
van Hauser
2020-09-29 15:02:57 +02:00
parent fe08482c1b
commit 383cd487a2
12 changed files with 104 additions and 74 deletions
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13
src/afl-fuzz-bitmap.c
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@ -556,8 +556,8 @@ save_if_interesting(afl_state_t *afl, void *mem, u32 len, u8 fault) {
cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
/* Saturated increment */
if (afl->n_fuzz[cksum % n_fuzz_size] < 0xFFFFFFFF)
afl->n_fuzz[cksum % n_fuzz_size]++;
if (afl->n_fuzz[cksum % N_FUZZ_SIZE] < 0xFFFFFFFF)
afl->n_fuzz[cksum % N_FUZZ_SIZE]++;
}
@ -597,10 +597,15 @@ save_if_interesting(afl_state_t *afl, void *mem, u32 len, u8 fault) {
if (cksum)
afl->queue_top->exec_cksum = cksum;
else
afl->queue_top->exec_cksum =
cksum = afl->queue_top->exec_cksum =
hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
afl->n_fuzz[cksum % n_fuzz_size] = 1;
if (afl->schedule >= FAST && afl->schedule <= RARE) {
afl->queue_top->n_fuzz_entry = cksum % N_FUZZ_SIZE;
afl->n_fuzz[afl->queue_top->n_fuzz_entry] = 1;
}
/* Try to calibrate inline; this also calls update_bitmap_score() when
successful. */