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prevent weighting < 1

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vanhauser-thc
2022-12-28 17:40:56 +01:00
parent 342081d5ee
commit e847b9948d
1 changed files with 2 additions and 1 deletions
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3
src/afl-fuzz-queue.c
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@ -51,13 +51,14 @@ double compute_weight(afl_state_t *afl, struct queue_entry *q,
if (likely(afl->schedule >= FAST && afl->schedule <= RARE)) { if (likely(afl->schedule >= FAST && afl->schedule <= RARE)) {
u32 hits = afl->n_fuzz[q->n_fuzz_entry]; u32 hits = afl->n_fuzz[q->n_fuzz_entry];
if (likely(hits)) { weight *= log10(hits) + 1; } if (likely(hits)) { weight *= (log10(hits) + 1); }
} }
if (likely(afl->schedule < RARE)) { weight *= (avg_exec_us / q->exec_us); } if (likely(afl->schedule < RARE)) { weight *= (avg_exec_us / q->exec_us); }
weight *= (log(q->bitmap_size) / avg_bitmap_size); weight *= (log(q->bitmap_size) / avg_bitmap_size);
weight *= (1 + (q->tc_ref / avg_top_size)); weight *= (1 + (q->tc_ref / avg_top_size));
if (unlikely(weight < 1.0)) { weight = 1.0; }
if (unlikely(q->favored)) { weight *= 5; } if (unlikely(q->favored)) { weight *= 5; }
if (unlikely(!q->was_fuzzed)) { weight *= 2; } if (unlikely(!q->was_fuzzed)) { weight *= 2; }