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fix: correct rescoring logic with minimal executions

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Previous scoring logic did not correctly rescore all queue entries.

This patch ensures rescoring works under the updated scheduling logic,
while minimizing executions per feedback from PR #2363.

Based on feedback from: https://github.com/AFLplusplus/AFLplusplus/pull/2363
This commit is contained in:
5angjun
2025-04-09 23:37:16 +09:00
parent 5ff21c9aad
commit 161905c2fc
4 changed files with 182 additions and 10 deletions
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4
src/afl-fuzz-state.c
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@ -106,7 +106,8 @@ void afl_state_init(afl_state_t *afl, uint32_t map_size) {
afl->switch_fuzz_mode = STRATEGY_SWITCH_TIME * 1000;
afl->q_testcase_max_cache_size = TESTCASE_CACHE_SIZE * 1048576UL;
afl->q_testcase_max_cache_entries = 64 * 1024;
afl->last_scored_idx = -1;
#ifdef HAVE_AFFINITY
afl->cpu_aff = -1; /* Selected CPU core */
#endif /* HAVE_AFFINITY */
@ -116,6 +117,7 @@ void afl_state_init(afl_state_t *afl, uint32_t map_size) {
afl->virgin_crash = ck_alloc(map_size);
afl->var_bytes = ck_alloc(map_size);
afl->top_rated = ck_alloc(map_size * sizeof(void *));
afl->top_rated_candidates = ck_alloc(map_size * sizeof(u32));
afl->clean_trace = ck_alloc(map_size);
afl->clean_trace_custom = ck_alloc(map_size);
afl->first_trace = ck_alloc(map_size);