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This commit is contained in:
vanhauser-thc
2023-06-06 16:55:32 +02:00
parent 4deb45f3b3
commit 14e25340fb
2 changed files with 115 additions and 99 deletions
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3
include/afl-mutations.h
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@ -78,7 +78,7 @@ enum {
}; };
#define MUT_NORMAL_ARRAY_SIZE 77 #define MUT_NORMAL_ARRAY_SIZE 77
u32 normal_splice[MUT_NORMAL_ARRAY_SIZE] = {MUT_FLIPBIT, u32 normal_splice_array[MUT_NORMAL_ARRAY_SIZE] = {MUT_FLIPBIT,
MUT_FLIPBIT, MUT_FLIPBIT,
MUT_FLIPBIT, MUT_FLIPBIT,
MUT_FLIPBIT, MUT_FLIPBIT,
@ -155,6 +155,7 @@ u32 normal_splice[MUT_NORMAL_ARRAY_SIZE] = {MUT_FLIPBIT,
MUT_SPLICE_OVERWRITE, MUT_SPLICE_OVERWRITE,
MUT_SPLICE_INSERT, MUT_SPLICE_INSERT,
MUT_SPLICE_INSERT}; MUT_SPLICE_INSERT};
#define MUT_SPLICE_ARRAY_SIZE 81 #define MUT_SPLICE_ARRAY_SIZE 81
u32 full_splice_array[MUT_SPLICE_ARRAY_SIZE] = {MUT_FLIPBIT, u32 full_splice_array[MUT_SPLICE_ARRAY_SIZE] = {MUT_FLIPBIT,
MUT_FLIPBIT, MUT_FLIPBIT,

19
src/afl-fuzz-one.c
View File

@ -2081,8 +2081,21 @@ havoc_stage:
where we take the input file and make random stacked tweaks. */ where we take the input file and make random stacked tweaks. */
u32 *mutation_array; u32 *mutation_array;
u32 stack_max; // stack_max_pow = afl->havoc_stack_pow2; u32 stack_max, rand_max; // stack_max_pow = afl->havoc_stack_pow2;
if (unlikely(afl->expand_havoc && afl->ready_for_splicing_count > 1)) {
mutation_array = full_splice_array;
rand_max = MUT_SPLICE_ARRAY_SIZE;
} else {
mutation_array = normal_splice_array;
rand_max = MUT_NORMAL_ARRAY_SIZE;
}
/*
if (unlikely(afl->text_input || afl->queue_cur->is_ascii)) { // is text? if (unlikely(afl->text_input || afl->queue_cur->is_ascii)) { // is text?
if (likely(afl->fuzz_mode == 0)) { // is exploration? if (likely(afl->fuzz_mode == 0)) { // is exploration?
@ -2109,6 +2122,8 @@ havoc_stage:
} }
*/
/* /*
if (temp_len < 64) { if (temp_len < 64) {
@ -2180,7 +2195,7 @@ havoc_stage:
retry_havoc_step : { retry_havoc_step : {
u32 r = rand_below(afl, MUT_STRATEGY_ARRAY_SIZE), item; u32 r = rand_below(afl, rand_max), item;
switch (mutation_array[r]) { switch (mutation_array[r]) {