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Fix use of afl_hash_ip #22

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merged 1 commit into from
Oct 21, 2023
Merged

Fix use of afl_hash_ip #22

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8 changes: 4 additions & 4 deletions unicornafl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,7 @@ class UCAFL {
uc_afl_ret fsrv_run() {
uc_afl_ret ret;
this->_may_use_shm_testcase();
this->_afl_steup();
this->_afl_setup();
if (this->has_afl_) {
this->_uc_setup();
}
Expand Down Expand Up @@ -333,7 +333,7 @@ class UCAFL {

static void _uc_hook_block(uc_engine* uc, uint64_t address, uint32_t size,
void* user_data) {
uint64_t cur_loc = afl_hash_ip(address);
uint64_t cur_loc = afl_hash_ip(address) & (MAP_SIZE - 1);
UCAFL* ucafl = (UCAFL*)user_data;

ucafl->afl_area_ptr_[cur_loc ^ ucafl->afl_prev_loc_]++;
Expand Down Expand Up @@ -413,7 +413,7 @@ class UCAFL {
uint64_t arg2, uint32_t size,
void* user_data) {
UCAFL* ucafl = (UCAFL*)user_data;
uint64_t cur_loc = ((address >> 4) ^ (address << 8)) & (MAP_SIZE - 7);
uint64_t cur_loc = afl_hash_ip(address) & (MAP_SIZE - 1);

if (unlikely(cur_loc >= ucafl->afl_inst_rms_)) {
return;
Expand Down Expand Up @@ -475,7 +475,7 @@ class UCAFL {
}
}

void _afl_steup() {
void _afl_setup() {
char* map_id_str = getenv(SHM_ENV_VAR);
char* inst_r_str = getenv("AFL_INST_RATIO");

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