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Do not match NUL when memmem

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This commit is contained in:
Evian-Zhang
2025-05-09 09:46:05 +08:00
parent b1730d99b6
commit 61e97a8ceb
2 changed files with 6 additions and 6 deletions
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8
src/afl-fuzz-init.c
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@ -3116,7 +3116,7 @@ void check_binary(afl_state_t *afl, u8 *fname) {
!afl->fsrv.nyx_mode &&
#endif
!afl->fsrv.cs_mode && !afl->non_instrumented_mode &&
!afl_memmem(f_data, f_len, SHM_ENV_VAR, strlen(SHM_ENV_VAR) + 1)) {
!afl_memmem(f_data, f_len, SHM_ENV_VAR, strlen(SHM_ENV_VAR))) {
SAYF("\n" cLRD "[-] " cRST
"Looks like the target binary is not instrumented! The fuzzer depends "
@ -3147,7 +3147,7 @@ void check_binary(afl_state_t *afl, u8 *fname) {
}
if ((afl->fsrv.cs_mode || afl->fsrv.qemu_mode || afl->fsrv.frida_mode) &&
afl_memmem(f_data, f_len, SHM_ENV_VAR, strlen(SHM_ENV_VAR) + 1)) {
afl_memmem(f_data, f_len, SHM_ENV_VAR, strlen(SHM_ENV_VAR))) {
SAYF("\n" cLRD "[-] " cRST
"This program appears to be instrumented with AFL++ compilers, but is "
@ -3182,7 +3182,7 @@ void check_binary(afl_state_t *afl, u8 *fname) {
/* Detect persistent & deferred init signatures in the binary. */
if (afl_memmem(f_data, f_len, PERSIST_SIG, strlen(PERSIST_SIG) + 1)) {
if (afl_memmem(f_data, f_len, PERSIST_SIG, strlen(PERSIST_SIG))) {
OKF(cPIN "Persistent mode binary detected.");
setenv(PERSIST_ENV_VAR, "1", 1);
@ -3209,7 +3209,7 @@ void check_binary(afl_state_t *afl, u8 *fname) {
}
if (afl->fsrv.frida_mode ||
afl_memmem(f_data, f_len, DEFER_SIG, strlen(DEFER_SIG) + 1)) {
afl_memmem(f_data, f_len, DEFER_SIG, strlen(DEFER_SIG))) {
OKF(cPIN "Deferred forkserver binary detected.");
setenv(DEFER_ENV_VAR, "1", 1);