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authorKuan-Wei Chiu <visitorckw@gmail.com>2024-06-13 00:39:20 +0800
committerKuan-Wei Chiu <visitorckw@gmail.com>2024-06-13 00:42:12 +0800
commitd45cd63583b0a888d0867fb77f092a811e99b38e (patch)
tree762f659837f7c74dac56aa9a4f7bbc5ff101e8d2
parent0c9b460cc46aebfa4eb6e1fbe928895c0a8fcfbd (diff)
downloadafl++-d45cd63583b0a888d0867fb77f092a811e99b38e.tar.gz
Fix memory allocation check in aflpp custom mutators
The memory allocation check in afl_custom_fuzz function was incorrect. The condition was erroneously checking if ptr was non-null, whereas it should return 0 when ptr is null. Correct the condition to properly handle memory allocation failures. Fixes: 32ffa266 ("max_len support")
-rw-r--r--custom_mutators/aflpp/aflpp.c2
-rw-r--r--custom_mutators/aflpp/standalone/aflpp-standalone.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/custom_mutators/aflpp/aflpp.c b/custom_mutators/aflpp/aflpp.c
index 0b236f76..ea50751a 100644
--- a/custom_mutators/aflpp/aflpp.c
+++ b/custom_mutators/aflpp/aflpp.c
@@ -48,7 +48,7 @@ size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
u8 *ptr = realloc(data->buf, max_size);
- if (ptr) {
+ if (!ptr) {
return 0;
diff --git a/custom_mutators/aflpp/standalone/aflpp-standalone.c b/custom_mutators/aflpp/standalone/aflpp-standalone.c
index 3a2cbc2f..a3789cd1 100644
--- a/custom_mutators/aflpp/standalone/aflpp-standalone.c
+++ b/custom_mutators/aflpp/standalone/aflpp-standalone.c
@@ -53,7 +53,7 @@ size_t afl_custom_fuzz(my_mutator_t *data, uint8_t *buf, size_t buf_size,
u8 *ptr = realloc(data->buf, max_size);
- if (ptr) {
+ if (!ptr) {
return 0;