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")

1 files changed, 1 insertions, 1 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;