Merge pull request #607 from AFLplusplus/dev

push to stable

1 files changed, 7 insertions, 1 deletions

diff --git a/examples/custom_mutators/post_library_png.so.c b/examples/custom_mutators/post_library_png.so.c
index 7c1ea93e..941f7e55 100644
--- a/examples/custom_mutators/post_library_png.so.c
+++ b/examples/custom_mutators/post_library_png.so.c
@@ -54,7 +54,13 @@ void *afl_custom_init(void *afl) {
   }
 
   state->buf = calloc(sizeof(unsigned char), 4096);
-  if (!state->buf) { return NULL; }
+  if (!state->buf) {
+
+    free(state);
+    perror("calloc");
+    return NULL;
+
+  }
 
   return state;