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-rw-r--r--src/afl-fuzz-run.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/afl-fuzz-run.c b/src/afl-fuzz-run.c
index f1da9c65..2a1664e2 100644
--- a/src/afl-fuzz-run.c
+++ b/src/afl-fuzz-run.c
@@ -109,7 +109,7 @@ void write_to_testcase(afl_state_t *afl, void *mem, u32 len) {
 
     });
 
-    if (unlikely(!new_buf && (new_size < 0))) {
+    if (unlikely(!new_buf && (new_size <= 0))) {
 
       FATAL("Custom_post_process failed (ret: %lu)", (long unsigned)new_size);