From fc401f1acc61b73f328a16ac10bed268134c495e Mon Sep 17 00:00:00 2001
From: van Hauser <vh@thc.org>
Date: Thu, 30 Jul 2020 11:51:13 +0200
Subject: fix post process check

---
 src/afl-fuzz-run.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/afl-fuzz-run.c')

diff --git a/src/afl-fuzz-run.c b/src/afl-fuzz-run.c
index 691d32f8..44d3c522 100644
--- a/src/afl-fuzz-run.c
+++ b/src/afl-fuzz-run.c
@@ -185,7 +185,7 @@ static void write_with_gap(afl_state_t *afl, void *mem, u32 len, u32 skip_at,
         new_size =
             el->afl_custom_post_process(el->data, new_mem, new_size, &new_buf);
 
-        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);
-- 
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