From 5e89041a61974cb3b5fff60400001add33f8a507 Mon Sep 17 00:00:00 2001
From: Yevgeny Pats <yp@fuzzit.dev>
Date: Mon, 8 Jul 2019 11:34:07 +0300
Subject: [PATCH] fix

---
 src/test_string.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/test_string.cpp b/src/test_string.cpp
index e71cfb2..4fe74bf 100644
--- a/src/test_string.cpp
+++ b/src/test_string.cpp
@@ -12,7 +12,7 @@ int test_string(const char *src, size_t len)
     } else {
         if (strncmp(src, FLAG, strlen(FLAG)) == 0) {
             // TRIGGER HEAP OVERFLOW READ
-            if (src[len] == 0) {
+            if (src[len-1] == 0) {
                 return -2;
             }
             return -1;