From 66ab1b999f144edd68b9e6467132bfe18903dddc Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 9 Apr 2018 20:58:52 -0400
Subject: [PATCH] https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7504

---
 coders/png.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/coders/png.c b/coders/png.c
index f9be58a46..d4bab3a26 100644
--- a/coders/png.c
+++ b/coders/png.c
@@ -4534,6 +4534,8 @@ static Image *ReadOneJNGImage(MngInfo *mng_info,
             break;
           chunk[i]=(unsigned char) c;
         }
+        for ( ; i < (ssize_t) length; i++)
+          chunk[i]='\0';
 
         p=chunk;
       }
-- 
2.40.0