From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 25 Jun 2017 13:22:19 +0000 (-0400)
Subject: ...
X-Git-Tag: 7.0.6-1~116
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=de0d686c3a180a0190a06a91b0a10c820abd4173;p=imagemagick

...
---

diff --git a/coders/png.c b/coders/png.c
index 1dc31ff2f..910263694 100644
--- a/coders/png.c
+++ b/coders/png.c
@@ -4389,6 +4389,8 @@ static Image *ReadOneJNGImage(MngInfo *mng_info,
             c;
 
           c=ReadBlobByte(image);
+          if (c == EOF)
+            break;
           chunk[i]=(unsigned char) c;
         }
 
@@ -5258,6 +5260,8 @@ static Image *ReadOneMNGImage(MngInfo* mng_info, const ImageInfo *image_info,
                 c;
 
               c=ReadBlobByte(image);
+              if (c == EOF)
+                break;
               chunk[i]=(unsigned char) c;
             }