...

diff --git a/coders/png.c b/coders/png.c
index 1dc31ff2fc18d6b2e4e47eaa4d00afd65ef16205..91026369484266a2d71432646f6f49155e460f9c 100644 (file)
--- 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;
             }