From: Cristy <urban-warrior@imagemagick.org>
Date: Tue, 26 Jun 2018 22:57:13 +0000 (-0400)
Subject: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=883
X-Git-Tag: 7.0.8-4~14
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e6215b9816eb6446470b5db1d385342a72edb948;p=imagemagick

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=883
---

diff --git a/coders/png.c b/coders/png.c
index 8547cad3e..b3ecd890b 100644
--- a/coders/png.c
+++ b/coders/png.c
@@ -5002,8 +5002,8 @@ static Image *ReadOneJNGImage(MngInfo *mng_info,
       "    Reading jng_image from color_blob.");
 
   assert(color_image_info != (ImageInfo *) NULL);
-  (void) FormatLocaleString(color_image_info->filename,MagickPathExtent,"%s",
-    color_image->filename);
+  (void) FormatLocaleString(color_image_info->filename,MagickPathExtent,
+    "jpeg:%s",color_image->filename);
 
   color_image_info->ping=MagickFalse;   /* To do: avoid this */
   jng_image=ReadImage(color_image_info,exception);