From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 23 Jul 2017 14:40:17 +0000 (-0400)
Subject: https://github.com/ImageMagick/ImageMagick/issues/599
X-Git-Tag: 7.0.6-3~21
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ac38f521356b576ab57c2e74cc541548d80a8bdc;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/599
---

diff --git a/coders/mat.c b/coders/mat.c
index 6b08f765e..14dde7d10 100644
--- a/coders/mat.c
+++ b/coders/mat.c
@@ -933,7 +933,8 @@ static Image *ReadMATImage(const ImageInfo *image_info,ExceptionInfo *exception)
   if (strncmp(MATLAB_HDR.identific, "MATLAB", 6))
     {
 MATLAB_KO:
-      clone_info=DestroyImageInfo(clone_info);
+      if (clone_info != (ImageInfo *) NULL)
+        clone_info=DestroyImageInfo(clone_info);
       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
     }