From: Cristy <urban-warrior@imagemagick.org>
Date: Fri, 22 Sep 2017 13:05:14 +0000 (-0400)
Subject: https://github.com/ImageMagick/ImageMagick/issues/774
X-Git-Tag: 7.0.7-4~6
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=875044bb78e52722940ef446be2f1f130f1aca9e;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/774
---

diff --git a/MagickCore/morphology.c b/MagickCore/morphology.c
index 14d8ec154..25c4ad67e 100644
--- a/MagickCore/morphology.c
+++ b/MagickCore/morphology.c
@@ -2334,16 +2334,22 @@ static void ExpandMirrorKernelInfo(KernelInfo *kernel)
   last = kernel;
 
   clone = CloneKernelInfo(last);
+  if (clone == (KernelInfo *) NULL)
+    return;
   RotateKernelInfo(clone, 180);   /* flip */
   LastKernelInfo(last)->next = clone;
   last = clone;
 
   clone = CloneKernelInfo(last);
+  if (clone == (KernelInfo *) NULL)
+    return;
   RotateKernelInfo(clone, 90);   /* transpose */
   LastKernelInfo(last)->next = clone;
   last = clone;
 
   clone = CloneKernelInfo(last);
+  if (clone == (KernelInfo *) NULL)
+    return;
   RotateKernelInfo(clone, 180);  /* flop */
   LastKernelInfo(last)->next = clone;