From a31a727484794644b37a1de0b21c0ced859a0302 Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Sun, 18 May 2014 17:39:02 +0000
Subject: [PATCH]

---
 MagickCore/color.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MagickCore/color.c b/MagickCore/color.c
index 02886761d..d2fa27635 100644
--- a/MagickCore/color.c
+++ b/MagickCore/color.c
@@ -1770,8 +1770,12 @@ MagickExport MagickBooleanType IsEquivalentImage(const Image *image,
         for (i=0; i < (ssize_t) target_image->columns; i++)
         {
           p=GetCacheViewVirtualPixels(image_view,x+i,y+j,1,1,exception);
+          if (p == (const Quantum *) NULL)
+            break;
           GetPixelInfoPixel(image,p,&pixel);
           q=GetCacheViewVirtualPixels(target_view,i,j,1,1,exception);
+          if (q == (const Quantum *) NULL)
+            break;
           GetPixelInfoPixel(image,q,&target);
           if (IfMagickFalse(IsFuzzyEquivalencePixelInfo(&pixel,&target)))
             break;
-- 
2.50.1