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[imagemagick] / MagickCore / color.c

diff --git a/MagickCore/color.c b/MagickCore/color.c
index 02886761d71e795be2faaabbe1723868448cdf91..d2fa27635b044eb424445f0e6a859998ba2b26a4 100644 (file)
--- 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;