From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 23 Apr 2016 01:34:56 +0000 (-0400)
Subject: https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=29496
X-Git-Tag: 7.0.1-0~29
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=46f5a05f2c93fe6443c43d70705c15b1b5c69a4f;p=imagemagick

https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=29496
---

diff --git a/MagickCore/cache.c b/MagickCore/cache.c
index ff87e9442..9ff8dec53 100644
--- a/MagickCore/cache.c
+++ b/MagickCore/cache.c
@@ -2870,6 +2870,8 @@ MagickPrivate const Quantum *GetVirtualPixelsFromNexus(const Image *image,
           s+=length*cache_info->metacontent_extent;
         }
     }
+    if (u < (ssize_t) columns)
+      break;
   }
   /*
     Free resources.
@@ -2877,6 +2879,8 @@ MagickPrivate const Quantum *GetVirtualPixelsFromNexus(const Image *image,
   if (virtual_metacontent != (void *) NULL)
     virtual_metacontent=(void *) RelinquishMagickMemory(virtual_metacontent);
   virtual_nexus=DestroyPixelCacheNexus(virtual_nexus,1);
+  if (v < (ssize_t) rows)
+    return((const Quantum *) NULL);
   return(pixels);
 }