From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 30 Sep 2017 14:51:10 +0000 (-0400)
Subject: https://github.com/ImageMagick/ImageMagick/issues/821
X-Git-Tag: 7.0.7-5~16
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8d6e7a8151d7166246be4766900309d1ca6e6154;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/821
---

diff --git a/MagickCore/xwindow.c b/MagickCore/xwindow.c
index 92b88c4ce..dc75ec89e 100644
--- a/MagickCore/xwindow.c
+++ b/MagickCore/xwindow.c
@@ -2160,20 +2160,12 @@ static void XDitherImage(Image *image,XImage *ximage,ExceptionInfo *exception)
   for (i=0; i < 2; i++)
     for (j=0; j < 16; j++)
     {
-      red_map[i][j]=(unsigned char *) AcquireQuantumMemory(256UL,
+      red_map[i][j]=(unsigned char *) AcquireCriticalMemory(256UL*
         sizeof(*red_map));
-      green_map[i][j]=(unsigned char *) AcquireQuantumMemory(256UL,
+      green_map[i][j]=(unsigned char *) AcquireCriticalMemory(256UL*
         sizeof(*green_map));
-      blue_map[i][j]=(unsigned char *) AcquireQuantumMemory(256UL,
+      blue_map[i][j]=(unsigned char *) AcquireCriticalMemory(256UL*
         sizeof(*blue_map));
-      if ((red_map[i][j] == (unsigned char *) NULL) ||
-          (green_map[i][j] == (unsigned char *) NULL) ||
-          (blue_map[i][j] == (unsigned char *) NULL))
-        {
-          ThrowXWindowException(ResourceLimitError,"MemoryAllocationFailed",
-            image->filename);
-          return;
-        }
     }
   /*
     Initialize dither tables.