From: Cristy <urban-warrior@imagemagick.org>
Date: Fri, 16 Feb 2018 12:40:07 +0000 (-0500)
Subject: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6406
X-Git-Tag: 7.0.7-23~29
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=17e4cde10e8f05964f9d5f79599d6691f366e54b;p=imagemagick

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6406
---

diff --git a/coders/mat.c b/coders/mat.c
index 24cd32d2f..ba96f8fc9 100644
--- a/coders/mat.c
+++ b/coders/mat.c
@@ -877,7 +877,6 @@ static Image *ReadMATImage(const ImageInfo *image_info,ExceptionInfo *exception)
   int sample_size;
   MagickOffsetType filepos=0x80;
   BlobInfo *blob;
-  size_t one;
 
   unsigned int (*ReadBlobXXXLong)(Image *image);
   unsigned short (*ReadBlobXXXShort)(Image *image);
@@ -1162,8 +1161,7 @@ RestoreMSCWarning
     (void) sample_size;
     image->columns = MATLAB_HDR.SizeX;
     image->rows = MATLAB_HDR.SizeY;
-    one=1;
-    image->colors = one << image->depth;
+    image->colors = GetQuantumRange(image->depth);
     if (image->columns == 0 || image->rows == 0)
       goto MATLAB_KO;
     if((unsigned long)ldblk*MATLAB_HDR.SizeY > MATLAB_HDR.ObjectSize)