From 9d846f8bb85a8a11f546940e315c09f7e1973b7a Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Tue, 14 Aug 2018 09:31:19 -0400
Subject: [PATCH] ...

---
 coders/mat.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/coders/mat.c b/coders/mat.c
index 259c8158b..0f9a5f448 100644
--- a/coders/mat.c
+++ b/coders/mat.c
@@ -1117,7 +1117,9 @@ MATLAB_KO:
       (void) LogMagickEvent(CoderEvent,GetMagickModule(),
         "MATLAB_HDR.CellType: %.20g",(double) CellType);
 
-    (void) ReadBlob(image2, 4, (unsigned char *) &size);     /* data size */
+    /* data size */
+    if (ReadBlob(image2, 4, (unsigned char *) &size) != 4)
+      goto MATLAB_KO;
 
     NEXT_FRAME:
     switch (CellType)
-- 
2.40.0