From: Cristy <urban-warrior@imagemagick.org>
Date: Wed, 26 Apr 2017 19:26:21 +0000 (-0400)
Subject: https://github.com/ImageMagick/ImageMagick/issues/443
X-Git-Tag: 7.0.5-6~54
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5b1b7895bb5c75596942e5c642ea44b0dd13ddec;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/443
---

diff --git a/coders/sfw.c b/coders/sfw.c
index b3526a760..5d2cc60c2 100644
--- a/coders/sfw.c
+++ b/coders/sfw.c
@@ -260,7 +260,10 @@ static Image *ReadSFWImage(const ImageInfo *image_info,ExceptionInfo *exception)
   count=ReadBlob(image,(size_t) GetBlobSize(image),buffer);
   if ((count != (ssize_t) GetBlobSize(image)) ||
       (LocaleNCompare((char *) buffer,"SFW",3) != 0))
-    ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+    {
+      buffer=(unsigned char *) RelinquishMagickMemory(buffer);
+      ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+    }
   (void) CloseBlob(image);
   /*
     Find the start of the JFIF data