From 399631650b38eaf21c2f3c306b8b74e66be6a0d2 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Fri, 8 Sep 2017 06:16:15 -0400
Subject: [PATCH] https://github.com/ImageMagick/ImageMagick/issues/739

---
 coders/mpc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/coders/mpc.c b/coders/mpc.c
index d628a9a60..680f5595e 100644
--- a/coders/mpc.c
+++ b/coders/mpc.c
@@ -569,8 +569,11 @@ static Image *ReadMPCImage(const ImageInfo *image_info,ExceptionInfo *exception)
                   {
                     image->number_meta_channels=StringToUnsignedLong(options);
                     if (image->number_meta_channels > MaxPixelChannels)
-                      ThrowReaderException(CorruptImageError,
-                        "ImproperImageHeader");
+                      {
+                        options=DestroyString(options);
+                        ThrowReaderException(CorruptImageError,
+                          "ImproperImageHeader");
+                      }
                     break;
                   }
                 break;
-- 
2.50.1