From fbb14283450d3001403e7d9725566dd4fb2c3bb5 Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Tue, 2 May 2017 08:34:04 +0200
Subject: [PATCH] Fixed memory leak reported in #457.

---
 coders/icon.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/coders/icon.c b/coders/icon.c
index ae6a1ed1a..5e854d0cb 100644
--- a/coders/icon.c
+++ b/coders/icon.c
@@ -455,8 +455,12 @@ static Image *ReadICONImage(const ImageInfo *image_info,
             ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
           count=ReadBlob(image,(size_t) (4*image->colors),icon_colormap);
           if (count != (ssize_t) (4*image->colors))
-            ThrowReaderException(CorruptImageError,
-              "InsufficientImageDataInFile");
+            {
+              icon_colormap=(unsigned char *) RelinquishMagickMemory(
+                icon_colormap);
+              ThrowReaderException(CorruptImageError,
+                "InsufficientImageDataInFile");
+            }
           p=icon_colormap;
           for (i=0; i < (ssize_t) image->colors; i++)
           {
-- 
2.40.0