From 8fa3c10977f668c92688272a4802f4477df61076 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Fri, 15 Sep 2017 06:10:12 -0400
Subject: [PATCH] https://github.com/ImageMagick/ImageMagick/issues/759

---
 coders/sgi.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/coders/sgi.c b/coders/sgi.c
index dfd2db923..83e4dd348 100644
--- a/coders/sgi.c
+++ b/coders/sgi.c
@@ -647,7 +647,10 @@ static Image *ReadSGIImage(const ImageInfo *image_info,ExceptionInfo *exception)
           Create grayscale map.
         */
         if (AcquireImageColormap(image,image->colors,exception) == MagickFalse)
-          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+          {
+            pixel_info=RelinquishVirtualMemory(pixel_info);
+            ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+          }
         /*
           Convert SGI image to PseudoClass pixel packets.
         */
-- 
2.40.0