File ImageMagick-CVE-2018-17965.patch of Package ImageMagick.29977

diff --git a/coders/sgi.c b/coders/sgi.c
index a17f7f9a2e..b334cb01ca 100644
--- a/coders/sgi.c
+++ b/coders/sgi.c
@@ -1129,6 +1129,7 @@ static MagickBooleanType WriteSGIImage(const ImageInfo *image_info,Image *image,
               runlength=(size_t *) RelinquishMagickMemory(runlength);
             if (packet_info != (MemoryInfo *) NULL)
               packet_info=RelinquishVirtualMemory(packet_info);
+            pixel_info=RelinquishVirtualMemory(pixel_info);
             ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
           }
         packets=(unsigned char *) GetVirtualMemoryBlob(packet_info);