From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 28 Jan 2018 15:44:49 +0000 (-0500)
Subject: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5774
X-Git-Tag: 7.0.7-23~234
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b97639b616a7c42736293a30d174d4ada01d4ec0;p=imagemagick

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5774
---

diff --git a/coders/sgi.c b/coders/sgi.c
index a3e67c9bc..807848d45 100644
--- a/coders/sgi.c
+++ b/coders/sgi.c
@@ -389,6 +389,8 @@ static Image *ReadSGIImage(const ImageInfo *image_info,ExceptionInfo *exception)
     if (pixel_info == (MemoryInfo *) NULL)
       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
     pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
+    (void) ResetMagickMemory(pixels,0,iris_info.columns*iris_info.rows*4*
+      bytes_per_pixel*sizeof(*pixels));
     if ((int) iris_info.storage != 0x01)
       {
         unsigned char