From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Wed, 3 May 2017 21:58:25 +0000 (+0200)
Subject: Added extra check that was reported in #466.
X-Git-Tag: 7.0.5-6~26
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b3299a3f2ec597172b092e9f7b71d2c9e75287c7;p=imagemagick

Added extra check that was reported in #466.
---

diff --git a/coders/icon.c b/coders/icon.c
index 5e854d0cb..67883b166 100644
--- a/coders/icon.c
+++ b/coders/icon.c
@@ -432,7 +432,7 @@ static Image *ReadICONImage(const ImageInfo *image_info,
         {
           image->storage_class=PseudoClass;
           image->colors=icon_info.number_colors;
-          if (image->colors == 0)
+          if ((image->colors == 0) || (image->colors > 256))
             image->colors=one << icon_info.bits_per_pixel;
         }
       if (image->storage_class == PseudoClass)