From b6d3a912fd89a70684fcd1e202e5f9ad1472ee83 Mon Sep 17 00:00:00 2001
From: Manish Singh <yosh@gimp.org>
Date: Wed, 25 Aug 2004 22:32:54 +0000
Subject: [PATCH] Guard against bogus logical screen dimensions. Fixes bug
 #151053.

2004-08-25  Manish Singh  <yosh@gimp.org>

        * plug-ins/common/gifload.c: Guard against bogus logical screen
        dimensions. Fixes bug #151053.
---
 ChangeLog                 | 5 +++++
 plug-ins/common/gifload.c | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index a4e2e9b485..e8594aa126 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-08-25  Manish Singh  <yosh@gimp.org>
+
+	* plug-ins/common/gifload.c: Guard against bogus logical screen
+	dimensions. Fixes bug #151053.
+
 2004-08-26  DindinX  <david@dindinx.org>
 
 	* app/widgets/gimppreview-popup.c
diff --git a/plug-ins/common/gifload.c b/plug-ins/common/gifload.c
index 37811082f6..22ffdb6a4c 100644
--- a/plug-ins/common/gifload.c
+++ b/plug-ins/common/gifload.c
@@ -844,6 +844,13 @@ ReadImage (FILE        *fd,
 
   if (frame_number == 1 )
     {
+      /* Guard against bogus logical screen size values */
+      if (screenwidth == 0)
+	screenwidth = len;
+
+      if (screenheight == 0)
+	screenheight = height;
+
       image_ID = gimp_image_new (screenwidth, screenheight, GIMP_INDEXED);
       gimp_image_set_filename (image_ID, filename);