File gnome-desktop-invalid-size-crash.patch of Package gnome-desktop.16620

From d35c6e0e41ec8c0426d1317b9f28f485b7b4530d Mon Sep 17 00:00:00 2001
From: Mike Gorse <mgorse@suse.com>
Date: Wed, 16 Sep 2020 15:02:30 -0500
Subject: [PATCH] gnome_bg_slide_show_get_current_slide: add NULL check

Ensure that a file is present. Guards against a crash in case of a
malformed xml file.

    Resolves: https://gitlab.gnome.org/GNOME/gnome-desktop/-/issues/169
---
 libgnome-desktop/gnome-bg-slide-show.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libgnome-desktop/gnome-bg-slide-show.c b/libgnome-desktop/gnome-bg-slide-show.c
index cad3cb6c..760ed566 100644
--- a/libgnome-desktop/gnome-bg-slide-show.c
+++ b/libgnome-desktop/gnome-bg-slide-show.c
@@ -543,7 +543,7 @@ gnome_bg_slide_show_get_current_slide (GnomeBGSlideShow  *self,
                         if (is_fixed)
                             *is_fixed = slide->fixed;
 
-                        if (file1)
+                        if (file1 && slide->file1)
                             *file1 = find_best_size (slide->file1, width, height);
 
                         if (file2 && slide->file2)
-- 
2.28.0