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background-image: Properly clear the failed to be filled texture pointer

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Otherwise we'll unref and effectively free it, eventually resulting in
use after free, causing wierd issues like crashes and infinite
recursions.

Related: https://bugzilla.redhat.com/show_bug.cgi?id=1989726
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1979>
This commit is contained in:
Jonas Ådahl
2021-08-31 09:47:59 +02:00
parent 04994ebddf
commit ef8c428ef9
1 changed files with 3 additions and 2 deletions
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5
src/compositor/meta-background-image.c
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@ -199,8 +199,9 @@ file_loaded (GObject *source_object,
pixels, 0,
&local_error))
{
g_warning ("Failed to create texture for background");
cogl_object_unref (texture);
g_warning ("Failed to create texture for background: %s",
local_error->message);
cogl_clear_object (&texture);
}
image->texture = texture;