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compositor: Avoid a crash if the top window actor is finalized

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Since we're not holding a reference, the top window actor might be
finalized when we paint resulting in a use after free crash.

https://bugzilla.gnome.org/show_bug.cgi?id=788493
This commit is contained in:
Rui Matos 2017-10-17 17:17:55 +02:00
parent 12381d57d1
commit 3caefd8fda
1 changed files with 3 additions and 0 deletions
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3
src/compositor/compositor.c
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@ -671,6 +671,9 @@ meta_compositor_remove_window (MetaCompositor *compositor,
if (compositor->unredirected_window == window)
set_unredirected_window (compositor, NULL);
if (compositor->top_window_actor == window_actor)
compositor->top_window_actor = NULL;
meta_window_actor_destroy (window_actor);
}