Commit 2e18eec6 authored by Michel Dänzer's avatar Michel Dänzer Committed by Michel Dänzer
Browse files

xwayland/present: Destroy sync_callback in xwl_present_cleanup

xwl_present_cleanup frees the struct xwl_present_window memory,
so if there's a pending callback, we have to destroy it to prevent
use-after-free in xwl_present_sync_callback.

Should fix issue #645.
Reviewed-by: Olivier Fourdan's avatarOlivier Fourdan <>
parent f665a9c9
......@@ -123,6 +123,11 @@ xwl_present_cleanup(WindowPtr window)
xwl_present_window->frame_callback = NULL;
if (xwl_present_window->sync_callback) {
xwl_present_window->sync_callback = NULL;
/* Clear remaining events */
xorg_list_for_each_entry_safe(event, tmp, &xwl_present_window->event_list, list) {
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