https://bugzilla.gnome.org/show_bug.cgi?id=735226
gtk+ | Backend: Wayland | unspecified
Summary: Avoid NULL surface access if a window is shown/hidden
within a frame
Classification: Platform
Product: gtk+
Version: unspecified
OS/Version: Mac OS
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: Backend: Wayland
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
CC: [email protected], [email protected]
GNOME version: ---
When investigating bug #734374, I've sometimes seen crashes when triggering the
xdg_popup misbehaviors on touch. Those seem to be due to the popup window being
shown and hidden through popup_done whithin a single frame, so the window
GdkFrameClock gets to be started, but impl->surface is already NULL at the time
after_paint() is called.
I'm attaching a patch to add a check for the window being mapped at that time,
in order to avoid NULL access.
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