Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: unity-greeter (Ubuntu Precise)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1048131
Title:
unity-greeter crashed with SIGSEGV in gdk_window_get_type_hint()
Status in “unity-greeter” package in Ubuntu:
Triaged
Status in “unity-greeter” source package in Precise:
Confirmed
Status in “unity-greeter” source package in Quantal:
Won't Fix
Bug description:
[Impact]
Unity Greeter can crash when X clients create X windows. This results in
Ubuntu going to failsafe mode.
When an X window appears Unity Greeter receives a Map event. Unity
Greeter attempts to get a GdkWindow object for the window in the
event. If the window was destroyed before it does this it gets a NULL
pointer. Unity Greeter did not check for this case.
[Test Case]
This is a bug that only occurs if windows rapidly appear and disappear. Can
be verified on machines that are exhibiting the problem (perhaps linked to
indicators failing to start). Check errors.ubuntu.com shows problem does not
occur when fix applied.
[Regression Potential]
Low, the change just checks for the NULL pointer and ignores the map event.
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