1633462 - Crash in [@ XGetWindowAttributes]

Status: RESOLVED DUPLICATE of bug 1603839

(Core :: Widget: Gtk, defect)

Description

[Gabriele Svelto [:gsvelto] (PTO)]

This bug is for crash report bp-80ae65b7-334b-4cd1-b38d-0fc650200425.

Top 10 frames of crashing thread:

0 libX11.so.6 XGetWindowAttributes 
1 libxul.so mozilla::widget::GtkCompositorWidget::GtkCompositorWidget widget/gtk/GtkCompositorWidget.cpp:42
2 libxul.so mozilla::widget::CompositorWidgetParent::CompositorWidgetParent widget/gtk/CompositorWidgetParent.cpp:16
3 libxul.so mozilla::layers::CompositorBridgeParent::AllocPCompositorWidgetParent gfx/layers/ipc/CompositorBridgeParent.cpp:2202
4 libxul.so mozilla::layers::PCompositorBridgeParent::OnMessageReceived ipc/ipdl/PCompositorBridgeParent.cpp:1073
5 libxul.so mozilla::layers::PCompositorManagerParent::OnMessageReceived ipc/ipdl/PCompositorManagerParent.cpp:197
6 libxul.so mozilla::ipc::MessageChannel::DispatchMessage ipc/glue/MessageChannel.cpp:2186
7 libxul.so mozilla::ipc::MessageChannel::MessageTask::Run ipc/glue/MessageChannel.cpp:1989
8 libxul.so base::MessagePumpDefault::Run ipc/chromium/src/base/message_pump_default.cc:35
9 libxul.so MessageLoop::Run ipc/chromium/src/base/message_loop.cc:290

The first crash with this stack is for buildid 20200424114754. For now it seems like we have distinct crashes coming from only 3 users, two of which are on arch. Eyeballing the code and the crash address this looks like a NULL pointer dereference either from mXDisplay or mXWindow.

Comment 1

[Martin Stránský [:stransky] (ni? me)]

This is a dupe of Bug 1603839.