[Webkit-unassigned] [Bug 199205] [WPE][GTK] UI process crash in DrawingAreaProxyCoordinatedGraphics::waitForAndDispatchDidUpdateBackingStoreState

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=199205

Michael Catanzaro <mcatanzaro at igalia.com> changed:

           What    |Removed                     |Added
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                 CC|                            |mcatanzaro at igalia.com

--- Comment #1 from Michael Catanzaro <mcatanzaro at igalia.com> ---
Well m_waitingForMessage is invalid, but not null (this=0x30). But the local variable waitingForMessage looks fine. I *think* we can conclude that the Connection itself is invalid. DrawingAreaProxyCoordinatedGraphics should probably null-check the connection pointer before using it. Naive solution would be:

    if (Connection* connection = process().connection())
        connection->waitForAndDispatchImmediately<Messages::DrawingAreaProxy::DidUpdateBackingStoreState>(m_identifier.toUInt64(), Seconds::fromMilliseconds(500));

And if that's not right, then at least it should ASSERT(connection) before using it.

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