[Webkit-unassigned] [Bug 67941] New: occasional crash in Chromium in dispatching keyEvent

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=67941

           Summary: occasional crash in Chromium in dispatching keyEvent
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Event Handling
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: scottmg at chromium.org


Chromium bug: http://code.google.com/p/chromium/issues/detail?id=96045


The crash is caused by the Document having been detached when processing the KeyEvent.

The invalid access is at 0x324 which is the offset of the m_focusedNode member of WebCore::Document. So, m_doc of Frame has been nulled at this point. I don't know yet why the ordering or detaching or whatever has changed. WebViewImpl.cpp:~657

    if (handler->keyEvent(evt)) {
        if (WebInputEvent::RawKeyDown == event.type) {
            // Suppress the next keypress event unless the focused node is a plug-in node.
            // (Flash needs these keypress events to handle non-US keyboards.)
--->        Node* node = frame->document()->focusedNode();
            if (!node || !node->renderer() || !node->renderer()->isEmbeddedObject())
                m_suppressNextKeypressEvent = true;
        }
        return true;
    }

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