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  1. Qt
  2. QTBUG-73833

Crash dynamic_casting QObject* originating from Qt5WebEngineCore

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3: Somewhat important
    • Resolution: Done
    • Affects Version/s: 5.9.7, 5.12.1
    • Fix Version/s: 5.12.3, 5.14.0 Alpha
    • Component/s: WebEngine
    • Labels:
      None
    • Environment:
    • Platform/s:
      Linux/X11, Windows
    • Commits:
      1f77d4709946511b919810354f19875824399096 (qt/qtwebengine/5.12)

      Description

      The application crashes when dynamic_casting eventFilter()'s first parameter 'QObject obj' to a QWidget. qobject_casting works.

      The crash happens while eventFilter() is called with an obj originating from Qt5WebEngineCored, see attached screenshot.

      A minimal application which reproduces the crash is attached.

       

      PS: There is the class MessagePumpForUIQt which inherits QObject, but has no Q_OBJECT-Macro.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-819 QWebEngineView crashes Python process if ancestor widget processes key events

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-73833
          # Subject Branch Project Status CR V
          253621,2 Fix crash on dynamic_cast in global event filter 5.12 qt/qtwebengine Status: MERGED +2 0

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              People

              • Assignee:
                qt_webengine_team Qt WebEngine Team
                Reporter:
                qv Adi T
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                Dates

                • Created:
                  Updated:
                  Resolved:

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