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  1. Qt
  2. QTBUG-95185

"camera" sample project crashes switching devices

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    • macOS
    • 4f663099d6e1119ec5980b79ab7736eedadc1e6d (qt/qtmultimedia/dev) 437642cddac61ca652600a70bffcb74ed541b71f (qt/qtmultimedia/6.2)

    Description

      1. Launch the "camera" sample project
      2. from the Devices menu, choose a different camera
      3. <-- here you will simply crash in Qt code
      bool QObject::disconnect(const QObject *sender, const char *signal,
                         const QObject *receiver, const char *method)
{
    if (sender == nullptr || (receiver == nullptr && method != nullptr)) {
        qWarning("QObject::disconnect: Unexpected nullptr parameter");
        return false;
    } <--- crash here, "this" is NUL

      does not happen on Windows (works fine there). not tested on linux.

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            dorisverria Doris Verria
            davecotter David M. Cotter
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              Updated:
              Resolved:

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