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  1. Qt
  2. QTBUG-47023

[Regression] Windows: Crash in QApplication constructor when using wide main passing a fake argv array (console application)

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Details

    • Bug
    • Resolution: Done
    • P3: Somewhat important
    • 5.5.1
    • 5.5.0
    • Core: Other
    • None
    • Visual C++ 2010, Windows 7 64bit
    • f9489d08a52fd1f52fcf768d43c58c5cda4f25 (qtbase/5.5, 14.7.2015, 5.5.1)

    Description

      In Visual C++ __argv may be null if the entry point of the application is a wide main.
      This is not checked in qcoreapplication.cpp:isArgvModified when the passed argc and argv are custom strings.
      So this results in a crash at qcoreapplication.cpp:411

      This didn't happen in 5.4.1

      Attachments

        1. Qt5Test.zip
          0.6 kB
        2. qtbug47023_stack.txt
          2 kB
        3. qtbug47023.zip
          2 kB

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-48335 QApplication fails to start on release mode when using Qt as a backend of a plugin (Windows)

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Suggestion - Public suggestions QTBUG-46118 Add support for wmain() on Windows

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported
          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-30330 Windows: assertion if you pass QApplication arguments that are not exactly those retrieved by GetCommandLine()

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-47023
          # Subject Branch Project Status CR V
          121156,2 Windows: Fix crash when using wmain() and passing a fake argv. 5.5 qt/qtbase Status: MERGED +2 0

          Activity

            People

              kleint Friedemann Kleint
              qbprog Thomas
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              Dates

                Created:
                Updated:
                Resolved:

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