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  1. Qt
  2. QTBUG-94067

Runtime error in qv4stackframe

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Details

    • 0b10b83dad91b44559b9f4ddcf9d8bed5544de93 (qt/qtdeclarative/dev) b140d12fca7228e6234c2acd7d3c1a17d0cb850f (qt/qtdeclarative/6.1)

    Description

      1. Configure Qt with "-sanitize undefined".
      2. Build Qt.
      3. Build the attached project using this build of Qt: 
        #include <QCoreApplication>
#include <QJSEngine>

int main(int argc, char *argv[]) {
    QCoreApplication a(argc, argv);
    QJSEngine().evaluate("1");
    return 0;
}
      4. Run the resulting program.
        You will see output like: 
        /home/qtrob/dev/src/qt-dev-base_declarative_svg-05.20/qtdeclarative/src/qml/jsruntime/qv4stackframe_p.h:236:31: runtime error: null pointer passed as argument 2, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/qtrob/dev/src/qt-dev-base_declarative_svg-05.20/qtdeclarative/src/qml/jsruntime/qv4stackframe_p.h:236:31 in

      Attachments

        1. main.cpp
          0.2 kB
        2. report.pro
          0.1 kB
        For Gerrit Dashboard: QTBUG-94067
        # Subject Branch Project Status CR V
        351430,4 QV4StackFrame: Fix ubsan warning 6.1 qt/qtdeclarative Status: MERGED +2 0
        351533,3 QV4StackFrame: Fix ubsan warning dev qt/qtdeclarative Status: MERGED +2 0

        Activity

          People

            qt.team.quick.subscriptions Qt Quick and Widgets Team
            rlohning Robert Löhning
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            Dates

              Created:
              Updated:
              Resolved:

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