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  1. Qt
  2. QTBUG-93039

Crash when scrolling ScrollView with zero-sized item

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Details

    • e7df2279bf5519703fd0b853abaa23947a599920 (qt/qtquickcontrols2/dev) 16d946701d7fc38fce264ffdb4d5443ffcb50514 (qt/tqtc-qtquickcontrols2/5.15) a29d29c020c1d6f7fa5efbb80aa634f43202cd96 (qt/qtquickcontrols2/6.0)

    Description

      import QtQuick
import QtQuick.Controls

ApplicationWindow {
    width: 300
    height: 300
    visible: true

    ScrollView {
        anchors.fill: parent

        contentItem: Item {}
    }
}

      09:35:50: Starting /home/mitch/dev/temp/quick-qmake-qt_dev_debug-Debug/quick-qmake ...
QML debugging is enabled. Only use this in a safe environment.
AddressSanitizer:DEADLYSIGNAL
=================================================================
==96796==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x7f8bd597854f bp 0x7fffb0ccfc50 sp 0x7fffb0ccfc40 T0)
==96796==The signal is caused by a READ memory access.
==96796==Hint: address points to the zero page.
    #0 0x7f8bd597854e in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::get() const /home/mitch/dev/qt-dev/qtbase/src/corelib/tools/qscopedpointer.h:147
    #1 0x7f8bd5987880 in decltype (({parm#1}.get)()) qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > const>(QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > const&) /home/mitch/dev/qt-dev/qtbase/src/corelib/global/qglobal.h:1212
    #2 0x7f8bd59d3a99 in QQuickItem::d_func() const /home/mitch/dev/qt-dev/qtdeclarative/src/quick/items/qquickitem.h:470
    #3 0x7f8bd5a6f98d in QQuickItem::height() const /home/mitch/dev/qt-dev/qtdeclarative/src/quick/items/qquickitem.cpp:6980
    #4 0x7f8bd46a9ad7 in QQuickScrollBarAttachedPrivate::scrollVertical() /home/mitch/dev/qt-dev/qtquickcontrols2/src/quicktemplates2/qquickscrollbar.cpp:1031
    #5 0x7f8bd46ae26f in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (QQuickScrollBarAttachedPrivate::*)()>::call(void (QQuickScrollBarAttachedPrivate::*)(), QQuickScrollBarAttachedPrivate*, void**) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qobjectdefs_impl.h:152
    #6 0x7f8bd46addcb in void QtPrivate::FunctionPointer<void (QQuickScrollBarAttachedPrivate::*)()>::call<QtPrivate::List<>, void>(void (QQuickScrollBarAttachedPrivate::*)(), QQuickScrollBarAttachedPrivate*, void**) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qobjectdefs_impl.h:185
    #7 0x7f8bd46adc20 in QtPrivate::QPrivateSlotObject<void (QQuickScrollBarAttachedPrivate::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qobject_p.h:446
    #8 0x7f8be39950ef in QtPrivate::QSlotObjectBase::call(QObject*, void**) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qobjectdefs_impl.h:375
    #9 0x7f8be3a8dc60 in void doActivate<false>(QObject*, int, void**) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qobject.cpp:3822
    #10 0x7f8be3a7dc0c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qobject.cpp:3882
    #11 0x7f8bd44ce51e in QQuickScrollBar::positionChanged() src/quicktemplates2/QuickTemplates2_autogen/EWIEGA46WW/moc_qquickscrollbar_p.cpp:455
    #12 0x7f8bd46a51db in QQuickScrollBar::setPosition(double) /home/mitch/dev/qt-dev/qtquickcontrols2/src/quicktemplates2/qquickscrollbar.cpp:469
    #13 0x7f8bd46a3af2 in QQuickScrollBarPrivate::handleMove(QPointF const&) /home/mitch/dev/qt-dev/qtquickcontrols2/src/quicktemplates2/qquickscrollbar.cpp:331
    #14 0x7f8bd45ba6d4 in QQuickControl::mouseMoveEvent(QMouseEvent*) /home/mitch/dev/qt-dev/qtquickcontrols2/src/quicktemplates2/qquickcontrol.cpp:1977
    #15 0x7f8bd5a789b7 in QQuickItem::event(QEvent*) /home/mitch/dev/qt-dev/qtdeclarative/src/quick/items/qquickitem.cpp:8334
    #16 0x7f8be39479e7 in QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1200
    #17 0x7f8be3947135 in doNotify /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1129
    #18 0x7f8be3947007 in QCoreApplication::notify(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1115
    #19 0x7f8be63459bc in QGuiApplication::notify(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/gui/kernel/qguiapplication.cpp:1954
    #20 0x7f8be3946e3b in QCoreApplication::notifyInternal2(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1039
    #21 0x7f8be39485f1 in QCoreApplication::sendEvent(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1447
    #22 0x7f8bd605308d in QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem(QQuickItem*, bool, QPointerEvent*, bool) /home/mitch/dev/qt-dev/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:1823
    #23 0x7f8bd6050f4d in QQuickDeliveryAgentPrivate::deliverUpdatedPoints(QPointerEvent*) /home/mitch/dev/qt-dev/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:1677
    #24 0x7f8bd604f37a in QQuickDeliveryAgentPrivate::deliverPointerEvent(QPointerEvent*) /home/mitch/dev/qt-dev/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:1545
    #25 0x7f8bd604bfd3 in QQuickDeliveryAgentPrivate::handleMouseEvent(QMouseEvent*) /home/mitch/dev/qt-dev/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:1365
    #26 0x7f8bd60415f7 in QQuickDeliveryAgent::event(QEvent*) /home/mitch/dev/qt-dev/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:688
    #27 0x7f8bd5d23116 in QQuickWindow::event(QEvent*) /home/mitch/dev/qt-dev/qtdeclarative/src/quick/items/qquickwindow.cpp:1409
    #28 0x7f8be39479e7 in QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1200
    #29 0x7f8be3947135 in doNotify /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1129
    #30 0x7f8be3947007 in QCoreApplication::notify(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1115
    #31 0x7f8be63459bc in QGuiApplication::notify(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/gui/kernel/qguiapplication.cpp:1954
    #32 0x7f8be3946e3b in QCoreApplication::notifyInternal2(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1039
    #33 0x7f8be3948661 in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1459
    #34 0x7f8be6347fe3 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) /home/mitch/dev/qt-dev/qtbase/src/gui/kernel/qguiapplication.cpp:2276
    #35 0x7f8be6346705 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) /home/mitch/dev/qt-dev/qtbase/src/gui/kernel/qguiapplication.cpp:2027
    #36 0x7f8be646cc94 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) /home/mitch/dev/qt-dev/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:1158
    #37 0x7f8bdc221111 in xcbSourceDispatch /home/mitch/dev/qt-dev/qtbase/src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:93
    #38 0x7f8be2cde17c in g_main_context_dispatch (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5217c)
    #39 0x7f8be2cde3ff  (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x523ff)
    #40 0x7f8be2cde4a2 in g_main_context_iteration (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x524a2)
    #41 0x7f8be4160e7d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:429
    #42 0x7f8bdc2216be in QXcbGlibEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) /home/mitch/dev/qt-dev/qtbase/src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:132
    #43 0x7f8be3975d38 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qeventloop.cpp:139
    #44 0x7f8be3976739 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qeventloop.cpp:232
    #45 0x7f8be3948192 in QCoreApplication::exec() /home/mitch/dev/qt-dev/qtbase/src/corelib/kernel/qcoreapplication.cpp:1354
    #46 0x7f8be63457cd in QGuiApplication::exec() /home/mitch/dev/qt-dev/qtbase/src/gui/kernel/qguiapplication.cpp:1886
    #47 0x5636e009e295 in main ../quick-qmake/main.cpp:43
    #48 0x7f8be31160b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
    #49 0x5636e009dc0d in _start (/home/mitch/dev/temp/quick-qmake-qt_dev_debug-Debug/quick-qmake+0x6c0d)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/mitch/dev/qt-dev/qtbase/src/corelib/tools/qscopedpointer.h:147 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::get() const
==96796==ABORTING
09:35:55: /home/mitch/dev/temp/quick-qmake-qt_dev_debug-Debug/quick-qmake exited with code 1

      Attachments

        For Gerrit Dashboard: QTBUG-93039
        # Subject Branch Project Status CR V
        345112,3 ScrollView: fix crash when scrolling with zero-sized item dev qt/qtquickcontrols2 Status: MERGED +2 0
        345180,4 ScrollView: fix crash when scrolling with zero-sized item 6.1 qt/qtquickcontrols2 Status: MERGED +2 0
        345181,3 ScrollView: fix crash when scrolling with zero-sized item 6.0 qt/qtquickcontrols2 Status: MERGED +2 0
        345182,3 ScrollView: fix crash when scrolling with zero-sized item tqtc/lts-5.15 qt/tqtc-qtquickcontrols2 Status: MERGED +2 0

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          People

            mitch_curtis Mitch Curtis
            mitch_curtis Mitch Curtis
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            Dates

              Created:
              Updated:
              Resolved:

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