Details
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Bug
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Resolution: Invalid
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P1: Critical
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None
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4.8.x, 5.9.2
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None
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QCreator 4.3.1
OS (Kali linux - Debian Based):
Linux kalisanaSH 4.14.0-kali3-amd64 #1 SMP Debian 4.14.12-2kali2 (2018-01-11) x86_64 GNU/Linux
Description
Created Custom TextEdit component with QCompleter only to find out that when the QCompleter popup shows up and i use the mouse button to select it the whole application crashes.
Here is the backtrace of the SEGFAULT:
#0 0x00007ffff7930c93 in QAbstractItemView::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #1 0x00007ffff7970c4f in QListView::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #2 0x00007ffff7725b98 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #3 0x00007ffff77c69de in QFrame::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #4 0x00007ffff7939b8b in QAbstractItemView::viewportEvent(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #5 0x00007ffff69cbf3c in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ffff76e7575 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #7 0x00007ffff76ef3bf in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #8 0x00007ffff69cc258 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007ffff76ee392 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #10 0x00007ffff77405c5 in () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #11 0x00007ffff7742efa in () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 ---Type <return> to continue, or q <return> to quit--- #12 0x00007ffff76e759c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #13 0x00007ffff76eee64 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #14 0x00007ffff69cc258 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff6f2c183 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #16 0x00007ffff6f2dc65 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #17 0x00007ffff6f05cab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #18 0x00007ffff025ad50 in () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #19 0x00007ffff3db0fa7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #20 0x00007ffff3db11e0 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #21 0x00007ffff3db126c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #22 0x00007ffff6a250ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #23 0x00007ffff69ca2aa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ---Type <return> to continue, or q <return> to quit--- #24 0x00007ffff69d3214 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #25 0x0000555555558b05 in main(int, char**) (argc=1, argv=0x7fffffffe1d8) at ../TestingQt5Bug/main.cpp:10
I have also attached the localized version of the code that triggers the crash.