Bug 434415 - Crash at update firewall policy from System Settings
Summary: Crash at update firewall policy from System Settings
Status: RESOLVED FIXED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_firewall (show other bugs)
Version: 5.21.2
Platform: Neon Linux
: NOR crash
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2021-03-15 00:12 UTC by Rodrigo Paiva
Modified: 2021-04-07 00:22 UTC (History)
5 users (show)

See Also:
Latest Commit:
Version Fixed In: 5.21.4
Sentry Crash Report:


Attachments
New crash information added by DrKonqi (19.68 KB, text/plain)
2021-03-20 15:06 UTC, Charles Dong
Details
New crash information added by DrKonqi (19.17 KB, text/plain)
2021-04-07 00:22 UTC, Anton
Details

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Description Rodrigo Paiva 2021-03-15 00:12:20 UTC
Application: systemsettings5 (5.21.2)

Qt Version: 5.15.2
Frameworks Version: 5.80.0
Operating System: Linux 5.4.0-66-generic x86_64
Windowing System: X11
Drkonqi Version: 5.21.2
Distribution: KDE neon Testing Edition

-- Information about the crash:
- What I was doing when the application crashed:
I was updating the firewall default policy (IN) from Ignore to reject.

- Unusual behavior I noticed:
The application (System Settings) closed unexpectedly.

- Custom settings of the application:
N/A

The crash does not seem to be reproducible.

-- Backtrace:
Application: Configurações do sistema (systemsettings5), signal: Segmentation fault

[New LWP 61680]
[New LWP 61681]
[New LWP 61686]
[New LWP 61695]
[New LWP 61706]
[New LWP 61707]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f6ae99d3aff in __GI___poll (fds=0x7ffc088abae8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f6ae5790500 (LWP 61678))]

Thread 7 (Thread 0x7f6ab5264700 (LWP 61707)):
#0  0x00007f6ae7ba1c63 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f6ae7ba2312 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6ae7ba26f3 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6ab5b84f8a in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f6ae7bcbad1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6ae8561609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f6ae99e0293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f6ab5a65700 (LWP 61706)):
#0  __GI___libc_read (nbytes=16, buf=0x7f6ab5a64c20, fd=34) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=34, buf=0x7f6ab5a64c20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f6ae7beab2f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6ae7ba1ebe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6ae7ba2312 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6ae7ba24a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f6ae7ba24f1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f6ae7bcbad1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f6ae8561609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f6ae99e0293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f6abec87700 (LWP 61695)):
#0  __GI___libc_read (nbytes=16, buf=0x7f6abec86ab0, fd=26) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=26, buf=0x7f6abec86ab0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f6ae7beab2f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6ae7ba1ebe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6ae7ba2312 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6ae7ba24a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f6aea0edffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6aea0921eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f6ae9eaca52 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f6ae91a1fa9 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f6ae9eadbec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f6ae8561609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f6ae99e0293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f6ad4eaa700 (LWP 61686)):
#0  0x00007f6ae7bef4dd in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f6ae7ba18fa in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6ae7ba229b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6ae7ba24a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6aea0edffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6aea0921eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6ae9eaca52 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f6ae91a1fa9 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6ae9eadbec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f6ae8561609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f6ae99e0293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f6adf9f0700 (LWP 61681)):
#0  0x00007f6ae99d3aff in __GI___poll (fds=0x7f6ad80149c0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6ae7ba236e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6ae7ba24a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6aea0edffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f6aea0921eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6ae9eaca52 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6ae8dbdf4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f6ae9eadbec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f6ae8561609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f6ae99e0293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f6ae4bc9700 (LWP 61680)):
#0  0x00007f6ae99d3aff in __GI___poll (fds=0x7f6ae4bc8be8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6ae85a8c1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f6ae85aa90a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f6ae5101d58 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f6ae9eadbec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6ae8561609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f6ae99e0293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f6ae5790500 (LWP 61678)):
[KCrash Handler]
#4  0x00007f6adc085e26 in FirewallClient::capabilities (this=<optimized out>) at ./kcm/core/firewallclient.cpp:155
#5  0x00007f6adc0c0b53 in KCMFirewall::KCMFirewall (this=0x55e84b47bce0, parent=<optimized out>, args=...) at ./kcm/kcm.cpp:36
#6  0x00007f6adc0c44ee in KPluginFactory::createInstance<KCMFirewall, QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:519
#7  0x00007f6aea38ba82 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#8  0x00007f6aeb9a0e58 in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#9  0x00007f6aeb9adc4a in ?? () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#10 0x00007f6aeb9ae298 in KCModuleProxy::realModule() const () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#11 0x00007f6aeb9ae827 in KCModuleProxy::showEvent(QShowEvent*) () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#12 0x00007f6aeacd7c06 in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f6aeac94dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f6aeac9dbb8 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f6aea0936da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f6aeacd45b7 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f6aeacd4519 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f6aeacd4593 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f6aeacd76a3 in QWidgetPrivate::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f6aeacd4501 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f6aeacd4593 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f6aeacd76a3 in QWidgetPrivate::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f6aeacbc134 in QStackedLayout::setCurrentIndex(int) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f6aeacbc3dd in QStackedLayout::setCurrentWidget(QWidget*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f6aeae4e879 in QStackedWidget::setCurrentWidget(QWidget*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f6aeb49a93c in ?? () from /lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#27 0x00007f6aea0ca730 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f6aea0448b4 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f6aea04a058 in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f6aea04d6c2 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f6aea046c8b in QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f6aeb4993c7 in ?? () from /lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#33 0x00007f6aeb49a772 in ?? () from /lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#34 0x00007f6aea0ca730 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f6aea03591a in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f6aeb4a0a30 in KPageWidgetModel::addPage(KPageWidgetItem*) () from /lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#37 0x00007f6ad4fd9d3a in ModuleView::addModule (this=this@entry=0x55e849842100, module=0x55e849848d18, args=...) at ./core/ModuleView.cpp:296
#38 0x00007f6ad4fda11d in ModuleView::loadModule (this=0x55e849842100, menuItem=..., args=...) at ./core/ModuleView.cpp:244
#39 0x00007f6ad4fcb2a2 in SidebarMode::loadModule (this=0x55e8497af380, activeModule=..., args=...) at ./sidebar/SidebarMode.cpp:507
#40 0x00007f6ad4fc8ce6 in SidebarMode::qt_static_metacall (_o=_o@entry=0x55e8497af380, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=20, _a=_a@entry=0x7ffc088ad860) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:160
#41 0x00007f6ad4fc92e3 in SidebarMode::qt_metacall (this=0x55e8497af380, _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0x7ffc088ad860) at ./obj-x86_64-linux-gnu/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:661
#42 0x00007f6ae9135be5 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#43 0x00007f6ae8ffe675 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#44 0x00007f6ae9000777 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#45 0x00007f6ae900195f in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#46 0x00007f6ae90210f1 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#47 0x00007f6ae902302f in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#48 0x00007f6ae8fb024d in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#49 0x00007f6ae9155fa7 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#50 0x00007f6ae90f98ae in QQmlBoundSignalExpression::evaluate(void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#51 0x00007f6ae90fa948 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#52 0x00007f6ae913564d in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#53 0x00007f6ae90d7fbf in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#54 0x00007f6aea0ca285 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00007f6adfd18a81 in QQuickAbstractButtonPrivate::handleRelease(QPointF const&) () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#56 0x00007f6adfd37b19 in QQuickControl::mouseReleaseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#57 0x00007f6ae95685a8 in QQuickItem::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#58 0x00007f6aeac94dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#59 0x00007f6aeac9dbb8 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#60 0x00007f6aea0936da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#61 0x00007f6ae95829e5 in QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#62 0x00007f6ae958410f in QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#63 0x00007f6ae9585039 in QQuickWindowPrivate::handleMouseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#64 0x00007f6aea5aae1d in QWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#65 0x00007f6ae9586aab in QQuickWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#66 0x00007f6aeac94dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#67 0x00007f6aeac9dbb8 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#68 0x00007f6aea0936da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#69 0x00007f6ae98b6dcb in QQuickWidget::mouseReleaseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#70 0x00007f6aeacd7c06 in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#71 0x00007f6ae98b6fa7 in QQuickWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#72 0x00007f6aeac94dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#73 0x00007f6aeac9de77 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#74 0x00007f6aea0936da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#75 0x00007f6aeac9d0a7 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#76 0x00007f6aeacf2e54 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#77 0x00007f6aeacf6174 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#78 0x00007f6aeac94dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#79 0x00007f6aeac9dbb8 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#80 0x00007f6aea0936da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#81 0x00007f6aea59f4e8 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#82 0x00007f6aea5a0b55 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#83 0x00007f6aea5787ac in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#84 0x00007f6ae5102d7e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#85 0x00007f6ae7ba217d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#86 0x00007f6ae7ba2400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#87 0x00007f6ae7ba24a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#88 0x00007f6aea0edfe2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#89 0x00007f6aea0921eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#90 0x00007f6aea09a394 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#91 0x000055e847ee4392 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:222
[Inferior 1 (process 61678) detached]

Possible duplicates by query: bug 434095, bug 433764, bug 433252, bug 433025, bug 433015.

Reported using DrKonqi
Comment 1 tcanabrava 2021-03-15 10:12:05 UTC
This is already fixed in master, if you have access, can you try to compile and test if master crashes for you?
Comment 2 Nate Graham 2021-03-15 21:32:32 UTC

*** This bug has been marked as a duplicate of bug 433025 ***
Comment 3 Rodrigo Paiva 2021-03-17 03:12:14 UTC
Thanks everyone.
I applied updates on my system and now the KDE Frameworks version is 5.81.0
---------------------------------------------
Operating System: KDE neon Testing Edition
KDE Plasma Version: 5.21.3
KDE Frameworks Version: 5.81.0
Qt Version: 5.15.2
Kernel Version: 5.4.0-67-generic
OS Type: 64-bit
---------------------------------------------

How can I compile and test if master crashes? Help-me about it, please. 
:)
Tnx
Comment 4 Nate Graham 2021-03-17 15:46:18 UTC
It has now been cherry-picked to the 5.21 branch.
Comment 5 Charles Dong 2021-03-20 15:06:57 UTC
Created attachment 136890 [details]
New crash information added by DrKonqi

systemsettings5 (5.21.3) using Qt 5.15.2

- What I was doing when the application crashed:
After configuring firewall, when I left and went back to the "firewall" section, the whole settings app crashed.

- Custom settings of the application:
Changed default incoming rules and added some rules.

-- Backtrace (Reduced):
#4  0x00007f2e4022be26 in FirewallClient::capabilities (this=<optimized out>) at ./kcm/core/firewallclient.cpp:155
#5  0x00007f2e40cdbb53 in KCMFirewall::KCMFirewall (this=0x55d7c8fb94c0, parent=<optimized out>, args=...) at ./kcm/kcm.cpp:36
#6  0x00007f2e40cdf4ee in KPluginFactory::createInstance<KCMFirewall, QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:519
#7  0x00007f2e98270a52 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#8  0x00007f2e99884ba8 in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () from /lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
Comment 6 Anton 2021-04-07 00:22:24 UTC
Created attachment 137393 [details]
New crash information added by DrKonqi

systemsettings5 (5.21.3) using Qt 5.15.2

"System settings" crushes after these steps:
1. Write commands in console
sudo iptables -I INPUT -p tcp --dport 1714:1764 -j ACCEPT
sudo iptables -I INPUT -p udp --dport 1714:1764 -j ACCEPT

2. Go to "System settings" -> Firewall
3. Crush

-- Backtrace (Reduced):
#4  0x00007f2037a7de26 in FirewallClient::capabilities (this=<optimized out>) at ./kcm/core/firewallclient.cpp:155
#5  0x00007f2037ac6b53 in KCMFirewall::KCMFirewall (this=0x55f909d991a0, parent=<optimized out>, args=...) at ./kcm/kcm.cpp:36
#6  0x00007f2037aca4ee in KPluginFactory::createInstance<KCMFirewall, QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:519
#7  0x00007f207b20aa52 in KPluginFactory::create (this=this@entry=0x55f9095ce040, iface=0x7f207c6ff0f0 "KQuickAddons::ConfigModule", parentWidget=parentWidget@entry=0x0, parent=parent@entry=0x0, args=..., keyword=...) at ./src/lib/plugin/kpluginfactory.cpp:177
#8  0x00007f207c81eba8 in KPluginFactory::create<KQuickAddons::ConfigModule> (args=..., parent=0x0, this=0x55f9095ce040) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:257