Application: plasmashell (5.27.8)
 (Compiled from sources)
Qt Version: 5.15.11
Frameworks Version: 5.110.0
Operating System: Linux 6.1.60-gentoo-dist x86_64
Windowing System: Wayland
Distribution: "Gentoo Linux"
DrKonqi: 5.27.8 [KCrashBackend]

-- Information about the crash:
I enabled a network interface (VLAN) using the context menu of the "Networks" tray icon when plasma crashed.

I do have a rather large number of VLAN interfaces but this crash has not previously occured. After restarting plasma, the network connection was enabled. I could then disable and re-enable it without any issues.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[KCrash Handler]
#4  0x00007fd3476b5f02 in QMetaObject::activate(QObject*, int, void**) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd346456f9a in  () at /usr/lib64/libQt5QmlModels.so.5
#6  0x00007fd34645fa0b in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /usr/lib64/libQt5QmlModels.so.5
#7  0x00007fd34646a8d9 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () at /usr/lib64/libQt5QmlModels.so.5
#8  0x00007fd34646b263 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libQt5QmlModels.so.5
#9  0x00007fd3476bbf37 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fd34763ac16 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () at /usr/lib64/libQt5Core.so.5
#11 0x00007fd34766c87f in  () at /usr/lib64/libQt5Core.so.5
#12 0x00007fd3476bc0dc in  () at /usr/lib64/libQt5Core.so.5
#13 0x00007fd34763ab33 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib64/libQt5Core.so.5
#14 0x00007fd2b9a75377 in NetworkModel::updateItem(NetworkModelItem*) () at /usr/lib64/libplasmanm_internal.so
#15 0x00007fd2b9a7dae1 in NetworkModel::addActiveConnection(QSharedPointer<NetworkManager::ActiveConnection> const&) () at /usr/lib64/libplasmanm_internal.so
#16 0x00007fd2b9a7e126 in NetworkModel::activeConnectionAdded(QString const&) () at /usr/lib64/libplasmanm_internal.so
#17 0x00007fd3476bbfcd in  () at /usr/lib64/libQt5Core.so.5
#18 0x00007fd2b979cf65 in NetworkManager::Notifier::activeConnectionAdded(QString const&) () at /usr/lib64/libKF5NetworkManagerQt.so.6
#19 0x00007fd2b97a2826 in  () at /usr/lib64/libKF5NetworkManagerQt.so.6
#20 0x00007fd2b97a5d43 in  () at /usr/lib64/libKF5NetworkManagerQt.so.6
#21 0x00007fd3480c98bb in  () at /usr/lib64/libQt5DBus.so.5
#22 0x00007fd3476b41c5 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#23 0x00007fd348362eee in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#24 0x00007fd347689fc8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#25 0x00007fd34768d3a4 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#26 0x00007fd3476da483 in  () at /usr/lib64/libQt5Core.so.5
#27 0x00007fd34621326d in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#28 0x00007fd346213518 in  () at /usr/lib64/libglib-2.0.so.0
#29 0x00007fd3462135ac in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#30 0x00007fd3476d9f86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#31 0x00007fd347688a8b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#32 0x00007fd347690a9d in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#33 0x00005560e83679f9 in  ()
#34 0x00007fd346e4f94a in  () at /usr/lib64/libc.so.6
#35 0x00007fd346e4fa05 in __libc_start_main () at /usr/lib64/libc.so.6
#36 0x00005560e8367c31 in  ()
[Inferior 1 (process 195255) detached]

Reported using DrKonqi