Bug 298716

Application: systemsettings (1.0)
KDE Platform Version: 4.8.2 (4.8.2) "release 494"
Qt Version: 4.8.1
Operating System: Linux 3.1.9-1.4-desktop i686
Distribution: "openSUSE 12.1 (i586)"

-- Information about the crash:
How to reproduce the error:
Start the systemsettings.
Navigate to the System Administration, Actions Policy.
The crash happens every time I try to change any action. Example:
Go to org.freedesktop-->The udisks project.
Select the Mount a Device action and Authenticate to Root with "Remember" option checked.
Now, select the "Local authorizations on the right panel. 
Add a local (existing) user and press OK.

In my installation, it crashes with Segmentation fault (11)

The crash can be reproduced every time.

-- Backtrace:
Application: Ρυθμίσεις συστήματος (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0xb4f4b930 (LWP 19337))]

Thread 2 (Thread 0xb0704b70 (LWP 19423)):
#0  0xb60ecbb4 in poll () from /lib/libc.so.6
#1  0xb57e1f7b in g_poll () from /usr/lib/libglib-2.0.so.0
#2  0xb57d3466 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0xb57d3b6b in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#4  0xb0a1025a in ?? () from /usr/lib/libgio-2.0.so.0
#5  0xb57fa2e4 in ?? () from /usr/lib/libglib-2.0.so.0
#6  0xb58d8a7d in start_thread () from /lib/libpthread.so.0
#7  0xb60f7abe in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb4f4b930 (LWP 19337)):
[KCrash Handler]
#6  0x00000000 in ?? ()
#7  0xb0b38ccb in text (this=0x829e478) at /usr/include/QtGui/qlistwidget.h:90
#8  PolkitKde::ActionWidget::editExplicitPKLAEntry (this=0x93c7e98, item=0x829e478) at /usr/src/debug/polkit-kde-kcmmodules-1-0.98.1+git20110929/polkitactions/ActionWidget.cpp:277
#9  0xb0b2f4f9 in qt_static_metacall (_a=0xbf83fa28, _id=3, _o=0x93c7e98, _c=<optimized out>) at /usr/src/debug/polkit-kde-kcmmodules-1-0.98.1+git20110929/build/polkitactions/moc_ActionWidget.cpp:78
#10 PolkitKde::ActionWidget::qt_static_metacall (_o=0x93c7e98, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbf83fa28) at /usr/src/debug/polkit-kde-kcmmodules-1-0.98.1+git20110929/build/polkitactions/moc_ActionWidget.cpp:69
#11 0xb6415a0f in QMetaObject::activate (sender=0x9441a60, m=0xb738bdac, local_signal_index=2, argv=0xbf83fa28) at kernel/qobject.cpp:3556
#12 0xb702bc85 in QListWidget::itemDoubleClicked (this=0x9441a60, _t1=0x829e478) at .moc/release-shared/moc_qlistwidget.cpp:219
#13 0xb702bcf4 in QListWidgetPrivate::_q_emitItemDoubleClicked (this=0x9368f40, index=...) at itemviews/qlistwidget.cpp:1085
#14 0xb6415a0f in QMetaObject::activate (sender=0x9441a60, m=0xb738ad1c, local_signal_index=2, argv=0xbf83fb38) at kernel/qobject.cpp:3556
#15 0xb6fba375 in QAbstractItemView::doubleClicked (this=0x9441a60, _t1=...) at .moc/release-shared/moc_qabstractitemview.cpp:355
#16 0xb6fba531 in QAbstractItemView::mouseDoubleClickEvent (this=0x9441a60, event=0xbf840404) at itemviews/qabstractitemview.cpp:1846
#17 0xb6a61a35 in QWidget::event (this=0x9441a60, event=0xbf840404) at kernel/qwidget.cpp:8366
#18 0xb6e7eb05 in QFrame::event (this=0x9441a60, e=0xbf840404) at widgets/qframe.cpp:557
#19 0xb6f12511 in QAbstractScrollArea::viewportEvent (this=0x9441a60, e=0xbf840404) at widgets/qabstractscrollarea.cpp:1043
#20 0xb6fb8a8c in QAbstractItemView::viewportEvent (this=0x9441a60, event=0xbf840404) at itemviews/qabstractitemview.cpp:1644
#21 0xb6f14cd6 in viewportEvent (this=<optimized out>, event=0xbf840404) at widgets/qabstractscrollarea_p.h:100
#22 eventFilter (e=0xbf840404, this=<optimized out>, o=<optimized out>) at widgets/qabstractscrollarea_p.h:116
#23 QAbstractScrollAreaFilter::eventFilter (this=0x82270f0, o=0x94041d8, e=0xbf840404) at widgets/qabstractscrollarea_p.h:115
#24 0xb63ff346 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8093ff0, receiver=0x94041d8, event=0xbf840404) at kernel/qcoreapplication.cpp:986
#25 0xb6a074d2 in notify_helper (e=0xbf840404, receiver=0x94041d8, this=0x8093ff0) at kernel/qapplication.cpp:4550
#26 QApplicationPrivate::notify_helper (this=0x8093ff0, receiver=0x94041d8, e=0xbf840404) at kernel/qapplication.cpp:4526
#27 0xb6a0d33c in QApplication::notify (this=0x8093ff0, receiver=0x94041d8, e=0xbf840404) at kernel/qapplication.cpp:4097
#28 0xb759dba1 in KApplication::notify (this=0xbf840c6c, receiver=0x94041d8, event=0xbf840404) at /usr/src/debug/kdelibs-4.8.2/kdeui/kernel/kapplication.cpp:311
#29 0xb63ff1ae in QCoreApplication::notifyInternal (this=0xbf840c6c, receiver=0x94041d8, event=0xbf840404) at kernel/qcoreapplication.cpp:876
#30 0xb6a084c0 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#31 QApplicationPrivate::sendMouseEvent (receiver=0x94041d8, event=0xbf840404, alienWidget=0x94041d8, nativeWidget=0x8157820, buttonDown=0xb739acb4, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3165
#32 0xb6a916b4 in QETWidget::translateMouseEvent (this=0x8157820, event=0xbf8408bc) at kernel/qapplication_x11.cpp:4513
#33 0xb6a9027e in QApplication::x11ProcessEvent (this=0xbf840c6c, event=0xbf8408bc) at kernel/qapplication_x11.cpp:3636
#34 0xb6abb93c in x11EventSourceDispatch (s=0x808c440, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0xb57d2e2f in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#36 0xb57d3560 in ?? () from /usr/lib/libglib-2.0.so.0
#37 0xb57d37fa in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#38 0xb6431e57 in QEventDispatcherGlib::processEvents (this=0x807dda0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#39 0xb6abb53a in QGuiEventDispatcherGlib::processEvents (this=0x807dda0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0xb63fdd1d in QEventLoop::processEvents (this=0xbf840bc4, flags=...) at kernel/qeventloop.cpp:149
#41 0xb63fdfb9 in QEventLoop::exec (this=0xbf840bc4, flags=...) at kernel/qeventloop.cpp:204
#42 0xb640320a in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#43 0xb6a05374 in QApplication::exec () at kernel/qapplication.cpp:3815
#44 0x08050d18 in ?? ()
#45 0xb603b003 in __libc_start_main () from /lib/libc.so.6
#46 0x08050d5d in _start ()

Reported using DrKonqi