Application that crashed: kpackagekit
Version of the application: 0.4.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-16-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
KPageKit, when invoked directly from KDE (nor manually starting the application) crashes when the password is not correct.

 -- Backtrace:
Application: KPackageKit (kpackagekit), signal: Segmentation fault
[KCrash Handler]
#6  QWidget::window (this=0x859b1f0) at kernel/qwidget.cpp:3883
#7  0x00c81d2e in QApplicationPrivate::dispatchEnterLeave (enter=0x8725c68, leave=0x859b1f0) at kernel/qapplication.cpp:2527
#8  0x00c8217a in QApplicationPrivate::sendMouseEvent (receiver=0x8725c68, event=0xbf9d2dc0, alienWidget=0x8725c68, nativeWidget=0x861c0b0, buttonDown=0x14f5aa0, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2908
#9  0x00cf07c0 in QETWidget::translateMouseEvent (this=0x861c0b0, event=0xbf9d440c) at kernel/qapplication_x11.cpp:4409
#10 0x00cefc4b in QApplication::x11ProcessEvent (this=0xbf9d47a0, event=0xbf9d440c) at kernel/qapplication_x11.cpp:3428
#11 0x00d1c502 in x11EventSourceDispatch (s=0x8568fb0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#12 0x0675de88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#13 0x06761730 in ?? () from /lib/libglib-2.0.so.0
#14 0x06761863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#15 0x0225102c in QEventDispatcherGlib::processEvents (this=0x8548f08, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#16 0x00d1bbe5 in QGuiEventDispatcherGlib::processEvents (this=0x8548f08, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#17 0x02224c79 in QEventLoop::processEvents (this=0xbf9d4704, flags=) at kernel/qeventloop.cpp:149
#18 0x022250ca in QEventLoop::exec (this=0xbf9d4704, flags=...) at kernel/qeventloop.cpp:201
#19 0x0222753f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#20 0x00c7add7 in QApplication::exec () at kernel/qapplication.cpp:3525
#21 0x0804e47b in _start ()

Reported using DrKonqi