Application that crashed: nspluginviewer
Version of the application: 
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.32-trunk-686 i686
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
http://www.spiegel.de/sport/fussball/0,1518,684788,00.html

HIghly reproducible, just another page opened.

 -- Backtrace:
Application: nspluginviewer (nspluginviewer), signal: Segmentation fault
[KCrash Handler]
#6  0x00000000 in ?? ()
#7  0xb56d12c8 in nsPluginInstance::getCurrentPageURL() const () from /usr/lib/mozilla/plugins/flash-mozilla.so
#8  0xb56d14cc in nsPluginInstance::startProc(unsigned long) () from /usr/lib/mozilla/plugins/flash-mozilla.so
#9  0xb56d26e9 in nsPluginInstance::NewStream(char*, _NPStream*, unsigned char, unsigned short*) () from /usr/lib/mozilla/plugins/flash-mozilla.so
#10 0xb56d4393 in NPP_NewStream () from /usr/lib/mozilla/plugins/flash-mozilla.so
#11 0x0804fc1d in NSPluginInstance::NPNewStream (this=0x0, type=0x8d2e1e2 "a", stream=0x8cefc30, seekable=0 '\000', stype=0x0) at ../../../../apps/nsplugins/viewer/nsplugin.cpp:1068
#12 0x08059620 in NSPluginStreamBase::inform (this=0x8cefc88) at ../../../../apps/nsplugins/viewer/nsplugin.cpp:1533
#13 0x08059bd7 in NSPluginStreamBase::pump (this=0x8cefc88) at ../../../../apps/nsplugins/viewer/nsplugin.cpp:1649
#14 0x08059ca1 in NSPluginStream::data (this=0x8cefc88, data=...) at ../../../../apps/nsplugins/viewer/nsplugin.cpp:1870
#15 0x08059f2b in NSPluginStream::qt_metacall (this=0x8cefc88, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xbfc52b04) at ./nsplugin.moc:137
#16 0xb6c43303 in QMetaObject::activate (sender=0x8ce7c30, from_signal_index=40, to_signal_index=40, argv=0xbfc52b04) at kernel/qobject.cpp:3112
#17 0xb6c43f42 in QMetaObject::activate (sender=0x8ce7c30, m=0xb7573f70, local_signal_index=0, argv=0xbfc52b04) at kernel/qobject.cpp:3186
#18 0xb73bd609 in KIO::TransferJob::data (this=0x8ce7c30, _t1=0x8ce7c30, _t2=...) at ./jobclasses.moc:364
#19 0xb73bde52 in KIO::TransferJob::slotData (this=0x8ce7c30, _data=...) at ../../kio/kio/job.cpp:903
#20 0xb73c3705 in KIO::TransferJob::qt_metacall (this=0x8ce7c30, _c=QMetaObject::InvokeMetaMethod, _id=48, _a=0xbfc52c48) at ./jobclasses.moc:344
#21 0xb6c43303 in QMetaObject::activate (sender=0x8d08d78, from_signal_index=4, to_signal_index=4, argv=0xbfc52c48) at kernel/qobject.cpp:3112
#22 0xb6c43f42 in QMetaObject::activate (sender=0x8d08d78, m=0xb7576b84, local_signal_index=0, argv=0xbfc52c48) at kernel/qobject.cpp:3186
#23 0xb7490133 in KIO::SlaveInterface::data (this=0x8d08d78, _t1=...) at ./slaveinterface.moc:140
#24 0xb7494097 in KIO::SlaveInterface::dispatch (this=0x8d08d78, _cmd=100, rawdata=...) at ../../kio/kio/slaveinterface.cpp:163
#25 0xb74904d3 in KIO::SlaveInterface::dispatch (this=0x8d08d78) at ../../kio/kio/slaveinterface.cpp:91
#26 0xb74826ca in KIO::Slave::gotInput (this=0x8d08d78) at ../../kio/kio/slave.cpp:322
#27 0xb7484ac3 in KIO::Slave::qt_metacall (this=0x8d08d78, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0xbfc52ed8) at ./slave.moc:76
#28 0xb6c43303 in QMetaObject::activate (sender=0x8d099b8, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3112
#29 0xb6c43f42 in QMetaObject::activate (sender=0x8d099b8, m=0xb75734c0, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3186
#30 0xb738bfc7 in KIO::Connection::readyRead (this=0x8d099b8) at ./connection.moc:86
#31 0xb738dd8e in KIO::ConnectionPrivate::dequeue (this=0x8d0ac28) at ../../kio/kio/connection.cpp:82
#32 0xb738debe in KIO::Connection::qt_metacall (this=0x8d099b8, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0x8d31490) at ./connection.moc:73
#33 0xb6c3cb0b in QMetaCallEvent::placeMetaCall (this=0x8d2ec18, object=0x8d099b8) at kernel/qobject.cpp:477
#34 0xb6c3e5e0 in QObject::event (this=0x8d099b8, e=0x8d2ec18) at kernel/qobject.cpp:1110
#35 0xb626da94 in QApplicationPrivate::notify_helper (this=0x8c680e0, receiver=0x8d099b8, e=0x8d2ec18) at kernel/qapplication.cpp:4065
#36 0xb6275bee in QApplication::notify (this=0xbfc537a4, receiver=0x8d099b8, e=0x8d2ec18) at kernel/qapplication.cpp:3605
#37 0xb713fe2a in KApplication::notify (this=0xbfc537a4, receiver=0x8d099b8, event=0x8d2ec18) at ../../kdeui/kernel/kapplication.cpp:302
#38 0xb6c2e1eb in QCoreApplication::notifyInternal (this=0xbfc537a4, receiver=0x8d099b8, event=0x8d2ec18) at kernel/qcoreapplication.cpp:610
#39 0xb6c2ee2e in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x8c3edd8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8c3edd8) at kernel/qcoreapplication.cpp:1247
#41 0xb6c2f00d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#42 0xb6c594cf in QCoreApplication::sendPostedEvents (s=0x8c6a310) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#43 postEventSourceDispatch (s=0x8c6a310) at kernel/qeventdispatcher_glib.cpp:276
#44 0xb75b8b38 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#45 0xb75bc3d0 in ?? () from /lib/libglib-2.0.so.0
#46 0xb75bc503 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#47 0xb6c59041 in QEventDispatcherGlib::processEvents (this=0x8c3eb28, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#48 0xb630d305 in QGuiEventDispatcherGlib::processEvents (this=0x8c3eb28, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#49 0xb6c2c83a in QEventLoop::processEvents (this=0xbfc53690, flags=...) at kernel/qeventloop.cpp:149
#50 0xb6c2cc82 in QEventLoop::exec (this=0xbfc53690, flags=...) at kernel/qeventloop.cpp:201
#51 0xb6c2f0d9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#52 0xb626d917 in QApplication::exec () at kernel/qapplication.cpp:3525
#53 0x0805c5d0 in main (argc=3, argv=0xbfc538f4) at ../../../../apps/nsplugins/viewer/viewer.cpp:144

This bug may be a duplicate of or related to bug 231490

Reported using DrKonqi