[Bug 145904] KDesktop_lock crashed when click cancel

[Kylin Huang]

Public bug reported:

I locked screen, and move my mouse, a dialog with three bottons appeard, 
 When I click "cancel", KDesktop_lock crashed: 
 It crashes every time. 
 
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 Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". 
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 [Thread debugging using libthread_db enabled] 
 [New Thread -1233676592 (LWP 2545)] 
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 [KCrash handler] 
 #6  0xb4e7658b in scim::QScimInputContext::slot_hide_preedit_string () 
    from /usr/lib/qt3/plugins/inputmethods/libqscim.so 
 #7  0xb4e7edc2 in scim::FunctionSlot1<void, scim::IMEngineInstanceBase*>::call 
     () from /usr/lib/qt3/plugins/inputmethods/libqscim.so 
 #8  0xb4dd354c in scim::IMEngineInstanceBase::hide_preedit_string () 
    from /usr/lib/libscim-1.0.so.8 
 #9  0xb4d2fad3 in scim::SocketInstance::do_transaction () 
    from /usr/lib/scim-1.0/1.4.0/IMEngine/socket.so 
 #10 0xb4d31f76 in scim::SocketInstance::commit_transaction () 
    from /usr/lib/scim-1.0/1.4.0/IMEngine/socket.so 
 #11 0xb4d3276a in scim::SocketInstance::reset () 
    from /usr/lib/scim-1.0/1.4.0/IMEngine/socket.so 
 #12 0xb4e75350 in scim::QScimInputContext::reset () 
    from /usr/lib/qt3/plugins/inputmethods/libqscim.so 
 #13 0xb4ebb2e9 in QMultiInputContext::reset () 
    from /usr/lib/qt3/plugins/inputmethods/libqimsw-multi.so 
 #14 0xb76c4c91 in QWidget::resetInputContext () from /usr/lib/libqt-mt.so.3 
 #15 0xb78450e5 in QLineEdit::setText () from /usr/lib/libqt-mt.so.3 
 #16 0xb69d3023 in KPasswordEdit::focusInEvent () from /usr/lib/libkdeui.so.4 
 #17 0xb779a9c2 in QWidget::event () from /usr/lib/libqt-mt.so.3 
 #18 0xb7844b4b in QLineEdit::event () from /usr/lib/libqt-mt.so.3 
 #19 0xb69d2cd3 in KPasswordEdit::event () from /usr/lib/libkdeui.so.4 
 #20 0xb76faa60 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3 
 #21 0xb76fd42a in QApplication::notify () from /usr/lib/libqt-mt.so.3 
 #22 0xb7ebece2 in KApplication::notify () from /usr/lib/libkdecore.so.4 
 #23 0xb768d1e9 in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3 
 #24 0xb791785b in QDialog::show () from /usr/lib/libqt-mt.so.3 
 #25 0x08054451 in ?? () 
 #26 0xbfd91f7c in ?? () 
 #27 0x00000000 in ?? ()

** Affects: kdebase (Ubuntu)
     Importance: Undecided
         Status: New

-- 
KDesktop_lock crashed when click cancel 
https://bugs.launchpad.net/bugs/145904
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