Application that crashed: kcmshell4
Version of the application: 
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.30-with-gcc-4.3.4-and-usb i686
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
try to start k3bsetup from krunner
but kcmshell crashes
also k3bsetup cannot start from systemsettings

 -- Backtrace:
Application: Модуль настройки KDE (kcmshell4), signal: Aborted
[KCrash Handler]
#6  0xb8099424 in __kernel_vsyscall ()
#7  0xb7f4d8e0 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#8  0xb7f50e15 in *__GI_abort () at abort.c:88
#9  0xb7f846c5 in __libc_message (do_abort=2, fmt=0xb804b0e8 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:173
#10 0xb7f8e824 in malloc_printerr (action=2, str=0xb804b22c "double free or corruption (fasttop)", ptr=0x9e1bcf0) at malloc.c:6239
#11 0xb7f900b3 in _int_free (av=0xb80673c0, p=0x9e1bce8) at malloc.c:4772
#12 0xb7f930ad in *__GI___libc_free (mem=0x9e1bcf0) at malloc.c:3738
#13 0xb440c55d in ?? () from /usr/lib/libpolkit.so.2
#14 0xb4402cb8 in polkit_context_unref () from /usr/lib/libpolkit.so.2
#15 0xb5ea66f1 in PolkitQt::Context::Private::init() () from /usr/lib/libpolkit-qt-core.so.0
#16 0xb5ea823d in PolkitQt::Context::hasError() const () from /usr/lib/libpolkit-qt-core.so.0
#17 0xb5ea21ee in PolkitQt::Auth::isCallerAuthorized(_PolKitAction*, long long, bool) () from /usr/lib/libpolkit-qt-core.so.0
#18 0xb461d6c3 in PolkitQt::Action::Private::computePkResult() () from /usr/lib/libpolkit-qt-gui.so.0
#19 0xb461e949 in PolkitQt::Action::setPolkitAction(QString const&) () from /usr/lib/libpolkit-qt-gui.so.0
#20 0xb461eb56 in PolkitQt::Action::Action(QString const&, QObject*) () from /usr/lib/libpolkit-qt-gui.so.0
#21 0xb462df84 in K3bSetup (this=0x9e17898, parent=0x9cbccb8) at /build/buildd/k3b-1.68.0~alpha3/k3bsetup/k3bsetup.cpp:78
#22 0xb4630d6f in KPluginFactory::createInstance<K3bSetup, QWidget> (parentWidget=0x0, parent=0x9cbccb8, args=...) at /usr/include/kpluginfactory.h:461
#23 0xb7afee87 in KPluginFactory::create (this=0x9cceb88, iface=0xb7eb1600 "KCModule", parentWidget=0x0, parent=0x9cbccb8, args=..., keyword=...) at ../../kdecore/util/kpluginfactory.cpp:191
#24 0xb7ef2c47 in KPluginFactory::create<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x9cbccb8, args=...) at ../../kdecore/util/kpluginfactory.h:515
#25 KService::createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x9cbccb8, args=...) at ../../kdecore/services/kservice.h:517
#26 KService::createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x9cbccb8, args=...) at ../../kdecore/services/kservice.h:494
#27 KService::createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x9cbccb8, args=...) at ../../kdecore/services/kservice.h:534
#28 KCModuleLoader::loadModule (mod=..., report=KCModuleLoader::Inline, parent=0x9cbccb8, args=...) at ../../kutils/kcmoduleloader.cpp:89
#29 0xb7ef8a67 in KCModuleProxyPrivate::loadModule (this=0x9cbd280) at ../../kutils/kcmoduleproxy.cpp:104
#30 0xb7ef9bb3 in KCModuleProxy::realModule (this=0x9cbccb8) at ../../kutils/kcmoduleproxy.cpp:81
#31 0xb7ef9d18 in KCModuleProxy::buttons (this=0x9cbccb8) at ../../kutils/kcmoduleproxy.cpp:297
#32 0xb7ef4162 in KCMultiDialogPrivate::updateButtons (this=0x9ca0880, currentModule=0x9cbccb8) at ../../kutils/kcmultidialog.cpp:71
#33 0xb7ef53ee in KCMultiDialog::addModule (this=0x9ca0390, moduleInfo=..., parentItem=0x0, args=...) at ../../kutils/kcmultidialog.cpp:342
#34 0xb80708f3 in kdemain (_argc=2, _argv=0xbffef8a4) at ../../kcmshell/main.cpp:260
#35 0x080485b2 in main (argc=) at kcmshell4_dummy.cpp:3

Reported using DrKonqi