Application: kwin_x11 (5.27.5)

Qt Version: 5.15.8
Frameworks Version: 5.103.0
Operating System: Linux 6.1.0-17-amd64 x86_64
Windowing System: X11
Distribution: Debian GNU/Linux 12 (bookworm)
DrKonqi: 5.27.5 [KCrashBackend]

-- Information about the crash:
Switching between applications crashes kwin. Applications being tabed: VSCode, VSCode, Firefox

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault

[KCrash Handler]
#4  0x00005624fdb995a6 in ?? ()
#5  0x00005624fdb99d5b in ?? ()
#6  0x00007f6b9921cb67 in KWin::EffectsHandlerImpl::prePaintWindow(KWin::EffectWindow*, KWin::WindowPrePaintData&, std::chrono::duration<long, std::ratio<1l, 1000l> >) () from /lib/x86_64-linux-gnu/libkwin.so.5
#7  0x00007f6b992b91d3 in KWin::WorkspaceScene::preparePaintSimpleScreen() () from /lib/x86_64-linux-gnu/libkwin.so.5
#8  0x00007f6b992b9685 in KWin::WorkspaceScene::prePaint(KWin::SceneDelegate*) () from /lib/x86_64-linux-gnu/libkwin.so.5
#9  0x00007f6b991d81ef in KWin::Compositor::prePaintPass(KWin::RenderLayer*) () from /lib/x86_64-linux-gnu/libkwin.so.5
#10 0x00007f6b991db37f in KWin::Compositor::composite(KWin::RenderLoop*) () from /lib/x86_64-linux-gnu/libkwin.so.5
#11 0x00007f6b991dd293 in KWin::X11Compositor::composite(KWin::RenderLoop*) () from /lib/x86_64-linux-gnu/libkwin.so.5
#12 0x00007f6b974e8f8f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f6b991900c2 in KWin::RenderLoop::frameRequested(KWin::RenderLoop*) () from /lib/x86_64-linux-gnu/libkwin.so.5
#14 0x00007f6b991e4ed3 in KWin::RenderLoopPrivate::dispatch() () from /lib/x86_64-linux-gnu/libkwin.so.5
#15 0x00007f6b974e8f8f in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f6b974ecdaa in QTimer::timeout(QTimer::QPrivateSignal) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f6b974dd54d in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f6b96b62fae in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f6b974b1738 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f6b97508c71 in QTimerInfoList::activateTimers() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f6b97509504 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f6b951d47a9 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f6b951d4a38 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f6b951d4acc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f6b97509876 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f6b974b01bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f6b974b8316 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00005624fdb2a2d1 in ?? ()
#29 0x00007f6b9644624a in __libc_start_call_main (main=main@entry=0x5624fdb29ef0, argc=argc@entry=3, argv=argv@entry=0x7ffe2c45d228) at ../sysdeps/nptl/libc_start_call_main.h:58
#30 0x00007f6b96446305 in __libc_start_main_impl (main=0x5624fdb29ef0, argc=3, argv=0x7ffe2c45d228, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe2c45d218) at ../csu/libc-start.c:360
#31 0x00005624fdb2b7b1 in ?? ()
[Inferior 1 (process 3229396) detached]

Reported using DrKonqi