Kwin_wayland core dumping Fedora 42

tried to manually start a session with virtual terminal but it didn’t help

dump:

           PID: 2291 (kwin_wayland)
           UID: 990 (sddm)
           GID: 988 (sddm)
        Signal: 11 (SEGV)
     Timestamp: Wed 2025-04-23 08:30:31 +03 (26min ago)
  Command Line: /usr/bin/kwin_wayland --no-global-shortcuts --no-lockscreen --inputmethod maliit-keyboard --locale1
    Executable: /usr/bin/kwin_wayland
 Control Group: /user.slice/user-990.slice/session-c1.scope
          Unit: session-c1.scope
         Slice: user-990.slice
       Session: c1
     Owner UID: 990 (sddm)
       Boot ID: 1c3a12db30be42a78c805a65c83047c2
    Machine ID: f9e20186b68846898b0cc23477c6818f
      Hostname: fedora
       Storage: /var/lib/systemd/coredump/core.kwin_wayland.990.1c3a12db30be42a78c805a65c83047c2.2291.1745386231000000.zst (present)
  Size on Disk: 4.6M
       Package: kwin/6.3.4-3.fc42
      build-id: 961ee61db557222663e4a3c01c88cae82feee6bc
       Message: Process 2291 (kwin_wayland) of user 990 dumped core.
                
                Module /usr/bin/kwin_wayland from rpm kwin-6.3.4-3.fc42.x86_64
                Module libGL.so.1 from rpm libglvnd-1.7.0-7.fc42.x86_64
                Module libEGL_mesa.so.0 from rpm mesa-25.0.2-3.fc42.x86_64
                Module libtinfo.so.6 from rpm ncurses-6.5-5.20250125.fc42.x86_64
                Module libpciaccess.so.0 from rpm libpciaccess-0.16-15.fc42.x86_64
                Module libedit.so.0 from rpm libedit-3.1-55.20250104cvs.fc42.x86_64
                Module libX11-xcb.so.1 from rpm libX11-1.8.11-1.fc42.x86_64
                Module libdrm_intel.so.1 from rpm libdrm-2.4.124-2.fc42.x86_64
                Module libdrm_amdgpu.so.1 from rpm libdrm-2.4.124-2.fc42.x86_64
                Module libelf.so.1 from rpm elfutils-0.192-9.fc42.x86_64
                Module libxshmfence.so.1 from rpm libxshmfence-1.3.2-6.fc42.x86_64
                Module libsensors.so.4 from rpm lm_sensors-3.6.0-22.fc42.x86_64
                Module libSPIRV-Tools.so from rpm spirv-tools-2025.1-1.fc42.x86_64
                Module libgallium-25.0.2.so from rpm mesa-25.0.2-3.fc42.x86_64
                Module dri_gbm.so from rpm mesa-25.0.2-3.fc42.x86_64
                Module libcrypt.so.2 from rpm libxcrypt-4.4.38-7.fc42.x86_64
                Module libsasl2.so.3 from rpm cyrus-sasl-2.1.28-30.fc42.x86_64
                Module libevent-2.1.so.7 from rpm libevent-2.1.12-15.fc42.x86_64
                Module libunistring.so.5 from rpm libunistring-1.1-9.fc42.x86_64
                Module libgmodule-2.0.so.0 from rpm glib2-2.84.1-1.fc42.x86_64
                Module libpsl.so.5 from rpm libpsl-0.21.5-5.fc42.x86_64
                Module libssh.so.4 from rpm libssh-0.11.1-4.fc42.x86_64
                Module libidn2.so.0 from rpm libidn2-2.3.8-1.fc42.x86_64
                Module libnghttp2.so.14 from rpm nghttp2-1.64.0-3.fc42.x86_64
                Module libimobiledevice-glue-1.0.so.0 from rpm libimobiledevice-glue-1.3.1-2.fc42.x86_64
                Module libusbmuxd-2.0.so.7 from rpm libusbmuxd-2.1.0-3.fc42.x86_64
                Module libssl.so.3 from rpm openssl-3.2.4-3.fc42.x86_64
                Module libduktape.so.207 from rpm duktape-2.7.0-9.fc42.x86_64
                Module libgio-2.0.so.0 from rpm glib2-2.84.1-1.fc42.x86_64
                Module libcurl.so.4 from rpm curl-8.11.1-4.fc42.x86_64
                Module libKF6BreezeIcons.so.6 from rpm kf6-breeze-icons-6.13.0-2.fc42.x86_64
                Module libselinux.so.1 from rpm libselinux-3.8-1.fc42.x86_64
                Module libblkid.so.1 from rpm util-linux-2.40.4-7.fc42.x86_64
                Module libattr.so.1 from rpm attr-2.5.2-5.fc42.x86_64
                Module libplist-2.0.so.4 from rpm libplist-2.6.0-2.fc42.x86_64
                Module libimobiledevice-1.0.so.6 from rpm libimobiledevice-1.3.0^20240916gited9703d-5.fc42.x86_64
                Module libpxbackend-1.0.so from rpm libproxy-0.5.8-2.fc42.x86_64
                Module libbrotlicommon.so.1 from rpm brotli-1.1.0-6.fc42.x86_64
                Module libkeyutils.so.1 from rpm keyutils-1.6.3-5.fc42.x86_64
                Module libkrb5support.so.0 from rpm krb5-1.21.3-5.fc42.x86_64
                Module libcom_err.so.2 from rpm e2fsprogs-1.47.2-3.fc42.x86_64
                Module libk5crypto.so.3 from rpm krb5-1.21.3-5.fc42.x86_64
                Module libkrb5.so.3 from rpm krb5-1.21.3-5.fc42.x86_64
                Module libKF6IconThemes.so.6 from rpm kf6-kiconthemes-6.13.0-2.fc42.x86_64
                Module libKF6IconWidgets.so.6 from rpm kf6-kiconthemes-6.13.0-2.fc42.x86_64
                Module libKF6ItemViews.so.6 from rpm kf6-kitemviews-6.13.0-1.fc42.x86_64
                Module libQt6PrintSupport.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libgobject-2.0.so.0 from rpm glib2-2.84.1-1.fc42.x86_64
                Module libgudev-1.0.so.0 from rpm libgudev-238-7.fc42.x86_64
                Module libxcb-util.so.1 from rpm xcb-util-0.4.1-7.fc42.x86_64
                Module libwayland-cursor.so.0 from rpm wayland-1.23.1-1.fc42.x86_64
                Module libicudata.so.76 from rpm icu-76.1-4.fc42.x86_64
                Module libgraphite2.so.3 from rpm graphite2-1.3.14-18.fc42.x86_64
                Module libXext.so.6 from rpm libXext-1.3.6-3.fc42.x86_64
                Module libpcre2-8.so.0 from rpm pcre2-10.45-1.fc42.x86_64
                Module libxml2.so.2 from rpm libxml2-2.12.10-1.fc42.x86_64
                Module libGLdispatch.so.0 from rpm libglvnd-1.7.0-7.fc42.x86_64
                Module libmount.so.1 from rpm util-linux-2.40.4-7.fc42.x86_64
                Module libacl.so.1 from rpm acl-2.3.2-3.fc42.x86_64
                Module libKF6AuthCore.so.6 from rpm kf6-kauth-6.13.0-1.fc42.x86_64
                Module libKF6Solid.so.6 from rpm kf6-solid-6.13.0-1.fc42.x86_64
                Module libproxy.so.1 from rpm libproxy-0.5.8-2.fc42.x86_64
                Module libbrotlidec.so.1 from rpm brotli-1.1.0-6.fc42.x86_64
                Module libgssapi_krb5.so.2 from rpm krb5-1.21.3-5.fc42.x86_64
                Module libQt6QmlWorkerScript.so.6 from rpm qt6-qtdeclarative-6.9.0-2.fc42.x86_64
                Module libKF6XmlGui.so.6 from rpm kf6-kxmlgui-6.13.0-2.fc42.x86_64
                Module libXi.so.6 from rpm libXi-1.8.2-2.fc42.x86_64
                Module libwacom.so.9 from rpm libwacom-2.15.0-1.fc42.x86_64
                Module libevdev.so.2 from rpm libevdev-1.13.4-1.fc42.x86_64
                Module libmtdev.so.1 from rpm mtdev-1.1.6-10.fc42.x86_64
                Module libexpat.so.1 from rpm expat-2.7.1-1.fc42.x86_64
                Module libxcb-image.so.0 from rpm xcb-util-image-0.4.1-7.fc42.x86_64
                Module libxcb-render-util.so.0 from rpm xcb-util-renderutil-0.3.10-7.fc42.x86_64
                Module libffi.so.8 from rpm libffi-3.4.6-5.fc42.x86_64
                Module libogg.so.0 from rpm libogg-1.3.5-11.fc42.x86_64
                Module libvorbis.so.0 from rpm libvorbis-1.3.7-12.fc42.x86_64
                Module libQt6WaylandClient.so.6 from rpm qt6-qtwayland-6.9.0-2.fc42.x86_64
                Module liblzma.so.5 from rpm xz-5.6.3-3.fc42.x86_64
                Module libbz2.so.1 from rpm bzip2-1.0.8-20.fc42.x86_64
                Module libcrypto.so.3 from rpm openssl-3.2.4-3.fc42.x86_64
                Module libpcre2-16.so.0 from rpm pcre2-10.45-1.fc42.x86_64
                Module libb2.so.1 from rpm libb2-0.98.1-13.fc42.x86_64
                Module libdouble-conversion.so.3 from rpm double-conversion-3.3.1-1.fc42.x86_64
                Module libzstd.so.1 from rpm zstd-1.5.7-1.fc42.x86_64
                Module libicuuc.so.76 from rpm icu-76.1-4.fc42.x86_64
                Module libicui18n.so.76 from rpm icu-76.1-4.fc42.x86_64
                Module libdbus-1.so.3 from rpm dbus-1.16.0-3.fc42.x86_64
                Module libz.so.1 from rpm zlib-ng-2.2.4-3.fc42.x86_64
                Module libfreetype.so.6 from rpm freetype-2.13.3-2.fc42.x86_64
                Module libharfbuzz.so.0 from rpm harfbuzz-10.4.0-1.fc42.x86_64
                Module libpng16.so.16 from rpm libpng-1.6.44-2.fc42.x86_64
                Module libOpenGL.so.0 from rpm libglvnd-1.7.0-7.fc42.x86_64
                Module libGLX.so.0 from rpm libglvnd-1.7.0-7.fc42.x86_64
                Module libglib-2.0.so.0 from rpm glib2-2.84.1-1.fc42.x86_64
                Module libfontconfig.so.1 from rpm fontconfig-2.16.0-2.fc42.x86_64
                Module libEGL.so.1 from rpm libglvnd-1.7.0-7.fc42.x86_64
                Module libQt6Xml.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libXfixes.so.3 from rpm libXfixes-6.0.1-5.fc42.x86_64
                Module libxcb-res.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libKF6KIOCore.so.6 from rpm kf6-kio-6.13.0-2.fc42.x86_64
                Module libKF6JobWidgets.so.6 from rpm kf6-kjobwidgets-6.13.0-2.fc42.x86_64
                Module libKF6KIOGui.so.6 from rpm kf6-kio-6.13.0-2.fc42.x86_64
                Module libQt6Network.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libQt6QmlModels.so.6 from rpm qt6-qtdeclarative-6.9.0-2.fc42.x86_64
                Module libQt6QmlMeta.so.6 from rpm qt6-qtdeclarative-6.9.0-2.fc42.x86_64
                Module libX11.so.6 from rpm libX11-1.8.11-1.fc42.x86_64
                Module libKF6Package.so.6 from rpm kf6-kpackage-6.13.0-1.fc42.x86_64
                Module libxcvt.so.0 from rpm libxcvt-0.1.2-9.fc42.x86_64
                Module libdisplay-info.so.2 from rpm libdisplay-info-0.2.0-3.fc42.x86_64
                Module libQt6OpenGL.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libKScreenLocker.so.6 from rpm kscreenlocker-6.3.4-2.fc42.x86_64
                Module libPlasmaActivities.so.6 from rpm plasma-activities-6.3.4-1.fc42.x86_64
                Module libxcb-xinput.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-present.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-dri3.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libwayland-client.so.0 from rpm wayland-1.23.1-1.fc42.x86_64
                Module libKWaylandClient.so.6 from rpm kwayland-6.3.4-2.fc42.x86_64
                Module libinput.so.10 from rpm libinput-1.28.1-1.fc42.x86_64
                Module libgbm.so.1 from rpm mesa-25.0.2-3.fc42.x86_64
                Module libdrm.so.2 from rpm libdrm-2.4.124-2.fc42.x86_64
                Module libxcb-xinerama.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-sync.so.1 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-shm.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-shape.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-render.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-keysyms.so.1 from rpm xcb-util-keysyms-0.4.1-7.fc42.x86_64
                Module libxcb-icccm.so.4 from rpm xcb-util-wm-0.4.2-7.fc42.x86_64
                Module libxcb-glx.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-damage.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-cursor.so.0 from rpm xcb-util-cursor-0.1.5-3.fc42.x86_64
                Module liblcms2.so.2 from rpm lcms2-2.16-5.fc42.x86_64
                Module libxkbcommon.so.0 from rpm libxkbcommon-1.8.1-1.fc42.x86_64
                Module libudev.so.1 from rpm systemd-257.5-2.fc42.x86_64
                Module libkdecorations3private.so.2 from rpm kdecoration-6.3.4-1.fc42.x86_64
                Module libKF6I18nQml.so.6 from rpm kf6-ki18n-6.13.0-1.fc42.x86_64
                Module libKF6ConfigQml.so.6 from rpm kf6-kconfig-6.13.0-1.fc42.x86_64
                Module libQt6Sensors.so.6 from rpm qt6-qtsensors-6.9.0-1.fc42.x86_64
                Module libwayland-server.so.0 from rpm wayland-1.23.1-1.fc42.x86_64
                Module libKF6Codecs.so.6 from rpm kf6-kcodecs-6.13.0-1.fc42.x86_64
                Module libKF6WidgetsAddons.so.6 from rpm kf6-kwidgetsaddons-6.13.0-1.fc42.x86_64
                Module libltdl.so.7 from rpm libtool-2.5.4-4.fc42.x86_64
                Module libtdb.so.1 from rpm libtdb-1.4.13-2.fc42.x86_64
                Module libvorbisfile.so.3 from rpm libvorbis-1.3.7-12.fc42.x86_64
                Module libKF6GuiAddons.so.6 from rpm kf6-kguiaddons-6.13.0-2.fc42.x86_64
                Module libKF6ColorScheme.so.6 from rpm kf6-kcolorscheme-6.13.0-2.fc42.x86_64
                Module libKF6Archive.so.6 from rpm kf6-karchive-6.13.0-1.fc42.x86_64
                Module libQt6Svg.so.6 from rpm qt6-qtsvg-6.9.0-1.fc42.x86_64
                Module libXau.so.6 from rpm libXau-1.0.12-2.fc42.x86_64
                Module libcap.so.2 from rpm libcap-2.73-2.fc42.x86_64
                Module libQt6Core.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libQt6DBus.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libQt6Gui.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libKF6CoreAddons.so.6 from rpm kf6-kcoreaddons-6.13.0-1.fc42.x86_64
                Module libKF6ConfigCore.so.6 from rpm kf6-kconfig-6.13.0-1.fc42.x86_64
                Module libKF6Service.so.6 from rpm kf6-kservice-6.13.0-1.fc42.x86_64
                Module libQt6Widgets.so.6 from rpm qt6-qtbase-6.9.0-1.fc42.x86_64
                Module libKF6GlobalAccel.so.6 from rpm kf6-kglobalaccel-6.13.0-2.fc42.x86_64
                Module libKF6WindowSystem.so.6 from rpm kf6-kwindowsystem-6.13.0-2.fc42.x86_64
                Module libKGlobalAccelD.so.0 from rpm kglobalacceld-6.3.4-2.fc42.x86_64
                Module libKF6I18n.so.6 from rpm kf6-ki18n-6.13.0-1.fc42.x86_64
                Module libKF6IdleTime.so.6 from rpm kf6-kidletime-6.13.0-1.fc42.x86_64
                Module libKF6ConfigGui.so.6 from rpm kf6-kconfig-6.13.0-1.fc42.x86_64
                Module libKF6Notifications.so.6 from rpm kf6-knotifications-6.13.0-1.fc42.x86_64
                Module libQt6Qml.so.6 from rpm qt6-qtdeclarative-6.9.0-2.fc42.x86_64
                Module libQt6Quick.so.6 from rpm qt6-qtdeclarative-6.9.0-2.fc42.x86_64
                Module libkdecorations3.so.6 from rpm kdecoration-6.3.4-1.fc42.x86_64
                Module libepoxy.so.0 from rpm libepoxy-1.5.10-9.fc42.x86_64
                Module libKF6Crash.so.6 from rpm kf6-kcrash-6.13.0-1.fc42.x86_64
                Module libkwin.so.6 from rpm kwin-6.3.4-3.fc42.x86_64
                Module libqaccessibilityclient-qt6.so.0 from rpm qaccessibilityclient-0.6.0-3.fc42.x86_64
                Module libKF6ConfigWidgets.so.6 from rpm kf6-kconfigwidgets-6.13.0-2.fc42.x86_64
                Module libKF6Svg.so.6 from rpm kf6-ksvg-6.13.0-1.fc42.x86_64
                Module libxcb.so.1 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-xfixes.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-composite.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libxcb-randr.so.0 from rpm libxcb-1.17.0-5.fc42.x86_64
                Module libsystemd.so.0 from rpm systemd-257.5-2.fc42.x86_64
                Stack trace of thread 2291:
                #0  0x00007f96d1080e5c __pthread_kill_implementation (libc.so.6 + 0x72e5c)
                #1  0x00007f96d1027abe raise (libc.so.6 + 0x19abe)
                #2  0x00007f96d4c6aef1 _ZN6KCrash19defaultCrashHandlerEi (libKF6Crash.so.6 + 0x4ef1)
                #3  0x00007f96d1027bf0 __restore_rt (libc.so.6 + 0x19bf0)
                #4  0x00007f96d243299d _ZL19populateFromPatternP10_FcPatternPN20QFontDatabasePrivate15ApplicationFontEP11FT_FaceRec_P19QFontconfigDatabase (libQt6Gui.so.6 + 0x63299d)
                #5  0x00007f96d2433058 _ZN19QFontconfigDatabase20populateFontDatabaseEv (libQt6Gui.so.6 + 0x633058)
                #6  0x00007f96d21cd43f _ZN20QFontDatabasePrivate18ensureFontDatabaseEv (libQt6Gui.so.6 + 0x3cd43f)
                #7  0x00007f96d21d66dc _ZN20QFontDatabasePrivate8findFontERK8QFontDefib (libQt6Gui.so.6 + 0x3d66dc)
                #8  0x00007f96d21d7f7c _ZN20QFontDatabasePrivate4loadEPK12QFontPrivatei (libQt6Gui.so.6 + 0x3d7f7c)
                #9  0x00007f96d21b22b0 _ZNK12QFontPrivate15engineForScriptEi (libQt6Gui.so.6 + 0x3b22b0)
                #10 0x00007f96d21f0d08 _ZNK12QFontMetrics12boundingRectE5QChar (libQt6Gui.so.6 + 0x3f0d08)
                #11 0x00007f96d460962d _ZN4KWin11ScreenEdgesC1Ev (libkwin.so.6 + 0x20962d)
                #12 0x00007f96d46b11e8 _ZN4KWin9WorkspaceC1Ev (libkwin.so.6 + 0x2b11e8)
                #13 0x00007f96d45651fc _ZN4KWin11Application15createWorkspaceEv (libkwin.so.6 + 0x1651fc)
                #14 0x000055d6a6e847b4 _ZN4KWin18ApplicationWayland14performStartupEv (/usr/bin/kwin_wayland + 0x1b7b4)
                #15 0x000055d6a6e77fb6 main (/usr/bin/kwin_wayland + 0xefb6)
                #16 0x00007f96d10115f5 __libc_start_call_main (libc.so.6 + 0x35f5)
                #17 0x00007f96d10116a8 __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x36a8)
                #18 0x000055d6a6e7e455 _start (/usr/bin/kwin_wayland + 0x15455)
                
                Stack trace of thread 2300:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107bd9c __futex_abstimed_wait_common (libc.so.6 + 0x6dd9c)
                #3  0x00007f96d107e45e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7045e)
                #4  0x00007f96b573479d cnd_wait (libgallium-25.0.2.so + 0x53479d)
                #5  0x00007f96b56ef26c util_queue_thread_func (libgallium-25.0.2.so + 0x4ef26c)
                #6  0x00007f96b57346cc impl_thrd_routine (libgallium-25.0.2.so + 0x5346cc)
                #7  0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #8  0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2299:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107bd9c __futex_abstimed_wait_common (libc.so.6 + 0x6dd9c)
                #3  0x00007f96d107e45e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7045e)
                #4  0x00007f96b573479d cnd_wait (libgallium-25.0.2.so + 0x53479d)
                #5  0x00007f96b56ef26c util_queue_thread_func (libgallium-25.0.2.so + 0x4ef26c)
                #6  0x00007f96b57346cc impl_thrd_routine (libgallium-25.0.2.so + 0x5346cc)
                #7  0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #8  0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2294:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107b774 __syscall_cancel (libc.so.6 + 0x6d774)
                #3  0x00007f96d10f4f36 ppoll (libc.so.6 + 0xe6f36)
                #4  0x00007f96d006a210 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0x4a210)
                #5  0x00007f96d006a2d3 g_main_context_iteration (libglib-2.0.so.0 + 0x4a2d3)
                #6  0x00007f96d19ff46d _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x3ff46d)
                #7  0x00007f96d1703783 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x103783)
                #8  0x00007f96d18217fd _ZN7QThread4execEv (libQt6Core.so.6 + 0x2217fd)
                #9  0x00007f96d1d4e901 _ZN22QDBusConnectionManager3runEv (libQt6DBus.so.6 + 0x20901)
                #10 0x00007f96d18bde24 _ZN14QThreadPrivate5startEPv (libQt6Core.so.6 + 0x2bde24)
                #11 0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #12 0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2308:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107bd9c __futex_abstimed_wait_common (libc.so.6 + 0x6dd9c)
                #3  0x00007f96d107e45e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7045e)
                #4  0x00007f96d12449e0 _ZNSt18condition_variable4waitERSt11unique_lockISt5mutexE (libstdc++.so.6 + 0x449e0)
                #5  0x00007f96d47393bc _ZZN4KWin15DrmCommitThreadC4EPNS_6DrmGpuERK7QStringENKUlvE_clEv (libkwin.so.6 + 0x3393bc)
                #6  0x00007f96d47398ca _ZNSt17_Function_handlerIFSt10unique_ptrINSt13__future_base12_Result_baseENS2_8_DeleterEEvENS1_12_Task_setterIS0_INS1_7_ResultIvEES3_ENSt6thread8_InvokerISt5tupleIJZN7QThread6createIZN4KWin15DrmCommitThreadC4EPNSF_6DrmGpuERK7QStringEUlvE_JEEEPSD_OT_DpOT0_EUlDpOT_E_EEEEvEEE9_M_invokeERKSt9_Any_data (libkwin.so.6 + 0x3398ca)
                #7  0x00007f96d4733db6 _ZNSt13__future_base13_State_baseV29_M_do_setEPSt8functionIFSt10unique_ptrINS_12_Result_baseENS3_8_DeleterEEvEEPb (libkwin.so.6 + 0x333db6)
                #8  0x00007f96d1084294 __pthread_once_slow.isra.0 (libc.so.6 + 0x76294)
                #9  0x00007f96d1084309 pthread_once@GLIBC_2.2.5 (libc.so.6 + 0x76309)
                #10 0x00007f96d4734863 _ZNSt13__future_base15_Deferred_stateINSt6thread8_InvokerISt5tupleIJZN7QThread6createIZN4KWin15DrmCommitThreadC4EPNS6_6DrmGpuERK7QStringEUlvE_JEEEPS4_OT_DpOT0_EUlDpOT_E_EEEEvE17_M_complete_asyncEv.lto_priv.0 (libkwin.so.6 + 0x334863)
                #11 0x00007f96d1821dd7 _ZN19QThreadCreateThread3runEv (libQt6Core.so.6 + 0x221dd7)
                #12 0x00007f96d18bde24 _ZN14QThreadPrivate5startEPv (libQt6Core.so.6 + 0x2bde24)
                #13 0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #14 0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2332:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107bd9c __futex_abstimed_wait_common (libc.so.6 + 0x6dd9c)
                #3  0x00007f96d107e45e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7045e)
                #4  0x00007f96b573479d cnd_wait (libgallium-25.0.2.so + 0x53479d)
                #5  0x00007f96b56ef26c util_queue_thread_func (libgallium-25.0.2.so + 0x4ef26c)
                #6  0x00007f96b57346cc impl_thrd_routine (libgallium-25.0.2.so + 0x5346cc)
                #7  0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #8  0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2331:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107bd9c __futex_abstimed_wait_common (libc.so.6 + 0x6dd9c)
                #3  0x00007f96d107e45e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7045e)
                #4  0x00007f96b573479d cnd_wait (libgallium-25.0.2.so + 0x53479d)
                #5  0x00007f96b56ef26c util_queue_thread_func (libgallium-25.0.2.so + 0x4ef26c)
                #6  0x00007f96b57346cc impl_thrd_routine (libgallium-25.0.2.so + 0x5346cc)
                #7  0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #8  0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2333:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107bd9c __futex_abstimed_wait_common (libc.so.6 + 0x6dd9c)
                #3  0x00007f96d107e45e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7045e)
                #4  0x00007f96b573479d cnd_wait (libgallium-25.0.2.so + 0x53479d)
                #5  0x00007f96b56ef26c util_queue_thread_func (libgallium-25.0.2.so + 0x4ef26c)
                #6  0x00007f96b57346cc impl_thrd_routine (libgallium-25.0.2.so + 0x5346cc)
                #7  0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #8  0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2312:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107b774 __syscall_cancel (libc.so.6 + 0x6d774)
                #3  0x00007f96d10f4f36 ppoll (libc.so.6 + 0xe6f36)
                #4  0x00007f96d006a210 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0x4a210)
                #5  0x00007f96d006a2d3 g_main_context_iteration (libglib-2.0.so.0 + 0x4a2d3)
                #6  0x00007f96d19ff491 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x3ff491)
                #7  0x00007f96d1703783 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x103783)
                #8  0x00007f96d18217fd _ZN7QThread4execEv (libQt6Core.so.6 + 0x2217fd)
                #9  0x00007f96d18bde24 _ZN14QThreadPrivate5startEPv (libQt6Core.so.6 + 0x2bde24)
                #10 0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #11 0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                
                Stack trace of thread 2334:
                #0  0x00007f96d1087402 __syscall_cancel_arch (libc.so.6 + 0x79402)
                #1  0x00007f96d107b72a __internal_syscall_cancel (libc.so.6 + 0x6d72a)
                #2  0x00007f96d107bd9c __futex_abstimed_wait_common (libc.so.6 + 0x6dd9c)
                #3  0x00007f96d107e45e pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x7045e)
                #4  0x00007f96b573479d cnd_wait (libgallium-25.0.2.so + 0x53479d)
                #5  0x00007f96b56ef26c util_queue_thread_func (libgallium-25.0.2.so + 0x4ef26c)
                #6  0x00007f96b57346cc impl_thrd_routine (libgallium-25.0.2.so + 0x5346cc)
                #7  0x00007f96d107ef14 start_thread (libc.so.6 + 0x70f14)
                #8  0x00007f96d1101aac __clone3 (libc.so.6 + 0xf3aac)
                ELF object binary architecture: AMD x86-64

The crash starts in QFont.
Please report this to the bug tracker, bugs.kde.org, the stack trace is great.