Public bug reported: Title: gnome-shell SIGSEGV in pixman_region32_n_rects from libmutter-14 paint path (Wayland), GDM greeter shell also crashes
Under a Wayland session gnome-shell segfaulted without warning at 2026-09-17 17:38:11 CEST, ending the session (all apps lost). The GDM greeter's gnome-shell (uid 120, no user extensions) also segfaulted 7 seconds later. == Versions == Ubuntu 24.04.5 LTS 7.0.0-31-generic gnome-shell 46.0-0ubuntu6~24.04.14 libmutter-14-0 46.2-1ubuntu0.24.04.16 libpixman-1-0 0.42.2-1build1 GPU: Intel iGPU + NVIDIA (hybrid), NVIDIA driver 580.173.02 Enabled extensions: ['[email protected]', '[email protected]', '[email protected]', 'windowIsReady_Remover@[email protected]'] == Stack trace (systemd-coredump, crashing thread) == Stack trace of thread 6102: #0 0x0000751588e9ec0c __pthread_kill_implementation (libc.so.6 + 0x9ec0c) #1 0x0000751588e4527e __GI_raise (libc.so.6 + 0x4527e) #2 0x000059532a47ac16 n/a (gnome-shell + 0x4c16) #3 0x0000751588e45330 __restore_rt (libc.so.6 + 0x45330) #4 0x0000751585ec1a32 pixman_region32_n_rects (libpixman-1.so.0 + 0x62a32) #5 0x0000000000000001 n/a (n/a + 0x0) #6 0x00007515892ae592 n/a (libmutter-14.so.0 + 0xae592) #7 0x00007515892b0a4b n/a (libmutter-14.so.0 + 0xb0a4b) #8 0x00007515892b090f n/a (libmutter-14.so.0 + 0xb090f) #9 0x00007515899e22fa g_closure_invoke (libgobject-2.0.so.0 + 0x152fa) #10 0x0000751589a1190c n/a (libgobject-2.0.so.0 + 0x4490c) #11 0x0000751589a02591 n/a (libgobject-2.0.so.0 + 0x35591) #12 0x0000751589a027c1 g_signal_emit_valist (libgobject-2.0.so.0 + 0x357c1) #13 0x0000751589a02883 g_signal_emit (libgobject-2.0.so.0 + 0x35883) #14 0x00007515896da4c7 n/a (libmutter-clutter-14.so.0 + 0x904c7) #15 0x00007515896ab7cc n/a (libmutter-clutter-14.so.0 + 0x617cc) #16 0x00007515898e1585 n/a (libglib-2.0.so.0 + 0x5d585) #17 0x0000751589940977 n/a (libglib-2.0.so.0 + 0xbc977) #18 0x00007515898e1f47 g_main_loop_run (libglib-2.0.so.0 + 0x5df47) #19 0x00007515892d50aa meta_context_run_main_loop (libmutter-14.so.0 + 0xd50aa) #20 0x00007515887b7b16 n/a (libffi.so.8 + 0x7b16) #21 0x00007515887b43ef n/a (libffi.so.8 + 0x43ef) #22 0x00007515887b70be ffi_call (libffi.so.8 + 0x70be) #23 0x000075158978dbc9 n/a (libgjs.so.0 + 0x4bbc9) #24 0x000075158978dfe4 n/a (libgjs.so.0 + 0x4bfe4) #25 0x00007515869622a0 n/a (libmozjs-115.so.0 + 0x1622a0) #26 0x000075158695669f n/a (libmozjs-115.so.0 + 0x15669f) #27 0x0000751586961e0b n/a (libmozjs-115.so.0 + 0x161e0b) #28 0x0000751586962177 n/a (libmozjs-115.so.0 + 0x162177) #29 0x00007515869626e9 n/a (libmozjs-115.so.0 + 0x1626e9) #30 0x00007515869e17d0 _ZN2JS4CallEP9JSContextNS_6HandleINS_5ValueEEES4_RKNS_16HandleValueArrayENS_13MutableHandleIS3_EE (libmozjs-115.so.0 + 0x1e17d0) #31 0x00007515897c72c4 n/a (libgjs.so.0 + 0x852c4) #32 0x00007515897ce40f gjs_context_eval_module (libgjs.so.0 + 0x8c40f) #33 0x00007515897ce9b1 gjs_context_eval_module_file (libgjs.so.0 + 0x8c9b1) #34 0x000059532a47a002 n/a (gnome-shell + 0x4002) #35 0x0000751588e2a1ca __libc_start_call_main (libc.so.6 + 0x2a1ca) #36 0x0000751588e2a28b __libc_start_main_impl (libc.so.6 + 0x2a28b) #37 0x000059532a47a345 n/a (gnome-shell + 0x4345) ** Affects: mutter (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2167614 Title: gnome-shell SIGSEGV in pixman_region32_n_rects from libmutter-14 paint path (Wayland), GDM greeter shell also crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2167614/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
