Bug#1092105: gnome-shell crash when toggling privacy screen and then suspend/resume

[Lee Garrett]

Package: mutter
Version: 43.8-0+deb12u1
Severity: normal
X-Debbugs-Cc: debian at rocketjump.eu

Hi,

steps to reproduce:

1) login to a gnome desktop instance
2) press fn + d to toggle privacy screen 
3) suspend
4) resume

The TTY which previously has the user instance running will crash, killing all
applications in it. Switching to TTY1 (where the login manager runs) and logging
in just switches back to the TTY where gnome-shell segfaulted, so a reboot or
gdm3 restart is needed.

I was able to catch a coredump which I can't attach due to size. Happy to share
it if you're not able to reproduce. There is a similar bug report for Ubuntu:
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2085420

The segfault is in src/backends/native/meta-kms-impl-device.c:962.

Regards,
Lee

-- System Information:
Debian Release: 12.8
  APT prefers stable-security
  APT policy: (1001, 'stable-security'), (1001, 'proposed-updates'), (1001, 'stable'), (500, 'stable-updates')
Architecture: amd64 (x86_64)

Kernel: Linux 6.11.10+bpo-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages mutter depends on:
ii  adwaita-icon-theme            43-1
ii  gnome-settings-daemon-common  43.0-4
ii  gsettings-desktop-schemas     43.0-1
ii  libc6                         2.36-9+deb12u9
ii  libgles2                      1.6.0-1
ii  libglib2.0-0                  2.74.6-2+deb12u5
ii  libmutter-11-0                43.8-0+deb12u1
ii  libwayland-client0            1.21.0-1
ii  libx11-6                      2:1.8.4-2+deb12u2
ii  libxcomposite1                1:0.4.5-1
ii  mutter-common                 43.8-0+deb12u1
ii  zenity                        3.44.0-1

mutter recommends no packages.

Versions of packages mutter suggests:
ii  gnome-control-center  1:43.6-2~deb12u1.1
ii  xdg-user-dirs         0.18-1

-- no debconf information