This bug was fixed in the package mutter - 46.2-1ubuntu0.24.04.10
---------------
mutter (46.2-1ubuntu0.24.04.10) noble; urgency=medium
* Add proposed patch fixing crash on window drag (LP: #2107454)
-- Alessandro Astone <alessandro.ast...@canonical.com> Wed, 09 Jul
2025 09:10:43 +0200
** Changed in: mutter (Ubuntu Noble)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2107454
Title:
GNOME Shell crashed with SIGABRT at clutter_actor_finalize: assertion
failed: (priv->grabs == NULL) on Xorg
Status in Mutter:
Fix Released
Status in mutter package in Ubuntu:
Fix Released
Status in mutter source package in Noble:
Fix Released
Status in mutter source package in Oracular:
Won't Fix
Status in mutter source package in Plucky:
Fix Released
Status in mutter source package in Questing:
Fix Released
Bug description:
[ Impact ]
When dragging a window around, GNOME Shell might crash and log out the
user.
To trigger the bug, some conditions need to hold so that GNOME Shell
denies the drag action; after that it will crash trying to handle the
failure to drag. It is unclear how to trigger these conditions in an
unmodified environment: we don't have a known reproducer.
Because of that we will use errors.ubuntu.com as a metric to judge
whether the bug is really fixed after the update lands. Currently
these crashes are getting reported at
https://errors.ubuntu.com/bucket/?id=/usr/bin/gnome-
shell%3A6%3A__pthread_kill_implementation%3A__pthread_kill_internal%3A__GI___pthread_kill%3A__GI_raise%3A__GI_abort
, however do note that they are incorrectly grouped together with
other crashes because of bug 1982283
[ Test Plan ]
1. Log-in to Ubuntu on Xorg
2. Open an application window
3. Drag the window around by its title bar
4. Verify that GNOME Shell didn't crash and log you out
[ Where problems could occur ]
The patch affects the ending of a drag operation.
A problem may manifest with GNOME Shell crashing, or becoming unresponsive to
inputs after ending a window drag.
[ Other info ]
Ubuntu version (24.04)
Gnome 46.0
NVIDIA RTX 3060 NVIDIA driver version (550)
---
ProblemType: Bug
ApportVersion: 2.28.1-0ubuntu3.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
DisplayManager: gdm3
DistroRelease: Ubuntu 24.04
NonfreeKernelModules: nvidia_modeset nvidia
Package: gnome-shell 46.0-0ubuntu6~24.04.8
PackageArchitecture: amd64
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcVersionSignature: Ubuntu 6.11.0-21.21~24.04.1-generic 6.11.11
RelatedPackageVersions: mutter-common 46.2-1ubuntu0.24.04.7
Tags: noble
Uname: Linux 6.11.0-21-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sudo users
_MarkForUpload: True
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