This bug was fixed in the package apparmor - 5.0.0~alpha1-0ubuntu3
---------------
apparmor (5.0.0~alpha1-0ubuntu3) questing; urgency=medium
* debian/apparmor.install, debian/apparmor-profiles.install,
debian/apparmor.maintscript: disable the lsof profile by default
as temporary workaround for LP #2120233
apparmor (5.0.0~alpha1-0ubuntu2) questing; urgency=medium
* Add a patch to grant nss-systemd access to new GDM userdb service:
(LP: #2119541)
- d/p/u/nss-systemd-grant-access-to-gdb-user-db.patch
* Add a patch to improve aa-notify command notification fallback:
- d/p/u/aa-notify-fallback-to-ev-comm-when-ev-execpath.patch
* Add patches to fix parser memory leaks:
- d/p/u/parser-fix-misc-leaks.patch
- d/p/u/parser-fix-more-parser-leaks.patch
-- Ryan Lee <[email protected]> Mon, 11 Aug 2025 09:38:19 -0700
** Changed in: apparmor (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2119541
Title:
nss-systemd does not grant access to the GDM user database
Status in apparmor package in Ubuntu:
Fix Released
Status in gdm3 package in Ubuntu:
Won't Fix
Bug description:
GDM 49~beta implements a userdb VarLink service for managing the unix users
running the greeter shell, as well as the gnome-initial-setup users.
Currently it is broken because apparmor prevents access to it.
gdm-launch-environment][1892]: Gdm: GdmSessionWorker: determining if
authenticated user (password required:0) is authorized to session
unix_chkpwd[1897]: could not obtain user info (gdm-greeter)
kernel: audit: type=1400 audit(1754399331.488:211): apparmor="DENIED"
operation="connect" class="file" profile="unix-chkpwd"
name="/run/systemd/userdb/org.gnome.DisplayManager" pid=1897 comm="unix_chkpwd"
requested_mask="wr" denied_mask="wr" fsuid=0 ouid=0
gdm-launch-environment][1892]: Gdm: GdmSessionWorker: user is not authorized
to log in: Authentication failure
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