/etc/apparmor.d/abstractions/libpam-systemd is in apparmor 2.12-4ubuntu5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | # vim:syntax=apparmor
# ------------------------------------------------------------------
#
# Copyright (C) 2015-2016 Simon Deziel
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of version 2 of the GNU General Public
# License published by the Free Software Foundation.
#
# ------------------------------------------------------------------
#include <abstractions/dbus-strict>
# libpam-systemd notifies systemd-logind about session logins/logouts
dbus send
bus=system
path=/org/freedesktop/login1
interface=org.freedesktop.login1.Manager
member={CreateSession,ReleaseSession},
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