/etc/apparmor.d/abstractions/ibus is in apparmor 2.8.95~2430-0ubuntu5.
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 | # vim:syntax=apparmor
# ------------------------------------------------------------------
#
# Copyright (C) 2010 Canonical Ltd.
#
# 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.
#
# ------------------------------------------------------------------
# abstraction for ibus input methods
owner @{HOME}/.config/ibus/ r,
owner @{HOME}/.config/ibus/bus/ rw,
owner @{HOME}/.config/ibus/bus/* rw,
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