apparmor.d/profiles/umount

# vim:syntax=apparmor
# ------------------------------------------------------------------
#
#    Copyright (C) 2019-2021 Mikhail Morfikov
#
#    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.
#
# ------------------------------------------------------------------

abi <abi/3.0>,

include <tunables/global>

@{exec_path} = /{usr/,}bin/umount
profile umount @{exec_path} flags=(complain) {
  include <abstractions/base>
  include <abstractions/nameservice-strict>

  # To be able to umount anything
  #  umount2("/mnt", 0)               = -1 EPERM (Operation not permitted)
  #
  #  umount: /mnt: must be superuser to unmount.
  capability sys_admin,

  capability setuid,
  capability setgid,

  umount,

  network inet stream,
  network inet6 stream,

  @{exec_path} mr,

  /{usr/,}sbin/umount.*   rPx,

  # Mount points
  @{HOME}/ r,
  @{HOME}/*/ r,
  @{HOME}/*/*/ r,
  /media/*/ r,
  /media/*/*/ r,
  /mnt/ r,
  /mnt/*/ r,
  /media/cdrom[0-9]/ r,

  /etc/mtab r,
  /etc/fstab r,

  owner @{PROC}/@{pid}/mountinfo r,

  @{sys}/devices/virtual/block/dm-[0-9]*/dm/name r,

  owner @{run}/mount/ rw,
  owner @{run}/mount/utab{,.*} rw,
  owner @{run}/mount/utab.lock wk,

  include if exists <local/umount>
}