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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu Yakkety)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1658219

Title:
  flock not mediated by 'k'

Status in AppArmor:
  Triaged
Status in linux package in Ubuntu:
  New
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed

Bug description:
  $ cat ./apparmor.profile 
  #include <tunables/global>

  profile test {
    #include <abstractions/base>

    /bin/bash ixr,
    /dev/pts/* rw,
    /usr/bin/flock ixr,
    # Not blocked:
    # aa-exec -p test -- flock -w 1 /tmp/test.lock -c true
    /tmp/test.lock rw,

  }

  $ sudo apparmor_parser -r ./apparmor.profile

  $ aa-exec -p test -- flock -w 1 /tmp/test.lock -c true && echo yes
  yes

  $ ls -l /tmp/test.lock 
  -rw-rw-r-- 1 jamie jamie 0 Jan 20 15:57 /tmp/test.lock

  The flock command uses flock(LOCK_EX) and I expected it to be blocked
  due to the lack of 'k'.

  apparmor userspace 2.10.95-0ubuntu2.5 (xenial) and 4.9.0-12.13-generic
  kernel on amd64.

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