kernel-packages team mailing list archive

[John Johansen <john.johansen@xxxxxxxxxxxxx>]

Are you using the apparmor user space from trusty or the utopic or
backport apparmor userspace?

When using the trusty userspace the HWE kernel should behave like the
trusty kernel, however when using a newer userspace with the HWE kernel
policy will need to be updated.

Ubuntu have chosen to not update the policy and userspace for trusty
even when the HWE kernel is used.

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https://bugs.launchpad.net/bugs/1425398

Title:
  Apparmor uses rsyslogd profile for different processes - utopic HWE

Status in apparmor package in Ubuntu:
  New
Status in linux-lts-utopic package in Ubuntu:
  New

Bug description:
  Hi.

  I've noticed that apparmor loads /usr/sbin/rsyslogd profile for
  completely unrelated processes:

  Feb 25 08:36:19 emma kernel: [  134.796218] audit: type=1400 audit(1424842579.429:245): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=4002 comm="sshd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  Feb 25 08:36:23 emma kernel: [  139.330989] audit: type=1400 audit(1424842583.965:246): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=4080 comm="sudo" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  Feb 25 08:35:42 emma kernel: [   97.912402] audit: type=1400 audit(1424842542.565:241): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=2436 comm="whoopsie" requested_mask="r" denied_mask="r" fsuid=103 ouid=0
  Feb 25 08:34:43 emma kernel: [   38.867998] audit: type=1400 audit(1424842483.546:226): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=3762 comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

  
  I'm not sure how apparmor decides which profile to use for which task, but is shouldn't load '/usr/sbin/rsyslogd' profile for sshd/ntpd/etc.

  
  I'm running:
  # lsb_release -rd
  Description:	Ubuntu 14.04.2 LTS
  Release:	14.04

  # dpkg -l | grep apparmor
  ii  apparmor                            2.8.95~2430-0ubuntu5.1               amd64        User-space parser utility for AppArmor
  ii  apparmor-profiles                   2.8.95~2430-0ubuntu5.1               all          Profiles for AppArmor Security policies
  ii  apparmor-utils                      2.8.95~2430-0ubuntu5.1               amd64        Utilities for controlling AppArmor
  ii  libapparmor-perl                    2.8.95~2430-0ubuntu5.1               amd64        AppArmor library Perl bindings
  ii  libapparmor1:amd64                  2.8.95~2430-0ubuntu5.1               amd64        changehat AppArmor library
  ii  python3-apparmor                    2.8.95~2430-0ubuntu5.1               amd64        AppArmor Python3 utility library
  ii  python3-libapparmor                 2.8.95~2430-0ubuntu5.1               amd64        AppArmor library Python3 bindings

  # uname -a
  Linux emma 3.16.0-31-generic #41~14.04.1-Ubuntu SMP Wed Feb 11 19:30:13 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

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