[bionic] apparmor denial for rsyslog modules in multiarch directory and pidfile

Bug #1766600 reported by Jamie Strandboge on 2018-04-24
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
rsyslog (Ubuntu)
High
Jamie Strandboge

Bug Description

With the new bionic upload, when the apparmor profile is enabled, rsyslog fails to start (and causes upgrade issues) due to:

AVC apparmor="DENIED" operation="file_mmap" profile="/usr/sbin/rsyslogd" name="/usr/lib/x86_64-linux-gnu/rsyslog/lmnet.so" pid=19949 comm="rsyslogd" requested_mask="m" denied_mask="m" fsuid=0 ouid=0

The profile has this rule:

  /usr/lib{,32,64}/rsyslog/*.so mr,

but the new upload puts modules in /usr/lib/x86_64-linux-gnu/rsyslog so this rule should be adjusted to:

  /usr/lib{,32,64}/{,@{multiarch}/}rsyslog/*.so mr,

Fixing that reveals this denial:

AVC apparmor="DENIED" operation="mknod" profile="/usr/sbin/rsyslogd" name="/run/rsyslogd.pid.tmp" pid=2741 comm="rsyslogd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0

So we need to adjust this:

  /{,var/}run/rsyslogd.pid rwk,

to be:

  /{,var/}run/rsyslogd.pid{,.tmp} rwk,

description: updated
description: updated
summary: - [bionic] apparmor denial for rsyslog modules in multiarch directory
+ [bionic] apparmor denial for rsyslog modules in multiarch directory and
+ pidfile
description: updated
tags: added: apparmor
Changed in rsyslog (Ubuntu):
status: In Progress → Fix Committed
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package rsyslog - 8.32.0-1ubuntu4

---------------
rsyslog (8.32.0-1ubuntu4) bionic; urgency=medium

  [ Jamie Strandboge ]
  * debian/usr.sbin.rsyslogd: updates for bionic (LP: #1766600)
    - allow rsyslog modules in multiarch directories
    - allow writing temporary pidfile

  [ Dimitri John Ledkov ]
  * Tolerate installing rsyslog, on systems without systemd installed. LP:
    #1766574

 -- Dimitri John Ledkov <email address hidden> Tue, 24 Apr 2018 15:47:41 +0100

Changed in rsyslog (Ubuntu):
status: Fix Committed → Fix Released
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