Public bug reported:
Steps to reproduce:
1) install ntp
apt install ntp
2) confirm it has loaded its AA profile
aa-status | grep ntpd
3) purge ntp
apt purge ntp
4) the profile is left behind but shouldn't
aa-status | grep ntpd
Additional info:
This was found by first install ntp then changing my mind and deciding to go
with OpenNTPD.
FYI, just installing openntpd while ntp is still there works because openntpd
has a kludge
to unload ntpd's profile but that only works if the ntp package wasn't purged
before.
/var/lib/dpkg/info/openntpd.preinst:
if [ -f /etc/apparmor.d/usr.sbin.ntpd ] && pathfind apparmor_parser ; then
apparmor_parser -R /etc/apparmor.d/usr.sbin.ntpd
fi
Since a purge deletes /etc/apparmor.d/usr.sbin.ntpd, openntpd.preinst's kludge
is ineffective.
In any case, having implementation B include workaround for implementation A
not cleaning up
after itself seems wrong and the issue should be fixed at the source IMHO.
# lsb_release -rd
Description: Ubuntu 16.04.2 LTS
Release: 16.04
# apt-cache policy ntp
ntp:
Installed: 1:4.2.8p4+dfsg-3ubuntu5.4
Candidate: 1:4.2.8p4+dfsg-3ubuntu5.4
Version table:
*** 1:4.2.8p4+dfsg-3ubuntu5.4 500
500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
100 /var/lib/dpkg/status
1:4.2.8p4+dfsg-3ubuntu5.3 500
500 http://security.ubuntu.com/ubuntu xenial-security/main amd64
Packages
1:4.2.8p4+dfsg-3ubuntu5 500
500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ntp (not installed)
ProcVersionSignature: Ubuntu 4.4.0-78.99-generic 4.4.62
Uname: Linux 4.4.0-78-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Tue May 9 15:48:42 2017
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SourcePackage: ntp
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ntp (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug uec-images xenial
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https://bugs.launchpad.net/bugs/1689585
Title:
ntp doesn't unload its apparmor profile on purge
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