Bug 1349812

Summary: avc denial when starting LXC Container
Product: Red Hat Enterprise Linux 7 Reporter: Petr Sklenar <psklenar>
Component: selinux-policyAssignee: Lukas Vrabec <lvrabec>
Status: CLOSED ERRATA QA Contact: Milos Malik <mmalik>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.3CC: dapospis, lvrabec, mgrepl, mmalik, plautrba, pvrabec, ssekidde, tpelka
Target Milestone: rcKeywords: Regression
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: selinux-policy-3.13.1-96.el7 Doc Type: If docs needed, set a value
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Story Points: ---
Clone Of: Environment:
Last Closed: 2016-11-04 02:32:44 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Petr Sklenar 2016-06-24 10:30:50 UTC
Description of problem:
avc denial when starting LXC  Container

Version-Release number of selected component (if applicable):
systemd-219-21.el7.x86_64
selinux-policy-3.13.1-76.el7.noarc

How reproducible:
always

Steps to Reproduce:
1. virsh --connect lxc:/// start bash

Actual results:
type=USER_AVC msg=audit(1466764069.123:566): pid=624 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { 0x2 } for msgtype=method_return dest=:1.57 spid=2746 tpid=2817 scontext=system_u:system_r:systemd_machined_t:s0 tcontext=system_u:system_r:virtd_lxc_t:s0-s0:c0.c1023 tclass=(null)  exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'
error: Failed to start domain bash
error: internal error: guest failed to start: Failure in libvirt_lxc startup: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.


Expected results:
no denial 

Additional info:

Comment 5 David King 2016-08-24 08:54:23 UTC
If there is something to fix in dbus, please mention what it is. The numeric ID for the denial should be fixed with the changes in bug 1364485.

Comment 6 Lukas Vrabec 2016-08-24 10:25:10 UTC
We need to allow systemd_machined_t domain to communicate with lxc container via dbus.

Comment 10 errata-xmlrpc 2016-11-04 02:32:44 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-2283.html