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Bug 1149253

Summary: [ga][rhel7][ppc64] org.freedesktop.DBus.Error.AccessDenied: An SELinux policy prevents this sender from sending this message to this recipient
Product: Red Hat Enterprise Linux 7 Reporter: Jiri Belka <jbelka>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED ERRATA QA Contact: Martin Žember <mzember>
Severity: low Docs Contact:
Priority: medium    
Version: 7.0CC: ebenes, ecohen, gklein, iheim, jbelka, lsurette, michal.skrivanek, mkenneth, mmalik, mzember, rbalakri, vfeenstr, yeylon
Target Milestone: pre-dev-freeze   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: virt
Fixed In Version: selinux-policy-3.13.1-5.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 1154729 (view as bug list) Environment:
Last Closed: 2015-03-05 10:45:21 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1122979, 1154729    

Description Jiri Belka 2014-10-03 15:23:04 UTC 
Description of problem:
after installation and systemctl start ovirt-guest-agent i see following:

# systemctl status -l ovirt-guest-agent -l
ovirt-guest-agent.service - oVirt Guest Agent
   Loaded: loaded (/usr/lib/systemd/system/ovirt-guest-agent.service; enabled)
   Active: active (running) since Fri 2014-10-03 11:11:39 EDT; 47s ago
  Process: 19852 ExecStartPre=/bin/chown ovirtagent:ovirtagent /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 19850 ExecStartPre=/bin/touch /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 19848 ExecStartPre=/sbin/modprobe virtio_console (code=exited, status=0/SUCCESS)
 Main PID: 19856 (python)
   CGroup: /system.slice/ovirt-guest-agent.service
           └─19856 /usr/bin/python /usr/share/ovirt-guest-agent/ovirt-guest-agent.py

Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: File "/usr/share/ovirt-guest-agent/LockActiveSession.py", line 78, in GetSession
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: for session_path in GetSessions(manager):
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: File "/usr/share/ovirt-guest-agent/LockActiveSession.py", line 71, in GetSessions
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: return [x[4] for x in manager.ListSessions()]
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: File "/usr/lib64/python2.7/site-packages/dbus/proxies.py", line 145, in __call__
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: **keywords)
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: File "/usr/lib64/python2.7/site-packages/dbus/connection.py", line 651, in call_blocking
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: message, timeout)
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: DBusException: org.freedesktop.DBus.Error.AccessDenied: An SELinux policy prevents this sender from sending this message to this recipient, 0 matched rules; type="method_call", sender=":1.39" (uid=0 pid=19867 comm="/usr/bin/python /usr/share/ovirt-guest-agent/LockA") interface="org.freedesktop.login1.Manager" member="ListSessions" error name="(unset)" requested_reply="0" destination=":1.1" (uid=0 pid=1144 comm="/usr/lib/systemd/systemd-logind ")
Oct 03 11:11:39 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com python[19856]: ERROR:root:Error locking session (no active session).

type=USER_AVC msg=audit(1412349099.550:417): pid=1145 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { send_msg } for msgtype=method_call interface=org.freedesktop.login1.Manager member=ListSessions dest=:1.1 spid=19867 tpid=1144 scontext=system_u:system_r:rhev_agentd_t:s0 tcontext=system_u:system_r:systemd_logind_t:s0 tclass=dbus  exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'

after restart i don't see it anymore...

# systemctl status -l ovirt-guest-agent -l
ovirt-guest-agent.service - oVirt Guest Agent
   Loaded: loaded (/usr/lib/systemd/system/ovirt-guest-agent.service; enabled)
   Active: active (running) since Fri 2014-10-03 11:19:21 EDT; 2s ago
  Process: 19987 ExecStartPre=/bin/chown ovirtagent:ovirtagent /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 19985 ExecStartPre=/bin/touch /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 19981 ExecStartPre=/sbin/modprobe virtio_console (code=exited, status=0/SUCCESS)
 Main PID: 19990 (python)
   CGroup: /system.slice/ovirt-guest-agent.service
           └─19990 /usr/bin/python /usr/share/ovirt-guest-agent/ovirt-guest-agent.py

Oct 03 11:19:21 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com systemd[1]: Starting oVirt Guest Agent...
Oct 03 11:19:21 jb-rhel7-ppc64.rhev.lab.eng.brq.redhat.com systemd[1]: Started oVirt Guest Agent.

nothing special in ovirt-guest-agent.log

Version-Release number of selected component (if applicable):
rhevm-guest-agent-common-1.0.9-9.el7ev.noarch (av12.1)

How reproducible:
??

Steps to Reproduce:
1. just install and start and see status
2.
3.

Actual results:
some selinux/dbus spam

Expected results:
no spam

Additional info:
Comment 1 Michal Skrivanek 2014-10-07 07:50:14 UTC 
doesn't look ppc specific
Vinzenz?
Comment 2 Vinzenz Feenstra [evilissimo] 2014-10-07 09:24:56 UTC 
It does not look PPC specific, but we never have encountered it on x86_64, nevertheless this is a problem in SELinux not the guest agent.

Moving this bug to RHEL
Comment 4 Miroslav Grepl 2014-10-13 12:31:56 UTC 
commit 638edd562af096ed6d4cfab87c643ff30007f090
Author: Miroslav Grepl <mgrepl>
Date:   Mon Oct 6 10:16:27 2014 +0200

    Allow rhev-agentd dbus chat with systemd-logind.
Comment 6 Vinzenz Feenstra [evilissimo] 2014-10-29 07:47:00 UTC 
*** Bug 1156430 has been marked as a duplicate of this bug. ***
Comment 9 Jiri Belka 2014-12-16 14:36:51 UTC 
FYI https://bugzilla.redhat.com/show_bug.cgi?id=1154729#c3
Comment 12 errata-xmlrpc 2015-03-05 10:45:21 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-2015-0458.html