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Bug 1501336 - systemctl start ovs-vswitchd produces dac_override and dac_read_search AVC denials
Summary: systemctl start ovs-vswitchd produces dac_override and dac_read_search AVC de...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.4
Hardware: Unspecified
OS: Linux
unspecified
unspecified
Target Milestone: pre-dev-freeze
: ---
Assignee: Lukas Vrabec
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-10-12 11:52 UTC by Jan Pazdziora (Red Hat)
Modified: 2018-04-10 12:45 UTC (History)
7 users (show)

Fixed In Version: selinux-policy-3.13.1-175.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-04-10 12:44:59 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:0763 0 None None None 2018-04-10 12:45:38 UTC

Description Jan Pazdziora (Red Hat) 2017-10-12 11:52:29 UTC 
Description of problem:

Running systemctl start ovs-vswitchd now produces AVC denials.

Version-Release number of selected component (if applicable):

openvswitch-2.7.2-1.git20170719.el7fdp.x86_64

How reproducible:

Deterministic.

Steps to Reproduce:
1. Enable repository with latest openvswitch.
2. yum install -y openvswitch
3. systemctl start ovs-vswitchd
4. Check audit.log.

Actual results:

[  108.776211] type=1400 audit(1507804090.170:4): avc:  denied  { dac_override } for  pid=11777 comm="ovs-ctl" capability=1  scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:system_r:openvswitch_t:s0 tclass=capability
[  109.017566] type=1400 audit(1507804090.411:5): avc:  denied  { dac_read_search } for  pid=11777 comm="ovs-ctl" capability=2  scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:system_r:openvswitch_t:s0 tclass=capability
[  109.588777] type=1400 audit(1507804090.982:6): avc:  denied  { dac_override } for  pid=11815 comm="ovs-ctl" capability=1  scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:system_r:openvswitch_t:s0 tclass=capability
[  109.830164] type=1400 audit(1507804091.224:7): avc:  denied  { dac_read_search } for  pid=11815 comm="ovs-ctl" capability=2  scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:system_r:openvswitch_t:s0 tclass=capability

Expected results:

No AVC denials.

Additional info:
Comment 5 Jan Pazdziora (Red Hat) 2017-10-13 17:36:44 UTC 
Based on http://danwalsh.livejournal.com/69478.html, chances are the problem is not in the selinux-policy at all but in some packaging / ownership / permissions on some files.
Comment 6 Lukas Vrabec 2017-10-23 11:25:21 UTC 
We have these capabilities allowed in Fedora, it looks like this domain really needs it.
Comment 7 Jan Pazdziora (Red Hat) 2017-10-23 11:28:07 UTC 
It did not need it on RHEL 7.4 -- what has changed since then?
Comment 12 errata-xmlrpc 2018-04-10 12:44:59 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://access.redhat.com/errata/RHBA-2018:0763
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