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Bug 1401556 - keepalived needs access to "/var/agentx/master" UNIX socket
Summary: keepalived needs access to "/var/agentx/master" UNIX socket
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.4
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Lukas Vrabec
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-12-05 14:51 UTC by Ryan O'Hara
Modified: 2018-04-10 12:26 UTC (History)
8 users (show)

Fixed In Version: selinux-policy-3.13.1-176.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-04-10 12:25:40 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 12:26:24 UTC

Description Ryan O'Hara 2016-12-05 14:51:04 UTC 
When starting keepalived with SNMP enabled, keepalived fails to connect as a subagent due to AVC for "/var/agentx/master" UNIX socket:

# ausearch -m avc
----
time->Mon Dec  5 08:45:31 2016
type=SYSCALL msg=audit(1480949131.095:4863): arch=c000003e syscall=42 success=no exit=-13 a0=e a1=7ffcc02bf450 a2=6e a3=2 items=0 ppid=55438 pid=55440 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="keepalived" exe="/usr/sbin/keepalived" subj=system_u:system_r:keepalived_t:s0 key=(null)
type=AVC msg=audit(1480949131.095:4863): avc:  denied  { connectto } for  pid=55440 comm="keepalived" path="/var/agentx/master" scontext=system_u:system_r:keepalived_t:s0 tcontext=system_u:system_r:snmpd_t:s0 tclass=unix_stream_socket
Comment 1 Milos Malik 2016-12-05 16:59:17 UTC 
Based on success=no exit=-13, the SELinux denial was caught in enforcing mode. Could you re-run the scenario in permissive mode and attach the resulting SELinux denials?
Comment 2 Ryan O'Hara 2016-12-05 18:56:29 UTC 
In permissive mode:

type=SERVICE_START msg=audit(1480964036.515:5144): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=keepalived comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
type=AVC msg=audit(1480964036.521:5145): avc:  denied  { connectto } for  pid=9017 comm="keepalived" path="/var/agentx/master" scontext=system_u:system_r:keepalived_t:s0 tcontext=system_u:system_r:snmpd_t:s0 tclass=unix_stream_socket
type=SYSCALL msg=audit(1480964036.521:5145): arch=c000003e syscall=42 success=yes exit=0 a0=c a1=7ffc69316fe0 a2=6e a3=2 items=0 ppid=9016 pid=9017 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="keepalived" exe="/usr/sbin/keepalived" subj=system_u:system_r:keepalived_t:s0 key=(null)
Comment 10 errata-xmlrpc 2018-04-10 12:25:40 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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