Bug 1379371

Summary: AVCs when restarting pmlogger
Product: Red Hat Enterprise Linux 7 Reporter: Jan Zarsky <jzarsky>
Component: selinux-policyAssignee: Lukas Vrabec <lvrabec>
Status: CLOSED ERRATA QA Contact: Jan Zarsky <jzarsky>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.4CC: ccheney, lvrabec, mgrepl, mmalik, plautrba, pvrabec, ssekidde
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: selinux-policy-3.13.1-137 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-08-01 15:15:11 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:
Bug Depends On:    
Bug Blocks: 1420851    

Description Jan Zarsky 2016-09-26 13:42:42 UTC
Description of problem:
When restarting pmlogger service, there are AVCs, but everything seems to work.

Version-Release number of selected component (if applicable):
selinux-policy-3.13.1-100.el7.noarch
pcp-3.11.3-4.el7.x86_64

Steps to Reproduce:
1. # yum install pcp
2. # systemctl start pmcd pmlogger
3. # systemctl restart pmlogger

Actual results:
# ausearch -m avc
----
time->Mon Sep 26 09:34:55 2016
type=SYSCALL msg=audit(1474896895.884:307): arch=c000003e syscall=62 success=no exit=-1 a0=69ab a1=f a2=0 a3=7ffe6cba8b50 items=0 ppid=27103 pid=27126 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="pmsignal" exe="/usr/bin/bash" subj=system_u:system_r:pcp_pmlogger_t:s0 key=(null)
type=AVC msg=audit(1474896895.884:307): avc:  denied  { kill } for  pid=27126 comm="pmsignal" capability=5  scontext=system_u:system_r:pcp_pmlogger_t:s0 tcontext=system_u:system_r:pcp_pmlogger_t:s0 tclass=capability

Expected results:
no AVCs

Additional info:
When I run '/usr/share/pcp/lib/pmlogger' manually, there are no AVCs:
# cat /usr/lib/systemd/system/pmlogger.service 
...
[Service]
Type=oneshot
ExecStart=/usr/share/pcp/lib/pmlogger start
ExecStop=/usr/share/pcp/lib/pmlogger stop
RemainAfterExit=yes
...
# /usr/share/pcp/lib/pmlogger start
# /usr/share/pcp/lib/pmlogger stop
# ausearch -m avc
<no matches>

Comment 1 Milos Malik 2016-09-27 18:05:26 UTC
# rpm -qa selinux\*
selinux-policy-targeted-3.13.1-101.el7.noarch
selinux-policy-3.13.1-101.el7.noarch
#
----
type=USER_AVC msg=audit(09/27/2016 13:57:43.245:271) : pid=1 uid=root auid=unset ses=unset subj=system_u:system_r:init_t:s0 msg='avc:  denied  { status } for auid=root uid=root gid=root cmdline="systemctl is-enabled pmlogger.service" scontext=system_u:system_r:pcp_pmlogger_t:s0 tcontext=system_u:system_r:init_t:s0 tclass=system  exe=/usr/lib/systemd/systemd sauid=root hostname=? addr=? terminal=?' 
----
type=USER_AVC msg=audit(09/27/2016 13:57:43.247:272) : pid=1 uid=root auid=unset ses=unset subj=system_u:system_r:init_t:s0 msg='avc:  denied  { status } for auid=root uid=root gid=root cmdline="systemctl -q is-enabled pmlogger.service" scontext=system_u:system_r:pcp_pmlogger_t:s0 tcontext=system_u:system_r:init_t:s0 tclass=system  exe=/usr/lib/systemd/systemd sauid=root hostname=? addr=? terminal=?' 
----
type=SYSCALL msg=audit(09/27/2016 13:57:52.902:277) : arch=x86_64 syscall=connect success=no exit=EACCES(Permission denied) a0=0x3 a1=0x7f05a7786740 a2=0x6e a3=0x44 items=0 ppid=1632 pid=5682 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=logger exe=/usr/bin/logger subj=system_u:system_r:pcp_pmlogger_t:s0 key=(null) 
type=AVC msg=audit(09/27/2016 13:57:52.902:277) : avc:  denied  { write } for  pid=5682 comm=logger name=log dev="devtmpfs" ino=6846 scontext=system_u:system_r:pcp_pmlogger_t:s0 tcontext=system_u:object_r:devlog_t:s0 tclass=sock_file 
----
type=SYSCALL msg=audit(09/27/2016 14:02:11.458:301) : arch=x86_64 syscall=kill success=no exit=EACCES(Permission denied) a0=0x29d3 a1=SIGTERM a2=0x0 a3=0x7ffe74ef3d90 items=0 ppid=10784 pid=10832 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=pmsignal exe=/usr/bin/bash subj=system_u:system_r:pcp_pmlogger_t:s0 key=(null) 
type=AVC msg=audit(09/27/2016 14:02:11.458:301) : avc:  denied  { signal } for  pid=10832 comm=pmsignal scontext=system_u:system_r:pcp_pmlogger_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process 
----

Comment 6 errata-xmlrpc 2017-08-01 15:15:11 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-2017:1861