Red Hat Bugzilla – Bug 1337968
PCP SELinux issues
Last modified: 2017-04-11 00:51:43 EDT
Description of problem: Latest Fedora 23 / SELinux / PCP is generating few AVCs: # systemctl stop pmcd pmlogger pmie pmwebd # restorecon -R / > /dev/null 2>&1 # systemctl start pmcd type=AVC msg=audit(1463754714.313:316): avc: denied { net_admin } for pid=2335 comm="pmcd" capability=12 scontext=system_u:system_r:pcp_pmcd_t:s0 tcontext=system_u:system_r:pcp_pmcd_t:s0 tclass=capability permissive=1 type=AVC msg=audit(1463754714.313:317): avc: denied { module_request } for pid=2335 comm="pmcd" kmod="netdev-enp0s20u1" scontext=system_u:system_r:pcp_pmcd_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=system permissive=1 # systemctl start pmlogger type=AVC msg=audit(1463754792.335:321): avc: denied { net_admin } for pid=2353 comm="pmdalinux" capability=12 scontext=system_u:system_r:pcp_pmcd_t:s0 tcontext=system_u:system_r:pcp_pmcd_t:s0 tclass=capability permissive=1 # systemctl start pmie # systemctl start pmwebd # pminfo -f type=AVC msg=audit(1463754891.663:349): avc: denied { search } for pid=2345 comm="pmdaroot" name="docker" dev="sda9" ino=273270 scontext=system_u:system_r:pcp_pmcd_t:s0 tcontext=system_u:object_r:docker_var_lib_t:s0 tclass=dir permissive=1 (Omitted the getattr AVCs reported earlier at bug 1336211).
Nathan, Are this AVC expected? type=AVC msg=audit(1463754714.313:316): avc: denied { net_admin } for pid=2335 comm="pmcd" capability=12 scontext=system_u:system_r:pcp_pmcd_t:s0 tcontext=system_u:system_r:pcp_pmcd_t:s0 tclass=capability permissive=1
(In reply to Lukas Vrabec from comment #1) > Nathan, > Are this AVC expected? I suspect so, but I'm not 100% certain... > type=AVC msg=audit(1463754714.313:316): avc: denied { net_admin } for > pid=2335 comm="pmcd" capability=12 scontext=system_u:system_r:pcp_pmcd_t:s0 > tcontext=system_u:system_r:pcp_pmcd_t:s0 tclass=capability permissive=1 Any idea which syscall this was triggered by? (is it there in the log, but I'm blindly missing it?) Thanks!
Marko, We need SYSCALL part of AVCs.
Here are the steps I used to reproduce as root: systemctl stop pmcd pmlogger pmie pmwebd setenforce 0 echo > /var/log/audit/audit.log restorecon -R / > /dev/null 2>&1 systemctl start pmcd systemctl start pmlogger systemctl start pmie systemctl start pmwebd pminfo -f > /dev/null 2>&1 I'll attach the resulting audit.log from a F24 default installation and a longer lived F23 installation. Note that on F24 we see sys_ptrace but not net_admin, F24 is a KVM VM, F23 is a real laptop. If something is still missing, please let me know. Thanks.
Created attachment 1170166 [details] f23-audit.log
Created attachment 1170167 [details] f24-audit.log
https://bugzilla.redhat.com/show_bug.cgi?id=1381127 contains even more PCP AVCs.
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Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.
pcp-3.11.8-1.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-201a3e0969
pcp-3.11.8-1.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2017-6b8f1de90c
pcp-3.11.8-1.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-201a3e0969
pcp-3.11.8-1.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-6b8f1de90c
pcp-3.11.8-1.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.
pcp-3.11.8-2.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2017-3b25af744f
pcp-3.11.8-2.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-3b25af744f
pcp-3.11.9-1.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2017-c6c3616693
pcp-3.11.9-1.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-c6c3616693
pcp-3.11.9-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.