Bug 882922
| Summary: | SELinux policy prevents tuned daemon from communicating over DBus | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jan Vcelak <jvcelak> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 17 | CC: | dominick.grift, dwalsh, ezwen-redhatbugzilla, mgrepl, tsmetana |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 874059 | Environment: | |
| Last Closed: | 2013-01-07 04:02:55 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: | 874059 | ||
| Bug Blocks: | |||
Jan, are you testing it with -59.fc18 build? # matchpathcon /etc/tuned/active_profile /etc/tuned/active_profile system_u:object_r:tuned_rw_etc_t:s0 Sorry for not mentioning that. Yes, I do: # rpm -q selinux-policy selinux-policy-3.11.1-59.fc18.noarch Ok, so tuned-adm wants to talk with the daemon. How is tuned powerful? Does it create tuned files/dirs? tuned is very powerful. :-) It actually needs to write into /etc/tuned/active_profile, /var/run/tuned, /var/log/tuned, various locations in /sys, /dev/*_latency ... that's all I can recall now. Ok, basically I am interested in
type=AVC msg=audit(1354530611.557:124): avc: denied { write } for pid=3237 comm="tuned" name="active_profile" dev="dm-1" ino=1706757 scontext=system_u:system_r:tuned_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file
Added
commit 84dd32002a178f115010ada522ffc9d892609f0c
Author: Miroslav Grepl <mgrepl>
Date: Tue Dec 4 14:27:20 2012 +0100
tuned-adm wants to talk with tuned daemon
I appear to have a similar issue.
(as root)
# systemctl start tuned
# tuned-adm active
2012-12-05 12:08:40,908 ERROR dbus.proxies: Introspect error on :1.143:/Tuned: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
ERROR:dbus.proxies:Introspect error on :1.143:/Tuned: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
DBus call to Tuned daemon failed (org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.).
And this appears in audit.log:
----------------------------
type=SERVICE_START msg=audit(1354704300.082:340): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg=' comm="tuned" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
type=USER_AVC msg=audit(1354704331.598:341): pid=1053 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_return dest=:1.126 spid=8662 tpid=8682 scontext=system_u:system_r:tuned_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'
type=USER_AVC msg=audit(1354704356.623:342): pid=1053 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_return dest=:1.126 spid=8662 tpid=8682 scontext=system_u:system_r:tuned_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'
----------------------------
And it works when I disable SELinux.
(as root)
# setenforce 0
# tuned-adm active
Current active profile: balanced
After a "yum update", tuned got updated to 2.1.1 and the problem seems to be solved. # setenforce 1 # tuned-adm active Current active profile: balanced selinux-policy-3.10.0-165.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/selinux-policy-3.10.0-165.fc17 Package selinux-policy-3.10.0-165.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.10.0-165.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-20544/selinux-policy-3.10.0-165.fc17 then log in and leave karma (feedback). Package selinux-policy-3.10.0-166.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.10.0-166.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-20544/selinux-policy-3.10.0-166.fc17 then log in and leave karma (feedback). selinux-policy-3.10.0-166.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report. |
tuned-adm still cannot talk to tuned daemon in Fedora 18, 19 with SELinux in enforcing mode: tuned-2.1.0-1.fc18 tuned-2.1.0-1.fc19 I can see following denials in audit.log: type=USER_AVC msg=audit(1354530601.044:116): pid=772 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_return dest=:1.56 spid=3199 tpid=3210 scontext=system_u:system_r:tuned_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?' type=AVC msg=audit(1354530611.557:124): avc: denied { write } for pid=3237 comm="tuned" name="active_profile" dev="dm-1" ino=1706757 scontext=system_u:system_r:tuned_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file 'active_profile' refers to '/etc/tuned/active_profile'. +++ This bug was initially created as a clone of Bug #874059 +++ Description of problem: Tuned daemon provides DBus interface for enumeration and activation of tuning profiles. This interface is used by tuned-adm tool. Version-Release number of selected component (if applicable): selinux-policy-3.10.0-156.fc17.noarch tuned-2.0.3-1.fc17.noarch (comming to updates soon) How reproducible: always Steps to Reproduce: 1. service tuned start 2. tuned-adm list 3. service tuned stop Actual results: # service tuned start Redirecting to /bin/systemctl start tuned.service # tuned-adm list Cannot talk to Tuned daemon via DBus. # service tuned stop Redirecting to /bin/systemctl stop tuned.service + AVC denials in the audit.log Expected results: # service tuned start Redirecting to /bin/systemctl start tuned.service # tuned-adm list Available profiles: - balanced - latency-performance - powersave - throughput-performance - virtual-guest - virtual-host No current active profile. # service tuned stop Redirecting to /bin/systemctl stop tuned.service + no AVC denials Additional info: audit.log entries after issuing "service tuned start": type=AVC msg=audit(1352288523.994:5107): avc: denied { search } for pid=30847 comm="tuned" name="dbus" dev="tmpfs" ino=13639 scontext=system_u:system_r:tuned_t:s0 tcontext=system_u:object_r:system_dbusd_var_run_t:s0 tclass=dir type=AVC msg=audit(1352288523.994:5107): avc: denied { write } for pid=30847 comm="tuned" name="system_bus_socket" dev="tmpfs" ino=13640 scontext=system_u:system_r:tuned_t:s0 tcontext=system_u:object_r:system_dbusd_var_run_t:s0 tclass=sock_file type=AVC msg=audit(1352288523.994:5107): avc: denied { connectto } for pid=30847 comm="tuned" path="/run/dbus/system_bus_socket" scontext=system_u:system_r:tuned_t:s0 tcontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tclass=unix_stream_socket type=SYSCALL msg=audit(1352288523.994:5107): arch=c000003e syscall=42 success=yes exit=0 a0=7 a1=7fdf74eae3f0 a2=21 a3=6e75722f7261762f items=0 ppid=1 pid=30847 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="tuned" exe="/usr/bin/python2.7" subj=system_u:system_r:tuned_t:s0 key=(null) type=USER_AVC msg=audit(1352288523.996:5108): pid=879 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.DBus member=Hello dest=org.freedesktop.DBus spid=30846 scontext=system_u:system_r:tuned_t:s0 tcontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?' type=USER_AVC msg=audit(1352288524.001:5109): pid=879 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc: denied { acquire_svc } for service=com.redhat.tuned spid=30846 scontext=system_u:system_r:tuned_t:s0 tcontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?' type=SERVICE_START msg=audit(1352288524.003:5110): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg=' comm="tuned" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' audit.log entries after issuing "tuned-adm list": type=USER_AVC msg=audit(1352288532.156:5111): pid=879 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.DBus.Introspectable member=Introspect dest=:1.959 spid=30852 tpid=30846 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:system_r:tuned_t:s0 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?' type=USER_AVC msg=audit(1352288532.157:5112): pid=879 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_return dest=:1.960 spid=30846 tpid=30852 scontext=system_u:system_r:tuned_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?' type=AVC msg=audit(1352288532.158:5113): avc: denied { search } for pid=30847 comm="tuned" name="devel" dev="dm-2" ino=4065970 scontext=system_u:system_r:tuned_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=dir type=SYSCALL msg=audit(1352288532.158:5113): arch=c000003e syscall=4 success=no exit=-2 a0=7fdf70009f80 a1=7fdf74ead880 a2=7fdf74ead880 a3=6e75742f6374652f items=0 ppid=1 pid=30847 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="tuned" exe="/usr/bin/python2.7" subj=system_u:system_r:tuned_t:s0 key=(null) audit.log entries after issuing "service tuned stop": type=SERVICE_STOP msg=audit(1352288540.092:5114): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg=' comm="tuned" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' --- Additional comment from Miroslav Grepl on 2012-11-07 13:21:23 CET --- I backported fixes from F18. --- Additional comment from Fedora Update System on 2012-11-21 12:52:58 CET --- selinux-policy-3.10.0-161.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/selinux-policy-3.10.0-161.fc17 --- Additional comment from Fedora Update System on 2012-11-22 04:54:52 CET --- Package selinux-policy-3.10.0-161.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.10.0-161.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-18787/selinux-policy-3.10.0-161.fc17 then log in and leave karma (feedback).