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Description of problem: After update to RHEL 6.5 I found this AVC's related to rhev-guest-agent: type=AVC msg=audit(1385142166.199:258): avc: denied { read } for pid=6666 comm="ovirt-guest-age" name="online" dev=sysfs ino=23 scontext=unconfined_u:system_r:rhev_agentd_t:s0 tcontext=system_u:object_r:sysfs_t:s0 tclass=file type=AVC msg=audit(1385142166.199:259): avc: denied { open } for pid=6666 comm="ovirt-guest-age" name="online" dev=sysfs ino=23 scontext=unconfined_u:system_r:rhev_agentd_t:s0 tcontext=system_u:object_r:sysfs_t:s0 tclass=file type=AVC msg=audit(1385142825.200:270): avc: denied { write } for pid=10145 comm="ovirt-guest-age" name="ovirt-guest-agent.pid" dev=dm-2 ino=3924535 scontext=unconfined_u:system_r:rhev_agentd_t:s0 tcontext=unconfined_u:object_r:initrc_var_run_t:s0 tclass=file type=SYSCALL msg=audit(1385142825.200:270): arch=c000003e syscall=2 success=yes exit=6 a0=160d080 a1=241 a2=1b6 a3=0 items=0 ppid=1 pid=10145 auid=1637 uid=175 gid=175 euid=175 suid=175 fsuid=175 egid=175 sgid=175 fsgid=175 tty=(none) ses=33 comm="ovirt-guest-age" exe="/usr/bin/python" subj=unconfined_u:system_r:rhev_agentd_t:s0 key=(null) type=AVC msg=audit(1385142825.201:271): avc: denied { setattr } for pid=10145 comm="ovirt-guest-age" name="ovirt-guest-agent.pid" dev=dm-2 ino=3924535 scontext=unconfined_u:system_r:rhev_agentd_t:s0 tcontext=unconfined_u:object_r:initrc_var_run_t:s0 tclass=file type=SYSCALL msg=audit(1385142825.201:271): arch=c000003e syscall=90 success=yes exit=0 a0=160d080 a1=1b4 a2=7fb4c90aba08 a3=7fffadffa800 items=0 ppid=1 pid=10145 auid=1637 uid=175 gid=175 euid=175 suid=175 fsuid=175 egid=175 sgid=175 fsgid=175 tty=(none) ses=33 comm="ovirt-guest-age" exe="/usr/bin/python" subj=unconfined_u:system_r:rhev_agentd_t:s0 key=(null) audit2allow rule: #============= rhev_agentd_t ============== allow rhev_agentd_t initrc_var_run_t:file { write setattr }; allow rhev_agentd_t sysfs_t:file { read open }; /sbin/restorecon -v /var/run/ovirt-guest-agent.pid that change /var/run/ovirt-guest-agent.pid context from unconfined_u:object_r:initrc_var_run_t:s0 to unconfined_u:object_r:rhev_agentd_var_run_t:s0 does not solve because every time ovirt-guest-agent restarts the file is created with initrc_var_run_t context again. Version-Release number of selected component (if applicable): selinux-policy-3.7.19-231.el6.noarch selinux-policy-targeted-3.7.19-231.el6.noarch rhevm-guest-agent-common-1.0.7-13.el6ev.noarch How reproducible: Start ovirt-guest-agent Steps to Reproduce: 1. service ovirt-guest-agent start 2. tail /var/log/audit/audit.log Actual results: The AVC's mencioned. Expected results: None AVC Additional info:
Is the pid file created in the init script? If yes then the init script should be doing the restorecon. The other issue will require a local policy until we fixes it in RHEL6.6
Yes, the pid file is created by init script, but that is not doing restorecon: # Create as root an empty pidfile for the agent. if [ ! -f ${pidfile} ]; then /bin/touch ${pidfile} /bin/chown ovirtagent:ovirtagent ${pidfile} fi
Then only allow rhev_agentd_t sysfs_t:file { read open }; is selinux-policy bug.
My guess is that the agent wants to read /sys/devices/system/cpu/online file.
Yes.
This should be fixed in selinux-policy-3.7.19-231.el6_5.3.noarch #============= rhev_agentd_t ============== #!!!! This avc is allowed in the current policy allow rhev_agentd_t sysfs_t:file { read open };