Red Hat Bugzilla – Bug 1264510
SELinux is preventing auditd from { read append } access to /var/log/audit/audit.log
Last modified: 2015-11-10 03:11:27 EST
Description of problem: Since I updated selinux-policy-targeted from 3.13.1-128.12 to 3.13.1-128.13 three days ago, auditd stopped working. $ systemctl status auditd.service ● auditd.service - Security Auditing Service Loaded: loaded (/usr/lib/systemd/system/auditd.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Fr 2015-09-18 hh:mm:54 CEST; 1h 41min ago Main PID: 826 (code=exited, status=6) Sep 18 hh:mm:53 hostnamesystemd[1]: Starting Security Auditing Service... Sep 18 hh:mm:53 hostnameauditctl[827]: No rules Sep 18 hh:mm:53 hostnamesystemd[1]: Started Security Auditing Service. Sep 18 hh:mm:54 hostnamesystemd[1]: auditd.service: main process exited, code=exited, status=6/NOTCONFIGURED Sep 18 hh:mm:54 hostnamesystemd[1]: Unit auditd.service entered failed state. Sep 18 hh:mm:54 hostnamesystemd[1]: auditd.service failed. sealert is unable to display any warnings or errors, it stopped working. In syslog (systemd-journald) I see these messages on boot, just after systemd printed "Starting Basic System": Sep 17 hh:mm:59 hostname auditd[685]: Unable to open /var/log/audit/audit.log (Permission denied) Sep 17 hh:mm:59 hostname auditd[685]: The audit daemon is exiting. Sep 17 hh:mm:59 hostname audit[1]: <audit-1130> pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u Sep 17 hh:mm:59 hostname audit[1]: <audit-1130> pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u Sep 17 hh:mm:59 hostname audit[685]: <audit-1400> avc: denied { read append } for pid=685 comm="audit Sep 17 hh:mm:59 hostname audit[685]: <audit-1300> arch=c000003e syscall=2 success=no exit=-13 a0=7ffcd38 Sep 17 hh:mm:59 hostname audit: <audit-1307> cwd="/" Sep 17 hh:mm:59 hostname audit: <audit-1302> item=0 name="/var/log/audit/audit.log" inode=2107312 dev=00 Sep 17 hh:mm:59 hostname audit: <audit-1327> proctitle=2F7362696E2F617564697464002D6E I am still getting syslog messages from a process named "audit", but not from the "auditd" unit. Version-Release number of selected component (if applicable): selinux-policy-targeted-3.13.1-128.13.fc22.noarch How reproducible: On every boot Expected results: auditd must be allowed to append to /var/log/audit/audit.log and it probably should be allowed to read from this file (I am not sure about that). Additional info: If you don't feel this issue is security-sensitive, feel free to change the bug status.
Sorry, this bug is not security-sensitive. You can make it public. I originally thought it were security sensitive, but it just prevents auditd from logging, not selinux from working.
Could you attach raw AVC msgs?
How do I do that? Is that what I see in systemd's journalctl message?
Execute # seteneforce 0; setenforce 1 then try to reproduce it and run # ausearch -m avc -ts recent
You can also search them in /var/log/audit/audit.log.
There is nothing in /var/log/audit/audit.log for that time period the issue was present. Last entry was on 2015-09-15, first new entry on 2015-09-27. This issue has no more been present since updating to selinux-policy-targeted-3.13.1-128.16.fc22 from 3.13.1-128.13.fc22.