Bug 720315
| Summary: | SELinux is preventing /usr/sbin/mcelog from 'create open' accesses on the file /var/log/mcelog. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | John Freed <okrh> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 14 | CC: | dominick.grift, dwalsh, mak_s, mgrepl, mishu |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-3.9.7-44.fc14 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-08-12 11:01:52 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
I think it is best if we make the log file labeled mcelog_log_t and add it to policy. Fixed in selinux-policy-3.9.7-44.fc14 selinux-policy-3.9.7-44.fc14 has been submitted as an update for Fedora 14. https://admin.fedoraproject.org/updates/selinux-policy-3.9.7-44.fc14 Package selinux-policy-3.9.7-44.fc14: * should fix your issue, * was pushed to the Fedora 14 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.9.7-44.fc14' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/selinux-policy-3.9.7-44.fc14 then log in and leave karma (feedback). selinux-policy-3.9.7-44.fc14 has been pushed to the Fedora 14 stable repository. If problems still persist, please make note of it in this bug report. selinux-policy-3.9.7-44.fc14 has been pushed to the Fedora 14 stable repository. If problems still persist, please make note of it in this bug report. |
SELinux is preventing /usr/sbin/mcelog from 'create open' accesses on the file /var/log/mcelog. SELinux is preventing /usr/sbin/mcelog from 'write add_name' accesses on the directory /var/log. Description of Problem: This occurs when the mcelog cron job runs. The default cron job reads as follows: /usr/sbin/mcelog --ignorenodev --filter >>/var/log/mcelog An alternative (documented) method, avoiding the shell redirect, is: /usr/sbin/mcelog --ignorenodev --filter --logfile=/var/log/mcelog The first (redirect) method produces a file with this context: system_u:object_r:cron_log_t:s0 (This is also the context produced by restorecon) The second method produces a file with this context: system_u:object_r:var_log_t:s0 To get the second one to function, regardless of whether the logfile existed or had been created with a cron_log_t type, I needed to do the following: #============= start module mcelog.te ============== module mcelog 1.0; require { type mcelog_t; type var_log_t; type cron_log_t; class file { create open }; class dir { write add_name }; } #============= mcelog_t ============== allow mcelog_t cron_log_t:file open; allow mcelog_t var_log_t:dir { write add_name }; allow mcelog_t var_log_t:file { create open }; #============= end module mcelog.te ============== The ONLY other cron job I could find on my system that uses a shell redirect to a logfile is prelink, but that has its own context of prelink_log_t. It seems sensible to me to have mcelog follow that route and have a type of mcelog_log_t, but I leave that to wiser heads. #============= other info ============== Source Path /usr/sbin/mcelog Source RPM Packages mcelog-0.9pre1-0.1.fc13 Policy RPM selinux-policy-3.9.7-40.fc14 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Platform Linux (removed) 2.6.35.13-92.fc14.x86_64 #1 SMP Sat May 21 17:26:25 UTC 2011 x86_64 x86_64