Bug 1177051
| Summary: | bacula-fd generates SELinux alerts when it tries to back up a FIFO. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Paul Johnson <paul> |
| Component: | selinux-policy-targeted | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Ben Levenson <benl> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 21 | CC: | dwalsh |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-3.13.1-105.fc21 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-01-30 23:55:30 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: | |||
Is Bacula supposed to be doing stuff in the users homedir? (In reply to Daniel Walsh from comment #1) > Is Bacula supposed to be doing stuff in the users homedir? This is part of backing up. In order to back up a file (or whatever) Bacula first has to stat(2) it. It doesn't seem to have permission to call stat on a FIFO. 750774c3140cfcc5fa4a7a71613be19fa7c47679 fixes this in git. selinux-policy-3.13.1-105.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/selinux-policy-3.13.1-105.fc21 Package selinux-policy-3.13.1-105.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.13.1-105.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2015-1337/selinux-policy-3.13.1-105.fc21 then log in and leave karma (feedback). selinux-policy-3.13.1-105.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: If you run Bacula with SELinux enabled then you get an alert when it the bacula-fd component tries to read a FIFO file. I guess that the Policy is missing a case for bacula access to a FIFO. Version-Release number of selected component (if applicable): selinux-policy-3.13.1-103.fc21.noarch bacula-client-7.0.5-2.fc21.x86_64 How reproducible: Every time. Steps to Reproduce: 1. Enable SELinux 2. Create a named FIFO. 3. Back up the file system containing the FIFO. Actual results: SELinux alert (example below) Expected results: Backup completes without alert. Additional info: Full Alert details follow: SELinux is preventing /usr/sbin/bacula-fd from getattr access on the fifo_file /home/paj/.ICAClient/.tmp/.SR_BEACON_LINUXWrite. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that bacula-fd should be allowed getattr access on the .SR_BEACON_LINUXWrite fifo_file by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # grep bacula-fd /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:bacula_t:s0 Target Context unconfined_u:object_r:mozilla_home_t:s0 Target Objects /home/paj/.ICAClient/.tmp/.SR_BEACON_LINUXWrite [ fifo_file ] Source bacula-fd Source Path /usr/sbin/bacula-fd Port <Unknown> Host eiffel.house Source RPM Packages bacula-client-7.0.5-2.fc21.x86_64 Target RPM Packages Policy RPM selinux-policy-3.13.1-103.fc21.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name eiffel.house Platform Linux eiffel.house 3.17.6-300.fc21.x86_64 #1 SMP Mon Dec 8 22:29:32 UTC 2014 x86_64 x86_64 Alert Count 2 First Seen 2014-12-23 23:48:48 GMT Last Seen 2014-12-23 23:48:48 GMT Local ID 757cf69a-995e-4b7e-8454-f749e837421d Raw Audit Messages type=AVC msg=audit(1419378528.677:1231): avc: denied { getattr } for pid=14687 comm="bacula-fd" path="/home/paj/.ICAClient/.tmp/.SR_BEACON_LINUXWrite" dev="dm-3" ino=1052280 scontext=system_u:system_r:bacula_t:s0 tcontext=unconfined_u:object_r:mozilla_home_t:s0 tclass=fifo_file permissive=0 type=SYSCALL msg=audit(1419378528.677:1231): arch=x86_64 syscall=lstat success=no exit=EACCES a0=7fcf8c08e198 a1=7fcf8c00bad0 a2=7fcf8c00bad0 a3=0 items=0 ppid=1 pid=14687 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=bacula-fd exe=/usr/sbin/bacula-fd subj=system_u:system_r:bacula_t:s0 key=(null) Hash: bacula-fd,bacula_t,mozilla_home_t,fifo_file,getattr