Bug 1065698
| Summary: | SELinux is preventing /usr/sbin/collectd from write access on the sock_file /var/lib/mysql/mysql.sock. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Joel Uckelman <uckelman> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 20 | CC: | dominick.grift, dwalsh, lvrabec, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-3.12.1-127.fc20 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-03-12 12:19:25 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: | |||
Hi, Could you reproduce this bug in Permissive mode, and paste here AVC logs? Thank you. (In reply to Lukas Vrabec from comment #1) > Hi, > > Could you reproduce this bug in Permissive mode, and paste here AVC logs? > > Thank you. This is what I see in /var/log/audit.log after restarting collectd in permissive mode: type=SERVICE_START msg=audit(1392551254.505:43362): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg=' comm="collectd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' type=AVC msg=audit(1392551254.527:43363): avc: denied { write } for pid=2195 comm="collectd" name="mysql.sock" dev="dm-0" ino=54526298 scontext=system_u:system_r:collectd_t:s0 tcontext=system_u:object_r:mysqld_var_run_t:s0 tclass=sock_file type=SYSCALL msg=audit(1392551254.527:43363): arch=c000003e syscall=42 success=yes exit=0 a0=7 a1=7ffd5285f840 a2=6e a3=7ffd5285f4c0 items=0 ppid=1 pid=2195 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm="collectd" exe="/usr/sbin/collectd" subj=system_u:system_r:collectd_t:s0 key=(null) I guess collectd needs to use a mysql database. commit bc0fe809a294714ad4a8e6fec88ff9fb10515988 fixes this in git. (In reply to Daniel Walsh from comment #3) > I guess collectd needs to use a mysql database. To clarify: collectd needs to connect to mysqld if you've turned on the plugin for monitoring mysqld. collectd doesn't store data in a mysql database. > commit bc0fe809a294714ad4a8e6fec88ff9fb10515988 fixes this in git. Thanks for the fix. selinux-policy-3.12.1-126.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/selinux-policy-3.12.1-126.fc20 The updated policy works for collectd---but completely breaks httpd and mariadb. It looks like it's denying them access to /tmp. Package selinux-policy-3.12.1-126.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.12.1-126.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-2801/selinux-policy-3.12.1-126.fc20 then log in and leave karma (feedback). Package selinux-policy-3.12.1-127.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.12.1-127.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-2801/selinux-policy-3.12.1-127.fc20 then log in and leave karma (feedback). selinux-policy-3.12.1-127.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: [root@one uckelman]# sealert -l 20668dc3-e73d-4194-bdc2-642d1e6ab6c8 SELinux is preventing /usr/sbin/collectd from write access on the sock_file /var/lib/mysql/mysql.sock. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that collectd should be allowed write access on the mysql.sock sock_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 collectd /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:collectd_t:s0 Target Context system_u:object_r:mysqld_var_run_t:s0 Target Objects /var/lib/mysql/mysql.sock [ sock_file ] Source collectd Source Path /usr/sbin/collectd Port <Unknown> Host one Source RPM Packages collectd-5.4.1-1.fc20.x86_64 Target RPM Packages Policy RPM selinux-policy-3.12.1-122.fc20.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name one Platform Linux one 3.12.10-300.fc20.x86_64 #1 SMP Thu Feb 6 22:11:48 UTC 2014 x86_64 x86_64 Alert Count 10 First Seen 2014-02-16 00:18:06 CET Last Seen 2014-02-16 00:24:57 CET Local ID 20668dc3-e73d-4194-bdc2-642d1e6ab6c8 Raw Audit Messages type=AVC msg=audit(1392506697.155:37166): avc: denied { write } for pid=28189 comm="collectd" name="mysql.sock" dev="dm-0" ino=54526298 scontext=system_u:system_r:collectd_t:s0 tcontext=system_u:object_r:mysqld_var_run_t:s0 tclass=sock_file type=SYSCALL msg=audit(1392506697.155:37166): arch=x86_64 syscall=connect success=no exit=EACCES a0=6 a1=7f1af644e840 a2=6e a3=7f1af644e4c0 items=0 ppid=1 pid=28189 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=collectd exe=/usr/sbin/collectd subj=system_u:system_r:collectd_t:s0 key=(null) Hash: collectd,collectd_t,mysqld_var_run_t,sock_file,write Version-Release number of selected component (if applicable): selinux-policy-3.12.1-122.fc20.noarch collectd-5.4.1-1.fc20.x86_64 collectd-mysql-5.4.1-1.fc20.x86_64 How reproducible: Always Steps to Reproduce: 1. Enable mysql plugin for collectd. Actual results: SELinux denials when collectd tries to poll the local mysqld. Expected results: No denials.