Bug 1071505
| Summary: | SELinux is preventing /usr/sbin/collectd from 'write' accesses on the sock_file libvirt-sock-ro. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Andrew Cooks <acooks> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 20 | CC: | apevec, dominick.grift, dwalsh, lvrabec, mail, mgrepl, ruben |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:ed2f1f1619351972cb2aca733ebb5b767140a253d90ed4d18d21168ab7e427b9 | ||
| Fixed In Version: | selinux-policy-3.12.1-149.fc20 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-04-09 13:21:28 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: | |||
Is collectd supposed to connect to libvirt? I believe the libvirt plugin[1] for collectd, installed by the collectd-virt package[2] is causing the violation. (I specifically installed collectd-virt; it wasn't pulled in as a collectd dependency). My first guess is that it doesn't need write access and if it does it should open /run/libvirt/libvirt-sock instead of /run/libvirt/libvirt-sock-ro [3]. Since this bug report should be for the collectd-virt package, not collectd or selinux-policy, so I'm changing the "component" from selinux-policy to the closest matching thing: collectd. 1. https://collectd.org/wiki/index.php/Plugin:libvirt 2. https://apps.fedoraproject.org/packages/collectd-virt 3. http://libvirt.org/guide/html/Application_Development_Guide-Architecture-Transports.html In reply to comment #1 The libvirt plugin for collectd sends commands to the ro socket using the libvirt api. Those are just read-only commands from a libvirt point of view, but it still needs to be able to write to the socket. Can this be adjusted in the policy? commit 3ff85522ee22c61c6d24700037b864dc69f4634f fixes this in git. selinux-policy-3.12.1-149.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/selinux-policy-3.12.1-149.fc20 Package selinux-policy-3.12.1-149.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-3.12.1-149.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-4604/selinux-policy-3.12.1-149.fc20 then log in and leave karma (feedback). selinux-policy-3.12.1-149.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: # yum install collectd.x86_64 # systemctl start collectd.service # systemctl status collectd.service SELinux is preventing /usr/sbin/collectd from 'write' accesses on the sock_file libvirt-sock-ro. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that collectd should be allowed write access on the libvirt-sock-ro 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:virt_var_run_t:s0 Target Objects libvirt-sock-ro [ sock_file ] Source collectd Source Path /usr/sbin/collectd Port <Unknown> Host (removed) 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 Permissive Host Name (removed) Platform Linux (removed) 3.13.4-200.fc20.x86_64 #1 SMP Thu Feb 20 23:00:47 UTC 2014 x86_64 x86_64 Alert Count 4 First Seen 2014-03-01 11:36:55 WST Last Seen 2014-03-01 11:39:14 WST Local ID fecbd39b-e838-40bb-ae71-08acc8b38924 Raw Audit Messages type=AVC msg=audit(1393645154.655:1460): avc: denied { write } for pid=3416 comm="collectd" name="libvirt-sock-ro" dev="tmpfs" ino=22162 scontext=system_u:system_r:collectd_t:s0 tcontext=system_u:object_r:virt_var_run_t:s0 tclass=sock_file type=AVC msg=audit(1393645154.655:1460): avc: denied { connectto } for pid=3416 comm="collectd" path="/run/libvirt/libvirt-sock-ro" scontext=system_u:system_r:collectd_t:s0 tcontext=system_u:system_r:virtd_t:s0-s0:c0.c1023 tclass=unix_stream_socket type=SYSCALL msg=audit(1393645154.655:1460): arch=x86_64 syscall=connect success=yes exit=0 a0=5 a1=7f338dc66790 a2=6e a3=21 items=0 ppid=1 pid=3416 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,virt_var_run_t,sock_file,write Additional info: reporter: libreport-2.1.12 hashmarkername: setroubleshoot kernel: 3.13.4-200.fc20.x86_64 type: libreport