Bug 1065336
| Summary: | SELinux is preventing /usr/sbin/collectd from using the net_admin capability | ||
|---|---|---|---|
| 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 12:19:09 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: | |||
commit 6f8cc21c4ce00e17ca02aaa7e5e881825cc4406c
Author: Lukas Vrabec <lvrabec>
Date: Fri Feb 14 13:02:22 2014 +0100
Add net_admin capability in collectd policy
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. The update would almost assuredly not effect them. What AVC's are you seeing? I doubt that the changes for collectd did this---but it looks like there are tons of other changes in 3.12.1-126.
Here's the start of what I saw:
type=AVC msg=audit(1392796636.545:159): avc: denied { search } for pid=1511 comm="mysqld" name="tmp" dev="dm-0" ino=54526253 scontext=system_u:system_r:mysqld_t:s0 tcontext=system_u:object_r:init_tmp_t:s0 tclass=dir
type=AVC msg=audit(1392796638.290:161): avc: denied { search } for pid=1442 comm="/usr/sbin/httpd" name="tmp" dev="tmpfs" ino=24525 scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:init_tmp_t:s0 tclass=dir
type=AVC msg=audit(1392798771.747:478): avc: denied { search } for pid=2262 comm="httpd" name="tmp" dev="tmpfs" ino=28958 scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:init_tmp_t:s0 tclass=dir
type=AVC msg=audit(1392798771.747:479): avc: denied { search } for pid=2262 comm="httpd" name="tmp" dev="dm-0" ino=54526296 scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:init_tmp_t:s0 tclass=dir
type=AVC msg=audit(1392798771.747:481): avc: denied { search } for pid=2262 comm="httpd" name="tmp" dev="tmpfs" ino=28958 scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:init_tmp_t:s0 tclass=dir
This looks like the tmp dir is mislabled. It should not be init_tmp_t? ls -lZd /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). (In reply to Daniel Walsh from comment #6) > This looks like the tmp dir is mislabled. It should not be init_tmp_t? > > ls -lZd /tmp drwxrwxrwt. root root system_u:object_r:tmp_t:s0 /tmp// No idea how /tmp got mislabeled, if it is indeed mislabeled. 'restorecon -v /tmp' did not indicate that it was relabeling /tmp. 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@clio etc]# sealert -l 0024185d-a525-4fcc-9769-fec365191398 SELinux is preventing /usr/sbin/collectd from using the net_admin capability. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that collectd should have the net_admin capability 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:system_r:collectd_t:s0 Target Objects [ capability ] Source collectd Source Path /usr/sbin/collectd Port <Unknown> Host clio 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 clio Platform Linux clio 3.12.10-300.fc20.x86_64 #1 SMP Thu Feb 6 22:11:48 UTC 2014 x86_64 x86_64 Alert Count 117 First Seen 2014-02-14 12:19:51 CET Last Seen 2014-02-14 12:36:19 CET Local ID 0024185d-a525-4fcc-9769-fec365191398 Raw Audit Messages type=AVC msg=audit(1392377779.236:489): avc: denied { net_admin } for pid=18767 comm="collectd" capability=12 scontext=system_u:system_r:collectd_t:s0 tcontext=system_u:system_r:collectd_t:s0 tclass=capability type=SYSCALL msg=audit(1392377779.236:489): arch=x86_64 syscall=read success=yes exit=ESRCH a0=4 a1=7fc3fea5d000 a2=400 a3=22 items=0 ppid=1 pid=18767 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,collectd_t,capability,net_admin Version-Release number of selected component (if applicable): collectd-5.4.1-1.fc20.x86_64 selinux-policy-3.12.1-122.fc20.noarch How reproducible: Always Steps to Reproduce: 1. Turn on the conntrack plugin in /etc/collectd.conf 2. systemctl start collectd 3. Actual results: SELinux denials Expected results: No SELinux denials