Bug 987629
| Summary: | SELinux is preventing /usr/sbin/NetworkManager from 'read' accesses on the lnk_file .#Red Hat openvpn. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Eric Blake <eblake> |
| Component: | selinux-policy-targeted | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Ben Levenson <benl> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 19 | CC: | dcbw, dominick.grift, dwalsh, eblake, jklimes, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:cb230b00400c0837506be24e76caf49b8a56db2f18bb76c771fa70a1269dca38 | ||
| Fixed In Version: | selinux-policy-3.12.1-66.fc19 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-07-26 23:07:16 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: | |||
The AVC popped up in the middle of the editing session that I started with: $ emacs -nw /etc/NetworkManager/system-connections/Red\ Hat\ openvpn Pushed a change to ignore files starting with ".#" d60dae255819ba052799f972d54ec1f28649ea27 Note that in future the NM won't be monitoring connection files, rather it would read them on explicit request. http://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/man/NetworkManager.conf.xml#n100 On the other hand, this is a SELinux bug, because it prevents 'read' accesses on the lnk_file. So if the valid configuration file was a link, SELinux would prevent reading the file.
commit 2a5b21a45572dc89cbf92e925fcb7193025c5a91
Author: Miroslav Grepl <mgrepl>
Date: Wed Jul 24 14:39:52 2013 +0200
Allow NM to read lnk files with NetworkManager_etc_rw_t
selinux-policy-3.12.1-66.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/selinux-policy-3.12.1-66.fc19 Package selinux-policy-3.12.1-66.fc19: * should fix your issue, * was pushed to the Fedora 19 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.12.1-66.fc19' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-13543/selinux-policy-3.12.1-66.fc19 then log in and leave karma (feedback). selinux-policy-3.12.1-66.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: I was editing an existing network manager openvpn file by hand with emacs, which creates the .#name backup during the duration of the edit. I don't think this is a SELinux bug, but rather a bug in NetworkManager for trying to treat editor temp files as though they also contain network setups. SELinux is preventing /usr/sbin/NetworkManager from 'read' accesses on the lnk_file .#Red Hat openvpn. ***** Plugin catchall (100. confidence) suggests *************************** If you believe that NetworkManager should be allowed read access on the .#Red Hat openvpn lnk_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 NetworkManager /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:NetworkManager_t:s0 Target Context unconfined_u:object_r:NetworkManager_etc_rw_t:s0 Target Objects .#Red Hat openvpn [ lnk_file ] Source NetworkManager Source Path /usr/sbin/NetworkManager Port <Unknown> Host (removed) Source RPM Packages NetworkManager-0.9.8.2-8.git20130709.fc19.x86_64 Target RPM Packages Policy RPM selinux-policy-3.12.1-65.fc19.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 3.9.9-302.fc19.x86_64 #1 SMP Sat Jul 6 13:41:07 UTC 2013 x86_64 x86_64 Alert Count 1 First Seen 2013-07-23 13:15:40 MDT Last Seen 2013-07-23 13:15:40 MDT Local ID cf07764d-74f4-487e-8c55-76790f63804e Raw Audit Messages type=AVC msg=audit(1374606940.958:3052): avc: denied { read } for pid=738 comm="NetworkManager" name=2E2352656420486174206F70656E76706E dev="dm-2" ino=527723 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=unconfined_u:object_r:NetworkManager_etc_rw_t:s0 tclass=lnk_file type=SYSCALL msg=audit(1374606940.958:3052): arch=x86_64 syscall=stat success=no exit=EACCES a0=7f2b2bbae820 a1=7fff486d0f10 a2=7fff486d0f10 a3=4000 items=0 ppid=1 pid=738 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=NetworkManager exe=/usr/sbin/NetworkManager subj=system_u:system_r:NetworkManager_t:s0 key=(null) Hash: NetworkManager,NetworkManager_t,NetworkManager_etc_rw_t,lnk_file,read Additional info: reporter: libreport-2.1.5 hashmarkername: setroubleshoot kernel: 3.9.9-302.fc19.x86_64 type: libreport