| Summary: | SELinux is preventing NFS mount in user /home directory | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | srakitnican <samuel.rakitnican> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 25 | CC: | dominick.grift, dwalsh, lvrabec, mgrepl, oliver.henshaw, plautrba, pmoore, ssekidde |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-12-12 10:47:23 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: | |
It seems the initial issue of "home-srakit-Music.mount: Failed to check directory /home/srakit/Music: Permission denied" was a configuration issue (client ip address changed). After sorting that out NFS mount is mounting like it should. Still, initial SELinux denial is in effect, systemd is denied "read access on the Music directory". In addition to that, trying to configure systemd to automount network share to user /home directory is blocked by selinux.
SELinux is preventing systemd from read access on the directory Music.
***** Plugin catchall (100. confidence) suggests **************************
If you believe that systemd should be allowed read access on the Music directory 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:
# ausearch -c 'systemd' --raw | audit2allow -M my-systemd
# semodule -X 300 -i my-systemd.pp
Additional Information:
Source Context system_u:system_r:init_t:s0
Target Context unconfined_u:object_r:audio_home_t:s0
Target Objects Music [ dir ]
Source systemd
Source Path systemd
Port <Unknown>
Host oldiemodern
Source RPM Packages
Target RPM Packages
Policy RPM selinux-policy-3.13.1-225.6.fc25.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name oldiemodern
Platform Linux oldiemodern 4.9.9-200.fc25.x86_64 #1 SMP Thu
Feb 9 17:28:13 UTC 2017 x86_64 x86_64
Alert Count 13
First Seen 2017-02-11 16:55:37 CET
Last Seen 2017-02-15 19:32:36 CET
Local ID 98331ebf-40b5-4949-8ba8-95039e369248
Raw Audit Messages
type=AVC msg=audit(1487183556.929:630): avc: denied { read } for pid=1 comm="systemd" name="Music" dev="sda3" ino=1704013 scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:object_r:audio_home_t:s0 tclass=dir permissive=0
Hash: systemd,init_t,audio_home_t,dir,read
SELinux is preventing systemd from mounton access on the directory /home/srakit/Music.
***** Plugin catchall (100. confidence) suggests **************************
If you believe that systemd should be allowed mounton access on the Music directory 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:
# ausearch -c 'systemd' --raw | audit2allow -M my-systemd
# semodule -X 300 -i my-systemd.pp
Additional Information:
Source Context system_u:system_r:init_t:s0
Target Context unconfined_u:object_r:audio_home_t:s0
Target Objects /home/srakit/Music [ dir ]
Source systemd
Source Path systemd
Port <Unknown>
Host oldiemodern
Source RPM Packages
Target RPM Packages
Policy RPM selinux-policy-3.13.1-225.6.fc25.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name oldiemodern
Platform Linux oldiemodern 4.9.9-200.fc25.x86_64 #1 SMP Thu
Feb 9 17:28:13 UTC 2017 x86_64 x86_64
Alert Count 3
First Seen 2017-02-15 19:16:59 CET
Last Seen 2017-02-15 19:32:36 CET
Local ID 43c3eb47-381c-415a-a0b5-f7eef699edff
Raw Audit Messages
type=AVC msg=audit(1487183556.929:631): avc: denied { mounton } for pid=1 comm="systemd" path="/home/srakit/Music" dev="sda3" ino=1704013 scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:object_r:audio_home_t:s0 tclass=dir permissive=0
Hash: systemd,init_t,audio_home_t,dir,mounton
I see the 'read' denied part of this when bind-mounting Music directories from a data disk onto home.
# findmnt
...
├─/home /dev/mapper/VGFastAlpine-LVHome
├─/home/oliver/Music /dev/mapper/VGAlpine-LVData[/oliver/Music]
│ └─/home/oliver/Videos /dev/mapper/VGAlpine-LVData[/oliver/Videos]
Videos/ shows no problems but I see these messages in the journal:
avc: denied { read } for pid=1 comm="systemd" name="Music" dev="dm-6" ino=11927598 scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:object_r:audio_home_t:s0 tclass=dir permissive=0
home-oliver-Music.mount: Failed to check directory /home/oliver/Music: Permission denied
though it's just warnings (it's trying to fsck?) and there's no problem reading the directories. I also see this with "tcontext=unconfined_u:object_r:virt_home_t:s0" bind-mounted directories.
This message is a reminder that Fedora 25 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 25. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '25'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 25 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed. |
Description of problem: SELinux is preventing systemd from read access on the directory Music. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that systemd should be allowed read access on the Music directory 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: # ausearch -c 'systemd' --raw | audit2allow -M my-systemd # semodule -X 300 -i my-systemd.pp Additional Information: Source Context system_u:system_r:init_t:s0 Target Context unconfined_u:object_r:audio_home_t:s0 Target Objects Music [ dir ] Source systemd Source Path systemd Port <Unknown> Host rawhide Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-224.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name rawhide Platform Linux rawhide 4.8.11-300.fc25.x86_64 #1 SMP Mon Nov 28 18:24:51 UTC 2016 x86_64 x86_64 Alert Count 16 First Seen 2016-11-03 08:36:24 CET Last Seen 2016-12-09 13:55:32 CET Local ID 9a8d9d5f-83b5-4e7d-97e2-c1b86cdd8865 Raw Audit Messages type=AVC msg=audit(1481288132.702:482): avc: denied { read } for pid=1 comm="systemd" name="Music" dev="md126p3" ino=939524611 scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:object_r:audio_home_t:s0 tclass=dir permissive=0 Hash: systemd,init_t,audio_home_t,dir,read Version-Release number of selected component (if applicable): selinux-policy-3.13.1-224.fc25.noarch selinux-policy-targeted-3.13.1-224.fc25.noarch How reproducible: By restarting systemd .mount Actual results: * home-srakit-Music.mount - /home/srakit/Music Loaded: loaded (/etc/fstab; generated; vendor preset: disabled) Active: failed (Result: exit-code) since Fri 2016-12-09 13:55:32 CET; 16min ago Where: /home/srakit/Music What: 192.168.1.20:/home/srakit/Music Docs: man:fstab(5) man:systemd-fstab-generator(8) Process: 15194 ExecMount=/usr/bin/mount 192.168.1.20:/home/srakit/Music /home/srakit/Music -t nfs -o defaults,x-systemd.requires=network.target (code=exited, status=32) Dec 09 13:55:32 rawhide systemd[1]: home-srakit-Music.mount: Failed to check directory /home/srakit/Music: Permission denied Dec 09 13:55:32 rawhide systemd[1]: Mounting /home/srakit/Music... Dec 09 13:55:32 rawhide systemd[1]: home-srakit-Music.mount: Mount process exited, code=exited status=32 Dec 09 13:55:32 rawhide mount[15194]: mount.nfs: access denied by server while mounting 192.168.1.20:/home/srakit/Music Dec 09 13:55:32 rawhide systemd[1]: Failed to mount /home/srakit/Music. Dec 09 13:55:32 rawhide systemd[1]: home-srakit-Music.mount: Unit entered failed state. Expected results: Additional info: