Description of problem: Typed on a terminal window "sudo shutdown -h 15:00", while SELinux is in Enforcing mode. selinux-policy-3.13.1-155.fc23.noarch SELinux is preventing systemd-logind from 'create' accesses on the file .#nologinDUxFTb. ***** Plugin catchall (100. confidence) suggests ************************** If você acredita que o systemd-logind deva ser permitido acesso de create em .#nologinDUxFTb file por default. Then você precisa reportar este como um erro. Você pode gerar um módulo de política local para permitir este acesso. Do permitir este acesso agora executando: # grep systemd-logind /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:systemd_logind_t:s0 Target Context system_u:object_r:var_run_t:s0 Target Objects .#nologinDUxFTb [ file ] Source systemd-logind Source Path systemd-logind Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-155.fc23.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.2.6-300.fc23.x86_64 #1 SMP Tue Nov 10 19:32:21 UTC 2015 x86_64 x86_64 Alert Count 6 First Seen 2015-11-22 05:25:00 BRST Last Seen 2015-11-24 14:55:16 BRST Local ID 1ad8b651-3406-4c9a-a8b1-426d8f8c7259 Raw Audit Messages type=AVC msg=audit(1448384116.310:594): avc: denied { create } for pid=740 comm="systemd-logind" name=".#nologinDUxFTb" scontext=system_u:system_r:systemd_logind_t:s0 tcontext=system_u:object_r:var_run_t:s0 tclass=file permissive=0 Hash: systemd-logind,systemd_logind_t,var_run_t,file,create Version-Release number of selected component: selinux-policy-3.13.1-155.fc23.noarch Additional info: reporter: libreport-2.6.3 hashmarkername: setroubleshoot kernel: 4.2.6-300.fc23.x86_64 type: libreport
Description of problem: shutdown -r Version-Release number of selected component: selinux-policy-3.13.1-155.fc23.noarch Additional info: reporter: libreport-2.6.3 hashmarkername: setroubleshoot kernel: 4.2.6-301.fc23.x86_64 type: libreport
We see this sporadically in the Cockpit integration tests. For example: https://fedorapeople.org/groups/cockpit/logs/pull-3327-9b09bfed-fedora-23/log.html
Cockpit is now working around this bug in its integration tests by ignoring the AVC: https://github.com/cockpit-project/cockpit/pull/3328
Currently systemd-logind is only allowed to create nologin file in /run, We should open it up transition on any file.
There is github discussion about this issue. The point is it is about a generic transition in /run vs. filename transitions which can not be applied here because of .#nologinDUxFTb. There are systemd fixes in systemd code to label these files correctly according the policy context. We can try to add a generic transition to rawhide to see if it works correctly.
Or get systemd-logind to claim a directory /run/logind/ or something
I like idea to store this in /run/logind or /run/systemd/. This should be best for us. Mirek, could you attach link with the discussion? Thank you.
Lets have this bug opened and have a discussion in https://github.com/systemd/systemd/pull/2100 Basically it will be fixed by systemd code changes. If we find a better solution we will remove these systemd code changes.
As we discussed it with Dominick if we get all proper confinements we can revert systemd SELinux code changes.
*** Bug 1305567 has been marked as a duplicate of this bug. ***
To be honest, I'm not sure what is solution here after github discussion. Can I make generic transition that systemd_logind_t can create any file in /run labeled as system_logind_var_run_t ? Mirek, What is your opinion?
Yes, I would go with this suggested solution from Dominick here.
Yes, I also agree with this solution. Thank you.
selinux-policy-3.13.1-158.9.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-ffbae3a870
selinux-policy-3.13.1-158.9.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-ffbae3a870
selinux-policy-3.13.1-158.9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
*** Bug 1315477 has been marked as a duplicate of this bug. ***
This is happening again on Fedora 24 with different AVC's, but essentially the same problem: https://bugzilla.redhat.com/show_bug.cgi?id=1317389