Bug 1467468
| Summary: | SELinux is preventing systemd-tmpfile from using the 'dac_read_search' capabilities. | |||
|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jason D. Clinton <me> | |
| 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: | alfema.kk, andrea.vai, dominick.grift, dwalsh, grinnz, gsgatlin, heldwin, igiwatson, lvrabec, mallokatu, marcvanwageningen, meens78, mgrepl, pep, plautrba, pmoore, projects.rg, rocketraman, ssekidde, striker.pena, titaniumkeys, y9t7sypezp | |
| Target Milestone: | --- | |||
| Target Release: | --- | |||
| Hardware: | x86_64 | |||
| OS: | Unspecified | |||
| Whiteboard: | abrt_hash:488cd3dfc396a6bc2d2885967a02d8279cdaca45e05e784378fb982a4bbc1cd7;VARIANT_ID=workstation; | |||
| Fixed In Version: | selinux-policy-3.13.1-225.22.fc25 | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1474940 (view as bug list) | Environment: | ||
| Last Closed: | 2017-12-12 10:27:00 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: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1474940 | |||
I think a lot of these are caused by some fixes to the kernel that now does dac_read_search before dac_override. We could probable replace a lot of dac_override access with dac_read_search. Description of problem: Problem first occured after installing several system updates. Since may 2017 no updates were intalled. Version-Release number of selected component: selinux-policy-3.13.1-225.19.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.12.8-200.fc25.x86_64 type: libreport Description of problem: Po startu x-ek st objevil na liště troubleshot Version-Release number of selected component: selinux-policy-3.13.1-225.19.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.12.8-200.fc25.x86_64 type: libreport *** Bug 1488709 has been marked as a duplicate of this bug. *** 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-tmpfile from using the 'dac_read_search' capabilities. ***** Plugin dac_override (91.4 confidence) suggests ********************** If you want to help identify if domain needs this access or you have a file with the wrong permissions on your system Then turn on full auditing to get path information about the offending file and generate the error again. Do Turn on full auditing # auditctl -w /etc/shadow -p w Try to recreate AVC. Then execute # ausearch -m avc -ts recent If you see PATH record check ownership/permissions on file, and fix it, otherwise report as a bugzilla. ***** Plugin catchall (9.59 confidence) suggests ************************** If you believe that systemd-tmpfile should have the dac_read_search 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: # ausearch -c 'systemd-tmpfile' --raw | audit2allow -M my-systemdtmpfile # semodule -X 300 -i my-systemdtmpfile.pp Additional Information: Source Context system_u:system_r:systemd_tmpfiles_t:s0 Target Context system_u:system_r:systemd_tmpfiles_t:s0 Target Objects Unknown [ capability ] Source systemd-tmpfile Source Path systemd-tmpfile Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-225.18.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.12.0-1.fc27.x86_64 #1 SMP Mon Jul 3 15:45:36 UTC 2017 x86_64 x86_64 Alert Count 731 First Seen 2017-05-21 20:26:54 MDT Last Seen 2017-07-03 15:51:59 MDT Local ID 1dad7e22-afc2-4464-a3bc-d49ef9e4f7ef Raw Audit Messages type=AVC msg=audit(1499118719.51:257): avc: denied { dac_read_search } for pid=3756 comm="systemd-tmpfile" capability=2 scontext=system_u:system_r:systemd_tmpfiles_t:s0 tcontext=system_u:system_r:systemd_tmpfiles_t:s0 tclass=capability permissive=0 Hash: systemd-tmpfile,systemd_tmpfiles_t,systemd_tmpfiles_t,capability,dac_read_search Version-Release number of selected component: selinux-policy-3.13.1-225.18.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.12.0-1.fc27.x86_64 type: libreport Potential duplicate: bug 1451385