Bug 1927551
| Summary: | SELinux block systemd from running scripts in /usr/lib/systemd/system-sleep | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Orion Poplawski <orion> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED ERRATA | QA Contact: | Milos Malik <mmalik> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 8.3 | CC: | lvrabec, mmalik, plautrba, ssekidde |
| Target Milestone: | rc | Keywords: | Triaged |
| Target Release: | 8.5 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-3.14.3-69.el8 | Doc Type: | No Doc Update |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-11-09 19:42:58 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: | |||
Changing to lib_t doesn't help. Changing to systemd_sleed_exec_t leads to a different denial:
avc: denied { getattr } for pid=144222 comm="(sd-executor)" path="/usr/lib/systemd/system-sleep" dev="dm-1" ino=134845448 scontext=system_u:system_r:systemd_sleep_t:s0 tcontext=system_u:object_r:systemd_sleep_exec_t:s0 tclass=dir permissive=0
I've submitted a Fedora PR to address the issue: https://github.com/fedora-selinux/selinux-policy/pull/612 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (selinux-policy bug fix and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:4420 |
Description of problem: I placed a script in /usr/lib/systemd/system-sleep but it does not get executed: type=AVC msg=audit(1612929018.423:559): avc: denied { execute } for pid=69804 comm="(direxec)" name="bitdefender-sleep" dev="dm-1" ino=138514047 scontext=system_u:system_r:systemd_sleep_t:s0 tcontext=system_u:object_r:bin_t:s0 tclass=file permissive=0 Feb 09 07:17:28 systemd[1]: Starting Suspend... Feb 09 07:17:28 [133863]: Failed to execute /usr/lib/systemd/system-sleep/bitdefender-sleep: Permission denied Feb 09 07:17:28 [133862]: /usr/lib/systemd/system-sleep/bitdefender-sleep failed with exit status 1. Version-Release number of selected component (if applicable): selinux-policy-3.14.3-54.el8_3.2.noarch # ls -lZa /usr/lib/systemd/system-sleep total 12 drwxr-xr-x. 2 root root system_u:object_r:bin_t:s0 31 Dec 17 16:30 ./ drwxr-xr-x. 16 root root system_u:object_r:lib_t:s0 4096 Jan 8 07:18 ../ -rwxr-xr-x. 1 root root system_u:object_r:bin_t:s0 150 Sep 5 10:49 bitdefender-sleep* allow systemd_sleep_t systemd_sleep_exec_t:file { entrypoint execute getattr ioctl lock map open read }; Perhaps /usr/lib/systemd/system-sleep and it's contents should get labeled systemd_sleep_exec_t ? FWIW - /usr/lib/systemd/system-shutdown is labeled lib_t instead of bin_t. restorecon doesn't change any of these labels.