Bug 1726166
| Summary: | the lvmdbusd service runs as unconfined_service_t | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Milos Malik <mmalik> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED ERRATA | QA Contact: | Milos Malik <mmalik> |
| Severity: | medium | Docs Contact: | Jan Fiala <jafiala> |
| Priority: | medium | ||
| Version: | 8.1 | CC: | lvrabec, mmalik, nknazeko, plautrba, ssekidde, zpytela |
| Target Milestone: | rc | Keywords: | Patch |
| Target Release: | 8.2 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Enhancement | |
| Doc Text: |
.The `lvmdbusd` service is now confined by SELinux
The `lvmdbusd` service provides a D-Bus API to the logical volume manager (LVM).
Previously, the `lvmdbusd` daemon could not transition to the `lvm_t` context even though the SELinux policy for `lvm_t` was defined. As a consequence, the `lvmdbusd` daemon was executed in the `unconfined_service_t` domain and SELinux labeled `lvmdbusd` as unconfined.
With this update, the `lvmdbusd` executable file has the `lvm_exec_t` context defined and `lvmdbusd` can now be used correctly with SELinux in enforcing mode.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-04-28 16:40:35 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: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1726199, 1755139 | ||
PR for Fedora: https://github.com/fedora-selinux/selinux-policy/pull/271# Added gen_context macro in lvm.fc to run lvmdbusd service as lvm_t. Steps to Reproduce: # service lvm2-lvmdbusd start Redirecting to /bin/systemctl start lvm2-lvmdbusd.service # service lvm2-lvmdbusd status Redirecting to /bin/systemctl status lvm2-lvmdbusd.service ● lvm2-lvmdbusd.service - LVM2 D-Bus service Loaded: loaded (/usr/lib/systemd/system/lvm2-lvmdbusd.service; disabled; vendor preset: disabled) Active: active (running) since Wed 2019-08-07 10:59:22 CEST; 12s ago Docs: man:lvmdbusd(8) Main PID: 9587 (lvmdbusd) Tasks: 5 (limit: 4915) Memory: 13.9M CGroup: /system.slice/lvm2-lvmdbusd.service └─9587 /usr/bin/python3 /usr/sbin/lvmdbusd Aug 07 10:59:22 localhost.localdomain systemd[1]: Starting LVM2 D-Bus service... Aug 07 10:59:22 localhost.localdomain systemd[1]: Started LVM2 D-Bus service. # ps -efZ | grep lvmdbusd system_u:system_r:lvm_t:s0 root 9587 1 0 10:59 ? 00:00:00 /usr/bin/python3 /usr/sbin/lvmdbusd # ls -Z /usr/sbin/lvmdbusd system_u:object_r:lvm_exec_t:s0 /usr/sbin/lvmdbusd Actual results: * the lvmdbusd service is confined commit 53ed93382217f9541bb9b125c93ff685046d91e1 (HEAD -> rawhide, origin/rawhide)
Author: Nikola Knazekova <nknazeko>
Date: Wed Aug 7 13:34:47 2019 +0200
Run lvmdbusd service as lvm_t
Label binary /usr/sbin/lvmdbusd as lvm_exec_t to run lvmdbusd service as lvm_t.
Lvmdbusd - a service which provides a D-Bus API to the logical volume manager (LVM).
Fixed in Fedora Rawhide and Fedora 30.
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, 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-2020:1773 |
Description of problem: * the lvmdbusd service is shipped but it is not confined Version-Release number of selected component (if applicable): lvm2-2.03.05-1.el8.x86_64 lvm2-dbusd-2.03.05-1.el8.noarch lvm2-libs-2.03.05-1.el8.x86_64 lvm2-lockd-2.03.05-1.el8.x86_64 selinux-policy-3.14.3-9.el8.noarch selinux-policy-targeted-3.14.3-9.el8.noarch How reproducible: * always Steps to Reproduce: # service lvm2-lvmdbusd status Redirecting to /bin/systemctl status lvm2-lvmdbusd.service ● lvm2-lvmdbusd.service - LVM2 D-Bus service Loaded: loaded (/usr/lib/systemd/system/lvm2-lvmdbusd.service; disabled; vendor preset: disabled) Active: inactive (dead) Docs: man:lvmdbusd(8) # service lvm2-lvmdbusd start Redirecting to /bin/systemctl start lvm2-lvmdbusd.service # service lvm2-lvmdbusd status Redirecting to /bin/systemctl status lvm2-lvmdbusd.service ● lvm2-lvmdbusd.service - LVM2 D-Bus service Loaded: loaded (/usr/lib/systemd/system/lvm2-lvmdbusd.service; disabled; vendor preset: disabled) Active: active (running) since Tue 2019-07-02 05:14:54 EDT; 1s ago Docs: man:lvmdbusd(8) Main PID: 5379 (lvmdbusd) Tasks: 5 (limit: 11518) Memory: 13.4M CGroup: /system.slice/lvm2-lvmdbusd.service └─5379 /usr/libexec/platform-python /usr/sbin/lvmdbusd Jul 02 05:14:54 ci-vm-10-0-136-62.hosted.upshift.rdu2.redhat.com systemd[1]: Starting LVM2 D-Bus service... Jul 02 05:14:54 ci-vm-10-0-136-62.hosted.upshift.rdu2.redhat.com systemd[1]: Started LVM2 D-Bus service. # ps -efZ | grep lvmdbusd system_u:system_r:unconfined_service_t:s0 root 5379 1 1 05:14 ? 00:00:00 /usr/libexec/platform-python /usr/sbin/lvmdbusd unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 5400 4655 0 05:15 pts/0 00:00:00 grep --color=auto lvmdbusd # ls -Z /usr/sbin/lvmdbusd system_u:object_r:bin_t:s0 /usr/sbin/lvmdbusd # Actual results: * the lvmdbusd service is not confined Expected results: * the lvmdbusd service is confined