Bug 1840278
| Summary: | systemctl reboot --firmware-setup requires write access to efivars | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Johannes Pfrang <johannespfrang> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 32 | CC: | dwalsh, grepl.miroslav, lvrabec, mmalik, plautrba, vmojzis, zpytela |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-3.14.5-40.fc32 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-06-11 22:57:16 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: | 1812955 | ||
| Bug Blocks: | |||
The issue also affects KDE Plasma System Settings -> Startup and Shutdown -> Desktop Session -> Enter UEFI setup on next restart:
SELinux is preventing systemd-logind from write access on the file OsIndications-8be4df61-93ca-11d2-aa0d-00e098032b8c.
***** Plugin catchall (100. confidence) suggests **************************
If you believe that systemd-logind should be allowed write access on the OsIndications-8be4df61-93ca-11d2-aa0d-00e098032b8c file 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-logind' --raw | audit2allow -M my-systemdlogind
# semodule -X 300 -i my-systemdlogind.pp
Additional Information:
Source Context system_u:system_r:systemd_logind_t:s0
Target Context system_u:object_r:efivarfs_t:s0
Target Objects OsIndications-8be4df61-93ca-11d2-aa0d-00e098032b8c
[ file ]
Source systemd-logind
Source Path systemd-logind
Port <Unknown>
Host johnp-pc
Source RPM Packages
Target RPM Packages
SELinux Policy RPM selinux-policy-targeted-3.14.5-39.fc32.noarch
Local Policy RPM selinux-policy-targeted-3.14.5-39.fc32.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name johnp-pc
Platform Linux johnp-pc 5.6.15-300.fc32.x86_64 #1 SMP Fri
May 29 14:23:59 UTC 2020 x86_64 x86_64
Alert Count 7
First Seen 2020-05-31 21:15:37 CEST
Last Seen 2020-06-01 14:14:37 CEST
Local ID c3dc3794-fbcf-477c-9313-7c65ea8a0817
Raw Audit Messages
type=AVC msg=audit(1591013677.890:754): avc: denied { write } for pid=1476 comm="systemd-logind" name="OsIndications-8be4df61-93ca-11d2-aa0d-00e098032b8c" dev="efivarfs" ino=19561 scontext=system_u:system_r:systemd_logind_t:s0 tcontext=system_u:object_r:efivarfs_t:s0 tclass=file permissive=0
Hash: systemd-logind,systemd_logind_t,efivarfs_t,file,write
I've submitted a Fedora PR to address the issue: https://github.com/fedora-selinux/selinux-policy/pull/363 commit c9d9038b2f1f76934f0f949bce521d602430037a (HEAD -> rawhide, upstream/rawhide, origin/rawhide, origin/HEAD)
Author: Zdenek Pytela <zpytela>
Date: Wed Jun 3 16:27:56 2020 +0200
Allow systemd-logind manage efivarfs files
Add new fs_manage_efivarfs_files() interface.
Allow systemd_logind_t fs_manage_efivarfs_files().
Resolves: rhbz#1840278
FEDORA-2020-ca8855e4de has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2020-ca8855e4de FEDORA-2020-ca8855e4de has been pushed to the Fedora 32 testing repository. In short time you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-ca8855e4de` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-ca8855e4de See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. selinux-policy-3.14.5-40.fc32 has been pushed to the Fedora 32 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: I cannot directly reboot into the EFI setup with Fedora 32 any more. This used to work with Fedora 31. Version-Release number of selected component (if applicable): selinux-policy-targeted-3.14.5-39.fc32.noarch Steps to Reproduce: 1. Run `systemctl reboot --firmware-setup` Actual results: Error message: Cannot indicate to EFI to boot into setup mode: Access denied Expected results: System reboots into EFI. Additional info: SELinux is preventing systemd-logind from 'write' accesses on the directory /sys/firmware/efi/efivars. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that systemd-logind should be allowed write access on the efivars 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-logind' --raw | audit2allow -M my-systemdlogind # semodule -X 300 -i my-systemdlogind.pp Additional Information: Source Context system_u:system_r:systemd_logind_t:s0 Target Context system_u:object_r:efivarfs_t:s0 Target Objects /sys/firmware/efi/efivars [ dir ] Source systemd-logind Source Path systemd-logind Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-3.14.5-39.fc32.noarch Local Policy RPM selinux-policy-targeted-3.14.5-39.fc32.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 5.6.14-300.fc32.x86_64 #1 SMP Wed May 20 20:47:32 UTC 2020 x86_64 x86_64 Alert Count 2 First Seen 2020-05-26 18:36:18 CEST Last Seen 2020-05-26 18:36:22 CEST Local ID a59f152b-ce13-4c85-a2d4-e60e1cb9aea0 Raw Audit Messages type=AVC msg=audit(1590510982.249:1233): avc: denied { write } for pid=1886 comm="systemd-logind" name="/" dev="efivarfs" ino=3134 scontext=system_u:system_r:systemd_logind_t:s0 tcontext=system_u:object_r:efivarfs_t:s0 tclass=dir permissive=0 Hash: systemd-logind,systemd_logind_t,efivarfs_t,dir,write