Bug 1648978
| Summary: | SELinux is preventing plymouthd from 'getattr' accesses on the diretório /sys/firmware/efi/efivars. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | flaviohenriquedesousaribeiro |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 29 | CC: | alex.bramford, alon1.dotan, artemio.silva, AsshatAdmiral, bill_pachc, bugzilla.redhat.com, danielsvpeter, dominik, dwalsh, ep, goodmirek, hobbes1069, jwilliams, jylo06g, lvrabec, mailinglists35, matthias.andree, mgrepl, mike, mike, milan.kerslager, plautrba, ppywlkiqletw, prd-fedora, redhat, samdraiz, xzj8b3, zhelezov, zpytela |
| Target Milestone: | --- | Keywords: | Reopened |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:bcbdd326b2fbbaa7d37c1200b991217a36ee36fcd7546fb7e30e079268a793ac;VARIANT_ID=matecompiz; | ||
| Fixed In Version: | selinux-policy-3.14.2-47.fc29 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-01-21 12:56:38 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: | |||
Description of problem: Defauth Version-Release number of selected component: selinux-policy-3.14.2-42.fc29.noarch Additional info: reporter: libreport-2.9.6 hashmarkername: setroubleshoot kernel: 4.19.2-301.fc29.x86_64 type: libreport Description of problem: I rebooted the system Version-Release number of selected component: selinux-policy-3.14.2-42.fc29.noarch Additional info: reporter: libreport-2.9.6 hashmarkername: setroubleshoot kernel: 4.19.3-300.fc29.x86_64 type: libreport Description of problem: after normal system upgrade Version-Release number of selected component: selinux-policy-3.14.2-42.fc29.noarch Additional info: reporter: libreport-2.9.6 hashmarkername: setroubleshoot kernel: 4.19.5-300.fc29.x86_64 type: libreport Description of problem: Defaulth Version-Release number of selected component: selinux-policy-3.14.2-42.fc29.noarch Additional info: reporter: libreport-2.9.6 hashmarkername: setroubleshoot kernel: 4.19.5-300.fc29.x86_64 type: libreport Happens to me too on every boot.
The proposed solution, to run restorecon on /sys/firmware/efi/efivars, doesn't have any effect. The type stays unchanged: efivarfs_t. What I did to silence the warning was to build and install a module:
> sudo ausearch -m avc -c plymouthd | audit2allow -M my-plymouthd
> sudo semodule -i my-plymouthd.pp
> cat my-plymouthd.te
module my-plymouthd 1.0;
require {
type efivarfs_t;
type plymouthd_t;
class dir getattr;
}
#============= plymouthd_t ==============
allow plymouthd_t efivarfs_t:dir getattr;
commit 1ee051722534b475f7de087a9df4b95a7097acd6 (HEAD -> rawhide)
Author: Lukas Vrabec <lvrabec>
Date: Wed Dec 12 13:13:24 2018 +0100
Add filecontext to /sys/firmware/efi directory efivarfs_t BZ(1648978)
commit f9a2d9e41edb803360694ed505de1fad58cc188c (HEAD -> rawhide)
Author: Lukas Vrabec <lvrabec>
Date: Wed Dec 12 13:17:29 2018 +0100
Add efivarfs_t domain to filesystem_type attribute
Description of problem: Not sure when it started happening exactly, I don't reboot very often. Version-Release number of selected component: selinux-policy-3.14.2-44.fc29.noarch Additional info: reporter: libreport-2.9.7 hashmarkername: setroubleshoot kernel: 4.19.4-300.fc29.x86_64 type: libreport Is this error benign? It's the only problem I see when I look though my logs after trying to shut down and it stalls and I have to do a hard reset every time. *** Bug 1662191 has been marked as a duplicate of this bug. *** *** Bug 1662579 has been marked as a duplicate of this bug. *** (In reply to Vladimir Zhelezov from comment #5) > Happens to me too on every boot. > > The proposed solution, to run restorecon on /sys/firmware/efi/efivars, > doesn't have any effect. The type stays unchanged: efivarfs_t. What I did to > silence the warning was to build and install a module: > It is a ram-disk file system so no point in fixing the labels. Description of problem: appears by itself at logon Version-Release number of selected component: selinux-policy-3.14.2-44.fc29.noarch Additional info: reporter: libreport-2.9.7 hashmarkername: setroubleshoot kernel: 4.20.0-1.fc30.x86_64 type: libreport *** Bug 1662595 has been marked as a duplicate of this bug. *** selinux-policy-3.14.2-46.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2019-6a20cfef61 selinux-policy-3.14.2-46.fc29 has been pushed to the Fedora 29 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-2019-6a20cfef61 *** This bug has been marked as a duplicate of bug 1664143 *** selinux-policy-3.14.2-46.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report. Description of problem: Happens during boot. Version-Release number of selected component: selinux-policy-3.14.2-44.fc29.noarch Additional info: reporter: libreport-2.9.7 hashmarkername: setroubleshoot kernel: 4.19.14-300.fc29.x86_64 type: libreport Sorry, but selinux-policy-3.14.2-46.fc29 doesn't fix this bug. I have it installed and I've just encountered this AVC alert:
type=AVC msg=audit(1547557690.092:2152): avc: denied { getattr } for pid=7693 comm="plymouthd" path="/sys/firmware/efi/efivars" dev="efivarfs" ino=13962 scontext=system_u:system_r:plymouthd_t:s0 tcontext=system_u:object_r:efivarfs_t:s0 tclass=dir permissive=0
type=AVC msg=audit(1547808645.502:878): avc: denied { getattr } for pid=21774 comm="plymouthd" path="/sys/firmware/efi/efivars" dev="efivarfs" ino=205 scontext=system_u:system_r:plymouthd_t:s0 tcontext=system_u:object_r:efivarfs_t:s0 tclass=dir permissive=0
(In reply to Dominik 'Rathann' Mierzejewski from comment #19) > Sorry, but selinux-policy-3.14.2-46.fc29 doesn't fix this bug. I have it > installed and I've just encountered this AVC alert: > > type=AVC msg=audit(1547557690.092:2152): avc: denied { getattr } for > pid=7693 comm="plymouthd" path="/sys/firmware/efi/efivars" dev="efivarfs" > ino=13962 scontext=system_u:system_r:plymouthd_t:s0 > tcontext=system_u:object_r:efivarfs_t:s0 tclass=dir permissive=0 > type=AVC msg=audit(1547808645.502:878): avc: denied { getattr } for > pid=21774 comm="plymouthd" path="/sys/firmware/efi/efivars" dev="efivarfs" > ino=205 scontext=system_u:system_r:plymouthd_t:s0 > tcontext=system_u:object_r:efivarfs_t:s0 tclass=dir permissive=0 These occurred on Tue Jan 15 14:08:10 2019 and Fri Jan 18 11:50:45 2019. Was that before or after the upgrade? date -d @1547557690 Tue 15 Jan 14:08:10 CET 2019 date -d @1547808645 Fri 18 Jan 11:50:45 CET 2019 I updated selinux-policy-3.14.2-46.fc29 (from updates-testing) on 2019-01-14 at 18:50 CET, so both did occur after the upgrade.
$ sudo dnf history list selinux-policy | head -n 3
ID | Command line | Date and time | Action(s) | Altered
-------------------------------------------------------------------------------
1627 | --enablerepo=updates-tes | 2019-01-14 18:50 | E, I, U | 23 E<
$ sudo dnf history info 1627 | grep selinux-policy
Upgrade selinux-policy-3.14.2-46.fc29.noarch @updates-testing
Upgraded selinux-policy-3.14.2-44.fc29.noarch @@System
Upgrade selinux-policy-targeted-3.14.2-46.fc29.noarch @updates-testing
Upgraded selinux-policy-targeted-3.14.2-44.fc29.noarch @@System
I'm not sure if running kernel version has anything do with it, but I was running 4.19.13 and .14 at the time:
$ last reboot | head -n 3
reboot system boot 4.19.15-300.fc29 Fri Jan 18 11:51 still running
reboot system boot 4.19.14-300.fc29 Tue Jan 15 14:10 - 11:50 (2+21:40)
reboot system boot 4.19.13-300.fc29 Fri Jan 4 11:34 - 14:09 (11+02:34)
Meanwhile selinux-policy-3.14.2-47.fc29.noarch is the current version. Hi,
I tried this on my system with the latest selinux-policy build:
# sesearch -A -s plymouthd_t -t efivarfs_t -c dir
allow plymouthd_t efivarfs_t:dir { getattr open search };
# rpm -q selinux-policy
selinux-policy-3.14.2-47.fc29.noarch
#============= plymouthd_t ==============
#!!!! This avc is allowed in the current policy
allow plymouthd_t efivarfs_t:dir getattr;
So, I'm closing this as current release.
|
Description of problem: SELinux is preventing plymouthd from 'getattr' accesses on the diretório /sys/firmware/efi/efivars. ***** Plugin restorecon (99.5 confidence) suggests ************************ If you want to fix the label. /sys/firmware/efi/efivars default label should be sysfs_t. Then you can run restorecon. The access attempt may have been stopped due to insufficient permissions to access a parent directory in which case try to change the following command accordingly. Do # /sbin/restorecon -v /sys/firmware/efi/efivars ***** Plugin catchall (1.49 confidence) suggests ************************** If you believe that plymouthd should be allowed getattr access on the efivars directory by default. Then você deve informar que este é um erro. Você pode gerar um módulo de política local para permitir este acesso. Do allow this access for now by executing: # ausearch -c 'plymouthd' --raw | audit2allow -M my-plymouthd # semodule -X 300 -i my-plymouthd.pp Additional Information: Source Context system_u:system_r:plymouthd_t:s0 Target Context system_u:object_r:efivarfs_t:s0 Target Objects /sys/firmware/efi/efivars [ dir ] Source plymouthd Source Path plymouthd Port <Desconhecido> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.14.2-42.fc29.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.18.16-300.fc29.x86_64 #1 SMP Sat Oct 20 23:24:08 UTC 2018 x86_64 x86_64 Alert Count 1 First Seen 2018-11-12 09:19:00 -02 Last Seen 2018-11-12 09:19:00 -02 Local ID e4374801-2bc9-4a82-ae96-6cb2ab573dd0 Raw Audit Messages type=AVC msg=audit(1542021540.430:504): avc: denied { getattr } for pid=18805 comm="plymouthd" path="/sys/firmware/efi/efivars" dev="efivarfs" ino=86 scontext=system_u:system_r:plymouthd_t:s0 tcontext=system_u:object_r:efivarfs_t:s0 tclass=dir permissive=0 Hash: plymouthd,plymouthd_t,efivarfs_t,dir,getattr Version-Release number of selected component: selinux-policy-3.14.2-42.fc29.noarch Additional info: component: selinux-policy reporter: libreport-2.9.6 hashmarkername: setroubleshoot kernel: 4.18.17-300.fc29.x86_64 type: libreport