Bug 2103487
| Summary: | SELinux is preventing install from using the 'fsetid' capabilities. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Tony <tony> |
| 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: | 36 | CC: | dwalsh, grepl.miroslav, lvrabec, mmalik, omosnace, pkoncity, vmojzis, zpytela |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:5b4a38bbd0f2e490d22b3cccb07fcbf3082fc823ae9001fd830f7543671f9da9;VARIANT_ID=workstation; | ||
| Fixed In Version: | selinux-policy-36.14-1.fc36 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-08-20 01:44:36 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: | |||
Tony, Do you know when this denial appears and if it is the /bin/install command which is executed? Unforrtunately, the report details don't sepcify the full path: Source install Source Path install I'm not sure how I can determine from where the command is being invoked but will try your suggestions if you have any. Full auditing can be enabled following these steps: 1) Open the /etc/audit/rules.d/audit.rules file in an editor. 2) Remove the following line if it exists: -a task,never 3) Add the following line to the end of the file: -w /etc/shadow -p w 4) Restart the audit daemon: # service auditd restart 5) Re-run your scenario. 6) Collect AVC denials: # ausearch -i -m avc,user_avc,selinux_err,user_selinux_err -ts today It will display additional information, but not necessary the command path. So do you know at which moment or action the denial appears? Is it a result of some configuration change? This happens at boot time, just after openvswitch is started:
Aug 06 13:30:10 fedora chown[1407]: /usr/bin/chown: cannot access '/run/openvswitch': No such file or directory
Aug 06 13:30:10 fedora audit[1458]: AVC avc: denied { fsetid } for pid=1458 comm="install" capability=4 scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:system_r:openvswitch_t:s0 tclass=capability permissive=0
Aug 06 13:30:10 fedora audit[1458]: AVC avc: denied { fsetid } for pid=1458 comm="install" capability=4 scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:system_r:openvswitch_t:s0 tclass=capability permissive=0
Aug 06 13:30:10 fedora ovs-vsctl[1467]: ovs|00001|vsctl|INFO|Called as ovs-vsctl --no-wait set Open_vSwitch . ovs-version=2.17.0 "external-ids:system-id=\"4fb11813-ac13-44f3-84eb-aac88ba8507c\"" "external-ids:rundir=\"/var/run/openvswitch\"" "system-type=\"fedora\"" "system-version=\"36\""
Aug 06 13:30:10 fedora audit[1527]: AVC avc: denied { search } for pid=1527 comm="modprobe" name="events" dev="tracefs" ino=60 scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:object_r:tracefs_t:s0 tclass=dir permissive=0
Aug 06 13:30:10 fedora audit[1527]: AVC avc: denied { search } for pid=1527 comm="modprobe" name="events" dev="tracefs" ino=60 scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:object_r:tracefs_t:s0 tclass=dir permissive=0
Aug 06 13:30:10 fedora kernel: Failed to create system directory openvswitch
Aug 06 13:30:10 fedora kernel: Failed to create system directory openvswitch
Aug 06 13:30:10 fedora ovs-ctl[1520]: Inserting openvswitch module [ OK ]
Aug 06 13:30:10 fedora kernel: openvswitch: Open vSwitch switching datapath
Aug 06 13:30:11 fedora systemd[1]: Starting openvswitch.service - Open vSwitch...
Aug 06 13:30:11 fedora systemd[1]: Finished openvswitch.service - Open vSwitch.
Aug 06 13:30:11 fedora audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=openvswitch comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 06 13:30:13 fedora setroubleshoot[1609]: SELinux is preventing install from using the fsetid capability. For complete SELinux messages run: sealert -l 30194936-b2dd-4013-bd06-a546143a43e7
Aug 06 13:30:13 fedora setroubleshoot[1609]: SELinux is preventing install from using the fsetid capability.
Aug 06 13:30:13 fedora setroubleshoot[1609]: SELinux is preventing install from using the fsetid capability. For complete SELinux messages run: sealert -l 30194936-b2dd-4013-bd06-a546143a43e7
Aug 06 13:30:13 fedora setroubleshoot[1609]: SELinux is preventing install from using the fsetid capability.
[tony@chainsaw ~]$
*** Bug 2103490 has been marked as a duplicate of this bug. *** FEDORA-2022-70c63dd1e2 has been submitted as an update to Fedora 36. https://bodhi.fedoraproject.org/updates/FEDORA-2022-70c63dd1e2 FEDORA-2022-70c63dd1e2 has been pushed to the Fedora 36 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2022-70c63dd1e2` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2022-70c63dd1e2 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2022-70c63dd1e2 has been pushed to the Fedora 36 stable repository. If problem still persists, please make note of it in this bug report. |
Description of problem: SELinux is preventing install from using the 'fsetid' capabilities. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that install should have the fsetid 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 'install' --raw | audit2allow -M my-install # semodule -X 300 -i my-install.pp Additional Information: Source Context system_u:system_r:openvswitch_t:s0 Target Context system_u:system_r:openvswitch_t:s0 Target Objects Unknown [ capability ] Source install Source Path install Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-36.10-1.fc36.noarch Local Policy RPM selinux-policy-targeted-36.10-1.fc36.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 5.18.7-200.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Sat Jun 25 20:06:14 UTC 2022 x86_64 x86_64 Alert Count 12 First Seen 2022-06-21 16:51:02 EDT Last Seen 2022-07-03 11:38:53 EDT Local ID 224cd040-3844-47cd-9d91-34cd13382656 Raw Audit Messages type=AVC msg=audit(1656862733.779:216): avc: denied { fsetid } for pid=1360 comm="install" capability=4 scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:system_r:openvswitch_t:s0 tclass=capability permissive=0 Hash: install,openvswitch_t,openvswitch_t,capability,fsetid Version-Release number of selected component: selinux-policy-targeted-36.10-1.fc36.noarch Additional info: component: selinux-policy reporter: libreport-2.17.1 hashmarkername: setroubleshoot kernel: 5.18.7-200.fc36.x86_64 type: libreport Potential duplicate: bug 1956109