Bug 1955880

Summary: SELinux is preventing modprobe from 'confidentiality' accesses on the lockdown Sconosciuto.
Product: [Fedora] Fedora Reporter: Davide Repetto <red>
Component: selinux-policyAssignee: Zdenek Pytela <zpytela>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 34CC: b.gatessucks, dwalsh, grepl.miroslav, lvrabec, mmalik, omosnace, plautrba, vmojzis, zpytela
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:f7cf424ac72944e86b72e397879ac3afbb70d292dd4fbd3b6e7a3fa6ebc48382;VARIANT_ID=matecompiz;
Fixed In Version: selinux-policy-targeted-34.4-1.fc34.noarch Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-05-03 11:03:55 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Davide Repetto 2021-05-01 08:47:32 UTC
Description of problem:
SELinux is preventing modprobe from 'confidentiality' accesses on the lockdown Sconosciuto.

*****  Plugin catchall (100. confidence) suggests   **************************

Se ci credi modprobe dovrebbe essere consentito confidentiality accesso al Sconosciuto lockdown per impostazione predefinita.
Then si dovrebbe riportare il problema come bug.
E' possibile generare un modulo di politica locale per consentire questo accesso.
Do
consentire questo accesso per ora eseguendo:
# ausearch -c 'modprobe' --raw | audit2allow -M my-$MODULE_NOME
# semodule -X 300 -i miei-modprobe.pp

Additional Information:
Source Context                system_u:system_r:unconfined_service_t:s0
Target Context                system_u:system_r:unconfined_service_t:s0
Target Objects                Sconosciuto [ lockdown ]
Source                        modprobe
Source Path                   modprobe
Port                          <Sconosciuto>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-34.3-1.fc34.noarch
Local Policy RPM              selinux-policy-targeted-34.3-1.fc34.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.11.16-300.fc34.x86_64 #1 SMP Wed
                              Apr 21 13:18:33 UTC 2021 x86_64 x86_64
Alert Count                   550
First Seen                    2021-05-01 10:42:31 CEST
Last Seen                     2021-05-01 10:42:31 CEST
Local ID                      9790b3b3-20a8-47cf-af12-a782631940ca

Raw Audit Messages
type=AVC msg=audit(1619858551.397:2089): avc:  denied  { confidentiality } for  pid=549301 comm="modprobe" lockdown_reason="use of tracefs" scontext=system_u:system_r:unconfined_service_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=lockdown permissive=0


Hash: modprobe,unconfined_service_t,unconfined_service_t,lockdown,confidentiality

Version-Release number of selected component:
selinux-policy-targeted-34.3-1.fc34.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.14.0
hashmarkername: setroubleshoot
kernel:         5.11.16-300.fc34.x86_64
type:           libreport

Comment 1 b.gatessucks 2021-05-03 08:54:21 UTC
Similar problem has been detected:

Alert appearing at  login following update from Fedora 33 -> 34 following the docs 
(https://docs.fedoraproject.org/en-US/quick-docs/dnf-system-upgrade/).
In particular, issued `sudo fixfiles -B onboot`.

hashmarkername: setroubleshoot
kernel:         5.11.16-300.fc34.x86_64
reason:         SELinux is preventing modprobe from 'confidentiality' accesses on the lockdown labeled unconfined_service_t.
type:           libreport