Bug 1451358

Summary: scap reports device files with device_t context as violating a rule
Product: Red Hat Enterprise Linux 7 Reporter: Zdenek Pytela <zpytela>
Component: selinux-policyAssignee: Lukas Vrabec <lvrabec>
Status: CLOSED ERRATA QA Contact: Milos Malik <mmalik>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.3CC: cww, lvrabec, mgrepl, mmalik, plautrba, pvrabec, ssekidde
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Linux   
Whiteboard:
Fixed In Version: selinux-policy-3.13.1-174.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-04-10 12:29:42 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: 1420851    

Description Zdenek Pytela 2017-05-16 13:35:13 UTC 
Description of problem:
scap tests report device files with device_t SELinux context as violating the following rule:
Ensure No Device Files are Unlabeled by SELinux

Version-Release number of selected component (if applicable):
selinux-policy-3.13.1-102.el7_3.16.noarch

How reproducible:


Steps to Reproduce:
1. Run scap on latest RHEL 7

Actual results:
These files are reported with device_t context:
/dev/vsock
/dev/vmci
/dev/char/10:57
/dev/char/10:58

Expected results:
No files reported.

Additional info:
  # matchpathcon /dev/vmci /dev/vsock /dev/char/10:5[78]
/dev/vmci       system_u:object_r:device_t:s0
/dev/vsock      system_u:object_r:device_t:s0
/dev/char/10:57 system_u:object_r:device_t:s0
/dev/char/10:58 system_u:object_r:device_t:s0

These files: /dev/char/10:5[78]
are symlinks which are not displayed by the helper find command in 
http://static.open-scap.org/ssg-guides/ssg-rhel7-guide-stig-rhel7-server-upstream.html#xccdf_org.ssgproject.content_rule_selinux_all_devicefiles_labeled

The wording changed in a different document revision: Ensure No Device Files are Unknown to SELinux
Comment 4 Milos Malik 2017-10-24 13:55:51 UTC 
Scap tests should skip symbolic links in /dev/char directory, because they are always labeled device_t.
Comment 8 errata-xmlrpc 2018-04-10 12:29:42 UTC 
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-2018:0763