Common Controls Hub
All OL 8 files and directories must have a valid group owner.
Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as the GID of the files without a valid group owner.
Oracle Linux 8 Security Technical Implementation Guide
Check Text ( C-52081r779505_chk )
Verify all files and directories on OL 8 have a valid group with the following command:
$ sudo find / -nogroup
If any files on the system do not have an assigned group, this is a finding.
Fix Text (F-52035r779506_fix)
Either remove all files and directories from OL 8 that do not have a valid group, or assign a valid group to all files and directories on the system with the "chgrp" command:
$ sudo chgrp