A separate RHEL 8 filesystem must be used for the /tmp directory.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-230295 | RHEL-08-010543 | SV-230295r1017106_rule | CCI-000366 | medium |
| Description | ||||
| The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2025-05-14 | |||
Details
Check Text (C-230295r1017106_chk)
Verify that a separate file system/partition has been created for non-privileged local interactive user home directories.
$ sudo grep /tmp /etc/fstab
/dev/mapper/rhel-tmp /tmp xfs defaults,nodev,nosuid,noexec 0 0
If a separate entry for the file system/partition "/tmp" does not exist, this is a finding.
Fix Text (F-32939r567632_fix)
Migrate the "/tmp" directory onto a separate file system/partition.