RHEL 10 must use a separate file system for "/tmp".
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-280938 | RHEL-10-000540 | SV-280938r1184728_rule | CCI-002385 | medium |
| Description | ||||
| The "/tmp" partition is used as temporary storage by many programs. Placing "/tmp" in its own partition enables the setting of more restrictive mount options, which can help protect programs that use it. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 10 Security Technical Implementation Guide | 2026-03-11 | |||
Details
Check Text (C-280938r1184728_chk)
Verify RHEL 10 uses a separate file system/partition for "/tmp" with the following command:
$ mount | grep /tmp
/dev/mapper/luks-2d7e1b45-73c4-4282-8838-15a897e0d04e on /tmp type xfs(rw,nodev,nosuid,noexec,seclabel)
Note: Options displayed for mount may differ.
If a separate entry for "/tmp" is not in use, this is a finding.
Fix Text (F-85404r1165168_fix)
Configure RHEL 10 to use a separate file system for temporary storage directories by migrating the "/tmp" path onto a separate file system.