STIGUI
V-257848CAT II — Medium severitySV-257848r1268251_rule

RHEL 9 must use a separate file system for /var/tmp.

Rule version RHEL-09-231035 · STIG v2 · 2026-09-17

Discussion

The "/var/tmp" partition is used as temporary storage by many programs. Placing "/var/tmp" in its own partition enables the setting of more restrictive mount options, which can help protect programs that use it.

Check

Verify that a separate file system/partition has been created for "/var/tmp" with the following command:

$ mount | grep /var/tmp

/dev/mapper/rhel-tmp on /var/tmp type xfs (rw,nosuid,nodev,noexec,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k) Note: Options displayed for mount may differ.

If a separate entry for "/var/tmp" is not in use, this is a finding.

Fix

Migrate the "/var/tmp" path onto a separate file system.

Identifiers

Group ID
V-257848
Group title
SRG-OS-000480-GPOS-00227
Rule ID
SV-257848r1268251_rule
Check ID
C-61589r1044925_chk
Fix ID
F-61513r925530_fix