Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide

The Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide (V1 R8) has 439 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V1 · R8

CurrentPublished Wed Sep 30 2026

AlmaLinux OS 9 must mount /boot with the nodev option.

Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide

Assessment Title

Rule Text

AlmaLinux OS 9 must mount /boot with the nodev option.

Description

Discussion Text

The only legitimate location for device files is the "/dev" directory located on the root partition. The only exception to this is chroot jails.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-269312

Rule

SV-269312r1050194_rule

Severity

medium

Rule Version

ALMA-09-026310

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify that the "/boot" mount point has the "nodev" option is with the following command:

$ mount | grep '\s/boot\s'

/dev/sda2 on /boot type xfs (rw,nosuid,nodev,noexec,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)

If the "/boot" file system does not have the "nodev" option set, this is a finding.

Implementation Procedure

Fix Text

Modify "/etc/fstab" to use the "nodev" option on the "/boot" directory.

STIG check 203 of 439 in the Cloud Linux AlmaLinux OS 9 STIG checklist

← Previous · V-269311AlmaLinux OS 9 must prevent files with the setuid and setgid bit set from being executed on the /boot/efi directory.Next · V-269313 →AlmaLinux OS 9 must prevent files with the setuid and setgid bit set from being executed on the /boot directory.