STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

OL 8 must prevent the loading of a new kernel for later execution.

DISA Rule

SV-248576r1156619_rule

Vulnerability Number

V-248576

Group Title

SRG-OS-000366-GPOS-00153

Rule Version

OL08-00-010372

Severity

CAT II

CCI(s)

CCI-003992 - Prevent the installation of organization-defined software and firmware components without verification that the component has been digitally signed using a certificate that is recognized and approved by the organization.

Weight

Fix Recommendation

Configure OL 8 to prevent the loading of a new kernel for later execution.

Add or edit the following line in a system configuration file in the "/etc/sysctl.d/" directory:

kernel.kexec_load_disabled = 1

Load settings from all system configuration files with the following command:

$ sudo sysctl --system

Check Contents

Note: For OL 8 systems using the Oracle Unbreakable Enterprise Kernel (UEK) Release 6 or above and with secureboot enabled, this requirement is Not Applicable.

Verify OL 8 is configured to disable kernel image loading.

Check the status of the kernel.kexec_load_disabled kernel parameter with the following command:

$ sysctl kernel.kexec_load_disabled
kernel.kexec_load_disabled = 1

If "kernel.kexec_load_disabled" is not set to "1" or is missing, this is a finding.

Vulnerability Number

V-248576

Documentable

False

Rule Version

OL08-00-010372

Severity Override Guidance

Check Content Reference

Target Key

5416