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

OL 8 must restrict exposed kernel pointer addresses access.

DISA Rule

SV-248891r1156648_rule

Vulnerability Number

V-248891

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL08-00-040283

Severity

CAT II

CCI(s)

CCI-000366 - Implement the security configuration settings.

Weight

Fix Recommendation

Configure OL 8 to prevent the leak of kernel pointers to nonprivileged users.

Add or edit the following line in /etc/sysctl.d/99-sysctl.conf system configuration file:

kernel.kptr_restrict = 1

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

$ sudo sysctl --system

Check Contents

Verify OL 8 restricts access to exposed kernel pointers with the following command:

$ sysctl kernel.kptr_restrict
kernel.kptr_restrict = 1

Vulnerability Number

V-248891

Documentable

False

Rule Version

OL08-00-040283

Severity Override Guidance

Verify OL 8 restricts access to exposed kernel pointers with the following command:

$ sysctl kernel.kptr_restrict
kernel.kptr_restrict = 1

Check Content Reference

Target Key

5416