STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must prevent kernel profiling by nonprivileged users.

DISA Rule

SV-271746r1198253_rule

Vulnerability Number

V-271746

Group Title

SRG-OS-000132-GPOS-00067

Rule Version

OL09-00-002407

Severity

CAT II

CCI(s)

• CCI-001082 - Separate user functionality, including user interface services, from system management functionality.
• CCI-001090 - Prevent unauthorized and unintended information transfer via shared system resources.

Weight

10

Fix Recommendation

Configure OL 9 to prevent kernel profiling by nonprivileged users.

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

kernel.perf_event_paranoid = 2

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

$ sudo sysctl --system

Check Contents

Verify that OL 9 is configured to prevent kernel profiling by nonprivileged users with the following commands:

Check the status of the kernel.perf_event_paranoid kernel parameter.

$ sysctl kernel.perf_event_paranoid
kernel.perf_event_paranoid = 2

If "kernel.perf_event_paranoid" is not set to "2" or is missing, this is a finding.

Vulnerability Number

V-271746

Documentable

False

Rule Version

OL09-00-002407

Severity Override Guidance

Verify that OL 9 is configured to prevent kernel profiling by nonprivileged users with the following commands:

Check the status of the kernel.perf_event_paranoid kernel parameter.

$ sysctl kernel.perf_event_paranoid
kernel.perf_event_paranoid = 2

If "kernel.perf_event_paranoid" is not set to "2" or is missing, this is a finding.

Check Content Reference

M

Target Key

5680