STIGQter STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must disable the kernel.core_pattern.

DISA Rule

SV-269182r1050064_rule

Vulnerability Number

V-269182

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

ALMA-09-011680

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure AlmaLinux OS 9 to disable storing core dumps.

Create a numbered *.conf file in /etc/sysctl.d/ with the following content:

kernel.core_pattern = |/bin/false

The system configuration files need to be reloaded for the changes to take effect. To reload the contents of the files, run the following command:

$ sysctl –system

Check Contents

Verify AlmaLinux OS 9 disables storing core dumps with the following commands:

$ sysctl kernel.core_pattern

kernel.core_pattern = |/bin/false

If the returned line does not have a value of "|/bin/false", or a line is not returned and the need for core dumps is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Check that the configuration files are present to disable core dump storage.

$ /usr/lib/systemd/systemd-sysctl --cat-config | egrep -v '^(#|;)' | grep -F kernel.core_pattern | tail -1

kernel.core_pattern = |/bin/false

If "kernel.core_pattern" is not set to "|/bin/false" and is not documented with the ISSO as an operational requirement, or is missing, this is a finding.

Vulnerability Number

V-269182

Documentable

False

Rule Version

ALMA-09-011680

Severity Override Guidance

Verify AlmaLinux OS 9 disables storing core dumps with the following commands:

$ sysctl kernel.core_pattern

kernel.core_pattern = |/bin/false

If the returned line does not have a value of "|/bin/false", or a line is not returned and the need for core dumps is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Check that the configuration files are present to disable core dump storage.

$ /usr/lib/systemd/systemd-sysctl --cat-config | egrep -v '^(#|;)' | grep -F kernel.core_pattern | tail -1

kernel.core_pattern = |/bin/false

If "kernel.core_pattern" is not set to "|/bin/false" and is not documented with the ISSO as an operational requirement, or is missing, this is a finding.

Check Content Reference

M

Target Key

5664