AlmaLinux OS 9 must take appropriate action when the internal event queue is full.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-269511	SRG-OS-000479-GPOS-00224	ALMA-09-052380	SV-269511r1050394_rule	2025-02-20	1

Description
The audit system should have an action setup in the event the internal event queue becomes full so that no data is lost.

ℹ️ Check
Verify that AlmaLinux OS 9 audit system is configured to take an appropriate action when the internal event queue is full: $ grep -i overflow_action /etc/audit/auditd.conf overflow_action = SYSLOG If the value of the "overflow_action" option is not set to "SYSLOG", "SINGLE", "HALT" or the line is commented out, ask the system administrator (SA) to indicate how the audit logs are offloaded to a different system or media. If there is no evidence that the transfer of the audit logs being offloaded to another system or media takes appropriate action if the internal event queue becomes full, this is a finding.

ℹ️ Check

Verify that AlmaLinux OS 9 audit system is configured to take an appropriate action when the internal event queue is full: $ grep -i overflow_action /etc/audit/auditd.conf overflow_action = SYSLOG If the value of the "overflow_action" option is not set to "SYSLOG", "SINGLE", "HALT" or the line is commented out, ask the system administrator (SA) to indicate how the audit logs are offloaded to a different system or media. If there is no evidence that the transfer of the audit logs being offloaded to another system or media takes appropriate action if the internal event queue becomes full, this is a finding.

✔️ Fix
Edit the /etc/audit/auditd.conf file and add or update the "overflow_action" option: overflow_action = SYSLOG The audit daemon must be restarted for changes to take effect.