SLEM 5 kernel core dumps must be disabled unless needed.

Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in denial of service (DoS) by exhausting the available space on the target file system partition.

Verify that SLEM 5 kernel core dumps are disabled unless needed with the following command:

     > systemctl status kdump.service
     kdump.service - Load kdump kernel and initrd
          Loaded: loaded (/usr/lib/systemd/system/kdump.service; disabled; vendor preset: disabled)
          Active: inactive (dead)

If "kdump.service" is active, ask the system administrator if the use of the service is required and documented with the information system security officer (ISSO).

If the service is active and is not documented, this is a finding.

If SLEM 5 kernel core dumps are not required, disable the "kdump" service with the following command:

     > sudo systemctl disable kdump.service

If kernel core dumps are required, document the need with the ISSO.