InformationThe backlog limit has a default setting of 64
During boot if audit=1, then the backlog will hold 64 records. If more than 64 records are created during boot, auditd records will be lost and potential malicious activity could go undetected.
SolutionEdit /etc/default/grub and add audit_backlog_limit=<BACKLOG SIZE> to GRUB_CMDLINE_LINUX:
Run the following command to update the grub2 configuration:
# grub2-mkconfig -o /boot/grub2/grub.cfg