Oracle Linux: CVE-2022-2588: ELSA-2022-9694: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.
A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local user to crash the system and possibly lead to a local privilege escalation problem.