CVE-2023-1281

A use-after-free vulnerability was found in the traffic control index filter (tcindex) in the Linux kernel. The imperfect hash area can be updated while packets are traversing. This issue could allow a local attacker to cause a use-after-free problem, leading to privilege escalation.

Mitigation

This flaw can be mitigated by preventing the affected traffic control index filter (cls_tcindex) kernel module from loading during the boot time, ensure the module is added into the blacklist file.

Refer:    
How do I blacklist a kernel module to prevent it from loading automatically?   
https://access.redhat.com/solutions/41278