K52379673 : Linux kernel vulnerability for CVE-2021-4083

Security Advisory Description

A read-after-free memory flaw was found in the Linux kernel’s garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4. (CVE-2021-4083)

Impact

This flaw allows a local user to cause the system to become unresponsive or to escalate their privileges on the system.