A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system.
Red Hat Security Advisory 2023-1659-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.