CVE-2022-23091 Information

Description

A particular case of memory sharing is mishandled in the virtual memory system. This is very similar to SA-21:08.vm but with a different root cause.

An unprivileged local user process can maintain a mapping of a page after it is freed allowing that process to read private data belonging to other processes or the kernel.

Reference

https://security.freebsd.org/advisories/FreeBSD-SA-22:11.vm.asc