Linux is vulnerable to information disclosure. The vulnerability exists due to the system incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.
git://git.launchpad.net/ubuntu-cve-tracker/tree/active/CVE-2021-38198
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7
lists.debian.org/debian-lts-announce/2021/10/msg00010.html
lists.debian.org/debian-lts-announce/2021/12/msg00012.html