An authentication bypass flaw was found in the Linux kernel’s IMA policy when a user performs lockdown. This flaw allows a local user to crash or potentially escalate their privileges on the system.
bugzilla.redhat.com/show_bug.cgi?id=2106830
nvd.nist.gov/vuln/detail/CVE-2022-21505
www.cve.org/CVERecord?id=CVE-2022-21505