A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.
https://access.redhat.com/security/cve/CVE-2021-3764
https://bugzilla.redhat.com/show_bug.cgi?id=1997467
https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680