A memory leak in the crypto_report() function in crypto/crypto_user_base.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering crypto_report_alg() failures, aka CID-ffdde5932042.
https://usn.ubuntu.com/4287-2/
https://usn.ubuntu.com/4287-1/
https://usn.ubuntu.com/4284-1/
https://usn.ubuntu.com/4258-1/
https://usn.ubuntu.com/4254-2/
https://usn.ubuntu.com/4254-1/
https://security.netapp.com/advisory/ntap-20191205-0001/
https://seclists.org/bugtraq/2020/Jan/10
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
https://github.com/torvalds/linux/commit/ffdde5932042600c6807d46c1550b28b0db6a3bc
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html