A memory leak in the crypto_reportstat() function in crypto/crypto_user_stat.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering crypto_reportstat_alg() failures, aka CID-c03b04dcdba1.
https://usn.ubuntu.com/4284-1/
https://usn.ubuntu.com/4258-1/
https://security.netapp.com/advisory/ntap-20191205-0001/
https://github.com/torvalds/linux/commit/c03b04dcdba1da39903e23cc4d072abf8f68f2dd
http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html