The new Ubuntu kernel security updates are available for all supported Ubuntu Linux releases, including Ubuntu 20.04 LTS (Focal Fossa), Ubuntu 18.04 LTS (Bionic Beaver), and Ubuntu 16.04 LTS (Xenial Xerus), and all supported architectures and flavors, including 32-bit, 64-bit, arm, kvm, gcp, gke, aws, oracle, azure, and oem. Affecting all supported Ubuntu releases and kernel flavors, a use-after-free vulnerability (CVE-2020-16119) discovered by Hador Manor in Linux kernel’s DCCP protocol implementation could allow local attacker to cause a denial of service (system crash) or possibly execute arbitrary code.