Mailing the story:
Canonical Releases New Linux Kernel Security Update for Ubuntu 17.04, 16.04 LTS
Canonical released new Linux kernel security updates for Ubuntu 17.04 (Zesty Zapus) and Ubuntu 16.04 LTS (Xenial Xerus) operating systems, as well as updated HWE (hardware enablement) kernels for Ubuntu 14.04.5 LTS (Trusty Tahr) and the recently released Ubuntu 16.04.3 LTS maintenance update.