Livepatch Security Notices

Livepatch security notices

The Livepatch Security Notices (LSN) are notifications issued for kernel vulnerabilities. They can be accessed by following our Security notices or by subscribing to the Ubuntu Security Announcements mailing list. LSNs are released for every high or critical kernel vulnerability. They are released for:

  • Announcing a new livepatch addressing a vulnerability.
  • Communicating an alert if a livepatch cannot be released describing the reason and possible mitigation. In that case
    • a standard Ubuntu security notice (USN) will be released with packages along side it to fix the issue.
    • the livepatch client will issue a warning that an update and reboot is necessary.