This update for xen fixes the following issues: - CVE-2022-23033: Fixed guest_physmap_remove_page not removing the p2m mappings. - CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. - CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. Special Instructions and Notes: Please reboot the system after installing this update.