This update for xen fixes the following issues: Update Xen to version 4.14.4 Transient execution side-channel attacks attacking the Branch History Buffer , named 'Branch Target Injection' and 'Intra-Mode Branch History Injection' are now mitigated. Security issues fixed: - CVE-2022-0001, CVE-2022-0002, CVE-2021-26401: BHB speculation issues . Non-security issues fixed: - Fixed issue around xl and virsh operation - virsh list not giving any output . Special Instructions and Notes: Please reboot the system after installing this update.