Google Cloud: AMD Turin side-channel bugs affect C4D, N4D, H4D, Z4D and G4 VMs; patch the guest, then stop and start (a reboot isn't enough)
- Do now: install guest OS fixes as vendors ship them, then stop/start (not reboot) affected VMs. Bare-metal and nested-virtualization users apply their own hypervisor/OS vendor fixes.
- GKE: new node images for Turin bare metal are coming; upgrading nodes picks up the CPU info change. Cloud Run needs no action.
- Other clouds and on-prem Turin hosts: check AMD-SB-7073 and your hypervisor vendor.
Sources: Google Cloud security bulletin GCP-2026-081 (Nov 10, 2026)