# Google Cloud customers need patches and VM restarts for AMD Turin flaws

_Published Thursday, November 12, 2026 at 8:06 AM EST · Security, Infrastructure · Latest · Tier 2 — Notable_

![Google Cloud customers need patches and VM restarts for AMD Turin flaws — Primary](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikEkIc_eg4_tE5XE6CQrLFl74Gk0QwxcqaGXBnDAlitVIbzreq8faf57QtAqFh8rEn7HgTJzvGUZl2yNBhWVKOKo9KqnJHfduQfoT_HqUTlKhE-FzshzDrpIskiMQ3_Lz2hImNMbt9VdCj0O725_WyZsDXDB91phFceXh6Y_qzHgv1nJPMNjv8a7AU52c/s1700-nu-rw-lo-l85-e365/amd.jpg)

Google says customers using AMD Turin processors on Google Cloud need guest operating system patches and a stop-and-start of their virtual machines to protect against three CPU flaws. Google has applied protections between virtual machines and between virtual machines and the host, but attackers running code on the same processor core may still infer data from other processes or the kernel inside a virtual machine.

The affected series are C4D, N4D, H4D, Z4D and G4, including C4D and Z4D bare-metal instances. Customers must wait for Google's CPU information update and their operating system vendor's fix; rebooting the guest operating system alone is insufficient. Google rates the issue Medium, and neither Google nor AMD reports exploitation.

## Sources

- [The Hacker News](https://thehackernews.com/2026/11/google-cloud-warns-three-amd-turin-cpu.html)

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Canonical: https://techandbusiness.org/newswire/rsRxikStBoTfNkiWpQMxr-
Published: 2026-11-12T13:06:14.489Z
Story chronology: 2026-11-12T12:09:00.000Z
Retrieved: 2026-11-12T15:27:14.420Z
Publisher: Tech & Business (techandbusiness.org)