GSD-2022-1000612 KVM: x86: Forcibly leave nested virt when SMM state is toggled
A flaw in the Linux Kernel KVM x86 module allows privilege escalation when System Management Mode state is toggled during nested virtualization.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1000612?
GSD-2022-1000612 is a vulnerability in Kernel, published on 27 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: x86: Forcibly leave nested virt when SMM state is toggled
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.16.5 by commit b4c0d89c92e957ecccce12e66b63875d0cc7af7e. For more details please see the references link.
Which versions are affected by GSD-2022-1000612?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000612?
No fix has been published for GSD-2022-1000612 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1000612 being exploited?
There is no known exploitation of GSD-2022-1000612 in the wild and no public exploit code.