GSD-2022-1003455 KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2
A flaw in KVM x86 handling of triple faults from L2 guests could cause a kernel warning and potential denial of service.
- 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-2022-1003455?
GSD-2022-1003455 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2
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 v5.15.45 by commit 8d3a2aa0976f57320ba89baf9d57fb158dd0cd0d, it was introduced in version v5.13 by commit cb6a32c2b8777ad31a02e585584d869251a790e3. For more details please see the references link.
Which versions are affected by GSD-2022-1003455?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003455?
No fix has been published for GSD-2022-1003455 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1003455 being exploited?
There is no known exploitation of GSD-2022-1003455 in the wild and no public exploit code.