GSD-2022-1000247 KVM: LAPIC: Also cancel preemption timer during SET_LAPIC
A missing timer cancellation in KVM LAPIC handling can lead to denial of service, requiring kernel patching for virtualization hosts.
- 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-2022-1000247?
GSD-2022-1000247 is a denial of service vulnerability in Kernel, published on 18 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: LAPIC: Also cancel preemption timer during SET_LAPIC
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 v5.15.19 by commit 54b3439c8e70e0bcfea59aeef9dd98908cbbf655. For more details please see the references link.
Which versions are affected by GSD-2022-1000247?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000247?
No fix has been published for GSD-2022-1000247 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-2022-1000247 being exploited?
There is no known exploitation of GSD-2022-1000247 in the wild and no public exploit code.