GSD-2022-1006770 x86/apic: Don't disable x2APIC if locked
A flaw in the Linux kernel x86 APIC handling could allow local attackers to cause a denial of service by disabling x2APIC when locked.
- 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-2022-1006770?
GSD-2022-1006770 is a denial of service vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
x86/apic: Don't disable x2APIC if locked
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 v6.0.3 by commit dd1241e00addbf0b95f6cd6ce32152692820657e. For more details please see the references link.
Which versions are affected by GSD-2022-1006770?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006770?
No fix has been published for GSD-2022-1006770 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-2022-1006770 being exploited?
There is no known exploitation of GSD-2022-1006770 in the wild and no public exploit code.