GSD-2022-1006387 vfio/type1: Unpin zero pages
A flaw in the Linux kernel VFIO driver fails to unpin zero pages, potentially leading to resource exhaustion and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1006387?
GSD-2022-1006387 is a denial of service vulnerability in Kernel, published on 2 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
vfio/type1: Unpin zero pages
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 v5.15.68 by commit 5321908ef74fb593e0dbc8737d25038fc86c9986. For more details please see the references link.
Which versions are affected by GSD-2022-1006387?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006387?
No fix has been published for GSD-2022-1006387 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-2022-1006387 being exploited?
There is no known exploitation of GSD-2022-1006387 in the wild and no public exploit code.