GSD-2022-1007408 misc: ocxl: fix possible refcount leak in afu_ioctl()
A refcount leak in the ocxl driver allows local attackers to exhaust kernel resources, potentially causing a 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-2022-1007408?
GSD-2022-1007408 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
misc: ocxl: fix possible refcount leak in afu_ioctl()
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 v5.4.220 by commit fc797285c40a9cc441357abb3521d3e51c743f67, it was introduced in version v5.2 by commit 060146614643ddc5978c73ffac0329762b4651c9. For more details please see the references link.
Which versions are affected by GSD-2022-1007408?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007408?
No fix has been published for GSD-2022-1007408 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-2022-1007408 being exploited?
There is no known exploitation of GSD-2022-1007408 in the wild and no public exploit code.