GSD-2022-1001992 NFSv4.2: fix reference count leaks in _nfs42_proc_copy_notify()
A reference count leak in the Linux Kernel NFSv4.2 copy notify procedure can lead 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-2022-1001992?
GSD-2022-1001992 is a denial of service vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NFSv4.2: fix reference count leaks in _nfs42_proc_copy_notify()
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 v5.10.111 by commit 9b9feec97c1fc7dd9bb69f62c4905cddf1801599. For more details please see the references link.
Which versions are affected by GSD-2022-1001992?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001992?
No fix has been published for GSD-2022-1001992 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-2022-1001992 being exploited?
There is no known exploitation of GSD-2022-1001992 in the wild and no public exploit code.