GSD-2022-1008166 net: tun: call napi_schedule_prep() to ensure we own a napi
A race condition in the Linux kernel TUN driver could lead to a denial of service by failing to properly check NAPI ownership.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1008166?
GSD-2022-1008166 is a vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: tun: call napi_schedule_prep() to ensure we own a napi
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 v5.4.225 by commit 30b0263d0366ea63aa7cad0407dfd945cc348580, it was introduced in version v5.4.225 by commit a4f73f6adc53fd7a3f9771cbc89a03ef39b0b755. For more details please see the references link.
Which versions are affected by GSD-2022-1008166?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008166?
No fix has been published for GSD-2022-1008166 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1008166 being exploited?
There is no known exploitation of GSD-2022-1008166 in the wild and no public exploit code.