GSD-2022-1008241 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 due to improper NAPI scheduling.
- 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-2022-1008241?
GSD-2022-1008241 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 v4.19.267 by commit 310f0855352ee4b2eb38855c99185c23e6e1496b, it was introduced in version v4.19.267 by commit 223ef6a94e52331a6a7ef31e59921e0e82d2d40a. For more details please see the references link.
Which versions are affected by GSD-2022-1008241?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008241?
No fix has been published for GSD-2022-1008241 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1008241 being exploited?
There is no known exploitation of GSD-2022-1008241 in the wild and no public exploit code.