GSD-2022-1007783 net: tun: call napi_schedule_prep() to ensure we own a napi

Not scored Published

A race condition in the Linux kernel TUN driver could lead to a denial of service by violating NAPI ownership assumptions.

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-2022-1007783?

GSD-2022-1007783 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 v6.0.9 by commit 999550c8cbb3fcb535f542d652fe1cb936839e5f, it was introduced in version v6.0.9 by commit 8b12a020b20a78f62bedc50f26db3bf4fadf8cb9. For more details please see the references link.

Which versions are affected by GSD-2022-1007783?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1007783?

No fix has been published for GSD-2022-1007783 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1007783 being exploited?

There is no known exploitation of GSD-2022-1007783 in the wild and no public exploit code.

Sources

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