GSD-2021-1002637 net: systemport: Add global locking for descriptor lifecycle

Not scored Published

A race condition in the Linux kernel systemport driver can lead to denial of service due to missing global locking for descriptor lifecycle.

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-2021-1002637?

GSD-2021-1002637 is a vulnerability in Kernel, published on 27 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net: systemport: Add global locking for descriptor lifecycle

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 v4.14.259 by commit f3fde37d3f0d429f0fcce214cb52588a9e21260e, it was introduced in version v3.16 by commit 80105befdb4b8cea924711b40b2462b87df65b62. For more details please see the references link.

Which versions are affected by GSD-2021-1002637?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1002637?

No fix has been published for GSD-2021-1002637 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1002637 being exploited?

There is no known exploitation of GSD-2021-1002637 in the wild and no public exploit code.

Sources

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