GSD-2021-1002623 net: systemport: Add global locking for descriptor lifecycle

Not scored Published

A race condition in the Broadcom SystemPort network driver can lead to system instability or denial of service due to improper descriptor lifecycle locking.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is GSD-2021-1002623?

GSD-2021-1002623 is a vulnerability in Kernel, published on 27 Dec 2021. An attacker can exploit it over the internet without logging in, 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 v4.9.294 by commit de57f62f76450b934de8203711bdc4f7953c3421, it was introduced in version v3.16 by commit 80105befdb4b8cea924711b40b2462b87df65b62. For more details please see the references link.

Which versions are affected by GSD-2021-1002623?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1002623?

No fix has been published for GSD-2021-1002623 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1002623 being exploited?

There is no known exploitation of GSD-2021-1002623 in the wild and no public exploit code.

Sources

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