GSD-2021-1001613 net: macb: fix use after free on rmmod

Not scored Published

A use-after-free vulnerability in the Linux kernel macb network driver allows local attackers with root privileges to cause a system crash or potentially execute code.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2021-1001613?

GSD-2021-1001613 is an use after free vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net: macb: fix use after free on rmmod

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 v5.4.150 by commit 1da750d1e2140ef43d64d17f301ff6f41b45541e. For more details please see the references link.

Which versions are affected by GSD-2021-1001613?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001613?

No fix has been published for GSD-2021-1001613 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is GSD-2021-1001613 being exploited?

There is no known exploitation of GSD-2021-1001613 in the wild and no public exploit code.

Sources

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