GSD-2022-1008320 net: sched: Fix use after free in red_enqueue()

Not scored Published

A use-after-free vulnerability in the Linux kernel's network scheduler allows local attackers to potentially execute code or cause a system crash.

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-2022-1008320?

GSD-2022-1008320 is an use after free 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: sched: Fix use after free in red_enqueue()

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 v4.14.299 by commit a238cdcf2bdc72207c74375fc8be13ee549ca9db, it was introduced in version v4.7 by commit d7f4f332f082c4d4ba53582f902ed6b44fd6f45e. For more details please see the references link.

Which versions are affected by GSD-2022-1008320?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1008320?

No fix has been published for GSD-2022-1008320 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-2022-1008320 being exploited?

There is no known exploitation of GSD-2022-1008320 in the wild and no public exploit code.

Sources

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