GSD-2022-1002622 amt: fix possible memory leak in amt_rcv()

Not scored Published

A memory leak in the Linux kernel's Automatic Multicast Tunneling module can lead to resource exhaustion and denial of service.

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-2022-1002622?

GSD-2022-1002622 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

amt: fix possible memory leak in amt_rcv()

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 v5.18.4 by commit 4b8032d39b276c52db57ff834c300405b9da2691, it was introduced in version v5.16 by commit cbc21dc1cfe949e37b2a54c71511579f1899e8d4. For more details please see the references link.

Which versions are affected by GSD-2022-1002622?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1002622?

No fix has been published for GSD-2022-1002622 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is GSD-2022-1002622 being exploited?

There is no known exploitation of GSD-2022-1002622 in the wild and no public exploit code.

Sources

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