GSD-2022-1001542 libbpf: Fix memleak in libbpf_netlink_recv()

Not scored Published

A memory leak in libbpf_netlink_recv can lead to resource exhaustion and denial of service, requiring a kernel patch.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2022-1001542?

GSD-2022-1001542 is a memory corruption vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

libbpf: Fix memleak in libbpf_netlink_recv()

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 v5.16.19 by commit 7cedd22f1a8db371b0937bad0ec1c3020d8ebf51, it was introduced in version v5.16.19 by commit 723644ebfdb2ef7dccdaf4f1b05be9186fdba6b1. For more details please see the references link.

Which versions are affected by GSD-2022-1001542?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1001542?

No fix has been published for GSD-2022-1001542 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is GSD-2022-1001542 being exploited?

There is no known exploitation of GSD-2022-1001542 in the wild and no public exploit code.

Sources

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