GSD-2022-1003275 net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register

Not scored Published

A refcount leak in the Marvell DSA driver can lead to resource exhaustion and denial of service in the Linux kernel.

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-2022-1003275?

GSD-2022-1003275 is a memory corruption vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register

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 v5.15.47 by commit c1df9cb756e5a9ba1841648c44ee5d92306b9c65, it was introduced in version v4.11 by commit a3c53be55c955b7150cda17874c3fcb4eeb97a89. For more details please see the references link.

Which versions are affected by GSD-2022-1003275?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1003275?

No fix has been published for GSD-2022-1003275 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-2022-1003275 being exploited?

There is no known exploitation of GSD-2022-1003275 in the wild and no public exploit code.

Sources

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