GSD-2022-1003721 net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register
A refcount leak in the Marvell DSA driver can lead to resource exhaustion and denial of service, requiring a kernel patch.
- 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-2022-1003721?
GSD-2022-1003721 is a denial of service 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 v5.4.198 by commit a101793994c0a14c70bb4e44c7fda597eeebba0a, it was introduced in version v4.11 by commit a3c53be55c955b7150cda17874c3fcb4eeb97a89. For more details please see the references link.
Which versions are affected by GSD-2022-1003721?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003721?
No fix has been published for GSD-2022-1003721 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-2022-1003721 being exploited?
There is no known exploitation of GSD-2022-1003721 in the wild and no public exploit code.