GSD-2022-1003074 PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()

Not scored Published

A refcount leak in the MediaTek PCI 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-2022-1003074?

GSD-2022-1003074 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

PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()

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 v5.17.14 by commit 4cef4237d6c37257cb6ddc397723e9c0dded0efe, it was introduced in version v5.15 by commit 87e8657ba99cac87b84c7f8ead91b44d88345504. For more details please see the references link.

Which versions are affected by GSD-2022-1003074?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1003074?

No fix has been published for GSD-2022-1003074 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-2022-1003074 being exploited?

There is no known exploitation of GSD-2022-1003074 in the wild and no public exploit code.

Sources

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