GSD-2022-1004272 KVM: arm64: Prevent kmemleak from accessing pKVM memory

Not scored Published

A flaw in Linux Kernel KVM allows privileged attackers to access protected pKVM memory via kmemleak, potentially disclosing sensitive data.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2022-1004272?

GSD-2022-1004272 is a vulnerability in Kernel, published on 31 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

KVM: arm64: Prevent kmemleak from accessing pKVM memory

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 v5.18.8 by commit a6b22d1143931f0036932cdaa8a5eb34cb3b12c8, it was introduced in version v5.15 by commit a7259df7670240ee03b0cfce8a3e5d3773911e24. For more details please see the references link.

Which versions are affected by GSD-2022-1004272?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1004272?

No fix has been published for GSD-2022-1004272 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1004272 being exploited?

There is no known exploitation of GSD-2022-1004272 in the wild and no public exploit code.

Sources

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