GSD-2021-1001708 KVM: x86: Handle SRCU initialization failure during page track init

Not scored Published

A null pointer dereference in KVM x86 page track initialization can cause a kernel crash, requiring local privileged access to exploit.

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-2021-1001708?

GSD-2021-1001708 is a vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

KVM: x86: Handle SRCU initialization failure during page track init

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 v5.14.10 by commit 4664318f73e496cd22c71b10888e75434a123e23. For more details please see the references link.

Which versions are affected by GSD-2021-1001708?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001708?

No fix has been published for GSD-2021-1001708 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1001708 being exploited?

There is no known exploitation of GSD-2021-1001708 in the wild and no public exploit code.

Sources

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