GSD-2022-1003812 zsmalloc: fix races between asynchronous zspage free and page migration

Not scored Published

A race condition in the Linux kernel zsmalloc subsystem can lead to memory corruption, potentially causing denial of service or privilege escalation.

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-2022-1003812?

GSD-2022-1003812 is a 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

zsmalloc: fix races between asynchronous zspage free and page migration

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 v5.4.197 by commit fc658c083904427abbf8f18280d517ee2668677c, it was introduced in version v4.14 by commit 77ff465799c60294e248000cd22ae8171da3304c. For more details please see the references link.

Which versions are affected by GSD-2022-1003812?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1003812?

No fix has been published for GSD-2022-1003812 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1003812 being exploited?

There is no known exploitation of GSD-2022-1003812 in the wild and no public exploit code.

Sources

Is GSD-2022-1003812 in your software?

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