GSD-2023-1002194 s390/cpum_sf: add READ_ONCE() semantics to compare and swap loops

Not scored Published

A race condition in the s390 CPU measurement facility driver requires READ_ONCE semantics to prevent potential data inconsistencies during compare and swap loops.

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-2023-1002194?

GSD-2023-1002194 is a vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

s390/cpum_sf: add READ_ONCE() semantics to compare and swap loops

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 v5.10.164 by commit bddb355267849423306cc9dc313783303dd19f03. For more details please see the references link.

Which versions are affected by GSD-2023-1002194?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1002194?

No fix has been published for GSD-2023-1002194 yet. Limit exposure of the affected software until one is available.

Is GSD-2023-1002194 being exploited?

There is no known exploitation of GSD-2023-1002194 in the wild and no public exploit code.

Sources

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