GSD-2021-1001597 hwmon: (mlxreg-fan) Return non-zero value when fan current state is enforced from sysfs

Not scored Published

A bug in the mlxreg-fan driver fails to return an error when fan state is enforced via sysfs, potentially misleading local administrators.

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-2021-1001597?

GSD-2021-1001597 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

hwmon: (mlxreg-fan) Return non-zero value when fan current state is enforced from sysfs

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 v5.4.151 by commit a6c42ae1530f94724d3c42cf91fe3d3c5e394f8a, it was introduced in version v4.19 by commit 65afb4c8e7e4e7e74b28efa1df62da503ca3e7a6. For more details please see the references link.

Which versions are affected by GSD-2021-1001597?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001597?

No fix has been published for GSD-2021-1001597 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1001597 being exploited?

There is no known exploitation of GSD-2021-1001597 in the wild and no public exploit code.

Sources

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