GSD-2021-1000326 sched: Fix out-of-bound access in uclamp

Not scored Published

An out-of-bound access in the Linux kernel scheduler allows local attackers to potentially execute code or escalate privileges.

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-2021-1000326?

GSD-2021-1000326 is a memory corruption vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

sched: Fix out-of-bound access in uclamp

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 v5.10.38 by commit f7347c85490b92dd144fa1fba9e1eca501656ab3, it was introduced in version v5.3 by commit 69842cba9ace84849bb9b8edcdf2cefccd97901c. For more details please see the references link.

Which versions are affected by GSD-2021-1000326?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1000326?

No fix has been published for GSD-2021-1000326 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is GSD-2021-1000326 being exploited?

There is no known exploitation of GSD-2021-1000326 in the wild and no public exploit code.

Sources

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