GSD-2022-1007826 cxl/region: Fix cxl_region leak, cleanup targets at region delete

Not scored Published

A memory leak in the Linux kernel CXL region driver allows local attackers to cause denial of service by exhausting memory.

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-2022-1007826?

GSD-2022-1007826 is a memory corruption vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

cxl/region: Fix cxl_region leak, cleanup targets at region delete

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 v6.0.8 by commit 45d9fb4b758b9d602ee7776eb6754b0349946aad, it was introduced in version v6.0 by commit b9686e8c8e39d4072081ef078c04915ee51c8af4. For more details please see the references link.

Which versions are affected by GSD-2022-1007826?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1007826?

No fix has been published for GSD-2022-1007826 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-2022-1007826 being exploited?

There is no known exploitation of GSD-2022-1007826 in the wild and no public exploit code.

Sources

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