GSD-2022-1001525 MIPS: pgalloc: fix memory leak caused by pgd_free()

Not scored Published

A memory leak in the MIPS pgd_free function can lead to resource exhaustion and denial of service in the Linux kernel.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Not stated
Victim action needed
Not needed
Fix
None listed

What is GSD-2022-1001525?

GSD-2022-1001525 is a denial of service vulnerability in Kernel, published on 24 Apr 2022.

Official description

MIPS: pgalloc: fix memory leak caused by pgd_free()

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 v5.16.19 by commit 5a8501d34b261906e4c76ec9da679f2cb4d309ed, it was introduced in version v5.9 by commit f9cb654cb550b7b87e8608b14fc3eca432429ffe. For more details please see the references link.

Which versions are affected by GSD-2022-1001525?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1001525?

No fix has been published for GSD-2022-1001525 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is GSD-2022-1001525 being exploited?

There is no known exploitation of GSD-2022-1001525 in the wild and no public exploit code.

Sources

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