GSD-2021-1000870 wq: handle VM suspension in stall detection

Not scored Published

A flaw in Linux kernel workqueue stall detection could cause denial of service during VM suspension, requiring a kernel patch.

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

What is GSD-2021-1000870?

GSD-2021-1000870 is a denial of service vulnerability in Kernel, published on 30 Jun 2021.

Official description

wq: handle VM suspension in stall detection

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 v4.19.195 by commit 50316635e644a0b9e62d3263fb4e8be2104605b6. For more details please see the references link.

Which versions are affected by GSD-2021-1000870?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1000870?

No fix has been published for GSD-2021-1000870 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-2021-1000870 being exploited?

There is no known exploitation of GSD-2021-1000870 in the wild and no public exploit code.

Sources

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