GSD-2021-1000840 wq: handle VM suspension in stall detection
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 needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000840?
GSD-2021-1000840 is a denial of service vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
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 v4.9.273 by commit a8f2c7bbbdf433d726a3f1ac81379da9e09b11e7. For more details please see the references link.
Which versions are affected by GSD-2021-1000840?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000840?
No fix has been published for GSD-2021-1000840 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-2021-1000840 being exploited?
There is no known exploitation of GSD-2021-1000840 in the wild and no public exploit code.