GSD-2022-1003418 printk: wake waiters for safe and NMI contexts
A bug in the Linux kernel's printk subsystem could cause waiters to hang in safe and NMI contexts, potentially leading to a denial of service.
- 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-2022-1003418?
GSD-2022-1003418 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
printk: wake waiters for safe and NMI contexts
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 v5.15.46 by commit 5c7957948c58b1c1528f8821993153fb01c3bbae, it was introduced in version v4.19 by commit 03fc7f9c99c1e7ae2925d459e8487f1a6f199f79. For more details please see the references link.
Which versions are affected by GSD-2022-1003418?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003418?
No fix has been published for GSD-2022-1003418 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-2022-1003418 being exploited?
There is no known exploitation of GSD-2022-1003418 in the wild and no public exploit code.