GSD-2022-1005961 um: add "noreboot" command line option for PANIC_TIMEOUT=-1 setups
A missing noreboot option in the Linux kernel UML subsystem could cause indefinite hangs during panics with specific timeout settings, requiring a patch.
- 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-2022-1005961?
GSD-2022-1005961 is a denial of service vulnerability in Kernel, published on 17 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
um: add "noreboot" command line option for PANIC_TIMEOUT=-1 setups
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 v5.4.211 by commit 082da6a9c30fe0a00458ed36c28b603c86d516cb. For more details please see the references link.
Which versions are affected by GSD-2022-1005961?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005961?
No fix has been published for GSD-2022-1005961 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-2022-1005961 being exploited?
There is no known exploitation of GSD-2022-1005961 in the wild and no public exploit code.