GSD-2022-1004833 ext4: add reserved GDT blocks check
Missing check for reserved GDT blocks in ext4 filesystem can lead to denial of service, requiring kernel patching.
- 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-2022-1004833?
GSD-2022-1004833 is a denial of service vulnerability in Kernel, published on 31 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ext4: add reserved GDT blocks check
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 v4.19.249 by commit b9747263b13e5290ac4d63bec47e38f701303cad. For more details please see the references link.
Which versions are affected by GSD-2022-1004833?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1004833?
No fix has been published for GSD-2022-1004833 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-2022-1004833 being exploited?
There is no known exploitation of GSD-2022-1004833 in the wild and no public exploit code.