GSD-2022-1003843 fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
A flaw in the Linux kernel's writeback mechanism could lead to denial of service by incorrectly recalculating written pages.
- 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-2022-1003843?
GSD-2022-1003843 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
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
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 v4.19.247 by commit dc8b5902ac540332e64d6d9ede6ca52224d6fef6. For more details please see the references link.
Which versions are affected by GSD-2022-1003843?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003843?
No fix has been published for GSD-2022-1003843 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-2022-1003843 being exploited?
There is no known exploitation of GSD-2022-1003843 in the wild and no public exploit code.