GSD-2022-1001666 btrfs: release correct delalloc amount in direct IO write path
A bug in the btrfs filesystem's direct IO write path could lead to incorrect delalloc accounting, potentially causing system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1001666?
GSD-2022-1001666 is a vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
btrfs: release correct delalloc amount in direct IO write path
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 v5.15.35 by commit 07cacfd9d9dc134557ac8866c73d570a59b3d1f3, it was introduced in version v5.15.27 by commit 5afd80c393f4e87451f14eefb7f2f24daf434e06. For more details please see the references link.
Which versions are affected by GSD-2022-1001666?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001666?
No fix has been published for GSD-2022-1001666 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1001666 being exploited?
There is no known exploitation of GSD-2022-1001666 in the wild and no public exploit code.