GSD-2021-1000539 btrfs: release path before starting transaction when cloning inline extent
A race condition in the btrfs filesystem allows local attackers to cause a denial of service by triggering a transaction error during inline extent cloning.
- 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-2021-1000539?
GSD-2021-1000539 is a vulnerability in Kernel, published on 4 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
btrfs: release path before starting transaction when cloning inline extent
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 v5.12.9 by commit 8bf7fa718152fcccac0376b443c0a6a2613a997e, it was introduced in version by commit . For more details please see the references link.
Which versions are affected by GSD-2021-1000539?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000539?
No fix has been published for GSD-2021-1000539 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000539 being exploited?
There is no known exploitation of GSD-2021-1000539 in the wild and no public exploit code.