GSD-2022-1006540 btrfs: fix hang during unmount when stopping a space reclaim worker
A flaw in the Linux kernel btrfs filesystem can cause a system hang during unmount, leading to denial of service.
- 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-2022-1006540?
GSD-2022-1006540 is a denial of service vulnerability in Kernel, published on 9 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
btrfs: fix hang during unmount when stopping a space reclaim worker
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 v5.19.12 by commit c338bea1fec5504290dc0acf026c9e7dba25004b, it was introduced in version v4.20 by commit d6fd0ae25c6495674dc5a41a8d16bc8e0073276d. For more details please see the references link.
Which versions are affected by GSD-2022-1006540?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006540?
No fix has been published for GSD-2022-1006540 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-2022-1006540 being exploited?
There is no known exploitation of GSD-2022-1006540 in the wild and no public exploit code.