GSD-2022-1002750 btrfs: fix anon_dev leak in create_subvol()
A resource leak in the btrfs filesystem allows local attackers to exhaust anonymous device numbers, potentially causing 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-2022-1002750?
GSD-2022-1002750 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
btrfs: fix anon_dev leak in create_subvol()
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 v5.18.3 by commit 7a875ad8706f0903a0e812e0dd701956ee9826ff. For more details please see the references link.
Which versions are affected by GSD-2022-1002750?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002750?
No fix has been published for GSD-2022-1002750 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-2022-1002750 being exploited?
There is no known exploitation of GSD-2022-1002750 in the wild and no public exploit code.