GSD-2022-1004284 9p: fix fid refcount leak in v9fs_vfs_atomic_open_dotl
A refcount leak in the Linux Kernel 9p filesystem allows local attackers to cause a 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-2022-1004284?
GSD-2022-1004284 is a denial of service vulnerability in Kernel, published on 31 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
9p: fix fid refcount leak in v9fs_vfs_atomic_open_dotl
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 v5.18.8 by commit 8bc5412ba1a45edfd1e451874c483c26a097af2b, it was introduced in version v5.11 by commit 6636b6dcc3db2258cd0585b8078c1c225c4b6dde. For more details please see the references link.
Which versions are affected by GSD-2022-1004284?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1004284?
No fix has been published for GSD-2022-1004284 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-2022-1004284 being exploited?
There is no known exploitation of GSD-2022-1004284 in the wild and no public exploit code.