GSD-2022-1003816 nbd: call genl_unregister_family() first in nbd_cleanup()
A use-after-free vulnerability in the Linux kernel NBD module cleanup routine could allow local attackers to cause a denial of service or potentially escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1003816?
GSD-2022-1003816 is an use after free 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
nbd: call genl_unregister_family() first in nbd_cleanup()
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 v4.19.247 by commit 013a79f1b5c89290e2e97f1ebf14b14e0cf5fe5c. For more details please see the references link.
Which versions are affected by GSD-2022-1003816?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003816?
No fix has been published for GSD-2022-1003816 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2022-1003816 being exploited?
There is no known exploitation of GSD-2022-1003816 in the wild and no public exploit code.