GSD-2022-1007443 io_uring/af_unix: defer registered files gc to io_uring release
A use-after-free vulnerability in the Linux kernel's io_uring subsystem allows local attackers to potentially escalate privileges or execute code.
- 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-2022-1007443?
GSD-2022-1007443 is an use after free vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
io_uring/af_unix: defer registered files gc to io_uring release
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 v5.4.220 by commit 04df9719df1865f6770af9bc7880874af0e594b2, it was introduced in version v5.1 by commit 6b06314c47e141031be043539900d80d2c7ba10f. For more details please see the references link.
Which versions are affected by GSD-2022-1007443?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007443?
No fix has been published for GSD-2022-1007443 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-2022-1007443 being exploited?
There is no known exploitation of GSD-2022-1007443 in the wild and no public exploit code.