GSD-2022-1000979 nfc: nci: add flush_workqueue to prevent uaf
A use-after-free vulnerability in the Linux Kernel NFC subsystem allows local attackers to potentially execute code or escalate privileges.
- 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-2022-1000979?
GSD-2022-1000979 is an use after free vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
nfc: nci: add flush_workqueue to prevent uaf
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 v5.17.4 by commit edd4600120641e1714e30112e69a548cfb68e067, it was introduced in version v3.2 by commit 6a2968aaf50c7a22fced77a5e24aa636281efca8. For more details please see the references link.
Which versions are affected by GSD-2022-1000979?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000979?
No fix has been published for GSD-2022-1000979 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-2022-1000979 being exploited?
There is no known exploitation of GSD-2022-1000979 in the wild and no public exploit code.