GSD-2022-1001658 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
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1001658?
GSD-2022-1001658 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 v5.15.35 by commit 9ded5ae40f4fe37fcc28f36d76bf45df20be5432, it was introduced in version v3.2 by commit 6a2968aaf50c7a22fced77a5e24aa636281efca8. For more details please see the references link.
Which versions are affected by GSD-2022-1001658?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001658?
No fix has been published for GSD-2022-1001658 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-2022-1001658 being exploited?
There is no known exploitation of GSD-2022-1001658 in the wild and no public exploit code.