GSD-2022-1003021 wifi: mac80211: fix use-after-free in chanctx code
A use-after-free vulnerability in the Linux kernel mac80211 Wi-Fi subsystem allows attackers to potentially execute code or cause a system crash.
- 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-2022-1003021?
GSD-2022-1003021 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
wifi: mac80211: fix use-after-free in chanctx code
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 v5.17.14 by commit 82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c, it was introduced in version v3.17 by commit 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f. For more details please see the references link.
Which versions are affected by GSD-2022-1003021?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003021?
No fix has been published for GSD-2022-1003021 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-2022-1003021 being exploited?
There is no known exploitation of GSD-2022-1003021 in the wild and no public exploit code.