GSD-2022-1002868 Bluetooth: hci_qca: Use del_timer_sync() before freeing
A use-after-free vulnerability in the Linux Kernel Bluetooth driver allows local attackers to cause a denial of service or potentially execute code.
- 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-2022-1002868?
GSD-2022-1002868 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
Bluetooth: hci_qca: Use del_timer_sync() before freeing
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 v5.18.2 by commit 2717654ae022e6ea959a4b7b762702fe1a4690c2, it was introduced in version v4.3 by commit 0ff252c1976da5d80db1377eb39b551931e61826. For more details please see the references link.
Which versions are affected by GSD-2022-1002868?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002868?
No fix has been published for GSD-2022-1002868 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-2022-1002868 being exploited?
There is no known exploitation of GSD-2022-1002868 in the wild and no public exploit code.