GSD-2022-1000041 usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.
A use-after-free vulnerability in the Linux Kernel USB gadget functionfs driver allows local attackers to potentially escalate privileges or cause a system crash.
- 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-2022-1000041?
GSD-2022-1000041 is an use after free vulnerability in Kernel, published on 10 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.
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 v5.10.90 by commit 1c4ace3e6b8575745c50dca9e76e0021e697d645, it was introduced in version v4.0 by commit 5e33f6fdf735cda1d4580fe6f1878da05718fe73. For more details please see the references link.
Which versions are affected by GSD-2022-1000041?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000041?
No fix has been published for GSD-2022-1000041 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-2022-1000041 being exploited?
There is no known exploitation of GSD-2022-1000041 in the wild and no public exploit code.