CVE-2022-50565 wifi: plfxlc: fix potential memory leak in __lf_x_usb_enable_rx()
A memory leak in the Linux kernel's plfxlc WiFi driver allows attackers to cause denial of service by triggering error paths in USB RX initialization.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-50565?
CVE-2022-50565 is a memory corruption vulnerability in Linux, published on 22 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: plfxlc: fix potential memory leak in __lf_x_usb_enable_rx()
urbs does not be freed in exception paths in __lf_x_usb_enable_rx(). That will trigger memory leak. To fix it, add kfree() for urbs within "error" label. Compile tested only.
Which versions are affected by CVE-2022-50565?
How do I fix CVE-2022-50565?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-50565 being exploited?
There is no known exploitation of CVE-2022-50565 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50565, GHSA-gghq-qxv7-569h, UBUNTU-CVE-2022-50565.