Re: Ubuntu RT2X00 WIFI USB Driver Kernel NULL pointer Dereference&Use-After-Free Vulnerability

Greg KH
2024-08-19T10:56:52Z

On Mon, Aug 19, 2024 at 06:49:42PM +0800, color Ice wrote:
> How is the patch development progressing? We would like to conduct a
> full verification test. It’s possible that many drivers have this
> issue, so you could try a simple fix, and we’ll see how it works.

This should be unique to this driver, but please, test others.

> Recently, we tested some embedded devices where the operating systems,
> due to automated operations involving WiFi drivers, had UDEV rules
> built-in or granted significant permissions to USB. This allows the
> PoC to cause a kernel crash without needing root or sudo.

But how are you allowed to run local programs on systems that have those
types of permissions?

thanks,

greg k-h