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

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Message-ID: <2024081946-designate-dioxide-c59d@gregkh>
Date: Mon, 19 Aug 2024 12:56:43 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: color Ice <wirelessdonghack@...il.com>
Cc: Alan Stern <stern@...land.harvard.edu>, kvalo@...nel.org,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-wireless@...r.kernel.org, mark.esler@...onical.com,
	stf_xl@...pl, tytso@....edu
Subject: Re: Ubuntu RT2X00 WIFI USB Driver Kernel NULL pointer
 Dereference&Use-After-Free Vulnerability

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