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

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Message-Id: <20240806023450.1040873-1-wirelessdonghack@gmail.com>
Date: Tue,  6 Aug 2024 10:34:50 +0800
From: LidongLI <wirelessdonghack@...il.com>
To: gregkh@...uxfoundation.org
Cc: 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,
	wirelessdonghack@...il.com
Subject: Re: Ubuntu RT2X00 WIFI USB Driver Kernel NULL pointer Dereference&Use-After-Free Vulnerability

Dear Greg,

Here is a scenario where udev rules are necessary. They can be used to automatically execute a series of configuration and security operations when a wireless network adapter is inserted, ensuring the stability and security of the system. An example is as follows:

# 1. Create a udev rules file
sudo nano /etc/udev/rules.d/99-custom-usb.rules

# 2. Add the following content to the file, replacing idVendor and idProduct with actual values
SUBSYSTEM=="usb", ATTR{idVendor}=="148f", ATTR{idProduct}=="3070", MODE="0666", RUN+="/path/to/custom/script.sh"

# 3. Example of a custom script
# Create a script file
sudo nano /path/to/custom/script.sh

# Add custom commands to the script file
#!/bin/bash
# Example commands
iwconfig wlan0 essid "MyNetwork"
ifconfig wlan0 up
dhclient wlan0