CVE-2026-34851 华为笔记本电脑事件通知模块竞争条件漏洞

# Proof of Concept for Race Condition (Conceptual) # Note: This is a simulation of the race condition logic. import threading import time class EventNotificationModule: def __init__(self): self.locked = False def critical_section(self): if not self.locked: self.locked = True print("[+] Resource locked, processing event...") time.sleep(0.1) # Simulate processing delay # Vulnerability point: expected state change might be interrupted self.locked = False print("[-] Resource unlocked.") else: print("[!] Race condition detected! Resource already locked.") module = EventNotificationModule() def attacker_thread(): print("[*] Attacker thread started.") while True: module.critical_section() time.sleep(0.05) def user_interaction(): print("[*] Simulating user interaction.") time.sleep(0.02) module.critical_section() # Create threads to simulate the race condition threads = [] for i in range(2): t = threading.Thread(target=attacker_thread) threads.append(t) t.start() # Trigger user interaction as required by UI:R user_thread = threading.Thread(target=user_interaction) user_thread.start() for t in threads: t.join() user_thread.join()