CVE-2026-34861 华为热管理模块竞态条件漏洞

#include <pthread.h> #include <stdio.h> #include <unistd.h> // Simulated shared resource in thermal driver int thermal_state = 0; // Malicious thread trying to exploit race condition void* malicious_thread(void* arg) { while(1) { // Attempt to modify state during critical section thermal_state = 999; printf("[Malicious] State corrupted to %d\n", thermal_state); usleep(100); } } // Simulated thermal manager thread void* thermal_manager_thread(void* arg) { while(1) { // Critical Section: Check-Then-Act if (thermal_state == 0) { printf("[Manager] Normal operation. Cooling active.\n"); } else { printf("[Manager] ERROR: Invalid thermal state detected! System may crash.\n"); // In a real vulnerability, this leads to Availability impact (A:H) } usleep(100); } } int main() { pthread_t t1, t2; // Create threads to simulate race condition pthread_create(&t1, NULL, malicious_thread, NULL); pthread_create(&t2, NULL, thermal_manager_thread, NULL); pthread_join(t1, NULL); pthread_join(t2, NULL); return 0; }