CVE-2025-52513 Samsung Exynos处理器HTS驱动竞争条件漏洞

// CVE-2025-52513 PoC Concept - Race Condition Trigger // This is a conceptual PoC demonstrating the race condition #include <pthread.h> #include <stdio.h> #include <stdlib.h> #define NUM_THREADS 10 #define ITERATIONS 1000 // Simulated HTS driver vulnerability trigger void *trigger_hts_race(void *arg) { int thread_id = *(int *)arg; for (int i = 0; i < ITERATIONS; i++) { // Trigger concurrent access to HTS driver // In real scenario, this would be ioctl/sysfs interface trigger_hts_write(thread_id, i); // Small delay to increase race condition probability sched_yield(); } return NULL; } void trigger_hts_write(int thread_id, int iteration) { // Simulate HTS driver vulnerable code path // The race condition occurs when multiple threads // access shared state without proper synchronization static int shared_counter = 0; static char buffer[64]; // Vulnerable: Non-atomic read-modify-write int idx = shared_counter; // Race window - other threads can modify shared_counter here if (idx < 64) { buffer[idx] = thread_id; // Potential out-of-bounds write } shared_counter++; // Non-atomic increment } int main() { pthread_t threads[NUM_THREADS]; int thread_ids[NUM_THREADS]; printf("CVE-2025-52513 PoC - HTS Driver Race Condition\n"); printf("Target: Samsung Exynos 2400/1580/2500\n\n"); // Create multiple threads to trigger race condition for (int i = 0; i < NUM_THREADS; i++) { thread_ids[i] = i; pthread_create(&threads[i], NULL, trigger_hts_race, &thread_ids[i]); } // Wait for all threads for (int i = 0; i < NUM_THREADS; i++) { pthread_join(threads[i], NULL); } printf("Race condition test completed.\n"); printf("Check system logs for crashes/panics.\n"); return 0; } // Note: This is a conceptual PoC for educational purposes. // Actual exploitation requires device-specific knowledge and // access to HTS driver interface on Samsung Exynos devices.