It's hard to say. It's important to protect yourself.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | // Function to check if a pointer is within the process's mapped memory regions int is_pointer_in_memory_range(void *ptr) { FILE *fp = fopen("/proc/self/maps", "r"); if (!fp) { perror("fopen"); return 0; } char line[256]; uintptr_t addr = (uintptr_t)ptr; uintptr_t start, end; while (fgets(line, sizeof(line), fp)) { if (sscanf(line, "%lx-%lx", &start, &end) == 2) { if (addr >= start && addr < end) { fclose(fp); return 1; // Pointer is in a valid range } } } fclose(fp); return 0; // Pointer is not in the mapped memory range } |
