CVE-2026-28819 Apple多平台越界写入致内核代码执行漏洞

#include <stdio.h> #include <stdlib.h> #include <string.h> // Simulated vulnerable kernel function prototype void vulnerable_kernel_copy(char *user_input, int length); int main() { // Malicious input designed to trigger out-of-bounds write char payload[256]; memset(payload, 0x41, sizeof(payload)); // Fill with 'A' printf("[*] Triggering CVE-2026-28819 PoC simulation...\n"); // Attempt to exploit the vulnerability by passing a large buffer // In a real scenario, this would interact with a specific IOCTL or system call vulnerable_kernel_copy(payload, 512); // Intentionally causing overflow printf("[*] Exploit payload sent.\n"); return 0; } /** * Conceptual simulation of the vulnerable function. * This is NOT the actual Apple code, but a representation of the flaw. */ void vulnerable_kernel_copy(char *user_input, int length) { // Vulnerability: No bounds checking on 'length' relative to kernel_buffer size char kernel_buffer[128]; // Unsafe copy leads to Out-of-bounds Write for(int i = 0; i < length; i++) { kernel_buffer[i] = user_input[i]; } }