Function do_futex

CVE-2026-23271/exploit/exploit.cpp:422–427

}

static long do_futex(volatile int *uaddr, int futex_op, int val,
                     const struct timespec *timeout,
                     volatile int *uaddr2, int val3)
{
    return syscall(SYS_futex, uaddr, futex_op, val, timeout, uaddr2, val3);
}

static uint64_t get_time_ns(void)
{