void SSL_SESSION_get0_ticket(const SSL_SESSION *s, unsigned char **tick,
                            size_t *len)
{
    *len = s->tlsext_ticklen;
    if (tick != NULL)
        *tick = s->tlsext_tick;
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.