On 06/01/2018 03:46 PM, John Fastabend wrote:
> This fixes a crash where we assign tcp_prot to IPv6 sockets instead
> of tcpv6_prot.
...
> + /* ULPs are currently supported only for TCP sockets in ESTABLISHED
> + * state. Supporting sockets in LISTEN state will require us to
> + * modify the accept implementation to clone rather then share the
> + * ulp context.
> + */
> + if (sock->sk_state != TCP_ESTABLISHED)
> + return -ENOTSUPP;
> +
> /* 1. If sock map has BPF programs those will be inherited by the
> * sock being added. If the sock is already attached to BPF programs
> * this results in an error.
>
Next question will be then : What happens if syzbot uses tcp_disconnect() and
then listen() ?
Thanks !
