Re: [PATCH net] tcp: reset late connection after listening socket close

Asbjørn Sloth Tønnesen <[email protected]> Sat, 8 Aug 2026 08:17:50 +0000

Newsgroups	org.kernel.vger.netdev,org.kernel.vger.linux-kernel,org.kernel.vger.stable
Message-ID	<[email protected]>

On 8/7/26 9:05 PM, Kuniyuki Iwashima wrote:
> On Fri, Aug 7, 2026 at 12:47 PM Asbjørn Sloth Tønnesen <[email protected]> wrote:
>> [..]
>> +       if (sk->sk_state == TCP_CLOSE) {
>> +               tcp_v4_send_reset(newsk, skb, SK_RST_REASON_TCP_STATE);
>> +               goto put_and_exit;
>> +       }
> 
> What happens if the state changes here ?
> 
> 
>> +
>>          if (__inet_inherit_port(sk, newsk) < 0)
>>                  goto put_and_exit;
> 
> -ENOENT should be checked to jump to a new label and
> call req->rsk_ops->send_reset() there.

I will do that in v2, thanks.