Re: [PATCH net v2 0/2] tcp: restrict crossed SYN specific actions to SYN-ACK

[Paolo Abeni]

On 7/18/24 12:33, Matthieu Baerts (NGI0) wrote:
> A recent commit in TCP affects TFO and MPTCP in some cases. The first
> patch fixes that.
>
> The second one applies the same fix to another crossed SYN specific
> action just before.
>
> These two fixes simply restrict what should be done only for crossed SYN
> cases to packets with SYN-ACK flags.
>
> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
> ---
> Changes in v2:
> - Patch 1/2 has a simpler and generic check (Kuniyuki), and an updated
>    comment.
> - New patch 2/2: a related fix
> - Link to v1: https://lore.kernel.org/r/20240716-upstream-net-next-20240716-tcp-3rd-ack-consume-sk_socket-v1-1-4e61d0b79233@xxxxxxxxxx

Re-adding Neal for awareness. It would be great if this could go through 
some packetdrill testing,

Thanks!

Paolo