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SubjectRe: [PATCH] fix small DoS on connect() (was Re: BUG: Unusual TCP Connect() results.)
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On Sun, Jun 12, 2005 at 01:40:39PM +0200, Willy Tarreau wrote:
>
> Sorry Herbert, but both RFC793 page 32 figure 9 and my Linux box disagree
> with this statement. Look: at line 5, A rejects the SYN-ACK because the
> ACK is wrong during the session setup.

Look at the first check inside th->ack in tcp_rcv_synsent_state_process.
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