| To: | Willy Tarreau <willy@xxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH] fix small DoS on connect() (was Re: BUG: Unusual TCP Connect() results.) |
| From: | Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> |
| Date: | Sun, 12 Jun 2005 22:06:27 +1000 |
| Cc: | davem@xxxxxxxxxxxxx, xschmi00@xxxxxxxxxxxxxxxxxx, alastair@xxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <20050612114039.GI28759@alpha.home.local> |
| References: | <20050611074350.GD28759@alpha.home.local> <E1DhBic-0005dp-00@gondolin.me.apana.org.au> <20050611195144.GF28759@alpha.home.local> <20050612081327.GA24384@gondor.apana.org.au> <20050612083409.GA8220@alpha.home.local> <20050612103020.GA25111@gondor.apana.org.au> <20050612114039.GI28759@alpha.home.local> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mutt/1.5.9i |
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. -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt |
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