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Re: tcp vulnerability? haven't seen anything on it here...

To: root@xxxxxxxxxxxxxxxxxx
Subject: Re: tcp vulnerability? haven't seen anything on it here...
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Thu, 22 Apr 2004 11:28:01 -0700
Cc: pochini@xxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx, cfriesen@xxxxxxxxxxxxxxxxxx, joern@xxxxxxxxxxxxxxxxxxxx
In-reply-to: <Pine.LNX.4.53.0404220734330.8039@chaos>
References: <XFMail.20040422102359.pochini@xxxxxxxx> <Pine.LNX.4.53.0404220734330.8039@chaos>
Sender: netdev-bounce@xxxxxxxxxxx
On Thu, 22 Apr 2004 07:35:54 -0400 (EDT)
"Richard B. Johnson" <root@xxxxxxxxxxxxxxxxxx> wrote:

> Has anybody checked to see what Linux does if it receives a
> RST to the broadcast address? It would be a shame if all
> connections were dropped!

int tcp_v4_rcv(struct sk_buff *skb)
{
 ...
        if (skb->pkt_type != PACKET_HOST)
                goto discard_it;

Packets which are multicast or broadcast do not get marked
as "PACKET_HOST".

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