From: Gilad Ben-Yossef <gilad@codefidence.com>
Date: Thu, 5 Nov 2009 07:21:44 +0000 (-0800)
Subject: tcp: Do not call IPv4 specific func in tcp_check_req
X-Git-Tag: v2.6.33-rc1~388^2~511
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05eaade2782fb0c90d3034fd7a7d5a16266182bb;p=pandora-kernel.git

tcp: Do not call IPv4 specific func in tcp_check_req

Calling IPv4 specific inet_csk_route_req in tcp_check_req
is a bad idea and crashes machine on IPv6 connections, as reported
by Valdis Kletnieks

Also, all we are really interested in is the timestamp
option in the header, so calling tcp_parse_options()
with the "estab" set to false flag is an overkill as
it tries to parse half a dozen other TCP options.

We know whether timestamp should be enabled or not
using data from request_sock.

Signed-off-by: Gilad Ben-Yossef <gilad@codefidence.com>
Tested-by: Valdis.Kletnieks@vt.edu
Signed-off-by: David S. Miller <davem@davemloft.net>
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