From: Lachlan Andrew <lachlan.andrew@gmail.com>
Date: Wed, 30 Apr 2008 08:04:03 +0000 (-0700)
Subject: tcp: Overflow bug in Vegas
X-Git-Tag: v2.6.26-rc1~104^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=159131149c2f56c1da5ae5e23ab9d5acef4916d1;p=pandora-kernel.git

tcp: Overflow bug in Vegas

From: Lachlan Andrew <lachlan.andrew@gmail.com>

There is an overflow bug in net/ipv4/tcp_vegas.c for large BDPs
(e.g. 400Mbit/s, 400ms).  The multiplication (old_wnd *
vegas->baseRTT) << V_PARAM_SHIFT overflows a u32.

[ Fix tcp_veno.c too, it has similar calculations. -DaveM ]

Signed-off-by: David S. Miller <davem@davemloft.net>
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