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authorLachlan Andrew <lachlan.andrew@gmail.com>2008-04-30 01:04:03 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-30 01:04:03 -0700
commit159131149c2f56c1da5ae5e23ab9d5acef4916d1 (patch)
tree7ad3fc498c27fd8dfdf4a1fcf506b1220919f715 /arch/arm/mach-ixp4xx
parentbe9164e769d57aa10b2bbe15d103edc041b9e7de (diff)
downloadlinux-159131149c2f56c1da5ae5e23ab9d5acef4916d1.tar.gz
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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