From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 23 Nov 2011 20:49:31 +0000 (-0500)
Subject: ipv6: tcp: fix panic in SYN processing
X-Git-Tag: v3.2-rc5~56^2~44
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c16a98ed91597b40b22b540c6517103497ef8e74;p=pandora-kernel.git

ipv6: tcp: fix panic in SYN processing

commit 72a3effaf633bc ([NET]: Size listen hash tables using backlog
hint) added a bug allowing inet6_synq_hash() to return an out of bound
array index, because of u16 overflow.

Bug can happen if system admins set net.core.somaxconn &
net.ipv4.tcp_max_syn_backlog sysctls to values greater than 65536

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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