From: Hangbin Liu <liuhangbin@gmail.com>
Date: Thu, 26 Jul 2012 22:52:21 +0000 (+0000)
Subject: tcp: Add TCP_USER_TIMEOUT negative value check
X-Git-Tag: v3.2.28~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=df7ba2e6620095039c0aa42af7de1ec565eca2eb;p=pandora-kernel.git

tcp: Add TCP_USER_TIMEOUT negative value check

[ Upstream commit 42493570100b91ef663c4c6f0c0fdab238f9d3c2 ]

TCP_USER_TIMEOUT is a TCP level socket option that takes an unsigned int. But
patch "tcp: Add TCP_USER_TIMEOUT socket option"(dca43c75) didn't check the negative
values. If a user assign -1 to it, the socket will set successfully and wait
for 4294967295 miliseconds. This patch add a negative value check to avoid
this issue.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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