From: Paolo Abeni <pabeni@redhat.com>
Date: Fri, 29 Jan 2016 11:30:20 +0000 (+0100)
Subject: ipv6/udp: use sticky pktinfo egress ifindex on connect()
X-Git-Tag: v3.2.80~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cc84cca6a658e456cb4479adb4ff22308fa802d4;p=pandora-kernel.git

ipv6/udp: use sticky pktinfo egress ifindex on connect()

[ Upstream commit 1cdda91871470f15e79375991bd2eddc6e86ddb1 ]

Currently, the egress interface index specified via IPV6_PKTINFO
is ignored by __ip6_datagram_connect(), so that RFC 3542 section 6.7
can be subverted when the user space application calls connect()
before sendmsg().
Fix it by initializing properly flowi6_oif in connect() before
performing the route lookup.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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