From: Jiri Pirko <jiri@resnulli.us>
Date: Mon, 13 Oct 2014 14:34:10 +0000 (+0200)
Subject: ipv4: fix nexthop attlen check in fib_nh_match
X-Git-Tag: v3.2.66~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0aba46add2915b344580569e87d9c41274b9c475;p=pandora-kernel.git

ipv4: fix nexthop attlen check in fib_nh_match

commit f76936d07c4eeb36d8dbb64ebd30ab46ff85d9f7 upstream.

fib_nh_match does not match nexthops correctly. Example:

ip route add 172.16.10/24 nexthop via 192.168.122.12 dev eth0 \
                          nexthop via 192.168.122.13 dev eth0
ip route del 172.16.10/24 nexthop via 192.168.122.14 dev eth0 \
                          nexthop via 192.168.122.15 dev eth0

Del command is successful and route is removed. After this patch
applied, the route is correctly matched and result is:
RTNETLINK answers: No such process

Please consider this for stable trees as well.

Fixes: 4e902c57417c4 ("[IPv4]: FIB configuration using struct fib_config")
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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