From: Keir Fraser <keir.fraser@cl.cam.ac.uk>
Date: Tue, 29 Aug 2006 09:43:49 +0000 (-0700)
Subject: [IPV6]: ipv6_add_addr should install dstentry earlier
X-Git-Tag: v2.6.18-rc6~55^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57f5f544f58ffa1d6c38630d0522c9c0be67c533;p=pandora-kernel.git

[IPV6]: ipv6_add_addr should install dstentry earlier

ipv6_add_addr allocates a struct inet6_ifaddr and a dstentry, but it
doesn't install the dstentry in ifa->rt until after it releases the
addrconf_hash_lock. This means other CPUs will be able to see the new
address while it hasn't been initialized completely yet.

One possible fix would be to grab the ifp->lock spinlock when
creating the address struct; a simpler fix is to just move the
assignment.

Acked-by: jbeulich@novell.com
Acked-by: okir@suse.de
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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