This is a note to let you know that I've just added the patch titled
xfrm: release neighbor upon dst destruction
to the 3.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xfrm-release-neighbor-upon-dst-destruction.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b79c2530c1d19741a701259d417cae0fd1ed2cd9 Mon Sep 17 00:00:00 2001
From: Romain KUNTZ <r.kuntz@xxxxxxxxxxxxx>
Date: Mon, 18 Feb 2013 02:36:24 +0000
Subject: xfrm: release neighbor upon dst destruction
From: Romain KUNTZ <r.kuntz@xxxxxxxxxxxxx>
[ Upstream commit 18cf0d0784b4a634472ed24d0d7ca1c721d93e90 ]
Neighbor is cloned in xfrm6_fill_dst but seems to never be released.
Neighbor entry should be released when XFRM6 dst entry is destroyed
in xfrm6_dst_destroy, otherwise references may be kept forever on
the device pointed by the neighbor entry.
I may not have understood all the subtleties of XFRM & dst so I would
be happy to receive comments on this patch.
Signed-off-by: Romain Kuntz <r.kuntz@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/ipv6/xfrm6_policy.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -236,6 +236,8 @@ static void xfrm6_dst_destroy(struct dst
{
struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
+ if (likely(xdst->u.rt6.n))
+ neigh_release(xdst->u.rt6.n);
if (likely(xdst->u.rt6.rt6i_idev))
in6_dev_put(xdst->u.rt6.rt6i_idev);
dst_destroy_metrics_generic(dst);
Patches currently in stable-queue which might be from r.kuntz@xxxxxxxxxxxxx are
queue-3.8/xfrm-release-neighbor-upon-dst-destruction.patch
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