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| author | Moni Shoua <monis@voltaire.com> | 2007-10-09 19:43:37 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-15 14:20:45 -0400 |
| commit | 200d1713b47200aa478f27e454e3d957264d49be (patch) | |
| tree | cc7a1849ebfac45538075af5819aadfeeba4b331 /drivers/infiniband | |
| parent | 732a2170f499ce7cf5f0bdd4f9e0b0c8337b67e1 (diff) | |
| download | op-kernel-dev-200d1713b47200aa478f27e454e3d957264d49be.zip op-kernel-dev-200d1713b47200aa478f27e454e3d957264d49be.tar.gz | |
IB/ipoib: Verify address handle validity on send
When the bonding device senses a carrier loss of its active slave it replaces
that slave with a new one. In between the times when the carrier of an IPoIB
device goes down and ipoib_neigh is destroyed, it is possible that the
bonding driver will send a packet on a new slave that uses an old ipoib_neigh.
This patch detects and prevents this from happenning.
Signed-off-by: Moni Shoua <monis at voltaire.com>
Signed-off-by: Or Gerlitz <ogerlitz at voltaire.com>
Acked-by: Roland Dreier <rdreier@cisco.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index cae026c..362610d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -692,9 +692,10 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) goto out; } } else if (neigh->ah) { - if (unlikely(memcmp(&neigh->dgid.raw, + if (unlikely((memcmp(&neigh->dgid.raw, skb->dst->neighbour->ha + 4, - sizeof(union ib_gid)))) { + sizeof(union ib_gid))) || + (neigh->dev != dev))) { spin_lock(&priv->lock); /* * It's safe to call ipoib_put_ah() inside |
