diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2007-09-17 22:53:39 +0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 03:49:08 +0400 |
| commit | e730c15519d09ea528b4d2f1103681fa5937c0e6 (patch) | |
| tree | c117294523f4d004fb1d740610b6403e5744cdfc /net/decnet/dn_route.c | |
| parent | 6d34b1c27a72d5d1c73c567b2f6b1fde316e0eae (diff) | |
| download | linux-e730c15519d09ea528b4d2f1103681fa5937c0e6.tar.xz | |
[NET]: Make packet reception network namespace safe
This patch modifies every packet receive function
registered with dev_add_pack() to drop packets if they
are not from the initial network namespace.
This should ensure that the various network stacks do
not receive packets in a anything but the initial network
namespace until the code has been converted and is ready
for them.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/dn_route.c')
| -rw-r--r-- | net/decnet/dn_route.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c index 4cfea9563d2a..580e786d0c38 100644 --- a/net/decnet/dn_route.c +++ b/net/decnet/dn_route.c @@ -584,6 +584,9 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type struct dn_dev *dn = (struct dn_dev *)dev->dn_ptr; unsigned char padlen = 0; + if (dev->nd_net != &init_net) + goto dump_it; + if (dn == NULL) goto dump_it; |