team: Don't allow team devices to change network namespaces.

Like bonding, team as netdevice doesn't cross netns boundaries.

Team ports and team itself live in same netns.

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index dff24e3dde4a..28407426fd6f 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2034,6 +2034,10 @@ static void team_setup(struct net_device *dev)
 
         dev->features |= NETIF_F_LLTX;
         dev->features |= NETIF_F_GRO;
+
+        /* Don't allow team devices to change network namespaces. */
+        dev->features |= NETIF_F_NETNS_LOCAL;
+
         dev->hw_features = TEAM_VLAN_FEATURES |
                            NETIF_F_HW_VLAN_CTAG_TX |
                            NETIF_F_HW_VLAN_CTAG_RX |