Phonet: do not dump addresses from other namespaces

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index b1770d66bc8d..242fe8f8c322 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -123,6 +123,7 @@ nla_put_failure:
 
 static int getaddr_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
 {
+        struct net *net = sock_net(skb->sk);
         struct phonet_device *pnd;
         int dev_idx = 0, dev_start_idx = cb->args[0];
         int addr_idx = 0, addr_start_idx = cb->args[1];
@@ -131,6 +132,8 @@ static int getaddr_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
         list_for_each_entry(pnd, &pndevs.list, list) {
                 u8 addr;
 
+                if (!net_eq(dev_net(pnd->netdev), net))
+                        continue;
                 if (dev_idx > dev_start_idx)
                         addr_start_idx = 0;
                 if (dev_idx++ < dev_start_idx)