[NETLINK]: Ignore control messages directly in netlink_run_queue()

Changes netlink_rcv_skb() to skip netlink controll messages and don't
pass them on to the message handler.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 4 deletions

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 913c8b727d8f..4d2f2094e6df 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1860,10 +1860,6 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *err
 
         type = nlh->nlmsg_type;
 
-        /* A control message: ignore them */
-        if (type < XFRM_MSG_BASE)
-                return 0;
-
         /* Unknown message: reply with EINVAL */
         if (type > XFRM_MSG_MAX)
                 goto err_einval;