1 files changed, 13 insertions, 1 deletions

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 26ed3e8587c2..1781d99145e2 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -547,8 +547,20 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
         info.userhdr = nlmsg_data(nlh) + GENL_HDRLEN;
         info.attrs = family->attrbuf;
         genl_info_net_set(&info, net);
+        memset(&info.user_ptr, 0, sizeof(info.user_ptr));
 
-        return ops->doit(skb, &info);
+        if (family->pre_doit) {
+                err = family->pre_doit(ops, skb, &info);
+                if (err)
+                        return err;
+        }
+
+        err = ops->doit(skb, &info);
+
+        if (family->post_doit)
+                family->post_doit(ops, skb, &info);
+
+        return err;
 }
 
 static void genl_rcv(struct sk_buff *skb)