2 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index f74dd133788f..c9fdde2bc73f 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -165,6 +165,7 @@ struct netlink_skb_parms {
         struct ucred            creds;          /* Skb credentials      */
         __u32                   pid;
         __u32                   dst_group;
+        struct sock             *ssk;
 };
 
 #define NETLINK_CB(skb)         (*(struct netlink_skb_parms*)&((skb)->cb))
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 5463969da45b..7cb7867cc369 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -912,7 +912,8 @@ static void netlink_rcv_wake(struct sock *sk)
                 wake_up_interruptible(&nlk->wait);
 }
 
-static int netlink_unicast_kernel(struct sock *sk, struct sk_buff *skb)
+static int netlink_unicast_kernel(struct sock *sk, struct sk_buff *skb,
+                                  struct sock *ssk)
 {
         int ret;
         struct netlink_sock *nlk = nlk_sk(sk);
@@ -921,6 +922,7 @@ static int netlink_unicast_kernel(struct sock *sk, struct sk_buff *skb)
         if (nlk->netlink_rcv != NULL) {
                 ret = skb->len;
                 skb_set_owner_r(skb, sk);
+                NETLINK_CB(skb).ssk = ssk;
                 nlk->netlink_rcv(skb);
                 consume_skb(skb);
         } else {
@@ -947,7 +949,7 @@ retry:
                 return PTR_ERR(sk);
         }
         if (netlink_is_kernel(sk))
-                return netlink_unicast_kernel(sk, skb);
+                return netlink_unicast_kernel(sk, skb, ssk);
 
         if (sk_filter(sk, skb)) {
                 err = skb->len;