1 files changed, 7 insertions, 3 deletions

diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c
index d62e0f9b9da3..94d2368ade92 100644
--- a/net/llc/llc_input.c
+++ b/net/llc/llc_input.c
@@ -142,6 +142,8 @@ int llc_rcv(struct sk_buff *skb, struct net_device *dev,
         struct llc_sap *sap;
         struct llc_pdu_sn *pdu;
         int dest;
+        int (*rcv)(struct sk_buff *, struct net_device *,
+                   struct packet_type *, struct net_device *);
 
         /*
          * When the interface is in promisc. mode, drop all the crap that it
@@ -169,9 +171,11 @@ int llc_rcv(struct sk_buff *skb, struct net_device *dev,
          * First the upper layer protocols that don't need the full
          * LLC functionality
          */
-        if (sap->rcv_func) {
-                sap->rcv_func(skb, dev, pt, orig_dev);
-                goto out_put;
+        rcv = rcu_dereference(sap->rcv_func);
+        if (rcv) {
+                struct sk_buff *cskb = skb_clone(skb, GFP_ATOMIC);
+                if (cskb)
+                        rcv(cskb, dev, pt, orig_dev);
         }
         dest = llc_pdu_type(skb);
         if (unlikely(!dest || !llc_type_handlers[dest - 1]))