1 files changed, 1 insertions, 1 deletions

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index b5989c6ee551..131545a06f05 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1353,7 +1353,7 @@ static int packet_rcv_fanout(struct sk_buff *skb, struct net_device *dev,
                              struct packet_type *pt, struct net_device *orig_dev)
 {
         struct packet_fanout *f = pt->af_packet_priv;
-        unsigned int num = f->num_members;
+        unsigned int num = READ_ONCE(f->num_members);
         struct packet_sock *po;
         unsigned int idx;