1 files changed, 2 insertions, 0 deletions

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 8eb87b11d100..7342abc2cfa1 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -340,8 +340,10 @@ static void bclink_send_nack(struct tipc_node *n_ptr)
                 msg_set_bcgap_to(msg, n_ptr->bclink.gap_to);
                 msg_set_bcast_tag(msg, tipc_own_tag);
 
+                spin_lock_bh(&bc_lock);
                 tipc_bearer_send(&bcbearer->bearer, buf, NULL);
                 bcl->stats.sent_nacks++;
+                spin_unlock_bh(&bc_lock);
                 buf_discard(buf);
 
                 /*