diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b45101f3d2bd..31a255b555ad 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -769,6 +769,7 @@ static void tcp_tasklet_func(unsigned long data)
 		list_del(&tp->tsq_node);
 
 		sk = (struct sock *)tp;
+		smp_mb__before_atomic();
 		clear_bit(TSQ_QUEUED, &sk->sk_tsq_flags);
 
 		if (!sk->sk_lock.owned &&