1 files changed, 3 insertions, 1 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index aa659e825054..a356e1fecf9a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5475,7 +5475,9 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
                         if (tp->copied_seq == tp->rcv_nxt &&
                             len - tcp_header_len <= tp->ucopy.len) {
 #ifdef CONFIG_NET_DMA
-                                if (tcp_dma_try_early_copy(sk, skb, tcp_header_len)) {
+                                if (tp->ucopy.task == current &&
+                                    sock_owned_by_user(sk) &&
+                                    tcp_dma_try_early_copy(sk, skb, tcp_header_len)) {
                                         copied_early = 1;
                                         eaten = 1;
                                 }