1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index b8af2fec5ad5..10c6246396cc 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1185,7 +1185,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
 
         flags = msg->msg_flags;
 
-        if (flags & MSG_ZEROCOPY && size) {
+        if (flags & MSG_ZEROCOPY && size && sock_flag(sk, SOCK_ZEROCOPY)) {
                 if (sk->sk_state != TCP_ESTABLISHED) {
                         err = -EINVAL;
                         goto out_err;