diff options
| -rw-r--r-- | net/nfc/llcp/sock.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index d511a4c2fef6..0fa1e92ceac8 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -608,6 +608,25 @@ static int llcp_sock_sendmsg(struct kiocb *iocb, struct socket *sock, lock_sock(sk); + if (sk->sk_type == SOCK_DGRAM) { + struct sockaddr_nfc_llcp *addr = + (struct sockaddr_nfc_llcp *)msg->msg_name; + + if (msg->msg_namelen < sizeof(*addr)) { + release_sock(sk); + + pr_err("Invalid socket address length %d\n", + msg->msg_namelen); + + return -EINVAL; + } + + release_sock(sk); + + return nfc_llcp_send_ui_frame(llcp_sock, addr->dsap, addr->ssap, + msg, len); + } + if (sk->sk_state != LLCP_CONNECTED) { release_sock(sk); return -ENOTCONN; |