diff options
| author | Siddh Raman Pant <code@siddh.me> | 2023-12-19 23:19:44 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-12-25 07:29:04 +0000 |
| commit | 6ec0d7527c4287369b52df3bcefd21a0c4fb2b7c (patch) | |
| tree | bdfad21073d51b74221e8666bc7c285bf6a9c2f7 | |
| parent | c95f919567d6f1914f13350af61a1b044ac85014 (diff) | |
| download | linux-stable-6ec0d7527c4287369b52df3bcefd21a0c4fb2b7c.tar.gz linux-stable-6ec0d7527c4287369b52df3bcefd21a0c4fb2b7c.tar.bz2 linux-stable-6ec0d7527c4287369b52df3bcefd21a0c4fb2b7c.zip | |
nfc: Do not send datagram if socket state isn't LLCP_BOUND
As we know we cannot send the datagram (state can be set to LLCP_CLOSED
by nfc_llcp_socket_release()), there is no need to proceed further.
Thus, bail out early from llcp_sock_sendmsg().
Signed-off-by: Siddh Raman Pant <code@siddh.me>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Suman Ghosh <sumang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/nfc/llcp_sock.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 645677f84dba..819157bbb5a2 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -796,6 +796,11 @@ static int llcp_sock_sendmsg(struct socket *sock, struct msghdr *msg, } if (sk->sk_type == SOCK_DGRAM) { + if (sk->sk_state != LLCP_BOUND) { + release_sock(sk); + return -ENOTCONN; + } + DECLARE_SOCKADDR(struct sockaddr_nfc_llcp *, addr, msg->msg_name); |