diff options
| author | Siddh Raman Pant <code@siddh.me> | 2023-12-19 23:19:44 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-20 11:51:46 +0100 |
| commit | e79e7c3aa5222d6ca24a9986c489256e36dec56a (patch) | |
| tree | 82914037dc2c5bba9701a60cb99d368bfbf091bf | |
| parent | 79aa992c80381ee8cf96eb2e43659779903c2177 (diff) | |
nfc: Do not send datagram if socket state isn't LLCP_BOUND
[ Upstream commit 6ec0d7527c4287369b52df3bcefd21a0c4fb2b7c ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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); |