| From foo@baz Wed Aug 22 09:42:09 CEST 2018 |
| From: Arun Kumar Neelakantam <aneela@codeaurora.org> |
| Date: Wed, 4 Jul 2018 19:49:32 +0530 |
| Subject: net: qrtr: Broadcast messages only from control port |
| |
| From: Arun Kumar Neelakantam <aneela@codeaurora.org> |
| |
| [ Upstream commit fdf5fd3975666804118e62c69de25dc85cc0909c ] |
| |
| The broadcast node id should only be sent with the control port id. |
| |
| Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| net/qrtr/qrtr.c | 4 ++++ |
| 1 file changed, 4 insertions(+) |
| |
| --- a/net/qrtr/qrtr.c |
| +++ b/net/qrtr/qrtr.c |
| @@ -621,6 +621,10 @@ static int qrtr_sendmsg(struct socket *s |
| node = NULL; |
| if (addr->sq_node == QRTR_NODE_BCAST) { |
| enqueue_fn = qrtr_bcast_enqueue; |
| + if (addr->sq_port != QRTR_PORT_CTRL) { |
| + release_sock(sk); |
| + return -ENOTCONN; |
| + } |
| } else if (addr->sq_node == ipc->us.sq_node) { |
| enqueue_fn = qrtr_local_enqueue; |
| } else { |
