Bluetooth: bnep: bnep_add_connection() should verify that it's dealing with l2cap...

commit 71bb99a02b32b4cc4265118e85f6035ca72923f0 upstream.

same story as cmtp

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 85bcc21e84d2006c4839b2b7f409f2595cb41858..ce82722d049b7c013fd06f66f726fbbf75a01f56 100644 (file)
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -533,6 +533,9 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
 
        BT_DBG("");
 
+       if (!l2cap_is_socket(sock))
+               return -EBADFD;
+
        baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst);
        baswap((void *) src, &l2cap_pi(sock->sk)->chan->src);