Bluetooth: cmtp: cmtp_add_connection() should verify that it's dealing with l2cap...
authorAl Viro <viro@zeniv.linux.org.uk>
Fri, 19 Dec 2014 06:20:58 +0000 (06:20 +0000)
committerBen Hutchings <ben@decadent.org.uk>
Mon, 1 Jan 2018 20:51:03 +0000 (20:51 +0000)
commit16a6be25e09c31cb2825107886e5d22e61440413
tree14a68220d57441bf2380f8a9e78f5c8be285b211
parent6b369a5d1ed6c5c04a76db01c21802e1ca11ec82
Bluetooth: cmtp: cmtp_add_connection() should verify that it's dealing with l2cap socket

commit 96c26653ce65bf84f3212f8b00d4316c1efcbf4c upstream.

... rather than relying on ciptool(8) never passing it anything else.  Give
it e.g. an AF_UNIX connected socket (from socketpair(2)) and it'll oops,
trying to evaluate &l2cap_pi(sock->sk)->chan->dst...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
net/bluetooth/cmtp/core.c