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| author | David Herrmann <dh.herrmann@gmail.com> | 2013-04-05 16:57:34 +0400 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2013-04-06 06:44:14 +0400 |
| commit | b3916db32c4a3124eee9f3742a2f4723731d7602 (patch) | |
| tree | 342531410aa6985decfc173e3bf892d7b4ec47e8 /include/net/bluetooth/l2cap.h | |
| parent | c849edbdc2fc3a9ba37ae6810d7a1e2c92b302d7 (diff) | |
| download | linux-b3916db32c4a3124eee9f3742a2f4723731d7602.tar.xz | |
Bluetooth: hidp: verify l2cap sockets
We need to verify that the given sockets actually are l2cap sockets. If
they aren't, we are not supposed to access bt_sk(sock) and we shouldn't
start the session if the offsets turn out to be valid local BT addresses.
That is, if someone passes a TCP socket to HIDCONNADD, then we access some
random offset in the TCP socket (which isn't even guaranteed to be valid).
Fix this by checking that the socket is an l2cap socket.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'include/net/bluetooth/l2cap.h')
| -rw-r--r-- | include/net/bluetooth/l2cap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index cdd33021f831..278830ef92cd 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -786,6 +786,7 @@ extern bool disable_ertm; int l2cap_init_sockets(void); void l2cap_cleanup_sockets(void); +bool l2cap_is_socket(struct socket *sock); void __l2cap_connect_rsp_defer(struct l2cap_chan *chan); int __l2cap_wait_ack(struct sock *sk); |