diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-12-19 06:20:58 +0000 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2017-11-06 15:17:41 +0100 |
| commit | bc9e63491196b3a972e9b7eaacec167c5945121f (patch) | |
| tree | 93ba11a2fe65201f8abe0ec011837cc0ace88a31 | |
| parent | 1beb8475b291ea7f295ab5f21f98c04a1adffb60 (diff) | |
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: Willy Tarreau <w@1wt.eu>
| -rw-r--r-- | net/bluetooth/cmtp/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c index e0a6ebf2b..84460f623 100644 --- a/net/bluetooth/cmtp/core.c +++ b/net/bluetooth/cmtp/core.c @@ -334,6 +334,9 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock) BT_DBG(""); + if (!l2cap_is_socket(sock)) + return -EBADFD; + session = kzalloc(sizeof(struct cmtp_session), GFP_KERNEL); if (!session) return -ENOMEM; |