diff options
| author | Marcel Holtmann <marcel@holtmann.org> | 2015-04-01 22:51:53 +0200 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2015-04-02 07:43:11 +0200 |
| commit | 5f5da99f1da5b01c7c45473a500c7dbb77a00958 (patch) | |
| tree | d13a71ede7e5d4d2b84da3917d08fedfd7f7fb33 /net/bluetooth/hidp | |
| parent | Bluetooth: Restrict CMTP flags to only valid ones (diff) | |
| download | linux-5f5da99f1da5b01c7c45473a500c7dbb77a00958.tar.xz linux-5f5da99f1da5b01c7c45473a500c7dbb77a00958.zip | |
Bluetooth: Restrict HIDP flags to only valid ones
The HIDP flags should be clearly restricted to valid ones. So this puts
extra checks in place to ensure this.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth/hidp')
| -rw-r--r-- | net/bluetooth/hidp/core.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index 07348e142f16..926a0e8b7136 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -70,10 +70,11 @@ static void hidp_session_terminate(struct hidp_session *s); static void hidp_copy_session(struct hidp_session *session, struct hidp_conninfo *ci) { + u32 valid_flags = 0; memset(ci, 0, sizeof(*ci)); bacpy(&ci->bdaddr, &session->bdaddr); - ci->flags = session->flags; + ci->flags = session->flags & valid_flags; ci->state = BT_CONNECTED; if (session->input) { @@ -1312,6 +1313,7 @@ int hidp_connection_add(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock) { + u32 valid_flags = 0; struct hidp_session *session; struct l2cap_conn *conn; struct l2cap_chan *chan; @@ -1321,6 +1323,9 @@ int hidp_connection_add(struct hidp_connadd_req *req, if (ret) return ret; + if (req->flags & ~valid_flags) + return -EINVAL; + chan = l2cap_pi(ctrl_sock->sk)->chan; conn = NULL; l2cap_chan_lock(chan); @@ -1351,8 +1356,12 @@ out_conn: int hidp_connection_del(struct hidp_conndel_req *req) { + u32 valid_flags = BIT(HIDP_VIRTUAL_CABLE_UNPLUG); struct hidp_session *session; + if (req->flags & ~valid_flags) + return -EINVAL; + session = hidp_session_find(&req->bdaddr); if (!session) return -ENOENT; |