diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2014-06-17 15:14:48 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-07-03 17:42:43 +0200 |
| commit | 4ec86d4c86fe563482f183243f15bcd5fd3e65c5 (patch) | |
| tree | c8607b098a1143c432c003b3befeb37bb4a92947 | |
| parent | 8ba8b4c05c3562d771fbfd2e7ee5648b41f04a9d (diff) | |
Bluetooth: Fix validating IO capability values in mgmt commands
The valid range of IO capabilities for the Set IO Capability and Pair
Device mgmt commands is 0-4 (4 being the KeyboarDisplay capability for
SMP). We should return an invalid parameters error if user space gives
us a value outside of this range.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | net/bluetooth/mgmt.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 99eb845865ef..5bf032d9bce1 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2766,6 +2766,10 @@ static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data, BT_DBG(""); + if (cp->io_capability > SMP_IO_KEYBOARD_DISPLAY) + return cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, + MGMT_STATUS_INVALID_PARAMS, NULL, 0); + hci_dev_lock(hdev); hdev->io_capability = cp->io_capability; @@ -2878,6 +2882,11 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, MGMT_STATUS_INVALID_PARAMS, &rp, sizeof(rp)); + if (cp->io_cap > SMP_IO_KEYBOARD_DISPLAY) + return cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE, + MGMT_STATUS_INVALID_PARAMS, + &rp, sizeof(rp)); + hci_dev_lock(hdev); if (!hdev_is_powered(hdev)) { |