Bluetooth: Fix checking for correct mgmt_load_link_keys parameters

The debug_keys parameter is only allowed to have the values 0x00 and
0x01. Any other value should result in a proper command status with
MGMT_STATUS_INVALID_PARAMS.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 36b23101d651..d9b042efbf42 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1519,6 +1519,10 @@ static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
                                   MGMT_STATUS_INVALID_PARAMS);
         }
 
+        if (cp->debug_keys != 0x00 && cp->debug_keys != 0x01)
+                return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
+                                  MGMT_STATUS_INVALID_PARAMS);
+
         BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
                key_count);