From ceff86af56e09469d21732c16fd27a7337983c48 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Thu, 19 Nov 2015 16:16:41 +0100 Subject: [PATCH] Bluetooth: Add instance range check for Add Advertising command The instance range check for Add Advertising command is missing. If the provided instance is out of range an Invalid Parameters error should be returned. At the moment, the generic Failed error is returned. This extra check ensures that clear error messages are returned. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- net/bluetooth/mgmt.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index eca203e891d2..2c6533a3f937 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -6839,6 +6839,10 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev, return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING, status); + if (cp->instance < 1 || cp->instance > HCI_MAX_ADV_INSTANCES) + return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING, + MGMT_STATUS_INVALID_PARAMS); + flags = __le32_to_cpu(cp->flags); timeout = __le16_to_cpu(cp->timeout); duration = __le16_to_cpu(cp->duration); -- 2.30.2