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authorMarcel Holtmann <marcel@holtmann.org>2015-11-19 15:16:41 (GMT)
committerJohan Hedberg <johan.hedberg@intel.com>2015-11-22 13:00:16 (GMT)
commitceff86af56e09469d21732c16fd27a7337983c48 (patch)
tree86aed6f06e699f72507270d42aa5c4cc72eae713 /net/bluetooth
parente9d63767258753f28920d954712806a061b69547 (diff)
downloadlinux-ceff86af56e09469d21732c16fd27a7337983c48.tar.xz
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 <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/mgmt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index eca203e..2c6533a 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);