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Bluetooth: Enforce packet types in hci_recv_frame driver function 

When calling the hci_recv_frame driver function check for valid packet
types that the core should process. This should catch issues with
drivers trying to feed vendor packet types through this interface.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-10-08 03:14:28 +02:00 committed by Johan Hedberg
parent 943cc59219
commit fe806dcede
1 changed files with 7 additions and 0 deletions
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7
net/bluetooth/hci_core.c
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@ -3538,6 +3538,13 @@ int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb)
return -ENXIO; return -ENXIO;
} }
if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT &&
bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT &&
bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) {
kfree_skb(skb);
return -EINVAL;
}
/* Incoming skb */ /* Incoming skb */
bt_cb(skb)->incoming = 1; bt_cb(skb)->incoming = 1;