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Bluetooth: Enforce packet types in hci_recv_frame driver function
[cascardo/linux.git]
/
net
/
bluetooth
/
hci_core.c
diff --git
a/net/bluetooth/hci_core.c
b/net/bluetooth/hci_core.c
index
43a1f2d
..
b2095ca
100644
(file)
--- a/
net/bluetooth/hci_core.c
+++ b/
net/bluetooth/hci_core.c
@@
-3538,6
+3538,13
@@
int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb)
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 */
bt_cb(skb)->incoming = 1;