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[BLUETOOTH]: Fix unaligned access in hci_send_to_sock. 

The "u16 *" derefs of skb->data need to be wrapped inside of
a get_unaligned().

Thanks to Gustavo Zacarias for the bug report.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-11-21 16:17:41 -08:00
parent 785fd8b8a5
commit 4498c80d9c
1 changed files with 7 additions and 4 deletions
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11
net/bluetooth/hci_sock.c
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@ -120,10 +120,13 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
if (!hci_test_bit(evt, &flt->event_mask))
continue;
if (flt->opcode && ((evt == HCI_EV_CMD_COMPLETE &&
flt->opcode != *(__u16 *)(skb->data + 3)) ||
(evt == HCI_EV_CMD_STATUS &&
flt->opcode != *(__u16 *)(skb->data + 4))))
if (flt->opcode &&
((evt == HCI_EV_CMD_COMPLETE &&
flt->opcode !=
get_unaligned((__u16 *)(skb->data + 3))) ||
(evt == HCI_EV_CMD_STATUS &&
flt->opcode !=
get_unaligned((__u16 *)(skb->data + 4)))))
continue;
}