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Bluetooth: hci_event: Use skb_pull_data when processing inquiry results

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This makes each result entry to be checked using skb_pull_data instead
of acessing them by index.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Luiz Augusto von Dentz 2021-12-13 13:38:57 -08:00 • committed by Marcel Holtmann
parent 744451c162
commit fee645033e
1 changed files with 18 additions and 2 deletions
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20
net/bluetooth/hci_event.c
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@ -4531,7 +4531,15 @@ static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
for (i = 0; i < ev->res2->num; i++) { for (i = 0; i < ev->res2->num; i++) {
u32 flags; u32 flags;
info = &ev->res2->info[i]; info = hci_ev_skb_pull(hdev, skb,
HCI_EV_INQUIRY_RESULT_WITH_RSSI,
sizeof(*info));
if (!info) {
bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
HCI_EV_INQUIRY_RESULT_WITH_RSSI);
return;
}
bacpy(&data.bdaddr, &info->bdaddr); bacpy(&data.bdaddr, &info->bdaddr);
data.pscan_rep_mode = info->pscan_rep_mode; data.pscan_rep_mode = info->pscan_rep_mode;
data.pscan_period_mode = info->pscan_period_mode; data.pscan_period_mode = info->pscan_period_mode;
@ -4553,7 +4561,15 @@ static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
for (i = 0; i < ev->res1->num; i++) { for (i = 0; i < ev->res1->num; i++) {
u32 flags; u32 flags;
info = &ev->res1->info[i]; info = hci_ev_skb_pull(hdev, skb,
HCI_EV_INQUIRY_RESULT_WITH_RSSI,
sizeof(*info));
if (!info) {
bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
HCI_EV_INQUIRY_RESULT_WITH_RSSI);
return;
}
bacpy(&data.bdaddr, &info->bdaddr); bacpy(&data.bdaddr, &info->bdaddr);
data.pscan_rep_mode = info->pscan_rep_mode; data.pscan_rep_mode = info->pscan_rep_mode;
data.pscan_period_mode = info->pscan_period_mode; data.pscan_period_mode = info->pscan_period_mode;