diff options
| author | Peilin Ye <yepeilin.cs@gmail.com> | 2020-07-11 00:39:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-11 16:33:34 +0300 |
| commit | 70d1e884edc4c049e6fc0b6915d8a167b8988e59 (patch) | |
| tree | 7ebb75433ec137326ba9b6f219f10f8582420591 /net/bluetooth | |
| parent | c26eaaf547b785ae98fa08607b599c7df0da51bc (diff) | |
| download | linux-70d1e884edc4c049e6fc0b6915d8a167b8988e59.tar.xz | |
Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_evt()
commit 75bbd2ea50ba1c5d9da878a17e92eac02fe0fd3a upstream.
Check `num_rsp` before using it as for-loop counter.
Cc: stable@vger.kernel.org
Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/hci_event.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index c7e4496b243e..33c3c5b0fef0 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -2444,7 +2444,7 @@ static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb) BT_DBG("%s num_rsp %d", hdev->name, num_rsp); - if (!num_rsp) + if (!num_rsp || skb->len < num_rsp * sizeof(*info) + 1) return; if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) |