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| author | Peilin Ye <yepeilin.cs@gmail.com> | 2020-07-10 17:39:18 -0400 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2020-07-13 18:40:58 +0200 |
| commit | 75bbd2ea50ba1c5d9da878a17e92eac02fe0fd3a (patch) | |
| tree | fa06ec12f718acee518acacabfdaf98f374cf4df /net/bluetooth | |
| parent | 3344537f614b966f726c1ec044d1c70a8cabe178 (diff) | |
| download | linux-75bbd2ea50ba1c5d9da878a17e92eac02fe0fd3a.tar.bz2 | |
Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_evt()
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>
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 927bde511170..b97d0247983c 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -2517,7 +2517,7 @@ 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)) |