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| author | Peilin Ye <yepeilin.cs@gmail.com> | 2020-07-10 17:39:18 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-21 09:47:58 +0200 |
| commit | 8b0861f956f65f063662f9553a4dcad574a95b37 (patch) | |
| tree | 9e084f5799da1e2a93e2e6b5adab5758ce775710 | |
| parent | d91299b8382b129156708708d69876e753b9ade6 (diff) | |
| download | linux-stable-8b0861f956f65f063662f9553a4dcad574a95b37.tar.gz linux-stable-8b0861f956f65f063662f9553a4dcad574a95b37.tar.bz2 linux-stable-8b0861f956f65f063662f9553a4dcad574a95b37.zip | |
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>
| -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 b398272bc729..975f73b58330 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -2094,7 +2094,7 @@ 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)) |