From: Brian Gix <brian.gix@intel.com>
Date: Mon, 23 Aug 2021 21:57:29 +0000 (-0700)
Subject: Bluetooth: mgmt: Disallow legacy MGMT_OP_READ_LOCAL_OOB_EXT_DATA
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=81218cbee980b1d027c429dda56c8c5ac11ccb4d;p=linux.git

Bluetooth: mgmt: Disallow legacy MGMT_OP_READ_LOCAL_OOB_EXT_DATA

Legacy (v2.0) controllers do not support Extended OOB Data used by SSP.

Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index cea01e275f1ea..17be5cc528bf4 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -7315,6 +7315,11 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
 	if (!rp)
 		return -ENOMEM;
 
+	if (!status && !lmp_ssp_capable(hdev)) {
+		status = MGMT_STATUS_NOT_SUPPORTED;
+		eir_len = 0;
+	}
+
 	if (status)
 		goto complete;