From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Check that link key exist before accessing.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
---
net/bluetooth/amp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index 5dab2d1..b6e1c3a 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -184,6 +184,10 @@ int phylink_gen_key(struct hci_conn *conn, u8 *data, u8 *len, u8 *type)
*len = HCI_AMP_LINK_KEY_SIZE;
key = hci_find_link_key(hdev, &conn->dst);
+ if (!key) {
+ BT_DBG("No Link key for conn %p dst %pMR", conn, &conn->dst);
+ return -EACCES;
+ }
/* BR/EDR Link Key concatenated together with itself */
memcpy(&keybuf[0], key->val, HCI_LINK_KEY_SIZE);
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
