diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index 5dab2d1c7c8284f2896b08cbbc00507684f5a2ff..b6e1c3ac74f1858acd466dea9897a8b47affbad1 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);