diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index e4aee59..8455ba1 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1068,6 +1068,17 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
 	return conn;
 }
 
+static bool hci_conn_unlink(struct hci_conn *conn)
+{
+	if (!conn->link)
+		return false;
+
+	conn->link->link = NULL;
+	conn->link = NULL;
+
+	return true;
+}
+
 int hci_conn_del(struct hci_conn *conn)
 {
 	struct hci_dev *hdev = conn->hdev;
@@ -1079,15 +1090,16 @@ int hci_conn_del(struct hci_conn *conn)
 	cancel_delayed_work_sync(&conn->idle_work);
 
 	if (conn->type == ACL_LINK) {
-		struct hci_conn *sco = conn->link;
-		if (sco) {
-			sco->link = NULL;
+		struct hci_conn *link = conn->link;
+
+		if (link) {
+			hci_conn_unlink(conn);
 			/* Due to race, SCO connection might be not established
 			 * yet at this point. Delete it now, otherwise it is
 			 * possible for it to be stuck and can't be deleted.
 			 */
-			if (sco->handle == HCI_CONN_HANDLE_UNSET)
-				hci_conn_del(sco);
+			if (link->handle == HCI_CONN_HANDLE_UNSET)
+				hci_conn_del(link);
 		}
 
 		/* Unacked frames */
@@ -1103,7 +1115,7 @@ int hci_conn_del(struct hci_conn *conn)
 		struct hci_conn *acl = conn->link;
 
 		if (acl) {
-			acl->link = NULL;
+			hci_conn_unlink(conn);
 			hci_conn_drop(acl);
 		}
 
@@ -2434,6 +2446,12 @@ void hci_conn_hash_flush(struct hci_dev *hdev)
 		c->state = BT_CLOSED;
 
 		hci_disconn_cfm(c, HCI_ERROR_LOCAL_HOST_TERM);
+
+		/* Unlink before deleting otherwise it is possible that
+		 * hci_conn_del removes the link which may cause the list to
+		 * contain items already freed.
+		 */
+		hci_conn_unlink(c);
 		hci_conn_del(c);
 	}
 }