Merge pull request FRRouting#19999 from FRRouting/mergify/bp/stable/10.1/pr-19994

lib: mgmt_msg: fix bug with disconnect and event scheduling (backport FRRouting#19994)

Author: donaldsharp

lib/mgmt_msg.c

@@ -563,6 +563,10 @@ void msg_conn_disconnect(struct msg_conn *conn, bool reconnect)
 		close(conn->fd);
 		conn->fd = -1;
 
+		/* We need to unschedule any pending events on this fd */
+		event_cancel(&conn->read_ev);
+		event_cancel(&conn->write_ev);
+
 		/* Notify client through registered callback (if any) */
 		if (conn->notify_disconnect)
 			(void)(*conn->notify_disconnect)(conn);