This article is from the RSC/UKSC Cricket FAQ, by Ganesh with numerous contributions by others.
Contributor(s): Ron Knight, Mike Holmans and Dianne
You can't be stumped off a no-ball, but can be off a wide.
Off a no-ball, you can be run out, be out obstructing the
field, handled the ball, and hit the ball twice.
That is only dismissal modes where the batsman is taking
a unfair advantage over the fielding side.