bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely

[dick]

That you think embedding the `(while t "whoopsie")` in a font-lock
callback somehow make emacs more culpable is indicative of a young
person's rush to judgment and inclination to conflate.

I challenge you to find another single-threaded program in which "while
(true)" doesn't require a kernel-level interrupt.