Subject: Re: bug#58334: 29.0.50; ASAN heap use after free in gui_produce_glyphs

From: Eli Zaretskii <[email-masked]>
Date: Thu, 06 Oct 2022 21:30:47 +0300

> From: Gerd Möllmann <[email-masked]>
> Cc: [email-masked], Po Lu <[email-masked]>
> Date: Thu, 06 Oct 2022 20:01:21 +0200
> 
> Eli Zaretskii <[email-masked]> writes:
> 
> >> Is there a way to prevent freeing realized faces?
> >
> > Yes: set inhibit_free_realized_faces non-zero (and record
> > unwind_protect to restore it).
> 
> Thanks.

Actually, I no longer think this will help, because redisplay_internal
sets inhibit_free_realized_faces to zero at the beginning...

Any way of figuring out which face is it that triggers the ASAN?  Is
it one of the basic faces, or some non-basic face?