GNU bug report logs - #58334
29.0.50; ASAN heap use after free in gui_produce_glyphs

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Gerd Möllmann <gerd.moellmann <at> gmail.com>
Cc: 58334 <at> debbugs.gnu.org, luangruo <at> yahoo.com
Subject: bug#58334: 29.0.50; ASAN heap use after free in gui_produce_glyphs
Date: Thu, 06 Oct 2022 21:30:47 +0300

> From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
> Cc: 58334 <at> debbugs.gnu.org, Po Lu <luangruo <at> yahoo.com>
> Date: Thu, 06 Oct 2022 20:01:21 +0200
> 
> Eli Zaretskii <eliz <at> gnu.org> 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?

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