From: Eli Zaretskii <eliz@gnu.org>
To: Po Lu <luangruo@yahoo.com>
Cc: gerd.moellmann@gmail.com, 58334@debbugs.gnu.org
Subject: bug#58334: 29.0.50; ASAN heap use after free in gui_produce_glyphs
Date: Fri, 07 Oct 2022 14:13:30 +0300 [thread overview]
Message-ID: <83o7unopid.fsf@gnu.org> (raw)
In-Reply-To: <874jwgqbd6.fsf@yahoo.com> (message from Po Lu on Fri, 07 Oct 2022 16:36:05 +0800)
> From: Po Lu <luangruo@yahoo.com>
> Cc: Eli Zaretskii <eliz@gnu.org>, 58334@debbugs.gnu.org
> Date: Fri, 07 Oct 2022 16:36:05 +0800
>
> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>
> > And, while vaccuming, I also wondered what happens with the glyph
> > matrices, and maybe other global state?
>
> Isn't input blocked wherever the glyph matrices are modified?
No, not in general. Why would it? We don't allow re-entering
redisplay anyway.
> If not, how come expose_frame always works correctly?
expose_frame doesn't modify glyph matrices, it only uses them,
i.e. accesses them in read-only fashion. At least AFAIK, that is.
next prev parent reply other threads:[~2022-10-07 11:13 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-06 15:03 bug#58334: 29.0.50; ASAN heap use after free in gui_produce_glyphs Gerd Möllmann
2022-10-06 16:00 ` Eli Zaretskii
2022-10-06 18:01 ` Gerd Möllmann
2022-10-06 18:30 ` Eli Zaretskii
2022-10-06 18:36 ` Gerd Möllmann
2022-10-07 12:01 ` Eli Zaretskii
2022-10-07 12:03 ` Gerd Möllmann
2022-10-07 12:06 ` Eli Zaretskii
2022-10-07 12:08 ` Gerd Möllmann
2022-10-07 12:12 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 12:16 ` Eli Zaretskii
2022-10-07 12:23 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 12:14 ` Eli Zaretskii
2022-10-07 12:34 ` Gerd Möllmann
2022-10-07 0:37 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 5:06 ` Gerd Möllmann
2022-10-07 7:12 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 7:20 ` Gerd Möllmann
2022-10-07 0:46 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 5:23 ` Gerd Möllmann
2022-10-07 7:03 ` Eli Zaretskii
2022-10-07 7:20 ` Gerd Möllmann
2022-10-07 8:07 ` Gerd Möllmann
2022-10-07 8:36 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 8:54 ` Gerd Möllmann
2022-10-07 10:28 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 11:11 ` Gerd Möllmann
2022-10-07 11:19 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 11:34 ` Eli Zaretskii
2022-10-07 11:38 ` Gerd Möllmann
2022-10-07 11:29 ` Eli Zaretskii
2022-10-07 12:16 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 12:27 ` Eli Zaretskii
2022-10-07 11:19 ` Eli Zaretskii
2022-10-07 11:34 ` Gerd Möllmann
2022-10-07 11:13 ` Eli Zaretskii [this message]
2022-10-07 11:08 ` Eli Zaretskii
2022-10-07 11:29 ` Gerd Möllmann
2022-10-07 11:44 ` Eli Zaretskii
2022-10-07 12:01 ` Gerd Möllmann
2022-10-07 12:05 ` Eli Zaretskii
2022-10-07 12:14 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 12:17 ` Gerd Möllmann
2022-10-07 12:22 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 12:36 ` Gerd Möllmann
2022-10-08 6:58 ` Gerd Möllmann
2022-10-08 7:59 ` Eli Zaretskii
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