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From: "Gerd Möllmann" <gerd.moellmann@gmail.com>
To: Po Lu <luangruo@yahoo.com>
Cc: Eli Zaretskii <eliz@gnu.org>,
	58042@debbugs.gnu.org, Alan Third <alan@idiocy.org>
Subject: bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal
Date: Wed, 05 Oct 2022 13:15:49 +0200	[thread overview]
Message-ID: <m2mtaav7ve.fsf@Mini.fritz.box> (raw)
In-Reply-To: <87y1tuv851.fsf@yahoo.com> (Po Lu's message of "Wed, 05 Oct 2022 19:10:02 +0800")

Po Lu <luangruo@yahoo.com> writes:

> I'm going to guess that window_sub_list is returning a window that was
> not marked during GC.  It's a problem that also exists with my
> incremental garbage collector.  Does this help?
>
> diff --git a/src/alloc.c b/src/alloc.c
> index 419c5e558b..522925d248 100644
> --- a/src/alloc.c
> +++ b/src/alloc.c
> @@ -6634,6 +6634,9 @@ mark_window (struct Lisp_Vector *ptr)
>        mark_glyph_matrix (w->desired_matrix);
>      }
>  
> +  if (w->next)
> +    mark_window (w->next);
> +
>    /* Filter out killed buffers from both buffer lists
>       in attempt to help GC to reclaim killed buffers faster.
>       We can do it elsewhere for live windows, but this is the

Indeed, that seems to work!





  reply	other threads:[~2022-10-05 11:15 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-24 13:45 bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal Gerd Möllmann
2022-09-24 14:17 ` Gerd Möllmann
2022-09-24 14:48   ` Gerd Möllmann
2022-09-24 14:56   ` Eli Zaretskii
2022-09-24 15:08     ` Gerd Möllmann
2022-09-24 15:24       ` Eli Zaretskii
2022-09-25  5:50         ` Gerd Möllmann
2022-09-25  6:32           ` Eli Zaretskii
2022-09-25  7:06             ` Gerd Möllmann
2022-09-25  8:08               ` Eli Zaretskii
2022-09-25  8:28                 ` Gerd Möllmann
2022-09-25  8:43                   ` Eli Zaretskii
2022-09-26  5:13                     ` Gerd Möllmann
2022-10-04 14:33 ` Gerd Möllmann
2022-10-04 16:35   ` Eli Zaretskii
2022-10-05  4:37     ` Gerd Möllmann
2022-10-05  6:16       ` Eli Zaretskii
2022-10-05  6:58         ` Gerd Möllmann
2022-10-05  7:22           ` Eli Zaretskii
2022-10-05  7:34             ` Gerd Möllmann
2022-10-05  9:00               ` Gerd Möllmann
2022-10-05  9:23                 ` Eli Zaretskii
2022-10-05 10:14                   ` Gerd Möllmann
2022-10-05 10:24                     ` Gerd Möllmann
2022-10-05 10:43                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 10:49                         ` Gerd Möllmann
2022-10-05 11:10                           ` Gerd Möllmann
2022-10-05 11:15                             ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 11:37                               ` Gerd Möllmann
2022-10-05 13:37                               ` Eli Zaretskii
2022-10-05 13:52                                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 14:09                                   ` Eli Zaretskii
2022-10-05 14:24                                     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 13:27                             ` Eli Zaretskii
2022-10-05 13:31                               ` Gerd Möllmann
2022-10-05 13:55                                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-08 14:01                         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-09  1:04                           ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-09  2:25                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-09  5:30                             ` Eli Zaretskii
2022-10-05 10:45                       ` Gerd Möllmann
2022-10-05 11:10                         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 11:15                           ` Gerd Möllmann [this message]
2022-10-05 11:23                             ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 11:35                               ` Gerd Möllmann
2022-10-05 12:02                               ` Gerd Möllmann
2022-10-05 12:08                                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 13:40                               ` Eli Zaretskii
2022-10-05 13:53                                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 14:10                                   ` Eli Zaretskii
2022-10-05 12:05                             ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 12:32                               ` Gerd Möllmann
2022-10-05 12:38                                 ` Gerd Möllmann
2022-10-05 12:49                                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-05 12:48                                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-06  5:20                                   ` Gerd Möllmann
2022-10-05 13:39                           ` Eli Zaretskii
2022-10-05 13:13                         ` Eli Zaretskii
2022-10-05 13:24                           ` Gerd Möllmann
2022-10-05 12:59                     ` Eli Zaretskii
2022-10-06  5:35 ` Gerd Möllmann
2022-10-06  6:59   ` Eli Zaretskii
2022-10-06  7:21     ` Gerd Möllmann
2022-10-06  8:08       ` Eli Zaretskii
2022-10-06  8:23         ` Gerd Möllmann

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