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From: "Gerd Möllmann" <gerd.moellmann@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 56108@debbugs.gnu.org
Subject: bug#56108: 29.0.50; ASAN use-after-free in re_match_2_internal
Date: Wed, 22 Jun 2022 17:11:55 +0200	[thread overview]
Message-ID: <e2818b28-245a-448f-827a-60cc7ceb738f@Spark> (raw)
In-Reply-To: <831qvgkc8d.fsf@gnu.org>

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Maybe I have something.  Could you please check?

Please read the following list from the bottom up, i.e. re_match... calls maybe_quit etc.

maybe_gc
Ffuncall
call2
signal_or_quit (eval.c:1741)
quit (eval.c:1697)
process_quit_flag (eval.c:1657)
probably_quit (eval.c:1864)
maybe_quit (lisp.h:3681)
re_match_2_internal (regexp-emacs.c:4691)

If this is true a GC can be triggered under very specific circumstances involving edebug, if the comment in signal_or_quit is right.

And I might have used edebug, I'm not 100% sure anymore.

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  reply	other threads:[~2022-06-22 15:11 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-20 14:07 bug#56108: 29.0.50; ASAN use-after-free in re_match_2_internal Gerd Möllmann
2022-06-20 19:09 ` Eli Zaretskii
2022-06-22  8:13   ` Gerd Möllmann
2022-06-22 13:38     ` Eli Zaretskii
2022-06-22 14:10       ` Gerd Möllmann
2022-06-22 14:24         ` Eli Zaretskii
2022-06-22 15:11           ` Gerd Möllmann [this message]
2022-06-22 16:19             ` Eli Zaretskii
2022-06-23  5:53               ` Gerd Möllmann
2022-06-23  6:57                 ` Eli Zaretskii
2022-06-23  7:17                   ` Eli Zaretskii
2022-06-23 21:29                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-06-24  5:55                       ` Eli Zaretskii
2022-06-24  6:01                         ` Gerd Möllmann
2022-06-24  9:35                           ` Gerd Möllmann
2022-06-24 15:40                             ` Eli Zaretskii
2022-06-25  9:18                               ` Eli Zaretskii
2022-06-27 13:26                             ` Eli Zaretskii
2022-06-27 13:29                               ` Gerd Möllmann
2022-06-23  8:24                   ` Gerd Möllmann
2022-06-23  8:37                     ` Eli Zaretskii
2022-06-23  8:49                       ` Gerd Möllmann

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