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bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal
From: |
Eli Zaretskii |
Subject: |
bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal |
Date: |
Wed, 05 Oct 2022 16:27:27 +0300 |
> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>, 58042@debbugs.gnu.org, Alan Third
> <alan@idiocy.org>
> Date: Wed, 05 Oct 2022 13:10:03 +0200
>
> Can somone please help me understand how this works?
>
> Let's say we are in memq called for list L. Fmemq uses FOR_EACH_TAIL,
> which can call maybe_quit, which executes arbitrary Lisp, which can
> modify L.
"Arbitrary Lisp" being redisplay that calls various hooks, like
window-configuration-change-hook etc.? IOW, this is a macOS only
thing?
Perhaps on macOS probably_quit should bind inhibit_redisplay non-zero?
I see no particular reason to trigger redisplay from maybe_quit.
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, (continued)
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Eli Zaretskii, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Eli Zaretskii, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal,
Eli Zaretskii <=
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Gerd Möllmann, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Po Lu, 2022/10/05
- bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal, Eli Zaretskii, 2022/10/05