GNU bug report logs - #58042
29.0.50; ASAN use-after-free in re_match_2_internal

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Package: emacs;

Reported by: Gerd Möllmann <gerd.moellmann <at> gmail.com>

Date: Sat, 24 Sep 2022 13:46:01 UTC

Severity: normal

Found in version 29.0.50

Fixed in version 29.1

Done: Gerd Möllmann <gerd.moellmann <at> gmail.com>

Bug is archived. No further changes may be made.

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From: Po Lu <luangruo <at> yahoo.com>
To: Gerd Möllmann <gerd.moellmann <at> gmail.com>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 58042 <at> debbugs.gnu.org, Alan Third <alan <at> idiocy.org>
Subject: bug#58042: 29.0.50; ASAN use-after-free in re_match_2_internal
Date: Wed, 05 Oct 2022 20:49:10 +0800

Gerd Möllmann <gerd.moellmann <at> gmail.com> writes:

> And with this it works again:
>
> diff --git a/src/window.c b/src/window.c
> index 12a212a85a..da80fabe33 100644
> --- a/src/window.c
> +++ b/src/window.c
> @@ -8213,6 +8213,8 @@ init_window_once (void)
>  
>    minibuf_selected_window = Qnil;
>    staticpro (&minibuf_selected_window);
> +  old_selected_window = Qnil;
> +  staticpro (&old_selected_window);
>  
>    pdumper_do_now_and_after_late_load (init_window_once_for_pdumper);
>  }

Right, but please see what I said about old_selected_frame; I think it
is intentionally not staticpro'd.
This bug report was last modified 2 years and 72 days ago.

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