GNU bug report logs - #66589
30.0.50; core dump in redisplay

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From: Florian Weimer <fweimer <at> redhat.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Evgeny Zajcev <lg.zevlg <at> gmail.com>, 66589 <at> debbugs.gnu.org
Subject: bug#66589: 30.0.50; core dump in redisplay
Date: Mon, 11 Mar 2024 11:26:00 +0100

* Eli Zaretskii:

> Very strange.  This means that both it->char_to_display and it->c are
> bogus, and I have no idea how this could happen.  So it is very
> important that you try to provide a reproduction recipe for this.  I
> will nevertheless try to see if I can figure out how such a situation
> could ever happen.

For me, this (negative it->c value and subsequent fortify crash in
sprintf) happens when displaying an Arabic spam message.  This only
happens during article display.  Copying the message header and text
into a different buffer under text-mode Emacs and then opening it in
graphical Emacs does not trigger the crash for me.

Thanks,
Florian

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