GNU bug report logs - #42676
26.3, 27.1-rc1, master: Emacs (X11) segfaults if XIM is set but not XIM_Styles

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Grégory Mounié <Gregory.Mounie <at> imag.fr>
To: bug-gnu-emacs <at> gnu.org
Subject: 26.3, 27.1-rc1, master: Emacs (X11) segfaults if XIM is set but not
 XIM_Styles
Date: Sun, 2 Aug 2020 16:36:32 +0200

[Message part 1 (text/plain, inline)]

 Hello

 Emacs (emacs -Q with X11) segfaults in xfns.c (create_frame_xic), at 
its initialization, if XIM pointer is set, but not XIM_styles pointer.

 The patch extends the check on xim pointer to add the XIM_Styles 
pointer too.

 The code is at least several years old (git blame write "2014-03" in 
26.3 branch). The bug is present in master, 27.1-rc1 and 26.3 branch.

 The bug triggers today in my settings (emacs 26.3 from my debian/sid 
with gdm3 and windowmaker), but I do not know exactly why yet.

 Have a nice day
 Grégory Mounié

[0001-Emacs-segfaults-if-xim-is-set-but-not-xim_styles.patch (text/x-patch, attachment)]

Message #12 received at 42676-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Grégory Mounié <Gregory.Mounie <at> imag.fr>
Cc: 42676-done <at> debbugs.gnu.org
Subject: Re: bug#42676: 26.3, 27.1-rc1,
 master: Emacs (X11) segfaults if XIM is set but not XIM_Styles
Date: Sun, 02 Aug 2020 20:24:10 +0300

> From: Grégory Mounié
>  <Gregory.Mounie <at> imag.fr>
> Date: Sun, 2 Aug 2020 16:36:32 +0200
> 
>   Emacs (emacs -Q with X11) segfaults in xfns.c (create_frame_xic), at 
> its initialization, if XIM pointer is set, but not XIM_styles pointer.
> 
>   The patch extends the check on xim pointer to add the XIM_Styles 
> pointer too.

Thanks, I installed this change.

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