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

[GNU bug Tracking System]

Your message dated Sun, 02 Aug 2020 20:24:10 +0300
with message-id <83mu3darlx.fsf@gnu.org>
and subject line Re: bug#42676: 26.3, 27.1-rc1, master: Emacs (X11) segfaults 
if XIM is set but not XIM_Styles
has caused the debbugs.gnu.org bug report #42676,
regarding 26.3, 27.1-rc1, master: Emacs (X11) segfaults if XIM is set but not 
XIM_Styles
to be marked as done.

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--- Begin Message --- 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 User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0

 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
Description: Text Data

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> --- Begin Message ---
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> Subject: 
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> Re: bug#42676: 26.3, 27.1-rc1, master: Emacs (X11) segfaults if XIM is set but not XIM_Styles
>
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> Date: 
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> Sun, 02 Aug 2020 20:24:10 +0300
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> > From: Grégory Mounié
> >  <Gregory.Mounie@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.
>
>
> --- End Message ---