[debbugs-tracker] bug#11442: closed (dbus uses Emacs integer as pointer, possible core dump)

[GNU bug Tracking System]

Your message dated Wed, 09 May 2012 14:35:47 -0700
with message-id <address@hidden>
and subject line Re: bug#11442: dbus uses Emacs integer as pointer, possible 
core dump
has caused the debbugs.gnu.org bug report #11442,
regarding dbus uses Emacs integer as pointer, possible core dump
to be marked as done.

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-- 
11442: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11442
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> --- Begin Message ---
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> Subject: 
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> dbus uses Emacs integer as pointer, possible core dump
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> Date: 
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> Wed, 09 May 2012 08:20:57 -0700
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> User-agent: 
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> Mozilla/5.0 (X11; Linux i686;	rv:12.0) Gecko/20120430 Thunderbird/12.0.1
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> The trunk version of Emacs src/dbusbind.c contains a function
> xd_get_connection_address that does this:
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>     connection = (DBusConnection *) (intptr_t) XFASTINT (val);
>
> This converts an Emacs integer to a pointer without checking
> that it is actually of the proper C type.  It is possible
> for Lisp code to mistakenly put an integer there that will
> cause Emacs to dump core.  Shouldn't this be made safe, so
> that Lisp code can't do that?  For example, a DbusConnection *
> could be made a proper Lisp pseudovector or misc type or
> something like that.  The idea is to avoid a bad pointer
> leaking into the C code.
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> --- End Message ---
> --- Begin Message ---
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> Subject: 
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> Re: bug#11442: dbus uses Emacs integer as pointer, possible core dump
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> Date: 
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> Wed, 09 May 2012 14:35:47 -0700
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> User-agent: 
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> Mozilla/5.0 (X11; Linux x86_64;	rv:11.0) Gecko/20120329 Thunderbird/11.0.1
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> On 05/09/2012 02:19 PM, Michael Albinus wrote:
> > I've converted it to be an internal Lisp object.
>
> Thanks; that looks good.  Closing the bug.
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> --- End Message ---