GNU bug report logs - #11442
dbus uses Emacs integer as pointer, possible core dump

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Message #14 received at 11442 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: 11442 <at> debbugs.gnu.org, Paul Eggert <eggert <at> cs.ucla.edu>
Subject: Re: bug#11442: dbus uses Emacs integer as pointer, possible core dump
Date: Wed, 09 May 2012 23:19:29 +0200

Andreas Schwab <schwab <at> linux-m68k.org> writes:

>> In general, I agree with you. In the given case, it is just a pointer
>> address which has been written in Fdbus_init_bus. No other place is
>> expected to write such an address, but since it is a Lisp object,
>> somebody could do by mistake.
>
> Why is Vdbus_registered_buses exported to lisp?

Indeed, that's the question.

When I wrote the new code for private buses, it was needed in dbus.el
(don't remember the reason). In the final code I've committed,
dbus-registered-buses isn't needed anymore on Lisp level.

I've converted it to be an internal Lisp object. Paul, is this
sufficient from your pov, or do we need more checks?

> Andreas.

Best regards, Michael.

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