bug#47576: [security] ibus-daemon launches ungrafted subprocesses

[Maxime Devos]

On Sat, 2021-04-03 at 03:12 -0400, Mark H Weaver wrote:
> [...]
> 
> The following ungrafted libraries are loaded by processes from the
> mysterious old version of 'ibus' on my system: glib, cairo, and libx11.
> I still have no clue where the reference to that mysterious old version
> (/gnu/store/a4r6q1fbfqapy5hrrxap1yg96rjgln6q-ibus-1.5.22) is coming
> from.
> 
> Are other people seeing this?  Here's an easy way to check:
> 
> [...]
> 
> If you run this command, do you also see different 'ibus' store items
> used by the daemon and its subprocesses?

I also see different store items:

$ ps axf | grep -e -ibus-
> 1141 tty7     Sl     0:00  |           |   \_ 
> /gnu/store/a7lxf1i35yqil6pxwxhzvr5q3xcqldyq-ibus-1.5.22/bin/ibus-daemon 
> --panel disable -r
--xim
> 1146 tty7     Sl     0:00  |           |       \_ 
> /gnu/store/7m04iv3pks6m6p8czw1mj58194rnfjyy-ibus-1.5.22/libexec/ibus-dconf
> 1269 tty7     Sl     0:00  |           |       \_ 
> /gnu/store/7m04iv3pks6m6p8czw1mj58194rnfjyy-ibus-1.5.22/libexec/ibus-engine-simple
> 1148 tty7     Sl     0:00 
> /gnu/store/a7lxf1i35yqil6pxwxhzvr5q3xcqldyq-ibus-1.5.22/libexec/ibus-x11 
> --kill-daemon
> 25649 pts/5    S+     0:00      \_ grep --color=auto -e -ibus-

FWIW, this is on MATE.  (TODO to self: investigate why GNOME Shell crashes
after a few seconds.)

Greetings,
Maxime.

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