Re: Do not start mpris-proxy for root user

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Hi,
On Sat, May 17, 2025 at 03:12:47PM +0200, Salvatore Bonaccorso wrote:
> On Sun, Jan 26, 2025 at 08:04:27AM -0700, Antonio Russo wrote:
> > Hello,
> > 
> > A default installation of bluez results in the systemd user unit
> > mpris-proxy.service being started for all users---including root.
> > This unnecessarily exposes root to any security vulnerability in
> > mpris-proxy.
> > 
> > Please consider the following trivial patch that changes this
> > default behavior.
> > 
> > Best,
> > Antonio Russo
> > 
> > 
> > From d9e02494e661109607c073968fa352c1397a1ffb Mon Sep 17 00:00:00 2001
> > From: Antonio Enrico Russo <aerusso@xxxxxxxxxxx>
> > Date: Sun, 26 Jan 2025 08:00:26 -0700
> > Subject: [PATCH] Do not start mpris-proxy for root user
> > 
> > A default installation of bluez results in the systemd user unit
> > mpris-proxy.service being started for all users---including root.
> > This unnecessarily exposes root to any security vulnerability in
> > mpris-proxy.
> > 
> > Inhibit this default behavior by using ConditionUser=!root.
> > 
> > Signed-off-by: Antonio Enrico Russo <aerusso@xxxxxxxxxxx>
> > ---
> >  tools/mpris-proxy.service.in | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/tools/mpris-proxy.service.in b/tools/mpris-proxy.service.in
> > index 5307490..118ed6e 100644
> > --- a/tools/mpris-proxy.service.in
> > +++ b/tools/mpris-proxy.service.in
> > @@ -4,6 +4,7 @@ Documentation=man:mpris-proxy(1)
> >  Wants=dbus.socket
> >  After=dbus.socket
> > +ConditionUser=!root
> >  [Service]
> >  Type=simple
> > -- 
> > 2.48.1
> 
> Looping in all primary involved people for adding or touching the
> systemd unit file. Luiz, Guido and Andrew, any opinion on the proposed
> change?

E.g. pipewire does the same, this makes sense to me.

Reviewed-by: Guido Günther <agx@xxxxxxxxxxx>

Cheers,
 -- Guido

> 
> For reference as well discussed in downstream Debian in
> https://bugs.debian.org/1094257
> 
> Regards,
> Salvatore
> 




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