[gentoo-user] dbus problems - am I the only one who has these?

[gentoo-user] dbus problems - am I the only one who has these?

[Helmut Jarausch]

Hi,

(too) often I get dbus errors, especial when running an application as  
root

e.g.

Error getting authority: Error initializing authority: Error calling  
StartServiceByName for org.freedesktop.PolicyKit1:  
GDBus.Error:org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to  
execute program /usr/libexec/dbus-daemon-launch-helper: Success


What might be the reason for these errors?

Many thanks for a hint,
Helmut

Re: [gentoo-user] dbus problems - am I the only one who has these?

[Neil Bothwick]

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On Thu, 11 Jul 2013 08:36:29 +0200, Helmut Jarausch wrote:

> Error getting authority: Error initializing authority: Error calling  
> StartServiceByName for org.freedesktop.PolicyKit1:  
> GDBus.Error:org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to  
> execute program /usr/libexec/dbus-daemon-launch-helper: Success

I get this on my desktop but not my laptop, yet I have been unable to
find the difference that accounts for it. In the end I gave up and made 
/usr/libexec/dbus-daemon-launch-helper world-executable :(


-- 
Neil Bothwick

In a classified ad: "Tired of cleaning yourself? Let me do it."

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Re: [gentoo-user] dbus problems - am I the only one who has these?

[Helmut Jarausch]

On 07/11/2013 10:31:04 AM, Neil Bothwick wrote:
> On Thu, 11 Jul 2013 08:36:29 +0200, Helmut Jarausch wrote:
> 
> > Error getting authority: Error initializing authority: Error calling
> > StartServiceByName for org.freedesktop.PolicyKit1:
> > GDBus.Error:org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to
> > execute program /usr/libexec/dbus-daemon-launch-helper: Success
> 
> I get this on my desktop but not my laptop, yet I have been unable to
> find the difference that accounts for it. In the end I gave up and  
> made
> /usr/libexec/dbus-daemon-launch-helper world-executable :(
> 
> 

Thanks, that fixed it. It looks as if a process switches its UID to a  
non-root UID.
Perhaps the ebuild should be fixed to install sys-apps/dbus with these  
permissions.

Helmut

Re: [gentoo-user] dbus problems - am I the only one who has these?

[Samuli Suominen]

On 11/07/13 12:32, Helmut Jarausch wrote:
> On 07/11/2013 10:31:04 AM, Neil Bothwick wrote:
>> On Thu, 11 Jul 2013 08:36:29 +0200, Helmut Jarausch wrote:
>>
>> > Error getting authority: Error initializing authority: Error calling
>> > StartServiceByName for org.freedesktop.PolicyKit1:
>> > GDBus.Error:org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to
>> > execute program /usr/libexec/dbus-daemon-launch-helper: Success
>>
>> I get this on my desktop but not my laptop, yet I have been unable to
>> find the difference that accounts for it. In the end I gave up and made
>> /usr/libexec/dbus-daemon-launch-helper world-executable :(
>>
>>
>
> Thanks, that fixed it. It looks as if a process switches its UID to a
> non-root UID.
> Perhaps the ebuild should be fixed to install sys-apps/dbus with these
> permissions.

Making it world executable is same as giving root to every user on your 
system -- as it makes it possible to escalate to user 'root' or at least 
group 'messagebus'

So... Instead, the problem is often solved by simple re-emerge:

# emerge -1 glib dbus dbus-glib

Often caused by glib's upgrade (or downgrade) or dbus's upgrade (or 
downgrade) where dbus-glib hasn't been rebuilt with it

- Samuli

Re: [gentoo-user] dbus problems - am I the only one who has these?

[Helmut Jarausch]

On 07/11/2013 11:39:21 AM, Samuli Suominen wrote:
> Making it world executable is same as giving root to every user on  
> your system -- as it makes it possible to escalate to user 'root' or  
> at least group 'messagebus'
> 
> So... Instead, the problem is often solved by simple re-emerge:
> 
> # emerge -1 glib dbus dbus-glib
> 
> Often caused by glib's upgrade (or downgrade) or dbus's upgrade (or  
> downgrade) where dbus-glib hasn't been rebuilt with it
> 

Many thanks, Samuli, that fixed the problem, as well, and doesn't imply  
a security risk.
Helmut

Re: [gentoo-user] dbus problems - am I the only one who has these?

[Neil Bothwick]

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On Thu, 11 Jul 2013 12:39:21 +0300, Samuli Suominen wrote:

> >> I get this on my desktop but not my laptop, yet I have been unable to
> >> find the difference that accounts for it. In the end I gave up and
> >> made /usr/libexec/dbus-daemon-launch-helper world-executable :(

> Making it world executable is same as giving root to every user on your 
> system -- as it makes it possible to escalate to user 'root' or at
> least group 'messagebus'

I realise that, but I was unable to find a proper fix.

> So... Instead, the problem is often solved by simple re-emerge:
> 
> # emerge -1 glib dbus dbus-glib

Often, maybe - always, definitely not. This machine has suffered from
that issue for some time and none of the suggested solutions, including
that one, or a few more desperate measures, have made any difference.


-- 
Neil Bothwick

Never ask a geek why, just nod your head and slowly back away

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Re: [gentoo-user] dbus problems - am I the only one who has these?

[Stroller]

On 11 July 2013, at 13:27, Neil Bothwick wrote:
> ...
>> So... Instead, the problem is often solved by simple re-emerge:
>> 
>> # emerge -1 glib dbus dbus-glib
> 
> Often, maybe - always, definitely not. This machine has suffered from
> that issue for some time and none of the suggested solutions, including
> that one, or a few more desperate measures, have made any difference.

It's not for me to tell you what to do, but in this case the bug should be taken to the dbus developers.

They'll probably want to know about it, and probably be glad to help you fix it.

Stroller.