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From: Michael Tokarev <mjt@tls.msk.ru>
To: Henry Cejtin <henry.cejtin@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: /dev/kvm not sufficiently restricted, and in ways I didn't think were possible
Date: Tue, 28 Aug 2012 11:40:25 +0400	[thread overview]
Message-ID: <503C75E9.60901@msgid.tls.msk.ru> (raw)
In-Reply-To: <CAPKXxCp3DebWNWAMuzfnSUn2e4=o5165JimFY=+sEby43ZJGxw@mail.gmail.com>

On 28.08.2012 00:11, Henry Cejtin wrote:
> I'm  completely  confused  about  access to /dev/kvm.  In particular, it
> looks like it is too  open  to  access,  but  in  a  way  that  I  don't
> understand.
> 
> On my machine, /dev/kvm is owned by root.root and mode 660.  Here is the
> output of ls:
> 
>     % ls -l /dev/kvm
>     crw-rw----+ 1 root root 10, 232 Aug 24 15:03 /dev/kvm

Note the plus sign in there (+).  Run getfacl on this file.

Most likely it is consolekit/policykit which has a rule to add
ACLs to some devices (audio etc) for a current session user.

/mjt

  parent reply	other threads:[~2012-08-28  7:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-27 20:11 /dev/kvm not sufficiently restricted, and in ways I didn't think were possible Henry Cejtin
2012-08-27 20:17 ` Avi Kivity
2012-08-28  7:40 ` Michael Tokarev [this message]
  -- strict thread matches above, loose matches on Subject: below --
2012-08-27 18:07 Neal Murphy

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