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SubjectRe: [PATCH 00/12] Add kdbus implementation
On Wed, Oct 29, 2014 at 03:19:21PM -0700, Andy Lutomirski wrote:
> On Wed, Oct 29, 2014 at 3:00 PM, Greg Kroah-Hartman
> <> wrote:
> > * Attachment of trustable metadata to each message on demand, such as
> > the sending peer's timestamp, creds, auxgroups, comm, exe, cmdline,
> > cgroup path, capabilities, security label, audit information, etc,
> > each taken at the time the sender issued the ioctl to send the
> > message. Which of those are actually recorded and attached is
> > controlled by the receiving peer.
> I think that each piece of trustable metadata needs to be explicitly
> opted-in to by the sender at the time of capture. Otherwise you're
> asking for lots of information leaks and privilege escalations. This
> is especially important given that some of the items in the current
> list could be rather sensitive.

You do have to opt-in for this information at time of capture, so I
don't understand the issue here. This is the same type of thing that
dbus does today, and I don't see the information leaks happening there,
do you?


greg k-h

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