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Date: Sun, 20 Mar 2011 15:45:25 -0400
From: Dan Rosenberg <>
Cc: Vasiliy Kulikov <>, "Steven M. Christey" <>
Subject: Re: CVE request: kernel: a collection of
 world-writable debugfs bugs

I don't mean to create unnecessary work, but have you actually
confirmed that exposing each of these files as world-writable actually
allows a user to cross privilege boundaries?  It seems to me that
while it's bad practice to create these interfaces as world-writable
and should be fixed regardless, unless being able to write to one of
these interfaces actually allows a user to do something he shouldn't
be able to, it's not a security bug by itself.  For example, I've
noticed interfaces that are created with world-writable file
permissions that don't actually do anything useful when you write to


On Sun, Mar 20, 2011 at 9:43 AM, Vasiliy Kulikov <> wrote:
> Steven,
> On Wed, Feb 23, 2011 at 16:23 -0500, Josh Bressers wrote:
>> Thanks for the list. I don't have enough CVE ids for this, I've grouped
>> them by type and version for MITRE to assign IDs.
> Any update on this?
> Thanks,
> --
> Vasiliy Kulikov
> - bringing security into open computing environments

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