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Date:   Tue, 26 Mar 2019 12:21:56 -0700
From:   Matthew Garrett <>
To:     Andy Lutomirski <>
Cc:     James Morris <>,
        LSM List <>,
        LKML <>,
        David Howells <>,
        Linux API <>,
        Greg KH <>
Subject: Re: [PATCH V31 25/25] debugfs: Disable open() when kernel is locked down

On Tue, Mar 26, 2019 at 12:20 PM Andy Lutomirski <> wrote:
> Ugh.  Some of those files are very useful.  Could this perhaps still
> allow O_RDONLY if we're in INTEGRITY mode?

The previous implementation did, but Greg wanted it to go away entirely.

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