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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat, 5 Jan 2019 12:13:01 -0800
Message-ID: <CAHk-=wif_9nvNHJiyxHzJ80_WUb0P7CXNBvXkjZz-r1u0ozp7g@mail.gmail.com>
Subject: Re: [PATCH] mm/mincore: allow for making sys_mincore() privileged
To:     Jiri Kosina <jikos@kernel.org>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Michal Hocko <mhocko@suse.com>, linux-mm@kvack.org,
        Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
        linux-api@vger.kernel.org
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On Sat, Jan 5, 2019 at 11:46 AM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> Can we please just limit it to vma's that are either anonymous, or map
> a file that the user actually owns?

.. or slightly simpler: a file that the user opened for writing.

IOW, some (TOTALLY UNTESTED!) patch like this?

               Linus

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