linux-kernel - Re: [RFC PATCH v21 0/6] mm: security: ro protection for dynamic data

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Message-ID: <20180327105509.62ec0d4d@lwn.net>
Date:   Tue, 27 Mar 2018 10:55:09 -0600
From:   Jonathan Corbet <corbet@....net>
To:     Igor Stoppa <igor.stoppa@...wei.com>
Cc:     <willy@...radead.org>, <keescook@...omium.org>,
        <mhocko@...nel.org>, <david@...morbit.com>,
        <rppt@...ux.vnet.ibm.com>, <labbott@...hat.com>,
        <linux-security-module@...r.kernel.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>,
        <kernel-hardening@...ts.openwall.com>, <igor.stoppa@...il.com>
Subject: Re: [RFC PATCH v21 0/6] mm: security: ro protection for dynamic
 data

On Tue, 27 Mar 2018 18:37:36 +0300
Igor Stoppa <igor.stoppa@...wei.com> wrote:

> This patch-set introduces the possibility of protecting memory that has
> been allocated dynamically.

One thing that jumps out at me as I look at the patch set is: you do not
include any users of this functionality.  Where do you expect this
allocator to be used?  Actually seeing the API in action would be a useful
addition, I think.

Thanks,

jon