linux-kernel - Re: [dm-devel] [PATCH] dm: add secdel target

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20181019061945.GA7403@infradead.org>
Date:   Thu, 18 Oct 2018 23:19:45 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Vitaly Chikunov <vt@...linux.org>
Cc:     Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
        Jonathan Corbet <corbet@....net>, Shaohua Li <shli@...nel.org>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-raid@...r.kernel.org
Subject: Re: [dm-devel] [PATCH] dm: add secdel target

Just as a note:  the name is a complete misowner, a couple overwrite
are not in any way secure deletion.  So naming it this way and exposing
this as erase is a problem that is going to get back to bite us.

If you really want this anyway at least give it a different way, and
do a one-time warning when th first erase comes in that it is not in
any meaninful way secure.