linux-kernel - Re: usercopy whitelist woe in scsi_sense

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Message-ID: <CAGXu5jKPynuv61n=h3Fn8eLmxwG3+V+9XXHRfmV9MQ9+RrcKYQ@mail.gmail.com>
Date:   Mon, 9 Apr 2018 16:03:12 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Oleksandr Natalenko <oleksandr@...alenko.name>
Cc:     David Windsor <dave@...lcore.net>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        Hannes Reinecke <hare@...e.com>,
        Johannes Thumshirn <jthumshirn@...e.de>,
        linux-block@...r.kernel.org, paolo.valente@...aro.org
Subject: Re: usercopy whitelist woe in scsi_sense_cache

On Mon, Apr 9, 2018 at 1:30 PM, Kees Cook <keescook@...omium.org> wrote:
> Ah! dm-crypt too. I'll see if I can get that added easily to my tests.

Quick update: I added dm-crypt (with XFS on top) and it hung my system
almost immediately. I got no warnings at all, though.

-Kees

-- 
Kees Cook
Pixel Security