linux-kernel - Re: [PATCH v4] bsg: mitigate read/write abuse, block uaccess in release

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Date:   Mon, 16 Jul 2018 18:57:34 +0200
From:   Jann Horn <jannh@...gle.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Christoph Hellwig <hch@...radead.org>, axboe@...nel.dk,
        fujita.tomonori@....ntt.co.jp, linux-block@...r.kernel.org,
        linux-scsi@...r.kernel.org,
        kernel list <linux-kernel@...r.kernel.org>,
        Douglas Gilbert <dgilbert@...erlog.com>,
        Al Viro <viro@...iv.linux.org.uk>, jejb@...ux.vnet.ibm.com,
        martin.petersen@...cle.com,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        security@...nel.org
Subject: Re: [PATCH v4] bsg: mitigate read/write abuse, block uaccess in release

On Mon, Jul 16, 2018 at 6:55 PM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> On Mon, Jul 16, 2018 at 9:52 AM Jann Horn <jannh@...gle.com> wrote:
> >
> > But bsg doesn't just do it on ->write(), also on ->read() and ->release().
>
> I think Jens already applied Christoph's patch to just remove the bsg
> read/write entirely into the 4.19 tree.

I thought Christoph wanted this one for stable. Maybe I misunderstood.