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From: Christoph Hellwig <hch@infradead.org>
To: Jann Horn <jannh@google.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	axboe@kernel.dk, dgilbert@interlog.com,
	Al Viro <viro@zeniv.linux.org.uk>,
	fujita.tomonori@lab.ntt.co.jp, jejb@linux.vnet.ibm.com,
	martin.petersen@oracle.com, linux-block@vger.kernel.org,
	linux-scsi@vger.kernel.org,
	kernel list <linux-kernel@vger.kernel.org>,
	Kernel Hardening <kernel-hardening@lists.openwall.com>,
	security@kernel.org,
	Alexander Nezhinsky <alexandern@mellanox.com>,
	Nicholas Bellinger <nab@linux-iscsi.org>,
	stgt@vger.kernel.org
Subject: Re: [PATCH] sg, bsg: mitigate read/write abuse, block uaccess in release
Date: Thu, 21 Jun 2018 06:03:27 -0700	[thread overview]
Message-ID: <20180621130327.GB24925@infradead.org> (raw)
In-Reply-To: <CAG48ez3BWeZkW5XG814K4o7p0KWXVm9Gpzh2rTthNei=4fhH-A@mail.gmail.com>

On Thu, Jun 21, 2018 at 02:51:16PM +0200, Jann Horn wrote:
> In the package https://packages.debian.org/stretch/tgt:
>   https://sources.debian.org/src/tgt/1:1.0.73-1/usr/bs_sg.c/?hl=131#L131
>   https://sources.debian.org/src/tgt/1:1.0.73-1/usr/bs_sg.c/?hl=236#L236

This is for real, although it is an optional case in an optional plug
in, so I'm not sure if any one actually uses bsg read/write with it
for real.

The usual aspects added. (the question is if bsg read/write support
is actually used in real life or can be removed)

> In the package https://packages.debian.org/stretch/sg3-utils:
>   https://sources.debian.org/src/sg3-utils/1.42-2/examples/bsg_queue_tst.c/?hl=60#L60

This is just example code.

  reply	other threads:[~2018-06-21 13:03 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-15 15:23 Jann Horn
2018-06-15 16:40 ` Al Viro
2018-06-15 16:44   ` Jann Horn
2018-06-15 16:53     ` Al Viro
2018-06-15 17:10       ` Al Viro
2018-06-15 17:13         ` Jann Horn
2018-06-15 20:47   ` Douglas Gilbert
2018-06-18 15:26     ` Benjamin Block
2018-06-18 15:37     ` Jens Axboe
2018-06-18 16:16       ` Al Viro
2018-06-18 16:23         ` Jens Axboe
2018-06-21 12:34       ` Christoph Hellwig
2018-06-21 12:51         ` Jann Horn
2018-06-21 13:03           ` Christoph Hellwig [this message]
2018-06-21 14:07         ` Jens Axboe
2018-07-08 14:58           ` Christoph Hellwig
2018-07-10 20:53             ` Jann Horn
2018-07-11  6:33               ` Christoph Hellwig
2018-06-15 16:49 ` Al Viro
2018-06-15 16:58   ` Jann Horn
2018-06-15 17:02     ` Jann Horn
2018-06-21 12:40 ` Christoph Hellwig
2018-06-21 12:54   ` Jann Horn

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