linux-kernel - Re: [PATCH 4.4 022/105] libata: zpodd: small read overflow in eject

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Date:   Fri, 20 Jul 2018 15:20:12 +0100
From:   Ben Hutchings <ben.hutchings@...ethink.co.uk>
To:     Dan Carpenter <dan.carpenter@...cle.com>, Tejun Heo <tj@...nel.org>
Cc:     stable@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4.4 022/105] libata: zpodd: small read overflow in
 eject_tray()

On Sun, 2018-07-01 at 18:01 +0200, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Dan Carpenter <dan.carpenter@...cle.com>
> 
> commit 18c9a99bce2a57dfd7e881658703b5d7469cc7b9 upstream.
> 
> We read from the cdb[] buffer in ata_exec_internal_sg().  It has to be
> ATAPI_CDB_LEN (16) bytes long, but this buffer is only 12 bytes.

zpodd_get_mech_type() appears to have the same problem.

Ben.

> Fixes: 213342053db5 ("libata: handle power transition of ODD")
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: stable@...r.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
[...]

-- 
Ben Hutchings, Software Developer                         Codethink Ltd
https://www.codethink.co.uk/                 Dale House, 35 Dale Street
                                     Manchester, M1 2HF, United Kingdom