linux-kernel - RE: [PATCH] scsi: aacraid: fix leak of data from stack back to userspace

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Message-ID: <423FD6710FB8FB4F8728F93591889F9A53045C92@avsrvexchmbx2.microsemi.net>
Date:   Tue, 13 Jun 2017 21:06:02 +0000
From:   Dave Carroll <david.carroll@...rosemi.com>
To:     Colin King <colin.king@...onical.com>,
        Raghava Aditya Renukunta 
        <RaghavaAditya.Renukunta@...rosemi.com>,
        dl-esc-Aacraid Linux Driver <aacraid@...rosemi.com>,
        "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
CC:     "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] scsi: aacraid: fix leak of data from stack back to
 userspace

> -----Original Message-----
> From: Colin King [mailto:colin.king@...onical.com]
> Sent: Monday, May 15, 2017 8:56 AM
> To: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@...rosemi.com>;
> dl-esc-Aacraid Linux Driver <aacraid@...rosemi.com>; James E . J . Bottomley
> <jejb@...ux.vnet.ibm.com>; Martin K . Petersen
> <martin.petersen@...cle.com>; linux-scsi@...r.kernel.org
> Cc: kernel-janitors@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: [PATCH] scsi: aacraid: fix leak of data from stack back to userspace
> 
> From: Colin Ian King <colin.king@...onical.com>
> 
> The fields sense_data_size and sense_data are unitialized garbage from the
> stack and are being copied back to userspace.  Fix this leak of stack information
> by ensuring they are zero'd.
> 
> Detected by CoverityScan, CID#1435473 ("Uninitialized scalar variable")
> 
> Fixes: 423400e64d377 ("scsi: aacraid: Include HBA direct interface")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/scsi/aacraid/commctrl.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
Acked-by: Dave Carroll <david.carroll@...rosemi.com>