linux-kernel - Re: [PATCH] fix: lpfc_send_rscn_event sends bigger buffer size

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Message-ID: <55DDB6B9.4030003@suse.de>
Date:	Wed, 26 Aug 2015 14:53:13 +0200
From:	Hannes Reinecke <hare@...e.de>
To:	Ales Novak <alnovak@...e.cz>,
	James Smart <james.smart@...gotech.com>,
	Dick Kennedy <dick.kennedy@...gotech.com>,
	"James E.J. Bottomley" <JBottomley@...n.com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fix: lpfc_send_rscn_event sends bigger buffer size

On 08/20/2015 01:35 PM, Ales Novak wrote:
> lpfc_send_rscn_event() allocates data for sizeof(struct
> lpfc_rscn_event_header) + payload_len, but claims that the data has size
> of sizeof(struct lpfc_els_event_header) + payload_len. That leads to
> buffer overruns.
> 
> Signed-off-by: Ales Novak <alnovak@...e.cz>
> ---
>  drivers/scsi/lpfc/lpfc_els.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
> index 36bf58b..136928e 100644
> --- a/drivers/scsi/lpfc/lpfc_els.c
> +++ b/drivers/scsi/lpfc/lpfc_els.c
> @@ -5444,7 +5444,7 @@ lpfc_send_rscn_event(struct lpfc_vport *vport,
>  
>  	fc_host_post_vendor_event(shost,
>  		fc_get_event_number(),
> -		sizeof(struct lpfc_els_event_header) + payload_len,
> +		sizeof(struct lpfc_rscn_event_header) + payload_len,
>  		(char *)rscn_event_data,
>  		LPFC_NL_VENDOR_ID);
>  
> 
Reviewed-by: Hannes Reinecke <hare@...e.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@...e.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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