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From: Manish Rangankar <mrangankar@marvell.com>
To: Kangjie Lu <kjlu@umn.edu>
Cc: "pakki001@umn.edu" <pakki001@umn.edu>,
	"QLogic-Storage-Upstream@qlogic.com" 
	<QLogic-Storage-Upstream@qlogic.com>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] scsi: qla4xxx: fix a potential NULL pointer dereference
Date: Mon, 25 Mar 2019 06:18:30 +0000	[thread overview]
Message-ID: <BYAPR18MB24857ABD5DDE4D62E35F9C6DD85E0@BYAPR18MB2485.namprd18.prod.outlook.com> (raw)
In-Reply-To: <20190314063100.12805-1-kjlu@umn.edu>

> -----Original Message-----
> From: linux-scsi-owner@vger.kernel.org <linux-scsi-
> owner@vger.kernel.org> On Behalf Of Kangjie Lu
> Sent: Thursday, March 14, 2019 12:01 PM
> To: kjlu@umn.edu
> Cc: pakki001@umn.edu; QLogic-Storage-Upstream@qlogic.com; James E.J.
> Bottomley <jejb@linux.ibm.com>; Martin K. Petersen
> <martin.petersen@oracle.com>; linux-scsi@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Subject: [PATCH] scsi: qla4xxx: fix a potential NULL pointer dereference
> 
> In case iscsi_lookup_endpoint fails, the fix returns -EINVAL to avoid NULL
> pointer dereference.
> 
> Signed-off-by: Kangjie Lu <kjlu@umn.edu>
> ---
>  drivers/scsi/qla4xxx/ql4_os.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
> index a77bfb224248..80289c885c07 100644
> --- a/drivers/scsi/qla4xxx/ql4_os.c
> +++ b/drivers/scsi/qla4xxx/ql4_os.c
> @@ -3203,6 +3203,8 @@ static int qla4xxx_conn_bind(struct
> iscsi_cls_session *cls_session,
>  	if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
>  		return -EINVAL;
>  	ep = iscsi_lookup_endpoint(transport_fd);
> +	if (!ep)
> +		return -EINVAL;
>  	conn = cls_conn->dd_data;
>  	qla_conn = conn->dd_data;
>  	qla_conn->qla_ep = ep->dd_data;
> --
> 2.17.1

Thanks
Acked-by: Manish Rangankar <mrangankar@marvell.com>


  parent reply	other threads:[~2019-03-25  6:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-14  6:30 [PATCH] scsi: qla4xxx: fix a potential NULL pointer dereference Kangjie Lu
2019-03-23 22:39 ` Aditya Pakki
2019-03-23 22:39   ` Aditya Pakki
2019-03-25  6:18 ` Manish Rangankar [this message]
2019-03-25  6:18   ` Manish Rangankar
2019-03-26  2:25 ` Martin K. Petersen

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