linux-kernel - [PATCH 3.16 030/127] qla2xxx: fix kernel NULL pointer access

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Message-Id: <20141028033422.234665359@linuxfoundation.org>
Date:	Tue, 28 Oct 2014 11:34:25 +0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Himanshu Madhani <himanshu.madhani@...gic.com>,
	Saurav Kashyap <saurav.kashyap@...gic.com>,
	Christoph Hellwig <hch@....de>
Subject: [PATCH 3.16 030/127] qla2xxx: fix kernel NULL pointer access

3.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Himanshu Madhani <himanshu.madhani@...gic.com>

commit 78c2106a50e067f7168ee8c0944baaeb0e988272 upstream.

This patch is to fix regression added by commit id
51a07f84649d2be206c4c2ad9a612956db0c2f8c.

When allocating memory for new session original patch does
not assign vha to op->vha resulting into NULL pointer
access during qlt_create_sess_from_atio().

Signed-off-by: Himanshu Madhani <himanshu.madhani@...gic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@...gic.com>
Signed-off-by: Christoph Hellwig <hch@....de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/qla2xxx/qla_target.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3277,6 +3277,7 @@ static int qlt_handle_cmd_for_atio(struc
 			return -ENOMEM;
 
 		memcpy(&op->atio, atio, sizeof(*atio));
+		op->vha = vha;
 		INIT_WORK(&op->work, qlt_create_sess_from_atio);
 		queue_work(qla_tgt_wq, &op->work);
 		return 0;


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