linux-kernel - [PATCH 3.11 077/198] RDMA/cxgb4: Fix four byte info leak in c4iw_create

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Date:	Thu,  3 Jul 2014 10:18:40 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Dan Carpenter <dan.carpenter@...cle.com>,
	Roland Dreier <roland@...estorage.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.11 077/198] RDMA/cxgb4: Fix four byte info leak in c4iw_create_cq()

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

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

From: Dan Carpenter <dan.carpenter@...cle.com>

commit e24a72a3302a638d4c6e77f0b40c45cc61c3f089 upstream.

There is a four byte hole at the end of the "uresp" struct after the
->qid_mask member.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Roland Dreier <roland@...estorage.com>
[ luis: 3.11.y prereq for:
  b6f04d3d2145 "RDMA/cxgb4: Add missing padding at end of struct c4iw_create_cq_resp" ]
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/infiniband/hw/cxgb4/cq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index 0f1607c8325a..da9364ea03dd 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -833,6 +833,7 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries,
 		if (!mm2)
 			goto err4;
 
+		memset(&uresp, 0, sizeof(uresp));
 		uresp.qid_mask = rhp->rdev.cqmask;
 		uresp.cqid = chp->cq.cqid;
 		uresp.size = chp->cq.size;
-- 
1.9.1

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