linux-kernel - [PATCH 3.19.y-ckt 53/54] cxgbi: fix uninitialized flowi6

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Date:	Mon,  9 May 2016 17:05:12 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Jiri Benc <jbenc@...hat.com>,
	"David S . Miller" <davem@...emloft.net>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 53/54] cxgbi: fix uninitialized flowi6

3.19.8-ckt21 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Jiri Benc <jbenc@...hat.com>

commit 3d6d30d60abb19ba9a20e53ce65b18a9c148fcd1 upstream.

ip6_route_output looks into different fields in the passed flowi6 structure,
yet cxgbi passes garbage in nearly all those fields. Zero the structure out
first.

Fixes: fc8d0590d9142 ("libcxgbi: Add ipv6 api to driver")
Signed-off-by: Jiri Benc <jbenc@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/scsi/cxgbi/libcxgbi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index eb58afc..513c24d 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -684,6 +684,7 @@ static struct rt6_info *find_route_ipv6(const struct in6_addr *saddr,
 {
 	struct flowi6 fl;
 
+	memset(&fl, 0, sizeof(fl));
 	if (saddr)
 		memcpy(&fl.saddr, saddr, sizeof(struct in6_addr));
 	if (daddr)
-- 
2.7.4