From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ferruh Yigit <ferruh.yigit@intel.com>
Subject: [PATCH 3/3] vhost: fix possible out of bound access
Date: Sun, 28 Oct 2018 01:08:46 +0000
Message-ID: <20181028010846.81730-3-ferruh.yigit@intel.com>
References: <20181028010846.81730-1-ferruh.yigit@intel.com>
Cc: dev@dpdk.org,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	stable@dpdk.org
To: Maxime Coquelin <maxime.coquelin@redhat.com>,
 Tiwei Bie <tiwei.bie@intel.com>, Zhihong Wang <zhihong.wang@intel.com>
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Fixes: d7280c9fffcb ("vhost: support selective datapath")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 lib/librte_vhost/vdpa.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/librte_vhost/vdpa.c b/lib/librte_vhost/vdpa.c
index c2c5dff1d..e7d849ee0 100644
--- a/lib/librte_vhost/vdpa.c
+++ b/lib/librte_vhost/vdpa.c
@@ -63,6 +63,9 @@ rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
 			break;
 	}
 
+	if (i == MAX_VHOST_DEVICE)
+		return -1;
+
 	sprintf(device_name, "vdpa-dev-%d", i);
 	dev = rte_zmalloc(device_name, sizeof(struct rte_vdpa_device),
 			RTE_CACHE_LINE_SIZE);
-- 
2.17.2