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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>,
	Tiwei Bie <tiwei.bie@intel.com>,
	Zhihong Wang <zhihong.wang@intel.com>
Cc: dev@dpdk.org, Ferruh Yigit <ferruh.yigit@intel.com>, stable@dpdk.org
Subject: [PATCH 3/3] vhost: fix possible out of bound access
Date: Sun, 28 Oct 2018 01:08:46 +0000	[thread overview]
Message-ID: <20181028010846.81730-3-ferruh.yigit@intel.com> (raw)
In-Reply-To: <20181028010846.81730-1-ferruh.yigit@intel.com>

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

  parent reply	other threads:[~2018-10-28  1:08 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-28  1:08 [PATCH 1/3] lib: fix shifting 32 bits signed variable 31 times Ferruh Yigit
2018-10-28  1:08 ` [PATCH 2/3] service: fix possible NULL access Ferruh Yigit
2018-10-29 16:12   ` Van Haaren, Harry
2018-10-28  1:08 ` Ferruh Yigit [this message]
2018-10-31 17:28   ` [PATCH 3/3] vhost: fix possible out of bound access Maxime Coquelin
2018-11-06  0:26 ` [PATCH 1/3] lib: fix shifting 32 bits signed variable 31 times Thomas Monjalon

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