[dpdk-stable] patch 'net/tap: fix possibly unterminated string' has been queued to stable release 17.02.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 17.02.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/28/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From 74cca4c16b0763666fd08d09bf7a2bda30a81037 Mon Sep 17 00:00:00 2001
From: Keith Wiles <keith.wiles at intel.com>
Date: Fri, 17 Feb 2017 09:43:04 -0600
Subject: [PATCH] net/tap: fix possibly unterminated string

[ upstream commit 865787886101310954ddc35eb5c29b3ab7b9c055 ]

Calling strncpy with a maximum size argument of 16 bytes on destination
array "ifr.ifr_ifrn.ifrn_name" of size 16 bytes might leave the
destination string unterminated.

Coverity issue: 1407499
Fixes: 6b38b2725cdb ("net/tap: fix multi-queue support")

Signed-off-by: Keith Wiles <keith.wiles at intel.com>
---
 drivers/net/tap/rte_eth_tap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index efc4426..47a7060 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -129,7 +129,7 @@ tun_alloc(struct pmd_internals *pmd, uint16_t qid)
 	memset(&ifr, 0, sizeof(struct ifreq));
 
 	ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
-	strncpy(ifr.ifr_name, pmd->name, IFNAMSIZ);
+	snprintf(ifr.ifr_name, IFNAMSIZ, "%s", pmd->name);
 
 	RTE_LOG(DEBUG, PMD, "ifr_name '%s'\n", ifr.ifr_name);
 
@@ -297,7 +297,7 @@ tap_link_set_flags(struct pmd_internals *pmd, short flags, int add)
 		return -1;
 	}
 	memset(&ifr, 0, sizeof(ifr));
-	strncpy(ifr.ifr_name, pmd->name, IFNAMSIZ);
+	snprintf(ifr.ifr_name, IFNAMSIZ, "%s", pmd->name);
 	err = ioctl(s, SIOCGIFFLAGS, &ifr);
 	if (err < 0) {
 		RTE_LOG(WARNING, PMD, "Unable to get %s device flags: %s\n",
-- 
1.9.0