From: Qi Zhang <qi.z.zhang@intel.com>
Date: Fri, 21 Jul 2017 08:56:37 +0000 (+0800)
Subject: net/ixgbe: fix mirror rule index overflow
X-Git-Tag: spdx-start~2309
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=9b2df1083aab703e73f6d76e8f41afacb463afe9;p=dpdk.git

net/ixgbe: fix mirror rule index overflow

Mirror rule id should not exceed the boundary defined by
IXGBE_MAX_MIRROR_RULES.

Fixes: fe3a45fd4104 ("ixgbe: add VMDq support")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index e436dcafe7..5dc007f000 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -5461,6 +5461,9 @@ ixgbe_mirror_rule_reset(struct rte_eth_dev *dev, uint8_t rule_id)
 	if (ixgbe_vt_check(hw) < 0)
 		return -ENOTSUP;
 
+	if (rule_id >= IXGBE_MAX_MIRROR_RULES)
+		return -EINVAL;
+
 	memset(&mr_info->mr_conf[rule_id], 0,
 	       sizeof(struct rte_eth_mirror_conf));