[dpdk-dev] [PATCH] net/ixgbe: fix mirror rule index overflow

[Qi Zhang]

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

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

Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 194058f..e829266 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));
 
-- 
2.9.4