From: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
Date: Tue, 23 Nov 2021 20:22:27 +0000 (+0200)
Subject: net/mlx5: fix crash on close after failed start
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=0ece5de3c4acb5a7c7ffa421538af89b86617d59

net/mlx5: fix crash on close after failed start

If mlx5_rxq_start() failed and rxq_ctrl was not initialized,
mlx5_rxq_obj_verify() would segfault in an attempt to dereference it.
Add a check that rxq_ctrl is not NULL before accessing its members.

Fixes: 09c2555303be ("net/mlx5: support shared Rx queue")

Signed-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 47dc24793b..191f1e483f 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1271,6 +1271,8 @@ mlx5_rxq_obj_verify(struct rte_eth_dev *dev)
 	struct mlx5_rxq_obj *rxq_obj;
 
 	LIST_FOREACH(rxq_obj, &priv->rxqsobj, next) {
+		if (rxq_obj->rxq_ctrl == NULL)
+			continue;
 		if (rxq_obj->rxq_ctrl->rxq.shared &&
 		    !LIST_EMPTY(&rxq_obj->rxq_ctrl->owners))
 			continue;