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From: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
To: <dev@dpdk.org>
Cc: Raslan Darawsheh <rasland@nvidia.com>, <xuemingl@nvidia.com>,
	Matan Azrad <matan@nvidia.com>,
	Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Subject: [PATCH] net/mlx5: fix segfault on close after failed start
Date: Tue, 23 Nov 2021 22:22:27 +0200
Message-ID: <20211123202227.3318001-1-dkozlyuk@nvidia.com> (raw)

If mlx5_rxq_start() failed and rxq_ctrl was not initialized,
mlx5_rxq_obj_verify() would segfaul 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")
Cc: xuemingl@nvidia.com

Signed-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
 drivers/net/mlx5/mlx5_rxq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 480f4f9f07..dd15e158b4 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;
-- 
2.25.1


             reply	other threads:[~2021-11-23 20:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-23 20:22 Dmitry Kozlyuk [this message]
2021-11-23 22:39 ` Raslan Darawsheh

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