netdev - [PATCH net v1] net/mlx5: Fix memory leak in IPsec RoCE creation

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Message-Id: <a69739482cca7176d3a466f87bbf5af1250b09bb.1677056384.git.leon@kernel.org>
Date:   Wed, 22 Feb 2023 11:06:40 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     Patrisious Haddad <phaddad@...dia.com>,
        Eric Dumazet <edumazet@...gle.com>, linux-rdma@...r.kernel.org,
        Mark Zhang <markzhang@...dia.com>, netdev@...r.kernel.org,
        Paolo Abeni <pabeni@...hat.com>, Raed Salem <raeds@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [PATCH net v1] net/mlx5: Fix memory leak in IPsec RoCE creation

From: Patrisious Haddad <phaddad@...dia.com>

During IPsec RoCE TX creation a struct for the flow group creation is
allocated, but never freed. Free that struct once it is no longer in use.

Fixes: 22551e77e550 ("net/mlx5: Configure IPsec steering for egress RoCEv2 traffic")
Signed-off-by: Patrisious Haddad <phaddad@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
Changelog:
v1:
 * Changed target from net-next to net.
 * Replaced goto labels to mark what they do.
v0: https://lore.kernel.org/all/1b414ea3a92aa0d07b6261cf641445f27bc619d8.1676811549.git.leon@kernel.org
---
 .../ethernet/mellanox/mlx5/core/lib/ipsec_fs_roce.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/ipsec_fs_roce.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/ipsec_fs_roce.c
index 2c53589b765d..6e3f178d6f84 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/ipsec_fs_roce.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/ipsec_fs_roce.c
@@ -162,7 +162,7 @@ int mlx5_ipsec_fs_roce_tx_create(struct mlx5_core_dev *mdev,
 	if (IS_ERR(ft)) {
 		err = PTR_ERR(ft);
 		mlx5_core_err(mdev, "Fail to create RoCE IPsec tx ft err=%d\n", err);
-		return err;
+		goto free_in;
 	}
 
 	roce->ft = ft;
@@ -174,22 +174,25 @@ int mlx5_ipsec_fs_roce_tx_create(struct mlx5_core_dev *mdev,
 	if (IS_ERR(g)) {
 		err = PTR_ERR(g);
 		mlx5_core_err(mdev, "Fail to create RoCE IPsec tx group err=%d\n", err);
-		goto fail;
+		goto destroy_table;
 	}
 	roce->g = g;
 
 	err = ipsec_fs_roce_tx_rule_setup(mdev, roce, pol_ft);
 	if (err) {
 		mlx5_core_err(mdev, "Fail to create RoCE IPsec tx rules err=%d\n", err);
-		goto rule_fail;
+		goto destroy_group;
 	}
 
+	kvfree(in);
 	return 0;
 
-rule_fail:
+destroy_group:
 	mlx5_destroy_flow_group(roce->g);
-fail:
+destroy_table:
 	mlx5_destroy_flow_table(ft);
+free_in:
+	kvfree(in);
 	return err;
 }
 
-- 
2.39.2