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

From: Leon Romanovsky <leon@kernel.org>
To: "David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Cc: Patrisious Haddad <phaddad@nvidia.com>,
	Eric Dumazet <edumazet@google.com>,
	linux-rdma@vger.kernel.org, Mark Zhang <markzhang@nvidia.com>,
	netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>,
	Raed Salem <raeds@nvidia.com>, Saeed Mahameed <saeedm@nvidia.com>
Subject: [PATCH net-next] net/mlx5: Fix memory leak in IPsec RoCE creation
Date: Sun, 19 Feb 2023 14:59:57 +0200	[thread overview]
Message-ID: <1b414ea3a92aa0d07b6261cf641445f27bc619d8.1676811549.git.leon@kernel.org> (raw)

From: Patrisious Haddad <phaddad@nvidia.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@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 .../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..edc6798b359e 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 fail_table;
 	}
 
 	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 fail_group;
 	}
 	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 fail_rule;
 	}
 
+	kvfree(in);
 	return 0;
 
-rule_fail:
+fail_rule:
 	mlx5_destroy_flow_group(roce->g);
-fail:
+fail_group:
 	mlx5_destroy_flow_table(ft);
+fail_table:
+	kvfree(in);
 	return err;
 }
 
-- 
2.39.2

