netdev - [net 12/15] net/mlx5e: MACsec, fix add Rx security association (SA) rule memory leak

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Date:   Thu, 24 Nov 2022 00:10:37 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>,
        Emeel Hakim <ehakim@...dia.com>, Raed Salem <raeds@...dia.com>
Subject: [net 12/15] net/mlx5e: MACsec, fix add Rx security association (SA) rule memory leak

From: Emeel Hakim <ehakim@...dia.com>

Currently MACsec's add Rx SA flow steering (fs) rule routine
uses a spec object which is dynamically allocated and do
not free it upon leaving. The above led to a memory leak.

Fix by freeing dynamically allocated objects.

Fixes: 3b20949cb21b ("net/mlx5e: Add MACsec RX steering rules")
Signed-off-by: Emeel Hakim <ehakim@...dia.com>
Reviewed-by: Raed Salem <raeds@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec_fs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec_fs.c
index f87a1c4021bc..5b658a5588c6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec_fs.c
@@ -1209,6 +1209,7 @@ macsec_fs_rx_add_rule(struct mlx5e_macsec_fs *macsec_fs,
 		rx_rule->rule[1] = rule;
 	}
 
+	kvfree(spec);
 	return macsec_rule;
 
 err:
-- 
2.38.1