linux-kernel - [PATCH 5.8 47/56] net/mlx5e: Fix memory leak of tunnel info when rule under multipath not ready

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Date:   Fri, 25 Sep 2020 14:48:37 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jianbo Liu <jianbol@...lanox.com>,
        Roi Dayan <roid@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [PATCH 5.8 47/56] net/mlx5e: Fix memory leak of tunnel info when rule under multipath not ready

From: Jianbo Liu <jianbol@...lanox.com>

[ Upstream commit 12a240a41427d37b5e70570700704e84c827452f ]

When deleting vxlan flow rule under multipath, tun_info in parse_attr is
not freed when the rule is not ready.

Fixes: ef06c9ee8933 ("net/mlx5e: Allow one failure when offloading tc encap rules under multipath")
Signed-off-by: Jianbo Liu <jianbol@...lanox.com>
Reviewed-by: Roi Dayan <roid@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1399,11 +1399,8 @@ static void mlx5e_tc_del_fdb_flow(struct
 
 	mlx5e_put_flow_tunnel_id(flow);
 
-	if (flow_flag_test(flow, NOT_READY)) {
+	if (flow_flag_test(flow, NOT_READY))
 		remove_unready_flow(flow);
-		kvfree(attr->parse_attr);
-		return;
-	}
 
 	if (mlx5e_is_offloaded_flow(flow)) {
 		if (flow_flag_test(flow, SLOW))