From e7739a60712a041516f74c8917a0b3e5f1e4f01e Mon Sep 17 00:00:00 2001
From: Eli Britstein <elibr@mellanox.com>
Date: Sun, 12 May 2019 11:50:58 +0000
Subject: [PATCH] net/mlx5e: Fix possible modify header actions memory leak
The cited commit could disable the modify header flag, but did not free
the allocated memory for the modify header actions. Fix it.
Fixes: 27c11b6b844cd ("net/mlx5e: Do not rewrite fields with the same match")
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 4722ac70f0a94..31cd02f114993 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2567,8 +2567,10 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv,
/* in case all pedit actions are skipped, remove the MOD_HDR
* flag.
*/
- if (parse_attr->num_mod_hdr_actions == 0)
+ if (parse_attr->num_mod_hdr_actions == 0) {
action &= ~MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
+ kfree(parse_attr->mod_hdr_actions);
+ }
}
attr->action = action;
@@ -3005,6 +3007,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
*/
if (parse_attr->num_mod_hdr_actions == 0) {
action &= ~MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
+ kfree(parse_attr->mod_hdr_actions);
if (!((action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP) ||
(action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH)))
attr->split_count = 0;
--
2.30.2