From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, Dan Carpenter <dan.carpenter@oracle.com>,
Roi Dayan <roid@nvidia.com>, Saeed Mahameed <saeedm@nvidia.com>
Subject: [net-next 01/16] net/mlx5e: TC, Fix use after free in mlx5e_clone_flow_attr_for_post_act()
Date: Wed, 9 Mar 2022 13:37:40 -0800 [thread overview]
Message-ID: <20220309213755.610202-2-saeed@kernel.org> (raw)
In-Reply-To: <20220309213755.610202-1-saeed@kernel.org>
From: Dan Carpenter <dan.carpenter@oracle.com>
This returns freed memory leading to a use after free. It's supposed to
return NULL.
Fixes: 8300f225268b ("net/mlx5e: Create new flow attr for multi table actions")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 2 +-
1 file changed, 1 insertion(+), 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 40416e0a8bb1..e3fc15ae7bb1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3410,7 +3410,7 @@ mlx5e_clone_flow_attr_for_post_act(struct mlx5_flow_attr *attr,
if (!attr2 || !parse_attr) {
kvfree(parse_attr);
kfree(attr2);
- return attr2;
+ return NULL;
}
memcpy(attr2, attr, attr_sz);
--
2.35.1
next prev parent reply other threads:[~2022-03-09 21:38 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-09 21:37 [pull request][net-next 00/16] mlx5 updates 2022-03-09 Saeed Mahameed
2022-03-09 21:37 ` Saeed Mahameed [this message]
2022-03-10 22:50 ` [net-next 01/16] net/mlx5e: TC, Fix use after free in mlx5e_clone_flow_attr_for_post_act() patchwork-bot+netdevbpf
2022-03-09 21:37 ` [net-next 02/16] net/mlx5: Add command failures data to debugfs Saeed Mahameed
2022-03-09 21:37 ` [net-next 03/16] net/mlx5: Remove redundant notify fail on give pages Saeed Mahameed
2022-03-09 21:37 ` [net-next 04/16] net/mlx5: Remove redundant error " Saeed Mahameed
2022-03-09 21:37 ` [net-next 05/16] net/mlx5: Remove redundant error on reclaim pages Saeed Mahameed
2022-03-09 21:37 ` [net-next 06/16] net/mlx5: Change release_all_pages cap bit location Saeed Mahameed
2022-03-09 21:37 ` [net-next 07/16] net/mlx5: Move debugfs entries to separate struct Saeed Mahameed
2022-03-09 21:37 ` [net-next 08/16] net/mlx5: Add pages debugfs Saeed Mahameed
2022-03-09 21:37 ` [net-next 09/16] net/mlx5: Add debugfs counters for page commands failures Saeed Mahameed
2022-03-09 21:37 ` [net-next 10/16] net/mlx5: DR, Align mlx5dv_dr API vport action with FW behavior Saeed Mahameed
2022-03-09 21:37 ` [net-next 11/16] net/mlx5: DR, Add support for matching on Internet Header Length (IHL) Saeed Mahameed
2022-03-09 21:37 ` [net-next 12/16] net/mlx5: DR, Remove unneeded comments Saeed Mahameed
2022-03-09 21:37 ` [net-next 13/16] net/mlx5: DR, Fix handling of different actions on the same STE in STEv1 Saeed Mahameed
2022-03-09 21:37 ` [net-next 14/16] net/mlx5: DR, Rename action modify fields to reflect naming in HW spec Saeed Mahameed
2022-03-09 21:37 ` [net-next 15/16] net/mlx5: DR, Refactor ste_ctx handling for STE v0/1 Saeed Mahameed
2022-03-09 21:37 ` [net-next 16/16] net/mlx5: DR, Add support for ConnectX-7 steering Saeed Mahameed
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