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From: Saeed Mahameed <saeed@kernel•org>
To: "David S. Miller" <davem@davemloft•net>,
	Jakub Kicinski <kuba@kernel•org>, Paolo Abeni <pabeni@redhat•com>,
	Eric Dumazet <edumazet@google•com>
Cc: Saeed Mahameed <saeedm@nvidia•com>,
	netdev@vger•kernel.org, Dan Carpenter <dan.carpenter@oracle•com>,
	Tariq Toukan <tariqt@nvidia•com>
Subject: [net 11/13] net/mlx5e: kTLS, Use _safe() iterator in mlx5e_tls_priv_tx_list_cleanup()
Date: Mon, 22 Aug 2022 12:59:15 -0700	[thread overview]
Message-ID: <20220822195917.216025-12-saeed@kernel.org> (raw)
In-Reply-To: <20220822195917.216025-1-saeed@kernel.org>

From: Dan Carpenter <dan.carpenter@oracle•com>

Use the list_for_each_entry_safe() macro to prevent dereferencing "obj"
after it has been freed.

Fixes: c4dfe704f53f ("net/mlx5e: kTLS, Recycle objects of device-offloaded TLS TX connections")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle•com>
Reviewed-by: Tariq Toukan <tariqt@nvidia•com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia•com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
index 0aef69527226..3a1f76eac542 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
@@ -246,7 +246,7 @@ static void mlx5e_tls_priv_tx_cleanup(struct mlx5e_ktls_offload_context_tx *priv
 static void mlx5e_tls_priv_tx_list_cleanup(struct mlx5_core_dev *mdev,
 					   struct list_head *list, int size)
 {
-	struct mlx5e_ktls_offload_context_tx *obj;
+	struct mlx5e_ktls_offload_context_tx *obj, *n;
 	struct mlx5e_async_ctx *bulk_async;
 	int i;
 
@@ -255,7 +255,7 @@ static void mlx5e_tls_priv_tx_list_cleanup(struct mlx5_core_dev *mdev,
 		return;
 
 	i = 0;
-	list_for_each_entry(obj, list, list_node) {
+	list_for_each_entry_safe(obj, n, list, list_node) {
 		mlx5e_tls_priv_tx_cleanup(obj, &bulk_async[i]);
 		i++;
 	}
-- 
2.37.1


  parent reply	other threads:[~2022-08-22 20:00 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-22 19:59 [pull request][net 00/13] mlx5 fixes 2022-08-22 Saeed Mahameed
2022-08-22 19:59 ` [net 01/13] net/mlx5e: Properly disable vlan strip on non-UL reps Saeed Mahameed
2022-08-24  1:00   ` patchwork-bot+netdevbpf
2022-08-22 19:59 ` [net 02/13] net/mlx5: LAG, fix logic over MLX5_LAG_FLAG_NDEVS_READY Saeed Mahameed
2022-08-22 19:59 ` [net 03/13] net/mlx5: Eswitch, Fix forwarding decision to uplink Saeed Mahameed
2022-08-22 19:59 ` [net 04/13] net/mlx5: Disable irq when locking lag_lock Saeed Mahameed
2022-08-22 19:59 ` [net 05/13] net/mlx5: Fix cmd error logging for manage pages cmd Saeed Mahameed
2022-08-22 19:59 ` [net 06/13] net/mlx5: Avoid false positive lockdep warning by adding lock_class_key Saeed Mahameed
2022-08-22 19:59 ` [net 07/13] net/mlx5e: Fix wrong application of the LRO state Saeed Mahameed
2022-08-22 19:59 ` [net 08/13] net/mlx5e: TC, Add missing policer validation Saeed Mahameed
2022-08-22 19:59 ` [net 09/13] net/mlx5e: Fix wrong tc flag used when set hw-tc-offload off Saeed Mahameed
2022-08-22 19:59 ` [net 10/13] net/mlx5: unlock on error path in esw_vfs_changed_event_handler() Saeed Mahameed
2022-08-22 19:59 ` Saeed Mahameed [this message]
2022-08-22 19:59 ` [net 12/13] net/mlx5e: Fix use after free in mlx5e_fs_init() Saeed Mahameed
2022-08-22 19:59 ` [net 13/13] net/mlx5: Unlock on error in mlx5_sriov_enable() Saeed Mahameed

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