[PATCH] net/mlx5: fix the profile check of meter mark

[PATCH] net/mlx5: fix the profile check of meter mark

[Bing Zhao]

When creating a meter_mark action, the profile should be specified.
Or else there would be a crash if the pointer to the profile was not
set properly:
  1. creating an action template with only action mask set and using
     this template to create a table
  2. creating a flow rule without setting the profile if the action
     of meter_mark is not fixed

The check should be done inside the action allocation and an error
needs to be returned immediately.

Fixes: 48fbb0e93d06 ("net/mlx5: support flow meter mark indirect action with HWS")
Cc: akozyrev@nvidia.com
Cc: stable@dpdk.org

Signed-off-by: Bing Zhao <bingz@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow_hw.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_flow_hw.c b/drivers/net/mlx5/mlx5_flow_hw.c
index b5137a822a..c64b260fea 100644
--- a/drivers/net/mlx5/mlx5_flow_hw.c
+++ b/drivers/net/mlx5/mlx5_flow_hw.c
@@ -1325,6 +1325,8 @@ flow_hw_meter_mark_alloc(struct rte_eth_dev *dev, uint32_t queue,
 	struct mlx5_flow_meter_info *fm;
 	uint32_t mtr_id;
 
+	if (meter_mark->profile == NULL)
+		return NULL;
 	aso_mtr = mlx5_ipool_malloc(priv->hws_mpool->idx_pool, &mtr_id);
 	if (!aso_mtr)
 		return NULL;
-- 
2.34.1

RE: [PATCH] net/mlx5: fix the profile check of meter mark

[Raslan Darawsheh]

Hi,

> -----Original Message-----
> From: Bing Zhao <bingz@nvidia.com>
> Sent: Friday, June 30, 2023 3:45 PM
> To: Matan Azrad <matan@nvidia.com>; Slava Ovsiienko
> <viacheslavo@nvidia.com>; Ori Kam <orika@nvidia.com>; Suanming Mou
> <suanmingm@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>
> Cc: dev@dpdk.org; Alexander Kozyrev <akozyrev@nvidia.com>;
> stable@dpdk.org
> Subject: [PATCH] net/mlx5: fix the profile check of meter mark
> 
> When creating a meter_mark action, the profile should be specified.
> Or else there would be a crash if the pointer to the profile was not set
> properly:
>   1. creating an action template with only action mask set and using
>      this template to create a table
>   2. creating a flow rule without setting the profile if the action
>      of meter_mark is not fixed
> 
> The check should be done inside the action allocation and an error needs to be
> returned immediately.
> 
> Fixes: 48fbb0e93d06 ("net/mlx5: support flow meter mark indirect action
> with HWS")
> Cc: akozyrev@nvidia.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Bing Zhao <bingz@nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh