net/mlx5: Check dr mask size against mlx5_match_param size

This is to allow passing misc4 match param from userspace when
function like ib_flow_matcher_create is called.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Muhammad Sammar 2020-11-20 15:03:26 -08:00 committed by Saeed Mahameed
parent 3873063088
commit 699d531f55
3 changed files with 3 additions and 3 deletions

View File

@ -630,7 +630,7 @@ static int dr_matcher_init(struct mlx5dr_matcher *matcher,
}
if (mask) {
if (mask->match_sz > sizeof(struct mlx5dr_match_param)) {
if (mask->match_sz > DR_SZ_MATCH_PARAM) {
mlx5dr_err(dmn, "Invalid match size attribute\n");
return -EINVAL;
}

View File

@ -874,8 +874,7 @@ static bool dr_rule_verify(struct mlx5dr_matcher *matcher,
u32 s_idx, e_idx;
if (!value_size ||
(value_size > sizeof(struct mlx5dr_match_param) ||
(value_size % sizeof(u32)))) {
(value_size > DR_SZ_MATCH_PARAM || (value_size % sizeof(u32)))) {
mlx5dr_err(matcher->tbl->dmn, "Rule parameters length is incorrect\n");
return false;
}

View File

@ -17,6 +17,7 @@
#define WIRE_PORT 0xFFFF
#define DR_STE_SVLAN 0x1
#define DR_STE_CVLAN 0x2
#define DR_SZ_MATCH_PARAM (MLX5_ST_SZ_DW_MATCH_PARAM * 4)
#define mlx5dr_err(dmn, arg...) mlx5_core_err((dmn)->mdev, ##arg)
#define mlx5dr_info(dmn, arg...) mlx5_core_info((dmn)->mdev, ##arg)