6.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peiyang Wang <wangpeiyang1@xxxxxxxxxx>
[ Upstream commit 86db7bfb06704ef17340eeae71c832f21cfce35c ]
When query reg inf of SSU, it loops tnl_num times. However, tnl_num comes
from hardware and the length of array is a fixed value. To void array out
of bound, make sure the loop time is not greater than the length of array
Signed-off-by: Peiyang Wang <wangpeiyang1@xxxxxxxxxx>
Signed-off-by: Jijie Shao <shaojijie@xxxxxxxxxx>
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
index e132c2f09560..cc7f46c0b35f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
@@ -1598,8 +1598,7 @@ static void hclge_query_reg_info_of_ssu(struct hclge_dev *hdev)
{
u32 loop_para[HCLGE_MOD_MSG_PARA_ARRAY_MAX_SIZE] = {0};
struct hclge_mod_reg_common_msg msg;
- u8 i, j, num;
- u32 loop_time;
+ u8 i, j, num, loop_time;
num = ARRAY_SIZE(hclge_ssu_reg_common_msg);
for (i = 0; i < num; i++) {
@@ -1609,7 +1608,8 @@ static void hclge_query_reg_info_of_ssu(struct hclge_dev *hdev)
loop_time = 1;
loop_para[0] = 0;
if (msg.need_para) {
- loop_time = hdev->ae_dev->dev_specs.tnl_num;
+ loop_time = min(hdev->ae_dev->dev_specs.tnl_num,
+ HCLGE_MOD_MSG_PARA_ARRAY_MAX_SIZE);
for (j = 0; j < loop_time; j++)
loop_para[j] = j + 1;
}
--
2.43.0
