Commit 04f25edb authored by Yunsheng Lin's avatar Yunsheng Lin Committed by David S. Miller

net: hns3: add some error checking in hclge_tm module

When hdev->tx_sch_mode is HCLGE_FLAG_VNET_BASE_SCH_MODE, the
hclge_tm_schd_mode_vnet_base_cfg calls hclge_tm_pri_schd_mode_cfg
with vport->vport_id as pri_id, which is used as index for
hdev->tm_info.tc_info, it will cause out of bound access issue
if vport_id is equal to or larger than HNAE3_MAX_TC.

Also hardware only support maximum speed of HCLGE_ETHER_MAX_RATE.

So this patch adds two checks for above cases.

Fixes: 84844054 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: default avatarYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: default avatarPeng Li <lipeng321@huawei.com>
Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9e15be90
......@@ -58,7 +58,8 @@ static int hclge_shaper_para_calc(u32 ir, u8 shaper_level,
u32 tick;
/* Calc tick */
if (shaper_level >= HCLGE_SHAPER_LVL_CNT)
if (shaper_level >= HCLGE_SHAPER_LVL_CNT ||
ir > HCLGE_ETHER_MAX_RATE)
return -EINVAL;
tick = tick_array[shaper_level];
......@@ -1138,6 +1139,9 @@ static int hclge_tm_schd_mode_vnet_base_cfg(struct hclge_vport *vport)
int ret;
u8 i;
if (vport->vport_id >= HNAE3_MAX_TC)
return -EINVAL;
ret = hclge_tm_pri_schd_mode_cfg(hdev, vport->vport_id);
if (ret)
return ret;
......
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