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| author | Yunsheng Lin <linyunsheng@huawei.com> | 2019-06-28 14:50:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-26 10:12:46 +0300 |
| commit | 56591adf10e9c2d121541b7ebc0452462896c812 (patch) | |
| tree | 6d3a0bbe2f8071edfc8ca6a979a1b3b4e3fc818c /drivers/net | |
| parent | a83680691e3e7c97d11cdfe342b20e227276c4ce (diff) | |
| download | linux-56591adf10e9c2d121541b7ebc0452462896c812.tar.xz | |
net: hns3: add some error checking in hclge_tm module
[ Upstream commit 04f25edb48c441fc278ecc154c270f16966cbb90 ]
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: 848440544b41 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c index a7bbb6d3091a..0d53062f7bb5 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c @@ -54,7 +54,8 @@ 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]; @@ -1124,6 +1125,9 @@ 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; |