diff options
| author | Yufeng Mo <moyufeng@huawei.com> | 2021-02-09 17:03:07 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-09 15:20:43 -0800 |
| commit | 532cfc0df1e4d68e74522ef4a0dcbf6ebbe68287 (patch) | |
| tree | 514fff9bbd472bb30699e30b8e2cd9d08115f1ca | |
| parent | 326334aad024a60f46dc5e7dbe1efe32da3ca66f (diff) | |
| download | dm-user-532cfc0df1e4d68e74522ef4a0dcbf6ebbe68287.tar.gz | |
net: hns3: add a check for index in hclge_get_rss_key()
The index is received from vf, if use it directly,
an out-of-bound issue may be caused, so add a check for
this index before using it in hclge_get_rss_key().
Fixes: a638b1d8cc87 ("net: hns3: fix get VF RSS issue")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c index ea2dea9902831c..ffb416e088a978 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c @@ -607,6 +607,17 @@ static void hclge_get_rss_key(struct hclge_vport *vport, index = mbx_req->msg.data[0]; + /* Check the query index of rss_hash_key from VF, make sure no + * more than the size of rss_hash_key. + */ + if (((index + 1) * HCLGE_RSS_MBX_RESP_LEN) > + sizeof(vport[0].rss_hash_key)) { + dev_warn(&hdev->pdev->dev, + "failed to get the rss hash key, the index(%u) invalid !\n", + index); + return; + } + memcpy(resp_msg->data, &hdev->vport[0].rss_hash_key[index * HCLGE_RSS_MBX_RESP_LEN], HCLGE_RSS_MBX_RESP_LEN); |