From: Kamal Heib kamalheib1@gmail.com
mainline inclusion from mainline-v5.16-rc2 commit 2a67fcfa0db6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4QOTS CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/commit/?id=2a6...
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Before query pkey, make sure that the queried index is valid.
Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver") Link: https://lore.kernel.org/r/20211117145954.123893-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib kamalheib1@gmail.com Signed-off-by: Jason Gunthorpe jgg@nvidia.com sigend-off-by: Guofeng Yue yueguofeng@hisilicon.com
Reviewed-by: Yangyang Li liyangyang20@huawei.com Acked-by: Xie XiuQi xiexiuqi@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/infiniband/hw/hns/hns_roce_main.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index 8946aa8a1f3c..8aa0af069042 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -266,6 +266,9 @@ static enum rdma_link_layer hns_roce_get_link_layer(struct ib_device *device, static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index, u16 *pkey) { + if (index > 0) + return -EINVAL; + *pkey = PKEY_ID;
return 0;