Commit 852f447c authored Nov 17, 2021 by Kamal Heib Committed by Greg Kroah-Hartman Jan 27, 2022

RDMA/hns: Validate the pkey index

[ Upstream commit 2a67fcfa0db6b4075515bd23497750849b88850f ]

Before query pkey, make sure that the queried index is valid.

Fixes: 9a443537 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 9927848b

drivers/infiniband/hw/hns/hns_roce_main.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -279,6 +279,9 @@ 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;