diff mbox series

[5.16,0450/1039] RDMA/hns: Validate the pkey index

Message ID 20220124184140.421187760@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Jan. 24, 2022, 6:37 p.m. UTC 
From: Kamal Heib <kamalheib1@gmail.com>

[ Upstream commit 2a67fcfa0db6b4075515bd23497750849b88850f ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_main.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index 4194b626f3c65..8233bec053ee3 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -270,6 +270,9 @@  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, u32 port, u16 index,
 			       u16 *pkey)
 {
+	if (index > 0)
+		return -EINVAL;
+
 	*pkey = PKEY_ID;
 
 	return 0;