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* [PATCH for-rc] RDMA/hns: Validate the pkey index
@ 2021-11-17 11:10 Kamal Heib
  2021-11-17 11:45 ` Haakon Bugge
  0 siblings, 1 reply; 3+ messages in thread
From: Kamal Heib @ 2021-11-17 11:10 UTC (permalink / raw)
  To: linux-rdma
  Cc: Wenpeng Liang, Weihang Li, Doug Ledford, Jason Gunthorpe,
	Kamal Heib

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

Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Signed-off-by: Kamal Heib <kamalheib1@gmail.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 4194b626f3c6..8233bec053ee 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;
-- 
2.31.1


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2021-11-17 11:10 [PATCH for-rc] RDMA/hns: Validate the pkey index Kamal Heib
2021-11-17 11:45 ` Haakon Bugge
2021-11-17 14:50   ` Kamal Heib

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