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Message-Id: <20220124184114.008408143@linuxfoundation.org>
Date: Mon, 24 Jan 2022 19:38:16 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Kamal Heib <kamalheib1@...il.com>,
Jason Gunthorpe <jgg@...dia.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 379/846] RDMA/hns: Validate the pkey index
From: Kamal Heib <kamalheib1@...il.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@...il.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
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 5d39bd08582af..6012340e6d69e 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -269,6 +269,9 @@ 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;
--
2.34.1
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