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Subject[PATCH 4.19 126/639] RDMA/qedr: Fix out of bounds index check in query pkey
Date
From: Gal Pressman <galpress@amazon.com>

[ Upstream commit dbe30dae487e1a232158c24b432d45281c2805b7 ]

The pkey table size is QEDR_ROCE_PKEY_TABLE_LEN, index should be tested
for >= QEDR_ROCE_PKEY_TABLE_LEN instead of > QEDR_ROCE_PKEY_TABLE_LEN.

Fixes: a7efd7773e31 ("qedr: Add support for PD,PKEY and CQ verbs")
Signed-off-by: Gal Pressman <galpress@amazon.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/qedr/verbs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 9167a1c40bcf5..8fd8b97348bfe 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -67,7 +67,7 @@ static inline int qedr_ib_copy_to_udata(struct ib_udata *udata, void *src,

int qedr_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
{
- if (index > QEDR_ROCE_PKEY_TABLE_LEN)
+ if (index >= QEDR_ROCE_PKEY_TABLE_LEN)
return -EINVAL;

*pkey = QEDR_ROCE_PKEY_DEFAULT;
--
2.20.1


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