[PATCH 5.14 083/172] RDMA/irdma: Validate number of CQ entries on create CQ
From: Greg Kroah-Hartman
Date: Mon Oct 04 2021 - 09:34:20 EST
From: Sindhu Devale <sindhu.devale@xxxxxxxxx>
[ Upstream commit f4475f249445b3c1fb99919b0514a075b6d6b3d4 ]
Add lower bound check for CQ entries at creation time.
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Link: https://lore.kernel.org/r/20210916191222.824-3-shiraz.saleem@xxxxxxxxx
Signed-off-by: Sindhu Devale <sindhu.devale@xxxxxxxxx>
Signed-off-by: Shiraz Saleem <shiraz.saleem@xxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/infiniband/hw/irdma/verbs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c
index 6107f37321d2..6c3d28f744cb 100644
--- a/drivers/infiniband/hw/irdma/verbs.c
+++ b/drivers/infiniband/hw/irdma/verbs.c
@@ -2040,7 +2040,7 @@ static int irdma_create_cq(struct ib_cq *ibcq,
/* Kmode allocations */
int rsize;
- if (entries > rf->max_cqe) {
+ if (entries < 1 || entries > rf->max_cqe) {
err_code = -EINVAL;
goto cq_free_rsrc;
}
--
2.33.0