Commit 53a8b385 authored Nov 08, 2020 by Kamal Heib Committed by Greg Kroah-Hartman Dec 29, 2020

RDMA/cxgb4: Validate the number of CQEs

[ Upstream commit 6d8285e604e0221b67bd5db736921b7ddce37d00 ]

Before create CQ, make sure that the requested number of CQEs is in the
supported range.

Fixes: cfdda9d7 ("RDMA/cxgb4: Add driver for Chelsio T4 RNIC")
Link: https://lore.kernel.org/r/20201108132007.67537-1-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>

parent df79fd25

drivers/infiniband/hw/cxgb4/cq.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -893,6 +893,9 @@ struct ib_cq c4iw_create_cq(struct ib_device ibdev,

		rhp = to_c4iw_dev(ibdev);

		if (entries < 1 \|\| entries > ibdev->attrs.max_cqe)
		return ERR_PTR(-EINVAL);

		if (vector >= rhp->rdev.lldi.nciq)
		return ERR_PTR(-EINVAL);