From: Kamal Heib kamalheib1@gmail.com
[ Upstream commit 6d8285e604e0221b67bd5db736921b7ddce37d00 ]
Before create CQ, make sure that the requested number of CQEs is in the supported range.
Fixes: cfdda9d76436 ("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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/cxgb4/cq.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/infiniband/hw/cxgb4/cq.c +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -906,6 +906,9 @@ struct ib_cq *c4iw_create_cq(struct ib_d
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);