| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 159/453] RDMA/cxgb4: Validate the number of CQEs | Date | Mon, 28 Dec 2020 13:46:35 +0100 |
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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> --- drivers/infiniband/hw/cxgb4/cq.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c index b1bb61c65f4f6..16b74591a68db 100644 --- a/drivers/infiniband/hw/cxgb4/cq.c +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -1007,6 +1007,9 @@ int c4iw_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, if (attr->flags) return -EINVAL; + if (entries < 1 || entries > ibdev->attrs.max_cqe) + return -EINVAL; + if (vector >= rhp->rdev.lldi.nciq) return -EINVAL; -- 2.27.0
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