From: Konstantin Taranov <kotaranov@xxxxxxxxxxxxx>
Check queue size during CQ creation for users to prevent
overflow of u32.
Fixes: bec127e45d9f ("RDMA/mana_ib: create kernel-level CQs")
Signed-off-by: Konstantin Taranov <kotaranov@xxxxxxxxxxxxx>
---
v2: Only check the size of user CQs
drivers/infiniband/hw/mana/cq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mana/cq.c b/drivers/infiniband/hw/mana/cq.c
index 5c325ef..0fc4e26 100644
--- a/drivers/infiniband/hw/mana/cq.c
+++ b/drivers/infiniband/hw/mana/cq.c
@@ -39,7 +39,8 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
is_rnic_cq = !!(ucmd.flags & MANA_IB_CREATE_RNIC_CQ);
- if (!is_rnic_cq && attr->cqe > mdev->adapter_caps.max_qp_wr) {
+ if ((!is_rnic_cq && attr->cqe > mdev->adapter_caps.max_qp_wr) ||
+ attr->cqe > U32_MAX / COMP_ENTRY_SIZE) {
ibdev_dbg(ibdev, "CQE %d exceeding limit\n", attr->cqe);
return -EINVAL;
}
--
2.43.0
