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RDMA/mana_ib: Fix integer overflow during queue creation

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Check queue size during CQ creation for users to prevent
overflow of u32.

Fixes: bec127e45d ("RDMA/mana_ib: create kernel-level CQs")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1742312744-14370-1-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Konstantin Taranov 2025-03-18 08:45:44 -07:00 committed by Leon Romanovsky
parent 7919514764
commit 0c55174524
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/hw/mana/cq.c
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@ -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;
}