Commit 0c551745 authored by Konstantin Taranov's avatar Konstantin Taranov Committed by Leon Romanovsky
Browse files

RDMA/mana_ib: Fix integer overflow during queue creation 



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

Fixes: bec127e4 ("RDMA/mana_ib: create kernel-level CQs")
Signed-off-by: default avatarKonstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1742312744-14370-1-git-send-email-kotaranov@linux.microsoft.com


Reviewed-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 79195147

drivers/infiniband/hw/mana/cq.c

+2 −1
Original line number Diff line number Diff line
@@ -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;

		}