static void finish_wqe(struct mlx5_ib_qp *qp,
		       struct mlx5_wqe_ctrl_seg *ctrl,
		       u8 size, unsigned idx, u64 wr_id,
		       int nreq, u8 fence, u32 mlx5_opcode)
{
	u8 opmod = 0;

	ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) |
					     mlx5_opcode | ((u32)opmod << 24));
	ctrl->qpn_ds = cpu_to_be32(size | (qp->trans_qp.base.mqp.qpn << 8));
	ctrl->fm_ce_se |= fence;
	if (unlikely(qp->wq_sig))
		ctrl->signature = wq_sig(ctrl);

	qp->sq.wrid[idx] = wr_id;
	qp->sq.w_list[idx].opcode = mlx5_opcode;
	qp->sq.wqe_head[idx] = qp->sq.head + nreq;
	qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB);
	qp->sq.w_list[idx].next = qp->sq.cur_post;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.