void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
		    gfp_t gfp, struct dma_attrs *attrs)
{
	pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL);
	void *memory;

	if (dma_alloc_from_coherent(dev, size, handle, &memory))
		return memory;

	return __dma_alloc(dev, size, handle, gfp, prot, false,
			   __builtin_return_address(0));
}
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.