void teecore_init_ta_ram(void)
{
	vaddr_t s;
	vaddr_t e;
	paddr_t ps;
	paddr_t pe;

	/* get virtual addr/size of RAM where TA are loaded/executedNSec
	 * shared mem allcated from teecore */
	core_mmu_get_mem_by_type(MEM_AREA_TA_RAM, &s, &e);
	ps = virt_to_phys((void *)s);
	pe = virt_to_phys((void *)(e - 1)) + 1;

	if (!ps || (ps & CORE_MMU_USER_CODE_MASK) ||
	    !pe || (pe & CORE_MMU_USER_CODE_MASK))
		panic("invalid TA RAM");

	/* extra check: we could rely on  core_mmu_get_mem_by_type() */
	if (!tee_pbuf_is_sec(ps, pe - ps))
		panic("TA RAM is not secure");

	if (!tee_mm_is_empty(&tee_mm_sec_ddr))
		panic("TA RAM pool is not empty");

	/* remove previous config and init TA ddr memory pool */
	tee_mm_final(&tee_mm_sec_ddr);
	tee_mm_init(&tee_mm_sec_ddr, ps, pe, CORE_MMU_USER_CODE_SHIFT,
		    TEE_MM_POOL_NO_FLAGS);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.