kasan_mem_to_shadow_align_up
shadow_end = kasan_mem_to_shadow_align_up((unsigned long)va + size);
shadow_cea_per_cpu_begin = kasan_mem_to_shadow_align_up(CPU_ENTRY_AREA_PER_CPU);
shadow_cea_end = kasan_mem_to_shadow_align_up(CPU_ENTRY_AREA_BASE +