Comment # 15 on bug 1231465 from Jiri Slaby

pff, I believe the tbl_size (int) is simply so high (3252MB), so that it is
negative and sign-extended to ulong:
static int __initdata tbl_size;
        tbl_size = sizeof(*tbl) + tbl->num_entries * tbl->desc_size;
        memblock_reserve(efi_mem_attr_table, tbl_size);

Having tbl_size = 0xcb4ba000 which is -884236272 bakes that:
0xcb4ba000 -> 0xffffffffcb4ba010
and then the resulting range:
0x77535018-0x429ef027

So does this help:
--- a/drivers/firmware/efi/memattr.c
+++ b/drivers/firmware/efi/memattr.c
@@ -12,7 +12,7 @@

 #include <asm/early_ioremap.h>

-static int __initdata tbl_size;
+static phys_addr_t __initdata tbl_size;
 unsigned long __ro_after_init efi_mem_attr_table = EFI_INVALID_TABLE_ADDR;

 /*

?