Index: kernel/genarch/src/multiboot/multiboot2.c
===================================================================
--- kernel/genarch/src/multiboot/multiboot2.c	(revision a548528552366e61f5f0fe987fde037094148135)
+++ kernel/genarch/src/multiboot/multiboot2.c	(revision 6aeb60f6e41ab8e130e28157f9878a1eaab9bc96)
@@ -65,5 +65,5 @@
 	multiboot2_memmap_entry_t *entry = (multiboot2_memmap_entry_t *)
 	    ((uintptr_t) memmap + sizeof(*memmap));
-	uint32_t pos = sizeof(*memmap);
+	uint32_t pos = offsetof(multiboot2_tag_t, memmap) + sizeof(*memmap);
 
 	while ((pos < length) && (e820counter < MEMMAP_E820_MAX_RECORDS)) {