diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index 78b3e0f8e997cab99b70bffe181949d8d29610dc..d502703e8373a7bdaf9238149d91090818622ab3 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -76,6 +76,9 @@ void mte_sync_tags(pte_t old_pte, pte_t pte)
 			mte_sync_page_tags(page, old_pte, check_swap,
 					   pte_is_tagged);
 	}
+
+	/* ensure the tags are visible before the PTE is set */
+	smp_wmb();
 }
 
 int memcmp_pages(struct page *page1, struct page *page2)