diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 5558556b8..d01b6a55a 100755
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -282,13 +282,6 @@ static inline void tag_clear_highpage(struct page *page)
 
 #endif
 
-static inline void verify_zero_highpage(struct page *page)
-{
-	void *kaddr = kmap_atomic(page);
-	BUG_ON(memchr_inv(kaddr, 0, PAGE_SIZE));
-	kunmap_atomic(kaddr);
-}
-
 static inline void zero_user_segments(struct page *page,
 	unsigned start1, unsigned end1,
 	unsigned start2, unsigned end2)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c2cb7f52f..08cd2858b 100755
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2391,12 +2391,6 @@ static void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags
 {
 	post_alloc_hook(page, order, gfp_flags);
 
-	if (IS_ENABLED(CONFIG_PAGE_SANITIZE_VERIFY) && want_init_on_free()) {
-		int i;
-		for (i = 0; i < (1 << order); i++)
-			verify_zero_highpage(page + i);
-	}
-
 	if (order && (gfp_flags & __GFP_COMP))
 		prep_compound_page(page, order);
 
diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening
index ef8f905b4..a69055b32 100755
--- a/security/Kconfig.hardening
+++ b/security/Kconfig.hardening
@@ -238,13 +238,6 @@ config INIT_ON_FREE_DEFAULT_ON
 	  touching "cold" memory areas. Most cases see 3-5% impact. Some
 	  synthetic workloads have measured as high as 8%.
 
-config PAGE_SANITIZE_VERIFY
-	bool "Verify sanitized pages"
-	default y
-	help
-	  When init_on_free is enabled, verify that newly allocated pages
-	  are zeroed to detect write-after-free bugs.
-
 endmenu
 
 endmenu