diff --git a/sys/vm/vm_glue.c b/sys/vm/vm_glue.c
--- a/sys/vm/vm_glue.c
+++ b/sys/vm/vm_glue.c
@@ -68,6 +68,7 @@
 
 #include <sys/param.h>
 #include <sys/systm.h>
+#include <sys/asan.h>
 #include <sys/domainset.h>
 #include <sys/limits.h>
 #include <sys/lock.h>
@@ -86,7 +87,6 @@
 #include <sys/vmem.h>
 #include <sys/sx.h>
 #include <sys/sysctl.h>
-#include <sys/eventhandler.h>
 #include <sys/kernel.h>
 #include <sys/ktr.h>
 #include <sys/unistd.h>
@@ -351,6 +351,7 @@
 		vm_page_free(m);
 	}
 	VM_OBJECT_WUNLOCK(kstack_object);
+	kasan_mark((void *)ks, ptoa(pages), ptoa(pages), 0);
 	kva_free(ks - (KSTACK_GUARD_PAGES * PAGE_SIZE),
 	    (pages + KSTACK_GUARD_PAGES) * PAGE_SIZE);
 }
@@ -385,6 +386,7 @@
 		return (0);
 	td->td_kstack = ks;
 	td->td_kstack_pages = pages;
+	kasan_mark((void *)ks, ptoa(pages), ptoa(pages), 0);
 	return (1);
 }
 
@@ -401,6 +403,7 @@
 	ks = td->td_kstack;
 	td->td_kstack = 0;
 	td->td_kstack_pages = 0;
+	kasan_mark((void *)ks, 0, ptoa(pages), KASAN_KSTACK_FREED);
 	if (pages == kstack_pages)
 		uma_zfree(kstack_cache, (void *)ks);
 	else