diff --git a/sys/kern/kern_ktrace.c b/sys/kern/kern_ktrace.c
index 615e6bdb93ef..6e1a449d3cea 100644
--- a/sys/kern/kern_ktrace.c
+++ b/sys/kern/kern_ktrace.c
@@ -77,6 +77,7 @@ __KERNEL_RCSID(0, "$NetBSD: kern_ktrace.c,v 1.179 2022/03/12 17:45:53 riastradh
 #include <sys/callout.h>
 #include <sys/kauth.h>
 #include <sys/cpu.h>
+#include <sys/msan.h>
 
 #include <sys/mount.h>
 #include <sys/syscallargs.h>
@@ -503,8 +504,12 @@ ktealloc(struct ktrace_entry **ktep, void **bufp, lwp_t *l, int type,
 		return EAGAIN;
 
 	kte = pool_cache_get(kte_cache, PR_WAITOK);
+	kmsan_orig(kte, sizeof(*kte), KMSAN_TYPE_KMEM,
+	    (uintptr_t)__builtin_return_address(0));
 	if (sz > sizeof(kte->kte_space)) {
 		buf = kmem_alloc(sz, KM_SLEEP);
+		kmsan_orig(buf, sz, KMSAN_TYPE_KMEM,
+		    (uintptr_t)__builtin_return_address(0));
 	} else
 		buf = kte->kte_space;