diff --git a/sys/sys/malloc.h b/sys/sys/malloc.h
--- a/sys/sys/malloc.h
+++ b/sys/sys/malloc.h
@@ -60,8 +60,9 @@
 #define	M_BESTFIT	0x2000		/* only for vmem, low fragmentation */
 #define	M_EXEC		0x4000		/* allocate executable space */
 #define	M_NEXTFIT	0x8000		/* only for vmem, follow cursor */
+#define	M_NEVERFREED 	0x10000		/* chunk will never get free'd */
 
-#define	M_VERSION	2020110501
+#define	M_VERSION	2024042901
 
 /*
  * Two malloc type structures are present: malloc_type, which is used by a
diff --git a/sys/vm/uma_core.c b/sys/vm/uma_core.c
--- a/sys/vm/uma_core.c
+++ b/sys/vm/uma_core.c
@@ -1791,6 +1791,9 @@
 	if (keg->uk_flags & UMA_ZONE_NODUMP)
 		aflags |= M_NODUMP;
 
+	if (keg->uk_flags & UMA_ZONE_NOFREE)
+		aflags |= M_NEVERFREED;
+
 	/* zone is passed for legacy reasons. */
 	size = keg->uk_ppera * PAGE_SIZE;
 	mem = keg->uk_allocf(zone, size, domain, &sflags, aflags);