diff -dru samba-4.11.4.orig/source3/modules/vfs_fruit.c samba-4.11.4/source3/modules/vfs_fruit.c
--- samba-4.11.4.orig/source3/modules/vfs_fruit.c	2019-12-16 15:59:07.000000000 +0100
+++ samba-4.11.4/source3/modules/vfs_fruit.c	2019-12-22 08:58:33.078994412 +0100
@@ -6971,7 +6971,7 @@
 		return true;
 	}
 
-	if (bandsize > SIZE_MAX/nbands) {
+	if ((nbands != 0) && (bandsize > SIZE_MAX/nbands)) {
 		DBG_ERR("tmsize overflow: bandsize [%zu] nbands [%zu]\n",
 			bandsize, nbands);
 		return false;