As vodz pointed out, setting unset_env to NULL is sufficient
diff --git a/coreutils/env.c b/coreutils/env.c
index d8b4285..1e95f81 100644
--- a/coreutils/env.c
+++ b/coreutils/env.c
@@ -62,13 +62,9 @@
 	char **ep, *p;
 	char *cleanenv[1] = { NULL };
 	unsigned long opt;
-	llist_t list, *unset_env;
+	llist_t *unset_env = NULL;
 	extern char **environ;
 
-	list.data = NULL;
-	list.link = NULL;
-	unset_env = &list;
-
 	bb_opt_complementaly = "u*";
 	bb_applet_long_options = env_long_options;