From 14aca7a8314e16e039ec3786facf8fc22a40219f Mon Sep 17 00:00:00 2001
From: Norbert Bokor <Norbert.Bokor@quest.com>
Date: Thu, 1 Dec 2022 11:08:46 +0100
Subject: [PATCH] heimdal/asn1: do not throw error when trying to allocate 0
 bytes of memory

---
 lib/asn1/template.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/asn1/template.c b/lib/asn1/template.c
index c2112174b..ed215d888 100644
--- a/lib/asn1/template.c
+++ b/lib/asn1/template.c
@@ -3015,7 +3015,7 @@ _asn1_copy(const struct asn1_template *t, const void *from, void *to)
 	    unsigned int i;
 
 	    tel->val = calloc(fel->len, ellen);
-	    if (tel->val == NULL)
+	    if (tel->val == NULL && fel->len > 0)
 		return ENOMEM;
 
 	    tel->len = fel->len;