From: Arran Cudbard-Bell <a.cudbardb@freeradius.org>
Date: Fri, 31 Jul 2020 15:02:09 +0000 (-0400)
Subject: sbuff: Fix use of NULL pointer
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2c9fcc174cfeccf106a18e73ae8d5ded22c5466;p=thirdparty%2Ffreeradius-server.git

sbuff: Fix use of NULL pointer
---

diff --git a/src/lib/util/print.c b/src/lib/util/print.c
index ed54b89fc63..2e7eb251ec9 100644
--- a/src/lib/util/print.c
+++ b/src/lib/util/print.c
@@ -740,7 +740,11 @@ char *fr_vasprintf(TALLOC_CTX *ctx, char const *fmt, va_list ap)
 
 				switch (in->type) {
 				case FR_TYPE_OCTETS:
-					fr_abin2hex(NULL, &subst, &FR_DBUFF_TMP(in->vb_octets, in->vb_length));
+					if (in->vb_octets) {
+						fr_abin2hex(NULL, &subst, &FR_DBUFF_TMP(in->vb_octets, in->vb_length));
+					} else {
+						subst = talloc_strdup(NULL, "");
+					}
 					break;
 
 				case FR_TYPE_STRING: