From: Nikos Mavrogiannopoulos <nmav@redhat.com>
Date: Wed, 25 Jun 2014 12:16:22 +0000 (+0200)
Subject: pkcs11: avoid callig _gnutls_bin2hex() when length is zero.
X-Git-Tag: gnutls_3_3_5~16
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cbf603899674b376878a80f1ca30dd87f4a16dfb;p=thirdparty%2Fgnutls.git

pkcs11: avoid callig _gnutls_bin2hex() when length is zero.
---

diff --git a/lib/pkcs11.c b/lib/pkcs11.c
index c32c616a0e..38630839b6 100644
--- a/lib/pkcs11.c
+++ b/lib/pkcs11.c
@@ -457,7 +457,7 @@ pkcs11_get_info(struct p11_kit_uri *info,
 			*output_size = length * 3;
 			return GNUTLS_E_SHORT_MEMORY_BUFFER;
 		}
-		if (output)
+		if (output && length > 0)
 			_gnutls_bin2hex(data, length, output, *output_size,
 					":");
 		*output_size = length * 3;