fix fuzz issues

Signed-off-by: yixiangzhike <yixiangzhike007@163.com>

fix-memleaks-in-asn1-arrat2tree.patch

@@ -0,0 +1,90 @@
+From ea0e4fc2567edfc0d20141025837e2bd9c64c0cb Mon Sep 17 00:00:00 2001
+From: opneErler BUildteam <buildteam@openeuler.org>
+Date: Fri, 5 Jun 2020 15:46:37 +0800
+Subject: [PATCH] fix memleaks in asn1 arrat2tree
+
+---
+ lib/parser_aux.c |  2 +-
+ lib/structure.c  | 20 +++++++++----
+ 2 files changed, 15 insertions(+), 7 deletions(-)
+
+diff --git a/lib/parser_aux.c b/lib/parser_aux.c
+index d5dbbf8..071f1be 100644
+--- a/lib/parser_aux.c
++++ b/lib/parser_aux.c
+@@ -767,7 +767,7 @@ _asn1_expand_object_id (list_type **list, asn1_node node)
+ 			return ASN1_ELEMENT_NOT_FOUND;
+ 
+ 		      _asn1_set_down (p, p2->right);
+-		      if (p2->down)
++                     while (p2->down)
+ 			_asn1_delete_structure (*list, &p2->down, 0);
+ 		      _asn1_delete_node_from_list(*list, p2);
+ 		      _asn1_remove_node (p2, 0);
+diff --git a/lib/structure.c b/lib/structure.c
+index 8189c56..6dfba58 100644
+--- a/lib/structure.c
++++ b/lib/structure.c
+@@ -207,13 +207,13 @@ asn1_array2tree (const asn1_static_node * array, asn1_node * definitions,
+ 
+       if (move == DOWN)
+ 	{
+-	  if (p_last && p_last->down)
++	  while (p_last && p_last->down)
+ 	      _asn1_delete_structure (e_list, &p_last->down, 0);
+ 	  _asn1_set_down (p_last, p);
+ 	}
+       else if (move == RIGHT)
+         {
+-	  if (p_last && p_last->right)
++	  while (p_last && p_last->right)
+ 	      _asn1_delete_structure (e_list, &p_last->right, 0);
+ 	  _asn1_set_right (p_last, p);
+         }
+@@ -317,7 +317,7 @@ int
+ _asn1_delete_structure (list_type *e_list, asn1_node * structure, unsigned int flags)
+ {
+   asn1_node p, p2, p3;
+-
++  int flag_t = 1;
+   if (*structure == NULL)
+     return ASN1_ELEMENT_NOT_FOUND;
+ 
+@@ -347,7 +347,11 @@ _asn1_delete_structure (list_type *e_list, asn1_node * structure, unsigned int f
+ 		{
+ 		  p3 = _asn1_find_up (p);
+ 		  if (p3)
++                 {
+ 		    _asn1_set_down (p3, p2);
++                   p2 = NULL;
++                   flag_t = 0;
++                 }
+ 		  else
+ 		    {
+ 		      if (p->right)
+@@ -355,15 +359,19 @@ _asn1_delete_structure (list_type *e_list, asn1_node * structure, unsigned int f
+ 		    }
+ 		}
+ 	      else
+-		_asn1_set_right (p3, p2);
++               {
++                 _asn1_set_right (p3,p2);
++                 p2 = NULL;
++                 flag_t = 0;
++               }
+ 	      if (e_list)
+ 		_asn1_delete_node_from_list (e_list, p);
+ 	      _asn1_remove_node (p, flags);
+-	      p = NULL;
++	      p = p2;
+ 	    }
+ 	}
+     }
+-
++if (flag_t)
+   *structure = NULL;
+   return ASN1_SUCCESS;
+ }
+-- 
+1.8.3.1
+

libtasn1.spec

@@ -1,7 +1,7 @@
 Summary:	Libtasn1 is a ASN.1 parsing library
 Name:		libtasn1
 Version:	4.17.0
-Release:	1
+Release:	2
 
 # The libtasn1 library is LGPLv2+, utilities are GPLv3+
 License:	GPLv3+ and LGPLv2+
@@ -9,6 +9,8 @@ URL:		http://www.gnu.org/software/libtasn1/
 Source0:	http://ftp.gnu.org/gnu/libtasn1/%{name}-%{version}.tar.gz
 Source1:	http://ftp.gnu.org/gnu/libtasn1/%{name}-%{version}.tar.gz.sig
 
+Patch0:         fix-memleaks-in-asn1-arrat2tree.patch
+
 BuildRequires:	gcc, autoconf, automake, libtool, gnupg2, bison, pkgconfig, help2man
 # when autoconf >= 2.71, the command autoreconf need gtk-doc package
 BuildRequires:  gtk-doc
@@ -83,6 +85,9 @@ test "$1" = 0 -a -f %_infodir/%name.info.gz && \
 %{_infodir}/*.info.*
 
 %changelog
+* Sat May 28 2022 yixiangzhike <yixiangzhike007@163.com> - 4.17.0-2
+- fix fuzz issues
+
 * Fri Dec 24 2021 yixiangzhike <yixiangzhike007@163.com> - 4.17.0-1
 - update to 4.17.0