crypto/pkcs7/pk7_doit.c:810: error: NULL_DEREFERENCE
  pointer `ri` last assigned on line 809 could be null and is dereferenced at line 810, column 8.
Showing all 39 steps of the trace


crypto/pkcs7/pk7_doit.c:798:1: start of procedure PKCS7_get_issuer_and_serial()
796.   	}
797.   
798. > PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx)
799.   	{
800.   	STACK_OF(PKCS7_RECIP_INFO) *rsk;

crypto/pkcs7/pk7_doit.c:804:2: 
802.   	int i;
803.   
804. > 	i=OBJ_obj2nid(p7->type);
805.   	if (i != NID_pkcs7_signedAndEnveloped) return(NULL);
806.   	rsk=p7->d.signed_and_enveloped->recipientinfo;

crypto/objects/obj_dat.c:367:1: start of procedure OBJ_obj2nid()
  365.   	}
  366.   
  367. > int OBJ_obj2nid(const ASN1_OBJECT *a)
  368.   	{
  369.   	ASN1_OBJECT **op;

crypto/objects/obj_dat.c:372:6: Taking false branch
  370.   	ADDED_OBJ ad,*adp;
  371.   
  372.   	if (a == NULL)
              ^
  373.   		return(NID_undef);
  374.   	if (a->nid != 0)

crypto/objects/obj_dat.c:374:6: Taking false branch
  372.   	if (a == NULL)
  373.   		return(NID_undef);
  374.   	if (a->nid != 0)
              ^
  375.   		return(a->nid);
  376.   

crypto/objects/obj_dat.c:377:6: Taking true branch
  375.   		return(a->nid);
  376.   
  377.   	if (added != NULL)
              ^
  378.   		{
  379.   		ad.type=ADDED_DATA;

crypto/objects/obj_dat.c:379:3: 
  377.   	if (added != NULL)
  378.   		{
  379. > 		ad.type=ADDED_DATA;
  380.   		ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
  381.   		adp=(ADDED_OBJ *)lh_retrieve(added,&ad);

crypto/objects/obj_dat.c:380:3: 
  378.   		{
  379.   		ad.type=ADDED_DATA;
  380. > 		ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
  381.   		adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
  382.   		if (adp != NULL) return (adp->obj->nid);

crypto/objects/obj_dat.c:381:3: 
  379.   		ad.type=ADDED_DATA;
  380.   		ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
  381. > 		adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
  382.   		if (adp != NULL) return (adp->obj->nid);
  383.   		}

crypto/lhash/lhash.c:248:1: start of procedure lh_retrieve()
    246.   	}
    247.   
    248. > void *lh_retrieve(LHASH *lh, const void *data)
    249.   	{
    250.   	unsigned long hash;

crypto/lhash/lhash.c:254:2: 
    252.   	const void *ret;
    253.   
    254. > 	lh->error=0;
    255.   	rn=getrn(lh,data,&hash);
    256.   

crypto/lhash/lhash.c:255:2: Skipping getrn(): empty list of specs
    253.   
    254.   	lh->error=0;
    255.   	rn=getrn(lh,data,&hash);
            ^
    256.   
    257.   	if (*rn == NULL)

crypto/lhash/lhash.c:257:6: Taking false branch
    255.   	rn=getrn(lh,data,&hash);
    256.   
    257.   	if (*rn == NULL)
                ^
    258.   		{
    259.   		lh->num_retrieve_miss++;

crypto/lhash/lhash.c:264:3: 
    262.   	else
    263.   		{
    264. > 		ret= (*rn)->data;
    265.   		lh->num_retrieve++;
    266.   		}

crypto/lhash/lhash.c:265:3: 
    263.   		{
    264.   		ret= (*rn)->data;
    265. > 		lh->num_retrieve++;
    266.   		}
    267.   	return((void *)ret);

crypto/lhash/lhash.c:267:2: 
    265.   		lh->num_retrieve++;
    266.   		}
    267. > 	return((void *)ret);
    268.   	}
    269.   

crypto/lhash/lhash.c:268:2: return from a call to lh_retrieve
    266.   		}
    267.   	return((void *)ret);
    268.   	}
            ^
    269.   
    270.   static void doall_util_fn(LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func,

crypto/objects/obj_dat.c:382:7: Taking true branch
  380.   		ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
  381.   		adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
  382.   		if (adp != NULL) return (adp->obj->nid);
               ^
  383.   		}
  384.   	op=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,

crypto/objects/obj_dat.c:382:20: 
  380.   		ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
  381.   		adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
  382. > 		if (adp != NULL) return (adp->obj->nid);
  383.   		}
  384.   	op=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,

crypto/objects/obj_dat.c:389:2: return from a call to OBJ_obj2nid
  387.   		return(NID_undef);
  388.   	return((*op)->nid);
  389.   	}
          ^
  390.   
  391.   /* Convert an object name into an ASN1_OBJECT

crypto/pkcs7/pk7_doit.c:805:6: Taking false branch
803.   
804.   	i=OBJ_obj2nid(p7->type);
805.   	if (i != NID_pkcs7_signedAndEnveloped) return(NULL);
            ^
806.   	rsk=p7->d.signed_and_enveloped->recipientinfo;
807.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);

crypto/pkcs7/pk7_doit.c:806:2: 
804.   	i=OBJ_obj2nid(p7->type);
805.   	if (i != NID_pkcs7_signedAndEnveloped) return(NULL);
806. > 	rsk=p7->d.signed_and_enveloped->recipientinfo;
807.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);
808.   	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);

crypto/pkcs7/pk7_doit.c:807:2: 
805.   	if (i != NID_pkcs7_signedAndEnveloped) return(NULL);
806.   	rsk=p7->d.signed_and_enveloped->recipientinfo;
807. > 	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);
808.   	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);
809.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);

crypto/stack/stack.c:307:1: start of procedure sk_value()
  305.   }
  306.   
  307. > char *sk_value(const STACK *st, int i)
  308.   {
  309.   	if(st == NULL) return NULL;

crypto/stack/stack.c:309:5: Taking true branch
  307.   char *sk_value(const STACK *st, int i)
  308.   {
  309.   	if(st == NULL) return NULL;
             ^
  310.   	return st->data[i];
  311.   }

crypto/stack/stack.c:309:17: 
  307.   char *sk_value(const STACK *st, int i)
  308.   {
  309. > 	if(st == NULL) return NULL;
  310.   	return st->data[i];
  311.   }

crypto/stack/stack.c:311:1: return from a call to sk_value
  309.   	if(st == NULL) return NULL;
  310.   	return st->data[i];
  311. > }
  312.   
  313.   char *sk_set(STACK *st, int i, char *value)

crypto/pkcs7/pk7_doit.c:808:6: 
806.   	rsk=p7->d.signed_and_enveloped->recipientinfo;
807.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);
808. > 	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);
809.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);
810.   	return(ri->issuer_and_serial);

crypto/stack/stack.c:301:1: start of procedure sk_num()
  299.   	}
  300.   
  301. > int sk_num(const STACK *st)
  302.   {
  303.   	if(st == NULL) return -1;

crypto/stack/stack.c:303:5: Taking true branch
  301.   int sk_num(const STACK *st)
  302.   {
  303.   	if(st == NULL) return -1;
             ^
  304.   	return st->num;
  305.   }

crypto/stack/stack.c:303:17: 
  301.   int sk_num(const STACK *st)
  302.   {
  303. > 	if(st == NULL) return -1;
  304.   	return st->num;
  305.   }

crypto/stack/stack.c:305:1: return from a call to sk_num
  303.   	if(st == NULL) return -1;
  304.   	return st->num;
  305. > }
  306.   
  307.   char *sk_value(const STACK *st, int i)

crypto/pkcs7/pk7_doit.c:808:6: Taking false branch
806.   	rsk=p7->d.signed_and_enveloped->recipientinfo;
807.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);
808.   	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);
            ^
809.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);
810.   	return(ri->issuer_and_serial);

crypto/pkcs7/pk7_doit.c:809:2: 
807.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);
808.   	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);
809. > 	ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);
810.   	return(ri->issuer_and_serial);
811.   	}

crypto/stack/stack.c:307:1: start of procedure sk_value()
  305.   }
  306.   
  307. > char *sk_value(const STACK *st, int i)
  308.   {
  309.   	if(st == NULL) return NULL;

crypto/stack/stack.c:309:5: Taking true branch
  307.   char *sk_value(const STACK *st, int i)
  308.   {
  309.   	if(st == NULL) return NULL;
             ^
  310.   	return st->data[i];
  311.   }

crypto/stack/stack.c:309:17: 
  307.   char *sk_value(const STACK *st, int i)
  308.   {
  309. > 	if(st == NULL) return NULL;
  310.   	return st->data[i];
  311.   }

crypto/stack/stack.c:311:1: return from a call to sk_value
  309.   	if(st == NULL) return NULL;
  310.   	return st->data[i];
  311. > }
  312.   
  313.   char *sk_set(STACK *st, int i, char *value)

crypto/pkcs7/pk7_doit.c:810:2: 
808.   	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);
809.   	ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);
810. > 	return(ri->issuer_and_serial);
811.   	}
812.   

PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx)
	{
	STACK_OF(PKCS7_RECIP_INFO) *rsk;
	PKCS7_RECIP_INFO *ri;
	int i;
	i=OBJ_obj2nid(p7->type);
	if (i != NID_pkcs7_signedAndEnveloped) return(NULL);
	rsk=p7->d.signed_and_enveloped->recipientinfo;
	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);
	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);
	ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);
	return(ri->issuer_and_serial);
	}
['PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx)\n\t{\n\tSTACK_OF(PKCS7_RECIP_INFO) *rsk;\n\tPKCS7_RECIP_INFO *ri;\n\tint i;\n\ti=OBJ_obj2nid(p7->type);\n\tif (i != NID_pkcs7_signedAndEnveloped) return(NULL);\n\trsk=p7->d.signed_and_enveloped->recipientinfo;\n\tri=sk_PKCS7_RECIP_INFO_value(rsk,0);\n\tif (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);\n\tri=sk_PKCS7_RECIP_INFO_value(rsk,idx);\n\treturn(ri->issuer_and_serial);\n\t}', 'int OBJ_obj2nid(const ASN1_OBJECT *a)\n\t{\n\tASN1_OBJECT **op;\n\tADDED_OBJ ad,*adp;\n\tif (a == NULL)\n\t\treturn(NID_undef);\n\tif (a->nid != 0)\n\t\treturn(a->nid);\n\tif (added != NULL)\n\t\t{\n\t\tad.type=ADDED_DATA;\n\t\tad.obj=(ASN1_OBJECT *)a;\n\t\tadp=(ADDED_OBJ *)lh_retrieve(added,&ad);\n\t\tif (adp != NULL) return (adp->obj->nid);\n\t\t}\n\top=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,\n\t\tsizeof(ASN1_OBJECT *),obj_cmp);\n\tif (op == NULL)\n\t\treturn(NID_undef);\n\treturn((*op)->nid);\n\t}', 'void *lh_retrieve(LHASH *lh, const void *data)\n\t{\n\tunsigned long hash;\n\tLHASH_NODE **rn;\n\tconst void *ret;\n\tlh->error=0;\n\trn=getrn(lh,data,&hash);\n\tif (*rn == NULL)\n\t\t{\n\t\tlh->num_retrieve_miss++;\n\t\treturn(NULL);\n\t\t}\n\telse\n\t\t{\n\t\tret= (*rn)->data;\n\t\tlh->num_retrieve++;\n\t\t}\n\treturn((void *)ret);\n\t}', 'char *sk_value(const STACK *st, int i)\n{\n\tif(st == NULL) return NULL;\n\treturn st->data[i];\n}', 'int sk_num(const STACK *st)\n{\n\tif(st == NULL) return -1;\n\treturn st->num;\n}']