crypto/engine/hw_4758_cca.c:607: error: NULL_DEREFERENCE
  pointer `keyToken` last assigned on line 598 could be null and is dereferenced at line 607, column 19.
Showing all 22 steps of the trace


crypto/engine/hw_4758_cca.c:587:1: start of procedure cca_rsa_verify()
585.   #define SSL_SIG_LEN 36
586.   
587. > static int cca_rsa_verify(int type, const unsigned char *m, unsigned int m_len,
588.   		unsigned char *sigbuf, unsigned int siglen, const RSA *rsa)
589.   	{

crypto/engine/hw_4758_cca.c:592:2: 
590.   	long returnCode;
591.   	long reasonCode;
592. > 	long lsiglen = siglen;
593.   	long exitDataLength = 0;
594.   	unsigned char exitData[8];

crypto/engine/hw_4758_cca.c:593:2: 
591.   	long reasonCode;
592.   	long lsiglen = siglen;
593. > 	long exitDataLength = 0;
594.   	unsigned char exitData[8];
595.   	long ruleArrayLength = 1;

crypto/engine/hw_4758_cca.c:595:2: 
593.   	long exitDataLength = 0;
594.   	unsigned char exitData[8];
595. > 	long ruleArrayLength = 1;
596.   	unsigned char ruleArray[8] = "PKCS-1.1";
597.   	long keyTokenLength;

crypto/engine/hw_4758_cca.c:596:2: 
594.   	unsigned char exitData[8];
595.   	long ruleArrayLength = 1;
596. > 	unsigned char ruleArray[8] = "PKCS-1.1";
597.   	long keyTokenLength;
598.   	unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);

crypto/engine/hw_4758_cca.c:598:2: 
596.   	unsigned char ruleArray[8] = "PKCS-1.1";
597.   	long keyTokenLength;
598. > 	unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
599.   	long length = SSL_SIG_LEN;
600.   	long keyLength ;

crypto/rsa/rsa_lib.c:243:1: start of procedure RSA_get_ex_data()
  241.   	}
  242.   
  243. > void *RSA_get_ex_data(const RSA *r, int idx)
  244.   	{
  245.   	return(CRYPTO_get_ex_data(&r->ex_data,idx));

crypto/rsa/rsa_lib.c:245:2: 
  243.   void *RSA_get_ex_data(const RSA *r, int idx)
  244.   	{
  245. > 	return(CRYPTO_get_ex_data(&r->ex_data,idx));
  246.   	}
  247.   

crypto/ex_data.c:626:1: start of procedure CRYPTO_get_ex_data()
    624.   /* For a given CRYPTO_EX_DATA_ variable, get the value corresponding to a
    625.    * particular index in the class used by this variable */
    626. > void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    627.   	{
    628.   	if (ad->sk == NULL)

crypto/ex_data.c:628:6: Taking false branch
    626.   void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    627.   	{
    628.   	if (ad->sk == NULL)
                ^
    629.   		return(0);
    630.   	else if (idx >= sk_num(ad->sk))

crypto/ex_data.c:630:11: 
    628.   	if (ad->sk == NULL)
    629.   		return(0);
    630. > 	else if (idx >= sk_num(ad->sk))
    631.   		return(0);
    632.   	else

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 false branch
      301.   int sk_num(const STACK *st)
      302.   {
      303.   	if(st == NULL) return -1;
                 ^
      304.   	return st->num;
      305.   }

crypto/stack/stack.c:304:2: 
      302.   {
      303.   	if(st == NULL) return -1;
      304. > 	return st->num;
      305.   }
      306.   

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/ex_data.c:630:11: Taking true branch
    628.   	if (ad->sk == NULL)
    629.   		return(0);
    630.   	else if (idx >= sk_num(ad->sk))
                     ^
    631.   		return(0);
    632.   	else

crypto/ex_data.c:631:3: 
    629.   		return(0);
    630.   	else if (idx >= sk_num(ad->sk))
    631. > 		return(0);
    632.   	else
    633.   		return(sk_value(ad->sk,idx));

crypto/ex_data.c:634:2: return from a call to CRYPTO_get_ex_data
    632.   	else
    633.   		return(sk_value(ad->sk,idx));
    634.   	}
            ^
    635.   
    636.   IMPLEMENT_STACK_OF(CRYPTO_EX_DATA_FUNCS)

crypto/rsa/rsa_lib.c:246:2: return from a call to RSA_get_ex_data
  244.   	{
  245.   	return(CRYPTO_get_ex_data(&r->ex_data,idx));
  246.   	}
          ^
  247.   
  248.   int RSA_size(const RSA *r)

crypto/engine/hw_4758_cca.c:599:2: 
597.   	long keyTokenLength;
598.   	unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
599. > 	long length = SSL_SIG_LEN;
600.   	long keyLength ;
601.   	unsigned char *hashBuffer = NULL;

crypto/engine/hw_4758_cca.c:601:2: 
599.   	long length = SSL_SIG_LEN;
600.   	long keyLength ;
601. > 	unsigned char *hashBuffer = NULL;
602.   	X509_SIG sig;
603.   	ASN1_TYPE parameter;

crypto/engine/hw_4758_cca.c:607:2: 
605.   	ASN1_OCTET_STRING digest;
606.   
607. > 	keyTokenLength = *(long*)keyToken;
608.   	keyToken+=sizeof(long);
609.   
