engines/e_sureware.c:992: error: NULL_DEREFERENCE
  pointer `psign` last assigned on line 961 could be null and is dereferenced at line 992, column 2.
Showing all 50 steps of the trace


engines/e_sureware.c:957:1: start of procedure surewarehk_dsa_do_sign()
955.   #ifndef OPENSSL_NO_DSA
956.   /* DSA sign and verify */
957. > static	DSA_SIG * surewarehk_dsa_do_sign(const unsigned char *from, int flen, DSA *dsa)
958.   {
959.   	int ret=0;

engines/e_sureware.c:959:2: 
957.   static	DSA_SIG * surewarehk_dsa_do_sign(const unsigned char *from, int flen, DSA *dsa)
958.   {
959. > 	int ret=0;
960.   	char *hptr=NULL;
961.   	DSA_SIG *psign=NULL;

engines/e_sureware.c:960:2: 
958.   {
959.   	int ret=0;
960. > 	char *hptr=NULL;
961.   	DSA_SIG *psign=NULL;
962.   	char msg[64]="ENGINE_dsa_do_sign";

engines/e_sureware.c:961:2: 
959.   	int ret=0;
960.   	char *hptr=NULL;
961. > 	DSA_SIG *psign=NULL;
962.   	char msg[64]="ENGINE_dsa_do_sign";
963.   	if (!p_surewarehk_Dsa_Sign)

engines/e_sureware.c:962:2: 
960.   	char *hptr=NULL;
961.   	DSA_SIG *psign=NULL;
962. > 	char msg[64]="ENGINE_dsa_do_sign";
963.   	if (!p_surewarehk_Dsa_Sign)
964.   	{

engines/e_sureware.c:963:7: Taking false branch
961.   	DSA_SIG *psign=NULL;
962.   	char msg[64]="ENGINE_dsa_do_sign";
963.   	if (!p_surewarehk_Dsa_Sign)
             ^
964.   	{
965.   		SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ENGINE_R_NOT_INITIALISED);

engines/e_sureware.c:968:13: 
966.   	}
967.   	/* extract ref to private key */
968. > 	else if (!(hptr=DSA_get_ex_data(dsa, dsaHndidx)))
969.   	{
970.   		SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,SUREWARE_R_MISSING_KEY_COMPONENTS);

crypto/dsa/dsa_lib.c:257:1: start of procedure DSA_get_ex_data()
  255.   	}
  256.   
  257. > void *DSA_get_ex_data(DSA *d, int idx)
  258.   	{
  259.   	return(CRYPTO_get_ex_data(&d->ex_data,idx));

crypto/dsa/dsa_lib.c:259:2: 
  257.   void *DSA_get_ex_data(DSA *d, int idx)
  258.   	{
  259. > 	return(CRYPTO_get_ex_data(&d->ex_data,idx));
  260.   	}
  261.   

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 false 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:633:3: 
    631.   		return(0);
    632.   	else
    633. > 		return(sk_value(ad->sk,idx));
    634.   	}
    635.   

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 false 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:310:2: 
      308.   {
      309.   	if(st == NULL) return NULL;
      310. > 	return st->data[i];
      311.   }
      312.   

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/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/dsa/dsa_lib.c:260:2: return from a call to DSA_get_ex_data
  258.   	{
  259.   	return(CRYPTO_get_ex_data(&d->ex_data,idx));
  260.   	}
          ^
  261.   
  262.   #ifndef OPENSSL_NO_DH

engines/e_sureware.c:968:13: Taking true branch
966.   	}
967.   	/* extract ref to private key */
968.   	else if (!(hptr=DSA_get_ex_data(dsa, dsaHndidx)))
                   ^
969.   	{
970.   		SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,SUREWARE_R_MISSING_KEY_COMPONENTS);

engines/e_sureware.c:970:3: 
968.   	else if (!(hptr=DSA_get_ex_data(dsa, dsaHndidx)))
969.   	{
970. > 		SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,SUREWARE_R_MISSING_KEY_COMPONENTS);
971.   	}
972.   	else

engines/e_sureware_err.c:145:1: start of procedure ERR_SUREWARE_error()
  143.   	}
  144.   
  145. > static void ERR_SUREWARE_error(int function, int reason, char *file, int line)
  146.   	{
  147.   	if (SUREWARE_lib_error_code == 0)

engines/e_sureware_err.c:147:6: Taking true branch
  145.   static void ERR_SUREWARE_error(int function, int reason, char *file, int line)
  146.   	{
  147.   	if (SUREWARE_lib_error_code == 0)
              ^
  148.   		SUREWARE_lib_error_code=ERR_get_next_error_library();
  149.   	ERR_PUT_error(SUREWARE_lib_error_code,function,reason,file,line);

engines/e_sureware_err.c:148:3: 
  146.   	{
  147.   	if (SUREWARE_lib_error_code == 0)
  148. > 		SUREWARE_lib_error_code=ERR_get_next_error_library();
  149.   	ERR_PUT_error(SUREWARE_lib_error_code,function,reason,file,line);
  150.   	}

crypto/err/err.c:973:1: start of procedure ERR_get_next_error_library()
    971.   	}
    972.   
    973. > int ERR_get_next_error_library(void)
    974.   	{
    975.   	err_fns_check();

crypto/err/err.c:975:2: 
    973.   int ERR_get_next_error_library(void)
    974.   	{
    975. > 	err_fns_check();
    976.   	return ERRFN(get_next_lib)();
    977.   	}

crypto/err/err.c:278:1: start of procedure err_fns_check()
      276.   /* Internal function that checks whether "err_fns" is set and if not, sets it to
      277.    * the defaults. */
      278. > static void err_fns_check(void)
      279.   	{
      280.   	if (err_fns) return;

crypto/err/err.c:280:6: Taking true branch
      278.   static void err_fns_check(void)
      279.   	{
      280.   	if (err_fns) return;
                  ^
      281.   	
      282.   	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

crypto/err/err.c:280:15: 
      278.   static void err_fns_check(void)
      279.   	{
      280. > 	if (err_fns) return;
      281.   	
      282.   	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

crypto/err/err.c:286:2: return from a call to err_fns_check
      284.   		err_fns = &err_defaults;
      285.   	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
      286.   	}
              ^
      287.   
      288.   /* API functions to get or set the underlying ERR functions. */

crypto/err/err.c:976:2: Skipping __function_pointer__(): unresolved function pointer
    974.   	{
    975.   	err_fns_check();
    976.   	return ERRFN(get_next_lib)();
            ^
    977.   	}
    978.   

crypto/err/err.c:977:2: return from a call to ERR_get_next_error_library
    975.   	err_fns_check();
    976.   	return ERRFN(get_next_lib)();
    977.   	}
            ^
    978.   
    979.   void ERR_set_error_data(char *data, int flags)

engines/e_sureware_err.c:149:2: 
  147.   	if (SUREWARE_lib_error_code == 0)
  148.   		SUREWARE_lib_error_code=ERR_get_next_error_library();
  149. > 	ERR_PUT_error(SUREWARE_lib_error_code,function,reason,file,line);
  150.   	}

crypto/err/err.c:617:1: start of procedure ERR_put_error()
    615.   /********************************************************/
    616.   
    617. > void ERR_put_error(int lib, int func, int reason, const char *file,
    618.   	     int line)
    619.   	{

crypto/err/err.c:641:2: Skipping ERR_get_state(): empty list of specs
    639.   	}
    640.   #endif
    641.   	es=ERR_get_state();
            ^
    642.   
    643.   	es->top=(es->top+1)%ERR_NUM_ERRORS;

crypto/err/err.c:643:2: 
    641.   	es=ERR_get_state();
    642.   
    643. > 	es->top=(es->top+1)%ERR_NUM_ERRORS;
    644.   	if (es->top == es->bottom)
    645.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;

crypto/err/err.c:644:6: Taking false branch
    642.   
    643.   	es->top=(es->top+1)%ERR_NUM_ERRORS;
    644.   	if (es->top == es->bottom)
                ^
    645.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
    646.   	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);

crypto/err/err.c:646:2: 
    644.   	if (es->top == es->bottom)
    645.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
    646. > 	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
    647.   	es->err_file[es->top]=file;
    648.   	es->err_line[es->top]=line;

crypto/err/err.c:647:2: 
    645.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
    646.   	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
    647. > 	es->err_file[es->top]=file;
    648.   	es->err_line[es->top]=line;
    649.   	err_clear_data(es,es->top);

crypto/err/err.c:648:2: 
    646.   	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
    647.   	es->err_file[es->top]=file;
    648. > 	es->err_line[es->top]=line;
    649.   	err_clear_data(es,es->top);
    650.   	}

crypto/err/err.c:649:2: Taking true branch
    647.   	es->err_file[es->top]=file;
    648.   	es->err_line[es->top]=line;
    649.   	err_clear_data(es,es->top);
            ^
    650.   	}
    651.   

crypto/err/err.c:649:2: Taking false branch
    647.   	es->err_file[es->top]=file;
    648.   	es->err_line[es->top]=line;
    649.   	err_clear_data(es,es->top);
            ^
    650.   	}
    651.   

crypto/err/err.c:650:2: return from a call to ERR_put_error
    648.   	es->err_line[es->top]=line;
    649.   	err_clear_data(es,es->top);
    650.   	}
            ^
    651.   
    652.   void ERR_clear_error(void)

engines/e_sureware_err.c:150:2: return from a call to ERR_SUREWARE_error
  148.   		SUREWARE_lib_error_code=ERR_get_next_error_library();
  149.   	ERR_PUT_error(SUREWARE_lib_error_code,function,reason,file,line);
  150.   	}
          ^

engines/e_sureware.c:992:2: 
990.   		surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ret);
991.   	}
992. > 	psign->r->top=20/sizeof(BN_ULONG);
993.   	bn_fix_top(psign->r);
994.   	psign->s->top=20/sizeof(BN_ULONG);
