engines/e_ubsec.c:946: error: NULL_DEREFERENCE
  pointer `pub_key` last assigned on line 944 could be null and is dereferenced at line 946, column 17.
Showing all 46 steps of the trace


engines/e_ubsec.c:911:1: start of procedure ubsec_dh_generate_key()
909.           }
910.   
911. > static int ubsec_dh_generate_key(DH *dh)
912.           {
913.           int      ret               = 0,

engines/e_ubsec.c:913:9: 
911.   static int ubsec_dh_generate_key(DH *dh)
912.           {
913. >         int      ret               = 0,
914.                    random_bits       = 0,
915.                    pub_key_len       = 0,

engines/e_ubsec.c:918:9: 
916.                    priv_key_len      = 0,
917.                    fd;
918. >         BIGNUM   *pub_key          = NULL;
919.           BIGNUM   *priv_key         = NULL;
920.   

engines/e_ubsec.c:919:9: 
917.                    fd;
918.           BIGNUM   *pub_key          = NULL;
919. >         BIGNUM   *priv_key         = NULL;
920.   
921.           /* 

engines/e_ubsec.c:926:13: Taking false branch
924.            */
925.   
926.           if (dh->priv_key == NULL)
                   ^
927.                   {
928.                   priv_key = BN_new();

engines/e_ubsec.c:939:17: 
937.           else
938.                   {
939. >                 priv_key = dh->priv_key;
940.                   }
941.   

engines/e_ubsec.c:942:13: Taking true branch
940.                   }
941.   
942.           if (dh->pub_key == NULL)
                   ^
943.                   {
944.                   pub_key = BN_new();

engines/e_ubsec.c:944:17: 
942.           if (dh->pub_key == NULL)
943.                   {
944. >                 pub_key = BN_new();
945.                   pub_key_len = BN_num_bits(dh->p);
946.                   bn_wexpand(pub_key, dh->p->top);

crypto/bn/bn_lib.c:298:1: start of procedure BN_new()
  296.   	}
  297.   
  298. > BIGNUM *BN_new(void)
  299.   	{
  300.   	BIGNUM *ret;

crypto/bn/bn_lib.c:302:6: 
  300.   	BIGNUM *ret;
  301.   
  302. > 	if ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)
  303.   		{
  304.   		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);

crypto/mem.c:291:1: start of procedure CRYPTO_malloc()
    289.   	}
    290.   
    291. > void *CRYPTO_malloc(int num, const char *file, int line)
    292.   	{
    293.   	void *ret = NULL;

crypto/mem.c:293:2: 
    291.   void *CRYPTO_malloc(int num, const char *file, int line)
    292.   	{
    293. > 	void *ret = NULL;
    294.   	extern unsigned char cleanse_ctr;
    295.   

crypto/mem.c:296:6: Taking false branch
    294.   	extern unsigned char cleanse_ctr;
    295.   
    296.   	if (num <= 0) return NULL;
                ^
    297.   
    298.   	allow_customize = 0;

crypto/mem.c:298:2: 
    296.   	if (num <= 0) return NULL;
    297.   
    298. > 	allow_customize = 0;
    299.   	if (malloc_debug_func != NULL)
    300.   		{

crypto/mem.c:299:6: Taking true branch
    297.   
    298.   	allow_customize = 0;
    299.   	if (malloc_debug_func != NULL)
                ^
    300.   		{
    301.   		allow_customize_debug = 0;

crypto/mem.c:301:3: 
    299.   	if (malloc_debug_func != NULL)
    300.   		{
    301. > 		allow_customize_debug = 0;
    302.   		malloc_debug_func(NULL, num, file, line, 0);
    303.   		}

crypto/mem.c:302:3: Skipping __function_pointer__(): unresolved function pointer
    300.   		{
    301.   		allow_customize_debug = 0;
    302.   		malloc_debug_func(NULL, num, file, line, 0);
             ^
    303.   		}
    304.   	ret = malloc_ex_func(num,file,line);

crypto/mem.c:304:2: Skipping __function_pointer__(): unresolved function pointer
    302.   		malloc_debug_func(NULL, num, file, line, 0);
    303.   		}
    304.   	ret = malloc_ex_func(num,file,line);
            ^
    305.   #ifdef LEVITTE_DEBUG_MEM
    306.   	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);

crypto/mem.c:308:6: Taking true branch
    306.   	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);
    307.   #endif
    308.   	if (malloc_debug_func != NULL)
                ^
    309.   		malloc_debug_func(ret, num, file, line, 1);
    310.   

crypto/mem.c:309:3: Skipping __function_pointer__(): unresolved function pointer
    307.   #endif
    308.   	if (malloc_debug_func != NULL)
    309.   		malloc_debug_func(ret, num, file, line, 1);
             ^
    310.   
    311.           /* Create a dependency on the value of 'cleanse_ctr' so our memory

crypto/mem.c:314:12: Taking false branch
    312.            * sanitisation function can't be optimised out. NB: We only do
    313.            * this for >2Kb so the overhead doesn't bother us. */
    314.           if(ret && (num > 2048))
                      ^
    315.                   ((unsigned char *)ret)[0] = cleanse_ctr;
    316.   

crypto/mem.c:317:2: 
    315.                   ((unsigned char *)ret)[0] = cleanse_ctr;
    316.   
    317. > 	return ret;
    318.   	}
    319.   

crypto/mem.c:318:2: return from a call to CRYPTO_malloc
    316.   
    317.   	return ret;
    318.   	}
            ^
    319.   
    320.   void *CRYPTO_realloc(void *str, int num, const char *file, int line)

crypto/bn/bn_lib.c:302:6: Taking true branch
  300.   	BIGNUM *ret;
  301.   
  302.   	if ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)
              ^
  303.   		{
  304.   		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:304:3: 
  302.   	if ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)
  303.   		{
  304. > 		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);
  305.   		return(NULL);
  306.   		}

crypto/err/err.c:666:1: start of procedure ERR_put_error()
    664.   /********************************************************/
    665.   
    666. > void ERR_put_error(int lib, int func, int reason, const char *file,
    667.   	     int line)
    668.   	{

crypto/err/err.c:690:2: Skipping ERR_get_state(): empty list of specs
    688.   	}
    689.   #endif
    690.   	es=ERR_get_state();
            ^
    691.   
    692.   	es->top=(es->top+1)%ERR_NUM_ERRORS;

crypto/err/err.c:692:2: 
    690.   	es=ERR_get_state();
    691.   
    692. > 	es->top=(es->top+1)%ERR_NUM_ERRORS;
    693.   	if (es->top == es->bottom)
    694.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;

crypto/err/err.c:693:6: Taking false branch
    691.   
    692.   	es->top=(es->top+1)%ERR_NUM_ERRORS;
    693.   	if (es->top == es->bottom)
                ^
    694.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
    695.   	es->err_flags[es->top]=0;

crypto/err/err.c:695:2: 
    693.   	if (es->top == es->bottom)
    694.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
    695. > 	es->err_flags[es->top]=0;
    696.   	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
    697.   	es->err_file[es->top]=file;

crypto/err/err.c:696:2: 
    694.   		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
    695.   	es->err_flags[es->top]=0;
    696. > 	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
    697.   	es->err_file[es->top]=file;
    698.   	es->err_line[es->top]=line;

crypto/err/err.c:697:2: 
    695.   	es->err_flags[es->top]=0;
    696.   	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
    697. > 	es->err_file[es->top]=file;
    698.   	es->err_line[es->top]=line;
    699.   	err_clear_data(es,es->top);

crypto/err/err.c:698:2: 
    696.   	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
    697.   	es->err_file[es->top]=file;
    698. > 	es->err_line[es->top]=line;
    699.   	err_clear_data(es,es->top);
    700.   	}

crypto/err/err.c:699:2: Taking true branch
    697.   	es->err_file[es->top]=file;
    698.   	es->err_line[es->top]=line;
    699.   	err_clear_data(es,es->top);
            ^
    700.   	}
    701.   

crypto/err/err.c:699:2: Taking false branch
    697.   	es->err_file[es->top]=file;
    698.   	es->err_line[es->top]=line;
    699.   	err_clear_data(es,es->top);
            ^
    700.   	}
    701.   

crypto/err/err.c:699:2: Loop condition is false. Leaving loop
    697.   	es->err_file[es->top]=file;
    698.   	es->err_line[es->top]=line;
    699.   	err_clear_data(es,es->top);
            ^
    700.   	}
    701.   

crypto/err/err.c:700:2: return from a call to ERR_put_error
    698.   	es->err_line[es->top]=line;
    699.   	err_clear_data(es,es->top);
    700.   	}
            ^
    701.   
    702.   void ERR_clear_error(void)

crypto/bn/bn_lib.c:305:3: 
  303.   		{
  304.   		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);
  305. > 		return(NULL);
  306.   		}
  307.   	ret->flags=BN_FLG_MALLOCED;

crypto/bn/bn_lib.c:314:2: return from a call to BN_new
  312.   	bn_check_top(ret);
  313.   	return(ret);
  314.   	}
          ^
  315.   
  316.   /* This is used both by bn_expand2() and bn_dup_expand() */

engines/e_ubsec.c:945:17: 
943.                   {
944.                   pub_key = BN_new();
945. >                 pub_key_len = BN_num_bits(dh->p);
946.                   bn_wexpand(pub_key, dh->p->top);
947.                   if(pub_key == NULL) goto err;

crypto/bn/bn_lib.c:248:1: start of procedure BN_num_bits()
  246.   	}
  247.   
  248. > int BN_num_bits(const BIGNUM *a)
  249.   	{
  250.   	int i = a->top - 1;

crypto/bn/bn_lib.c:250:2: 
  248.   int BN_num_bits(const BIGNUM *a)
  249.   	{
  250. > 	int i = a->top - 1;
  251.   	bn_check_top(a);
  252.   

crypto/bn/bn_lib.c:253:6: Taking false branch
  251.   	bn_check_top(a);
  252.   
  253.   	if (BN_is_zero(a)) return 0;
              ^
  254.   	return ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));
  255.   	}

crypto/bn/bn_lib.c:254:2: Skipping BN_num_bits_word(): empty list of specs
  252.   
  253.   	if (BN_is_zero(a)) return 0;
  254.   	return ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));
          ^
  255.   	}
  256.   

crypto/bn/bn_lib.c:255:2: return from a call to BN_num_bits
  253.   	if (BN_is_zero(a)) return 0;
  254.   	return ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));
  255.   	}
          ^
  256.   
  257.   void BN_clear_free(BIGNUM *a)

engines/e_ubsec.c:946:17: 
944.                   pub_key = BN_new();
945.                   pub_key_len = BN_num_bits(dh->p);
946. >                 bn_wexpand(pub_key, dh->p->top);
947.                   if(pub_key == NULL) goto err;
948.                   }
