engines/e_ubsec.c:944: error: NULL_DEREFERENCE
  pointer `pub_key` last assigned on line 942 could be null and is dereferenced at line 944, column 17.
Showing all 45 steps of the trace


engines/e_ubsec.c:909:1: start of procedure ubsec_dh_generate_key()
907.           }
908.   
909. > static int ubsec_dh_generate_key (DH *dh)
910.           {
911.           int      ret               = 0,

engines/e_ubsec.c:911:9: 
909.   static int ubsec_dh_generate_key (DH *dh)
910.           {
911. >         int      ret               = 0,
912.                    random_bits       = 0,
913.                    pub_key_len       = 0,

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

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

engines/e_ubsec.c:924:13: Taking false branch
922.            */
923.   
924.           if (dh->priv_key == NULL)
                   ^
925.                   {
926.                   priv_key = BN_new();

engines/e_ubsec.c:937:17: 
935.           else
936.                   {
937. >                 priv_key = dh->priv_key;
938.                   }
939.   

engines/e_ubsec.c:940:13: Taking true branch
938.                   }
939.   
940.           if (dh->pub_key == NULL)
                   ^
941.                   {
942.                   pub_key = BN_new();

engines/e_ubsec.c:942:17: 
940.           if (dh->pub_key == NULL)
941.                   {
942. >                 pub_key = BN_new();
943.                   pub_key_len = BN_num_bits(dh->p);
944.                   bn_wexpand(pub_key, dh->p->top);

crypto/bn/bn_lib.c:291:1: start of procedure BN_new()
  289.   	}
  290.   
  291. > BIGNUM *BN_new(void)
  292.   	{
  293.   	BIGNUM *ret;

crypto/bn/bn_lib.c:295:6: 
  293.   	BIGNUM *ret;
  294.   
  295. > 	if ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)
  296.   		{
  297.   		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);

crypto/mem.c:289:1: start of procedure CRYPTO_malloc()
    287.   	}
    288.   
    289. > void *CRYPTO_malloc(int num, const char *file, int line)
    290.   	{
    291.   	void *ret = NULL;

crypto/mem.c:291:2: 
    289.   void *CRYPTO_malloc(int num, const char *file, int line)
    290.   	{
    291. > 	void *ret = NULL;
    292.   	extern unsigned char cleanse_ctr;
    293.   

crypto/mem.c:294:2: 
    292.   	extern unsigned char cleanse_ctr;
    293.   
    294. > 	allow_customize = 0;
    295.   	if (malloc_debug_func != NULL)
    296.   		{

crypto/mem.c:295:6: Taking true branch
    293.   
    294.   	allow_customize = 0;
    295.   	if (malloc_debug_func != NULL)
                ^
    296.   		{
    297.   		allow_customize_debug = 0;

crypto/mem.c:297:3: 
    295.   	if (malloc_debug_func != NULL)
    296.   		{
    297. > 		allow_customize_debug = 0;
    298.   		malloc_debug_func(NULL, num, file, line, 0);
    299.   		}

crypto/mem.c:298:3: Skipping __function_pointer__(): unresolved function pointer
    296.   		{
    297.   		allow_customize_debug = 0;
    298.   		malloc_debug_func(NULL, num, file, line, 0);
             ^
    299.   		}
    300.   	ret = malloc_ex_func(num,file,line);

crypto/mem.c:300:2: Skipping __function_pointer__(): unresolved function pointer
    298.   		malloc_debug_func(NULL, num, file, line, 0);
    299.   		}
    300.   	ret = malloc_ex_func(num,file,line);
            ^
    301.   #ifdef LEVITTE_DEBUG_MEM
    302.   	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);

crypto/mem.c:304:6: Taking true branch
    302.   	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);
    303.   #endif
    304.   	if (malloc_debug_func != NULL)
                ^
    305.   		malloc_debug_func(ret, num, file, line, 1);
    306.   

crypto/mem.c:305:3: Skipping __function_pointer__(): unresolved function pointer
    303.   #endif
    304.   	if (malloc_debug_func != NULL)
    305.   		malloc_debug_func(ret, num, file, line, 1);
             ^
    306.   
    307.           /* Create a dependency on the value of 'cleanse_ctr' so our memory

crypto/mem.c:310:12: Taking false branch
    308.            * sanitisation function can't be optimised out. NB: We only do
    309.            * this for >2Kb so the overhead doesn't bother us. */
    310.           if(ret && (num > 2048))
                      ^
    311.                   ((unsigned char *)ret)[0] = cleanse_ctr;
    312.   

crypto/mem.c:313:2: 
    311.                   ((unsigned char *)ret)[0] = cleanse_ctr;
    312.   
    313. > 	return ret;
    314.   	}
    315.   

crypto/mem.c:314:2: return from a call to CRYPTO_malloc
    312.   
    313.   	return ret;
    314.   	}
            ^
    315.   
    316.   void *CRYPTO_realloc(void *str, int num, const char *file, int line)

crypto/bn/bn_lib.c:295:6: Taking true branch
  293.   	BIGNUM *ret;
  294.   
  295.   	if ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)
              ^
  296.   		{
  297.   		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:297:3: 
  295.   	if ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)
  296.   		{
  297. > 		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);
  298.   		return(NULL);
  299.   		}

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)

crypto/bn/bn_lib.c:298:3: 
  296.   		{
  297.   		BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);
  298. > 		return(NULL);
  299.   		}
  300.   	ret->flags=BN_FLG_MALLOCED;

crypto/bn/bn_lib.c:306:2: return from a call to BN_new
  304.   	ret->d=NULL;
  305.   	return(ret);
  306.   	}
          ^
  307.   
  308.   /* This is used both by bn_expand2() and bn_dup_expand() */

engines/e_ubsec.c:943:17: 
941.                   {
942.                   pub_key = BN_new();
943. >                 pub_key_len = BN_num_bits(dh->p);
944.                   bn_wexpand(pub_key, dh->p->top);
945.                   if(pub_key == NULL) goto err;

crypto/bn/bn_lib.c:245:1: start of procedure BN_num_bits()
  243.   	}
  244.   
  245. > int BN_num_bits(const BIGNUM *a)
  246.   	{
  247.   	BN_ULONG l;

crypto/bn/bn_lib.c:252:6: Taking false branch
  250.   	bn_check_top(a);
  251.   
  252.   	if (a->top == 0) return(0);
              ^
  253.   	l=a->d[a->top-1];
  254.   	assert(l != 0);

crypto/bn/bn_lib.c:253:2: 
  251.   
  252.   	if (a->top == 0) return(0);
  253. > 	l=a->d[a->top-1];
  254.   	assert(l != 0);
  255.   	i=(a->top-1)*BN_BITS2;

crypto/bn/bn_lib.c:254:2: 
  252.   	if (a->top == 0) return(0);
  253.   	l=a->d[a->top-1];
  254. > 	assert(l != 0);
  255.   	i=(a->top-1)*BN_BITS2;
  256.   	return(i+BN_num_bits_word(l));

crypto/bn/bn_lib.c:255:2: 
  253.   	l=a->d[a->top-1];
  254.   	assert(l != 0);
  255. > 	i=(a->top-1)*BN_BITS2;
  256.   	return(i+BN_num_bits_word(l));
  257.   	}

crypto/bn/bn_lib.c:256:2: Skipping BN_num_bits_word(): empty list of specs
  254.   	assert(l != 0);
  255.   	i=(a->top-1)*BN_BITS2;
  256.   	return(i+BN_num_bits_word(l));
          ^
  257.   	}
  258.   

crypto/bn/bn_lib.c:257:2: return from a call to BN_num_bits
  255.   	i=(a->top-1)*BN_BITS2;
  256.   	return(i+BN_num_bits_word(l));
  257.   	}
          ^
  258.   
  259.   void BN_clear_free(BIGNUM *a)

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