engines/ccgost/gost_pmeth.c:552: error: NULL_DEREFERENCE
  pointer `keydata` last assigned on line 551 could be null and is dereferenced by call to `memcpy()` at line 552, column 3.
Showing all 21 steps of the trace


engines/ccgost/gost_pmeth.c:542:1: start of procedure pkey_gost_mac_keygen()
540.   	}	
541.   
542. > static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
543.   	{
544.   		struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);

engines/ccgost/gost_pmeth.c:544:3: 
542.   static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
543.   	{
544. > 		struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
545.   		unsigned char *keydata;
546.   		if (!data->key_set) 

crypto/evp/pmeth_lib.c:460:1: start of procedure EVP_PKEY_CTX_get_data()
  458.   	}
  459.   
  460. > void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
  461.   	{
  462.   	return ctx->data;

crypto/evp/pmeth_lib.c:462:2: 
  460.   void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
  461.   	{
  462. > 	return ctx->data;
  463.   	}
  464.   

crypto/evp/pmeth_lib.c:463:2: return from a call to EVP_PKEY_CTX_get_data
  461.   	{
  462.   	return ctx->data;
  463.   	}
          ^
  464.   
  465.   EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)

engines/ccgost/gost_pmeth.c:546:8: Taking false branch
544.   		struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
545.   		unsigned char *keydata;
546.   		if (!data->key_set) 
              ^
547.   		{
548.   			GOSTerr(GOST_F_PKEY_GOST_MAC_KEYGEN,GOST_R_MAC_KEY_NOT_SET);

engines/ccgost/gost_pmeth.c:551:3: 
549.   			return 0;
550.   		}
551. > 		keydata = OPENSSL_malloc(32);
552.   		memcpy(keydata,data->key,32);
553.   		EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata);

crypto/mem.c:297:1: start of procedure CRYPTO_malloc()
  295.   	}
  296.   
  297. > void *CRYPTO_malloc(int num, const char *file, int line)
  298.   	{
  299.   	void *ret = NULL;

crypto/mem.c:299:2: 
  297.   void *CRYPTO_malloc(int num, const char *file, int line)
  298.   	{
  299. > 	void *ret = NULL;
  300.   
  301.   	if (num <= 0) return NULL;

crypto/mem.c:301:6: Taking false branch
  299.   	void *ret = NULL;
  300.   
  301.   	if (num <= 0) return NULL;
              ^
  302.   
  303.   	allow_customize = 0;

crypto/mem.c:303:2: 
  301.   	if (num <= 0) return NULL;
  302.   
  303. > 	allow_customize = 0;
  304.   	if (malloc_debug_func != NULL)
  305.   		{

crypto/mem.c:304:6: Taking true branch
  302.   
  303.   	allow_customize = 0;
  304.   	if (malloc_debug_func != NULL)
              ^
  305.   		{
  306.   		allow_customize_debug = 0;

crypto/mem.c:306:3: 
  304.   	if (malloc_debug_func != NULL)
  305.   		{
  306. > 		allow_customize_debug = 0;
  307.   		malloc_debug_func(NULL, num, file, line, 0);
  308.   		}

crypto/mem.c:307:3: Skipping __function_pointer__(): unresolved function pointer
  305.   		{
  306.   		allow_customize_debug = 0;
  307.   		malloc_debug_func(NULL, num, file, line, 0);
           ^
  308.   		}
  309.   	ret = malloc_ex_func(num,file,line);

crypto/mem.c:309:2: Skipping __function_pointer__(): unresolved function pointer
  307.   		malloc_debug_func(NULL, num, file, line, 0);
  308.   		}
  309.   	ret = malloc_ex_func(num,file,line);
          ^
  310.   #ifdef LEVITTE_DEBUG_MEM
  311.   	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);

crypto/mem.c:313:6: Taking true branch
  311.   	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);
  312.   #endif
  313.   	if (malloc_debug_func != NULL)
              ^
  314.   		malloc_debug_func(ret, num, file, line, 1);
  315.   

crypto/mem.c:314:3: Skipping __function_pointer__(): unresolved function pointer
  312.   #endif
  313.   	if (malloc_debug_func != NULL)
  314.   		malloc_debug_func(ret, num, file, line, 1);
           ^
  315.   
  316.   #ifndef OPENSSL_CPUID_OBJ

crypto/mem.c:320:12: Taking false branch
  318.            * sanitisation function can't be optimised out. NB: We only do
  319.            * this for >2Kb so the overhead doesn't bother us. */
  320.           if(ret && (num > 2048))
                    ^
  321.   	{	extern unsigned char cleanse_ctr;
  322.                   ((unsigned char *)ret)[0] = cleanse_ctr;

crypto/mem.c:326:2: 
  324.   #endif
  325.   
  326. > 	return ret;
  327.   	}
  328.   char *CRYPTO_strdup(const char *str, const char *file, int line)

crypto/mem.c:327:2: return from a call to CRYPTO_malloc
  325.   
  326.   	return ret;
  327.   	}
          ^
  328.   char *CRYPTO_strdup(const char *str, const char *file, int line)
  329.   	{

engines/ccgost/gost_pmeth.c:552:3: 
550.   		}
551.   		keydata = OPENSSL_malloc(32);
552. > 		memcpy(keydata,data->key,32);
553.   		EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata);
554.   		return 1;
