engines/ccgost/gost_pmeth.c:642: error: NULL_DEREFERENCE
  pointer `keydata` last assigned on line 641 could be null and is dereferenced by call to `memcpy()` at line 642, column 3.
Showing all 21 steps of the trace


engines/ccgost/gost_pmeth.c:632:1: start of procedure pkey_gost_mac_keygen()
630.   	}	
631.   
632. > static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
633.   	{
634.   		struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);

engines/ccgost/gost_pmeth.c:634:3: 
632.   static int pkey_gost_mac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
633.   	{
634. > 		struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
635.   		unsigned char *keydata;
636.   		if (!data->key_set) 

crypto/evp/pmeth_lib.c:383:1: start of procedure EVP_PKEY_CTX_get_data()
  381.   	}
  382.   
  383. > void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
  384.   	{
  385.   	return ctx->data;

crypto/evp/pmeth_lib.c:385:2: 
  383.   void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
  384.   	{
  385. > 	return ctx->data;
  386.   	}
  387.   

crypto/evp/pmeth_lib.c:386:2: return from a call to EVP_PKEY_CTX_get_data
  384.   	{
  385.   	return ctx->data;
  386.   	}
          ^
  387.   
  388.   EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)

engines/ccgost/gost_pmeth.c:636:8: Taking false branch
634.   		struct gost_mac_pmeth_data *data = EVP_PKEY_CTX_get_data(ctx);
635.   		unsigned char *keydata;
636.   		if (!data->key_set) 
              ^
637.   		{
638.   			GOSTerr(GOST_F_PKEY_GOST_MAC_KEYGEN,GOST_R_MAC_KEY_NOT_SET);

engines/ccgost/gost_pmeth.c:641:3: 
639.   			return 0;
640.   		}
641. > 		keydata = OPENSSL_malloc(32);
642.   		memcpy(keydata,data->key,32);
643.   		EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata);

crypto/mem.c:294:1: start of procedure CRYPTO_malloc()
  292.   	}
  293.   
  294. > void *CRYPTO_malloc(int num, const char *file, int line)
  295.   	{
  296.   	void *ret = NULL;

crypto/mem.c:296:2: 
  294.   void *CRYPTO_malloc(int num, const char *file, int line)
  295.   	{
  296. > 	void *ret = NULL;
  297.   
  298.   	if (num <= 0) return NULL;

crypto/mem.c:298:6: Taking false branch
  296.   	void *ret = NULL;
  297.   
  298.   	if (num <= 0) return NULL;
              ^
  299.   
  300.   	allow_customize = 0;

crypto/mem.c:300:2: 
  298.   	if (num <= 0) return NULL;
  299.   
  300. > 	allow_customize = 0;
  301.   	if (malloc_debug_func != NULL)
  302.   		{

crypto/mem.c:301:6: Taking true branch
  299.   
  300.   	allow_customize = 0;
  301.   	if (malloc_debug_func != NULL)
              ^
  302.   		{
  303.   		allow_customize_debug = 0;

crypto/mem.c:303:3: 
  301.   	if (malloc_debug_func != NULL)
  302.   		{
  303. > 		allow_customize_debug = 0;
  304.   		malloc_debug_func(NULL, num, file, line, 0);
  305.   		}

crypto/mem.c:304:3: Skipping __function_pointer__(): unresolved function pointer
  302.   		{
  303.   		allow_customize_debug = 0;
  304.   		malloc_debug_func(NULL, num, file, line, 0);
           ^
  305.   		}
  306.   	ret = malloc_ex_func(num,file,line);

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

crypto/mem.c:310:6: Taking true branch
  308.   	fprintf(stderr, "LEVITTE_DEBUG_MEM:         > 0x%p (%d)\n", ret, num);
  309.   #endif
  310.   	if (malloc_debug_func != NULL)
              ^
  311.   		malloc_debug_func(ret, num, file, line, 1);
  312.   

crypto/mem.c:311:3: Skipping __function_pointer__(): unresolved function pointer
  309.   #endif
  310.   	if (malloc_debug_func != NULL)
  311.   		malloc_debug_func(ret, num, file, line, 1);
           ^
  312.   
  313.   #ifndef OPENSSL_CPUID_OBJ

crypto/mem.c:317:12: Taking false branch
  315.            * sanitisation function can't be optimised out. NB: We only do
  316.            * this for >2Kb so the overhead doesn't bother us. */
  317.           if(ret && (num > 2048))
                    ^
  318.   	{	extern unsigned char cleanse_ctr;
  319.                   ((unsigned char *)ret)[0] = cleanse_ctr;

crypto/mem.c:323:2: 
  321.   #endif
  322.   
  323. > 	return ret;
  324.   	}
  325.   

crypto/mem.c:324:2: return from a call to CRYPTO_malloc
  322.   
  323.   	return ret;
  324.   	}
          ^
  325.   
  326.   void *CRYPTO_realloc(void *str, int num, const char *file, int line)

engines/ccgost/gost_pmeth.c:642:3: 
640.   		}
641.   		keydata = OPENSSL_malloc(32);
642. > 		memcpy(keydata,data->key,32);
643.   		EVP_PKEY_assign(pkey, NID_id_Gost28147_89_MAC, keydata);
644.   		return 1;
