apps/s_client.c:2501: error: NULL_DEREFERENCE
  pointer `generated_supp_data` last assigned on line 2500 could be null and is dereferenced by call to `memcpy()` at line 2501, column 4.
Showing all 20 steps of the trace


apps/s_client.c:2489:1: start of procedure auth_suppdata_generate_cb()
2487.   	}
2488.   
2489. > static int auth_suppdata_generate_cb(SSL *s, unsigned short supp_data_type,
2490.   				     const unsigned char **out,
2491.   				     unsigned short *outlen, void *arg)

apps/s_client.c:2493:6: Taking true branch
2491.   				     unsigned short *outlen, void *arg)
2492.   	{
2493.   	if (c_auth && server_provided_client_authz && server_provided_server_authz)
             ^
2494.   		{
2495.   		/*if auth_require_reneg flag is set, only send supplemental data if

apps/s_client.c:2493:16: Taking true branch
2491.   				     unsigned short *outlen, void *arg)
2492.   	{
2493.   	if (c_auth && server_provided_client_authz && server_provided_server_authz)
                       ^
2494.   		{
2495.   		/*if auth_require_reneg flag is set, only send supplemental data if

apps/s_client.c:2493:48: Taking true branch
2491.   				     unsigned short *outlen, void *arg)
2492.   	{
2493.   	if (c_auth && server_provided_client_authz && server_provided_server_authz)
                                                       ^
2494.   		{
2495.   		/*if auth_require_reneg flag is set, only send supplemental data if

apps/s_client.c:2497:8: Taking true branch
2495.   		/*if auth_require_reneg flag is set, only send supplemental data if
2496.   		  renegotiation has occurred */
2497.   		if (!c_auth_require_reneg
               ^
2498.   		    || (c_auth_require_reneg && SSL_num_renegotiations(s)))
2499.   			{

apps/s_client.c:2500:4: 
2498.   		    || (c_auth_require_reneg && SSL_num_renegotiations(s)))
2499.   			{
2500. > 			generated_supp_data = OPENSSL_malloc(10);
2501.   			memcpy(generated_supp_data, "5432154321", 10);
2502.   			*out = generated_supp_data;

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

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

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

crypto/mem.c:301:2: 
  299.   	if (num <= 0) return NULL;
  300.   
  301. > 	allow_customize = 0;
  302.   	if (malloc_debug_func != NULL)
  303.   		{

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

crypto/mem.c:304:3: 
  302.   	if (malloc_debug_func != NULL)
  303.   		{
  304. > 		allow_customize_debug = 0;
  305.   		malloc_debug_func(NULL, num, file, line, 0);
  306.   		}

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

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

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

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

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

crypto/mem.c:324:2: 
  322.   #endif
  323.   
  324. > 	return ret;
  325.   	}
  326.   char *CRYPTO_strdup(const char *str, const char *file, int line)

crypto/mem.c:325:2: return from a call to CRYPTO_malloc
  323.   
  324.   	return ret;
  325.   	}
          ^
  326.   char *CRYPTO_strdup(const char *str, const char *file, int line)
  327.   	{

apps/s_client.c:2501:4: 
2499.   			{
2500.   			generated_supp_data = OPENSSL_malloc(10);
2501. > 			memcpy(generated_supp_data, "5432154321", 10);
2502.   			*out = generated_supp_data;
2503.   			*outlen = 10;
