crypto/evp/digest.c:127: error: NULL_DEREFERENCE
  pointer `ctx` last assigned on line 125 could be null and is dereferenced by call to `EVP_MD_CTX_init()` at line 127, column 2.
Showing all 18 steps of the trace


crypto/evp/digest.c:123:1: start of procedure EVP_MD_CTX_create()
121.   	}
122.   
123. > EVP_MD_CTX *EVP_MD_CTX_create(void)
124.   	{
125.   	EVP_MD_CTX *ctx=OPENSSL_malloc(sizeof *ctx);

crypto/evp/digest.c:125:2: 
123.   EVP_MD_CTX *EVP_MD_CTX_create(void)
124.   	{
125. > 	EVP_MD_CTX *ctx=OPENSSL_malloc(sizeof *ctx);
126.   
127.   	EVP_MD_CTX_init(ctx);

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/evp/digest.c:127:2: 
125.   	EVP_MD_CTX *ctx=OPENSSL_malloc(sizeof *ctx);
126.   
127. > 	EVP_MD_CTX_init(ctx);
128.   
129.   	return ctx;

crypto/evp/digest.c:118:1: start of procedure EVP_MD_CTX_init()
  116.   #include <openssl/engine.h>
  117.   
  118. > void EVP_MD_CTX_init(EVP_MD_CTX *ctx)
  119.   	{
  120.   	memset(ctx,'\0',sizeof *ctx);

crypto/evp/digest.c:120:2: 
  118.   void EVP_MD_CTX_init(EVP_MD_CTX *ctx)
  119.   	{
  120. > 	memset(ctx,'\0',sizeof *ctx);
  121.   	}
  122.   

crypto/evp/digest.c:121:2: return from a call to EVP_MD_CTX_init
  119.   	{
  120.   	memset(ctx,'\0',sizeof *ctx);
  121.   	}
          ^
  122.   
  123.   EVP_MD_CTX *EVP_MD_CTX_create(void)
