test/evp_test.c:861: error: NULL_DEREFERENCE
  pointer `mdat` last assigned on line 860 could be null and is dereferenced at line 861, column 5.
Showing all 16 steps of the trace


test/evp_test.c:829:1: start of procedure mac_test_init()
827.   } MAC_DATA;
828.   
829. > static int mac_test_init(EVP_TEST *t, const char *alg)
830.   {
831.       int type;

test/evp_test.c:834:9: Taking true branch
832.       MAC_DATA *mdat;
833.   
834.       if (strcmp(alg, "HMAC") == 0) {
               ^
835.           type = EVP_PKEY_HMAC;
836.       } else if (strcmp(alg, "CMAC") == 0) {

test/evp_test.c:835:9: 
833.   
834.       if (strcmp(alg, "HMAC") == 0) {
835. >         type = EVP_PKEY_HMAC;
836.       } else if (strcmp(alg, "CMAC") == 0) {
837.   #ifndef OPENSSL_NO_CMAC

test/evp_test.c:860:5: 
858.           return 0;
859.   
860. >     mdat = OPENSSL_zalloc(sizeof(*mdat));
861.       mdat->type = type;
862.       t->data = mdat;

crypto/mem.c:197:1: start of procedure CRYPTO_zalloc()
  195.   }
  196.   
  197. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
  198.   {
  199.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:199:5: 
  197.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
  198.   {
  199. >     void *ret = CRYPTO_malloc(num, file, line);
  200.   
  201.       FAILTEST();

crypto/mem.c:169:1: start of procedure CRYPTO_malloc()
    167.   #endif
    168.   
    169. > void *CRYPTO_malloc(size_t num, const char *file, int line)
    170.   {
    171.       void *ret = NULL;

crypto/mem.c:171:5: 
    169.   void *CRYPTO_malloc(size_t num, const char *file, int line)
    170.   {
    171. >     void *ret = NULL;
    172.   
    173.       if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)

crypto/mem.c:173:9: Taking true branch
    171.       void *ret = NULL;
    172.   
    173.       if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)
                   ^
    174.           return malloc_impl(num, file, line);
    175.   

crypto/mem.c:173:32: Taking true branch
    171.       void *ret = NULL;
    172.   
    173.       if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)
                                          ^
    174.           return malloc_impl(num, file, line);
    175.   

crypto/mem.c:174:9: Skipping __function_pointer__(): unresolved function pointer
    172.   
    173.       if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)
    174.           return malloc_impl(num, file, line);
                   ^
    175.   
    176.       if (num == 0)

crypto/mem.c:195:1: return from a call to CRYPTO_malloc
    193.   
    194.       return ret;
    195. > }
    196.   
    197.   void *CRYPTO_zalloc(size_t num, const char *file, int line)

crypto/mem.c:202:9: Taking false branch
  200.   
  201.       FAILTEST();
  202.       if (ret != NULL)
                 ^
  203.           memset(ret, 0, num);
  204.       return ret;

crypto/mem.c:204:5: 
  202.       if (ret != NULL)
  203.           memset(ret, 0, num);
  204. >     return ret;
  205.   }
  206.   

crypto/mem.c:205:1: return from a call to CRYPTO_zalloc
  203.           memset(ret, 0, num);
  204.       return ret;
  205. > }
  206.   
  207.   void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)

test/evp_test.c:861:5: 
859.   
860.       mdat = OPENSSL_zalloc(sizeof(*mdat));
861. >     mdat->type = type;
862.       t->data = mdat;
863.       return 1;

static int mac_test_init(EVP_TEST *t, const char *alg)
{
    int type;
    MAC_DATA *mdat;
    if (strcmp(alg, "HMAC") == 0) {
        type = EVP_PKEY_HMAC;
    } else if (strcmp(alg, "CMAC") == 0) {
#ifndef OPENSSL_NO_CMAC
        type = EVP_PKEY_CMAC;
#else
        t->skip = 1;
        return 1;
#endif
    } else if (strcmp(alg, "Poly1305") == 0) {
#ifndef OPENSSL_NO_POLY1305
        type = EVP_PKEY_POLY1305;
#else
        t->skip = 1;
        return 1;
#endif
    } else if (strcmp(alg, "SipHash") == 0) {
#ifndef OPENSSL_NO_SIPHASH
        type = EVP_PKEY_SIPHASH;
#else
        t->skip = 1;
        return 1;
#endif
    } else
        return 0;
    mdat = OPENSSL_zalloc(sizeof(*mdat));
    mdat->type = type;
    t->data = mdat;
    return 1;
}
['static int mac_test_init(EVP_TEST *t, const char *alg)\n{\n    int type;\n    MAC_DATA *mdat;\n    if (strcmp(alg, "HMAC") == 0) {\n        type = EVP_PKEY_HMAC;\n    } else if (strcmp(alg, "CMAC") == 0) {\n#ifndef OPENSSL_NO_CMAC\n        type = EVP_PKEY_CMAC;\n#else\n        t->skip = 1;\n        return 1;\n#endif\n    } else if (strcmp(alg, "Poly1305") == 0) {\n#ifndef OPENSSL_NO_POLY1305\n        type = EVP_PKEY_POLY1305;\n#else\n        t->skip = 1;\n        return 1;\n#endif\n    } else if (strcmp(alg, "SipHash") == 0) {\n#ifndef OPENSSL_NO_SIPHASH\n        type = EVP_PKEY_SIPHASH;\n#else\n        t->skip = 1;\n        return 1;\n#endif\n    } else\n        return 0;\n    mdat = OPENSSL_zalloc(sizeof(*mdat));\n    mdat->type = type;\n    t->data = mdat;\n    return 1;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n    void *ret = CRYPTO_malloc(num, file, line);\n    FAILTEST();\n    if (ret != NULL)\n        memset(ret, 0, num);\n    return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n    void *ret = NULL;\n    if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n        return malloc_impl(num, file, line);\n    if (num == 0)\n        return NULL;\n    FAILTEST();\n    allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n    if (call_malloc_debug) {\n        CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n        ret = malloc(num);\n        CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n    } else {\n        ret = malloc(num);\n    }\n#else\n    osslargused(file); osslargused(line);\n    ret = malloc(num);\n#endif\n    return ret;\n}']