test/evp_test.c:1558: error: NULL_DEREFERENCE
  pointer `edata` last assigned on line 1551 could be null and is dereferenced at line 1558, column 9.
Showing all 20 steps of the trace


test/evp_test.c:1549:1: start of procedure encode_test_init()
1547.   };
1548.   
1549. > static int encode_test_init(struct evp_test *t, const char *encoding)
1550.   {
1551.       struct encode_data *edata = OPENSSL_zalloc(sizeof(*edata));

test/evp_test.c:1551:5: 
1549.   static int encode_test_init(struct evp_test *t, const char *encoding)
1550.   {
1551. >     struct encode_data *edata = OPENSSL_zalloc(sizeof(*edata));
1552.   
1553.       if (strcmp(encoding, "canonical") == 0) {

crypto/mem.c:157:1: start of procedure CRYPTO_zalloc()
  155.   }
  156.   
  157. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
  158.   {
  159.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:159:5: 
  157.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
  158.   {
  159. >     void *ret = CRYPTO_malloc(num, file, line);
  160.   
  161.       if (ret != NULL)

crypto/mem.c:120:1: start of procedure CRYPTO_malloc()
    118.   }
    119.   
    120. > void *CRYPTO_malloc(size_t num, const char *file, int line)
    121.   {
    122.       void *ret = NULL;

crypto/mem.c:122:5: 
    120.   void *CRYPTO_malloc(size_t num, const char *file, int line)
    121.   {
    122. >     void *ret = NULL;
    123.   
    124.       if (num <= 0)

crypto/mem.c:124:9: Taking false branch
    122.       void *ret = NULL;
    123.   
    124.       if (num <= 0)
                   ^
    125.           return NULL;
    126.   

crypto/mem.c:127:5: 
    125.           return NULL;
    126.   
    127. >     allow_customize = 0;
    128.   #ifdef CRYPTO_MDEBUG
    129.       if (call_malloc_debug) {

crypto/mem.c:137:5: 
    135.       }
    136.   #else
    137. >     (void)file;
    138.       (void)line;
    139.       ret = malloc(num);

crypto/mem.c:138:5: 
    136.   #else
    137.       (void)file;
    138. >     (void)line;
    139.       ret = malloc(num);
    140.   #endif

crypto/mem.c:139:5: 
    137.       (void)file;
    138.       (void)line;
    139. >     ret = malloc(num);
    140.   #endif
    141.   

crypto/mem.c:154:5: 
    152.   #endif
    153.   
    154. >     return ret;
    155.   }
    156.   

crypto/mem.c:155:1: return from a call to CRYPTO_malloc
    153.   
    154.       return ret;
    155. > }
    156.   
    157.   void *CRYPTO_zalloc(size_t num, const char *file, int line)

crypto/mem.c:161:9: Taking false branch
  159.       void *ret = CRYPTO_malloc(num, file, line);
  160.   
  161.       if (ret != NULL)
                 ^
  162.           memset(ret, 0, num);
  163.       return ret;

crypto/mem.c:163:5: 
  161.       if (ret != NULL)
  162.           memset(ret, 0, num);
  163. >     return ret;
  164.   }
  165.   

crypto/mem.c:164:1: return from a call to CRYPTO_zalloc
  162.           memset(ret, 0, num);
  163.       return ret;
  164. > }
  165.   
  166.   void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)

test/evp_test.c:1553:9: Taking false branch
1551.       struct encode_data *edata = OPENSSL_zalloc(sizeof(*edata));
1552.   
1553.       if (strcmp(encoding, "canonical") == 0) {
                ^
1554.           edata->encoding = BASE64_CANONICAL_ENCODING;
1555.       } else if (strcmp(encoding, "valid") == 0) {

test/evp_test.c:1555:16: Taking false branch
1553.       if (strcmp(encoding, "canonical") == 0) {
1554.           edata->encoding = BASE64_CANONICAL_ENCODING;
1555.       } else if (strcmp(encoding, "valid") == 0) {
                       ^
1556.           edata->encoding = BASE64_VALID_ENCODING;
1557.       } else if (strcmp(encoding, "invalid") == 0) {

test/evp_test.c:1557:16: Taking true branch
1555.       } else if (strcmp(encoding, "valid") == 0) {
1556.           edata->encoding = BASE64_VALID_ENCODING;
1557.       } else if (strcmp(encoding, "invalid") == 0) {
                       ^
1558.           edata->encoding = BASE64_INVALID_ENCODING;
1559.           t->expected_err = OPENSSL_strdup("DECODE_ERROR");

test/evp_test.c:1558:9: 
1556.           edata->encoding = BASE64_VALID_ENCODING;
1557.       } else if (strcmp(encoding, "invalid") == 0) {
1558. >         edata->encoding = BASE64_INVALID_ENCODING;
1559.           t->expected_err = OPENSSL_strdup("DECODE_ERROR");
1560.           if (t->expected_err == NULL)

static int encode_test_init(struct evp_test *t, const char *encoding)
{
    struct encode_data *edata = OPENSSL_zalloc(sizeof(*edata));
    if (strcmp(encoding, "canonical") == 0) {
        edata->encoding = BASE64_CANONICAL_ENCODING;
    } else if (strcmp(encoding, "valid") == 0) {
        edata->encoding = BASE64_VALID_ENCODING;
    } else if (strcmp(encoding, "invalid") == 0) {
        edata->encoding = BASE64_INVALID_ENCODING;
        t->expected_err = OPENSSL_strdup("DECODE_ERROR");
        if (t->expected_err == NULL)
            return 0;
    } else {
        fprintf(stderr, "Bad encoding: %s. Should be one of "
                "{canonical, valid, invalid}\n", encoding);
        return 0;
    }
    t->data = edata;
    return 1;
}
['static int encode_test_init(struct evp_test *t, const char *encoding)\n{\n    struct encode_data *edata = OPENSSL_zalloc(sizeof(*edata));\n    if (strcmp(encoding, "canonical") == 0) {\n        edata->encoding = BASE64_CANONICAL_ENCODING;\n    } else if (strcmp(encoding, "valid") == 0) {\n        edata->encoding = BASE64_VALID_ENCODING;\n    } else if (strcmp(encoding, "invalid") == 0) {\n        edata->encoding = BASE64_INVALID_ENCODING;\n        t->expected_err = OPENSSL_strdup("DECODE_ERROR");\n        if (t->expected_err == NULL)\n            return 0;\n    } else {\n        fprintf(stderr, "Bad encoding: %s. Should be one of "\n                "{canonical, valid, invalid}\\n", encoding);\n        return 0;\n    }\n    t->data = edata;\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    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 (num <= 0)\n        return NULL;\n    allow_customize = 0;\n#ifdef 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    (void)file;\n    (void)line;\n    ret = malloc(num);\n#endif\n#ifndef OPENSSL_CPUID_OBJ\n    if (ret && (num > 2048)) {\n        extern unsigned char cleanse_ctr;\n        ((unsigned char *)ret)[0] = cleanse_ctr;\n    }\n#endif\n    return ret;\n}']