test/drbgtest.c:150: error: NULL_DEREFERENCE
  pointer `t` last assigned on line 148 could be null and is dereferenced at line 150, column 5.
Showing all 10 steps of the trace


test/drbgtest.c:145:1: start of procedure kat_nonce()
143.   }
144.   
145. > static size_t kat_nonce(RAND_DRBG *drbg, unsigned char **pout,
146.                           int entropy, size_t min_len, size_t max_len)
147.   {

test/drbgtest.c:148:5: 
146.                           int entropy, size_t min_len, size_t max_len)
147.   {
148. >     TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_ex_data(drbg, app_data_index);
149.   
150.       t->noncecnt++;

crypto/rand/drbg_lib.c:911:1: start of procedure RAND_DRBG_get_ex_data()
  909.   }
  910.   
  911. > void *RAND_DRBG_get_ex_data(const RAND_DRBG *drbg, int idx)
  912.   {
  913.       return CRYPTO_get_ex_data(&drbg->ex_data, idx);

crypto/rand/drbg_lib.c:913:5: 
  911.   void *RAND_DRBG_get_ex_data(const RAND_DRBG *drbg, int idx)
  912.   {
  913. >     return CRYPTO_get_ex_data(&drbg->ex_data, idx);
  914.   }
  915.   

crypto/ex_data.c:394:1: start of procedure CRYPTO_get_ex_data()
    392.    * particular index in the class used by this variable
    393.    */
    394. > void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    395.   {
    396.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))

crypto/ex_data.c:396:9: Taking true branch
    394.   void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    395.   {
    396.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))
                   ^
    397.           return NULL;
    398.       return sk_void_value(ad->sk, idx);

crypto/ex_data.c:397:9: 
    395.   {
    396.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))
    397. >         return NULL;
    398.       return sk_void_value(ad->sk, idx);
    399.   }

crypto/ex_data.c:399:1: return from a call to CRYPTO_get_ex_data
    397.           return NULL;
    398.       return sk_void_value(ad->sk, idx);
    399. > }

crypto/rand/drbg_lib.c:914:1: return from a call to RAND_DRBG_get_ex_data
  912.   {
  913.       return CRYPTO_get_ex_data(&drbg->ex_data, idx);
  914. > }
  915.   
  916.   

test/drbgtest.c:150:5: 
148.       TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_ex_data(drbg, app_data_index);
149.   
150. >     t->noncecnt++;
151.       *pout = (unsigned char *)t->nonce;
152.       return t->noncelen;

static size_t kat_nonce(RAND_DRBG *drbg, unsigned char **pout,
                        int entropy, size_t min_len, size_t max_len)
{
    TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_ex_data(drbg, app_data_index);
    t->noncecnt++;
    *pout = (unsigned char *)t->nonce;
    return t->noncelen;
}
['static size_t kat_nonce(RAND_DRBG *drbg, unsigned char **pout,\n                        int entropy, size_t min_len, size_t max_len)\n{\n    TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_ex_data(drbg, app_data_index);\n    t->noncecnt++;\n    *pout = (unsigned char *)t->nonce;\n    return t->noncelen;\n}', 'void *RAND_DRBG_get_ex_data(const RAND_DRBG *drbg, int idx)\n{\n    return CRYPTO_get_ex_data(&drbg->ex_data, idx);\n}', 'void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)\n{\n    if (ad->sk == NULL || idx >= sk_void_num(ad->sk))\n        return NULL;\n    return sk_void_value(ad->sk, idx);\n}']