test/handshake_helper.c:201: error: NULL_DEREFERENCE
  pointer `ex_data` last assigned on line 199 could be null and is dereferenced at line 201, column 5.
Showing all 10 steps of the trace


test/handshake_helper.c:194:1: start of procedure do_not_call_session_ticket_cb()
192.   }
193.   
194. > static int do_not_call_session_ticket_cb(SSL *s, unsigned char *key_name,
195.                                            unsigned char *iv,
196.                                            EVP_CIPHER_CTX *ctx,

test/handshake_helper.c:199:5: 
197.                                            HMAC_CTX *hctx, int enc)
198.   {
199. >     HANDSHAKE_EX_DATA *ex_data =
200.           (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
201.       ex_data->session_ticket_do_not_call = 1;

ssl/ssl_lib.c:3525:1: start of procedure SSL_get_ex_data()
  3523.   }
  3524.   
  3525. > void *SSL_get_ex_data(const SSL *s, int idx)
  3526.   {
  3527.       return (CRYPTO_get_ex_data(&s->ex_data, idx));

ssl/ssl_lib.c:3527:5: 
  3525.   void *SSL_get_ex_data(const SSL *s, int idx)
  3526.   {
  3527. >     return (CRYPTO_get_ex_data(&s->ex_data, idx));
  3528.   }
  3529.   

crypto/ex_data.c:374:1: start of procedure CRYPTO_get_ex_data()
    372.    * particular index in the class used by this variable
    373.    */
    374. > void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    375.   {
    376.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))

crypto/ex_data.c:376:9: Taking true branch
    374.   void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    375.   {
    376.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))
                   ^
    377.           return NULL;
    378.       return sk_void_value(ad->sk, idx);

crypto/ex_data.c:377:9: 
    375.   {
    376.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))
    377. >         return NULL;
    378.       return sk_void_value(ad->sk, idx);
    379.   }

crypto/ex_data.c:379:1: return from a call to CRYPTO_get_ex_data
    377.           return NULL;
    378.       return sk_void_value(ad->sk, idx);
    379. > }

ssl/ssl_lib.c:3528:1: return from a call to SSL_get_ex_data
  3526.   {
  3527.       return (CRYPTO_get_ex_data(&s->ex_data, idx));
  3528. > }
  3529.   
  3530.   int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)

test/handshake_helper.c:201:5: 
199.       HANDSHAKE_EX_DATA *ex_data =
200.           (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
201. >     ex_data->session_ticket_do_not_call = 1;
202.       return 0;
203.   }
