test/handshake_helper.c:316: error: NULL_DEREFERENCE
  pointer `ex_data` last assigned on line 314 could be null and is dereferenced at line 316, column 5.
Showing all 10 steps of the trace


test/handshake_helper.c:309:1: start of procedure do_not_call_session_ticket_cb()
307.   }
308.   
309. > static int do_not_call_session_ticket_cb(SSL *s, unsigned char *key_name,
310.                                            unsigned char *iv,
311.                                            EVP_CIPHER_CTX *ctx,

test/handshake_helper.c:314:5: 
312.                                            HMAC_CTX *hctx, int enc)
313.   {
314. >     HANDSHAKE_EX_DATA *ex_data =
315.           (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
316.       ex_data->session_ticket_do_not_call = 1;

ssl/ssl_lib.c:3730:1: start of procedure SSL_get_ex_data()
  3728.   }
  3729.   
  3730. > void *SSL_get_ex_data(const SSL *s, int idx)
  3731.   {
  3732.       return (CRYPTO_get_ex_data(&s->ex_data, idx));

ssl/ssl_lib.c:3732:5: 
  3730.   void *SSL_get_ex_data(const SSL *s, int idx)
  3731.   {
  3732. >     return (CRYPTO_get_ex_data(&s->ex_data, idx));
  3733.   }
  3734.   

crypto/ex_data.c:379:1: start of procedure CRYPTO_get_ex_data()
    377.    * particular index in the class used by this variable
    378.    */
    379. > void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    380.   {
    381.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))

crypto/ex_data.c:381:9: Taking true branch
    379.   void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
    380.   {
    381.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))
                   ^
    382.           return NULL;
    383.       return sk_void_value(ad->sk, idx);

crypto/ex_data.c:382:9: 
    380.   {
    381.       if (ad->sk == NULL || idx >= sk_void_num(ad->sk))
    382. >         return NULL;
    383.       return sk_void_value(ad->sk, idx);
    384.   }

crypto/ex_data.c:384:1: return from a call to CRYPTO_get_ex_data
    382.           return NULL;
    383.       return sk_void_value(ad->sk, idx);
    384. > }

ssl/ssl_lib.c:3733:1: return from a call to SSL_get_ex_data
  3731.   {
  3732.       return (CRYPTO_get_ex_data(&s->ex_data, idx));
  3733. > }
  3734.   
  3735.   int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)

test/handshake_helper.c:316:5: 
314.       HANDSHAKE_EX_DATA *ex_data =
315.           (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
316. >     ex_data->session_ticket_do_not_call = 1;
317.       return 0;
318.   }
