test/handshake_helper.c:306: error: NULL_DEREFERENCE
  pointer `ex_data` last assigned on line 304 could be null and is dereferenced at line 306, column 5.
Showing all 10 steps of the trace


test/handshake_helper.c:299:1: start of procedure do_not_call_session_ticket_cb()
297.   }
298.   
299. > static int do_not_call_session_ticket_cb(SSL *s, unsigned char *key_name,
300.                                            unsigned char *iv,
301.                                            EVP_CIPHER_CTX *ctx,

test/handshake_helper.c:304:5: 
302.                                            HMAC_CTX *hctx, int enc)
303.   {
304. >     HANDSHAKE_EX_DATA *ex_data =
305.           (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
306.       ex_data->session_ticket_do_not_call = 1;

ssl/ssl_lib.c:3572:1: start of procedure SSL_get_ex_data()
  3570.   }
  3571.   
  3572. > void *SSL_get_ex_data(const SSL *s, int idx)
  3573.   {
  3574.       return (CRYPTO_get_ex_data(&s->ex_data, idx));

ssl/ssl_lib.c:3574:5: 
  3572.   void *SSL_get_ex_data(const SSL *s, int idx)
  3573.   {
  3574. >     return (CRYPTO_get_ex_data(&s->ex_data, idx));
  3575.   }
  3576.   

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:3575:1: return from a call to SSL_get_ex_data
  3573.   {
  3574.       return (CRYPTO_get_ex_data(&s->ex_data, idx));
  3575. > }
  3576.   
  3577.   int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)

test/handshake_helper.c:306:5: 
304.       HANDSHAKE_EX_DATA *ex_data =
305.           (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
306. >     ex_data->session_ticket_do_not_call = 1;
307.       return 0;
308.   }

static int do_not_call_session_ticket_cb(SSL *s, unsigned char *key_name,
                                         unsigned char *iv,
                                         EVP_CIPHER_CTX *ctx,
                                         HMAC_CTX *hctx, int enc)
{
    HANDSHAKE_EX_DATA *ex_data =
        (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
    ex_data->session_ticket_do_not_call = 1;
    return 0;
}
['static int do_not_call_session_ticket_cb(SSL *s, unsigned char *key_name,\n                                         unsigned char *iv,\n                                         EVP_CIPHER_CTX *ctx,\n                                         HMAC_CTX *hctx, int enc)\n{\n    HANDSHAKE_EX_DATA *ex_data =\n        (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));\n    ex_data->session_ticket_do_not_call = 1;\n    return 0;\n}', 'void *SSL_get_ex_data(const SSL *s, int idx)\n{\n    return (CRYPTO_get_ex_data(&s->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}']