crypto/rand/rand_lib.c:156: error: NULL_DEREFERENCE
  pointer `meth` last assigned on line 154 could be null and is dereferenced at line 156, column 9.
Showing all 14 steps of the trace


crypto/rand/rand_lib.c:152:1: start of procedure RAND_pseudo_bytes()
150.   
151.   #if OPENSSL_API_COMPAT < 0x10100000L
152. > int RAND_pseudo_bytes(unsigned char *buf, int num)
153.   {
154.       const RAND_METHOD *meth = RAND_get_rand_method();

crypto/rand/rand_lib.c:154:5: 
152.   int RAND_pseudo_bytes(unsigned char *buf, int num)
153.   {
154. >     const RAND_METHOD *meth = RAND_get_rand_method();
155.   
156.       if (meth->pseudorand != NULL)

crypto/rand/rand_lib.c:69:1: start of procedure RAND_get_rand_method()
  67.   }
  68.   
  69. > const RAND_METHOD *RAND_get_rand_method(void)
  70.   {
  71.       const RAND_METHOD *tmp_meth = NULL;

crypto/rand/rand_lib.c:71:5: 
  69.   const RAND_METHOD *RAND_get_rand_method(void)
  70.   {
  71. >     const RAND_METHOD *tmp_meth = NULL;
  72.   
  73.       if (!RUN_ONCE(&rand_init, do_rand_init))

crypto/rand/rand_lib.c:73:10: 
  71.       const RAND_METHOD *tmp_meth = NULL;
  72.   
  73. >     if (!RUN_ONCE(&rand_init, do_rand_init))
  74.           return NULL;
  75.   

crypto/threads_pthread.c:105:1: start of procedure CRYPTO_THREAD_run_once()
    103.   }
    104.   
    105. > int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
    106.   {
    107.       if (pthread_once(once, init) != 0)

crypto/threads_pthread.c:107:9: Taking true branch
    105.   int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
    106.   {
    107.       if (pthread_once(once, init) != 0)
                   ^
    108.           return 0;
    109.   

crypto/threads_pthread.c:108:9: 
    106.   {
    107.       if (pthread_once(once, init) != 0)
    108. >         return 0;
    109.   
    110.       return 1;

crypto/threads_pthread.c:111:1: return from a call to CRYPTO_THREAD_run_once
    109.   
    110.       return 1;
    111. > }
    112.   
    113.   int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))

crypto/rand/rand_lib.c:73:10: Condition is false
  71.       const RAND_METHOD *tmp_meth = NULL;
  72.   
  73.       if (!RUN_ONCE(&rand_init, do_rand_init))
                 ^
  74.           return NULL;
  75.   

crypto/rand/rand_lib.c:73:10: Taking true branch
  71.       const RAND_METHOD *tmp_meth = NULL;
  72.   
  73.       if (!RUN_ONCE(&rand_init, do_rand_init))
                 ^
  74.           return NULL;
  75.   

crypto/rand/rand_lib.c:74:9: 
  72.   
  73.       if (!RUN_ONCE(&rand_init, do_rand_init))
  74. >         return NULL;
  75.   
  76.       CRYPTO_THREAD_write_lock(rand_meth_lock);

crypto/rand/rand_lib.c:97:1: return from a call to RAND_get_rand_method
  95.       CRYPTO_THREAD_unlock(rand_meth_lock);
  96.       return tmp_meth;
  97. > }
  98.   
  99.   #ifndef OPENSSL_NO_ENGINE

crypto/rand/rand_lib.c:156:9: 
154.       const RAND_METHOD *meth = RAND_get_rand_method();
155.   
156. >     if (meth->pseudorand != NULL)
157.           return meth->pseudorand(buf, num);
158.       return -1;
