src/http/modules/ngx_http_split_clients_module.c:151: error: Buffer Overrun L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `ngx_http_add_variable`.

src/http/modules/ngx_http_split_clients_module.c:148:5: Assignment
146.     }
147. 
148.     name.len--;
         ^
149.     name.data++;
150. 

src/http/modules/ngx_http_split_clients_module.c:151:11: Call
149.     name.data++;
150. 
151.     var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE);
               ^
152.     if (var == NULL) {
153.         return NGX_CONF_ERROR;

src/http/ngx_http_variables.c:290:1: Parameter `name->len`
  288. 
  289. 
  290. ngx_http_variable_t *
       ^
  291. ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
  292. {

src/http/ngx_http_variables.c:325:5: Assignment
  323.     }
  324. 
  325.     v->name.len = name->len;
           ^
  326.     v->name.data = ngx_pnalloc(cf->pool, name->len);
  327.     if (v->name.data == NULL) {

src/http/ngx_http_variables.c:339:10: Call
  337.     v->index = 0;
  338. 
  339.     rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);
                ^
  340. 
  341.     if (rc == NGX_ERROR) {

src/core/ngx_hash.c:706:1: <Offset trace>
704. 
705. 
706. ngx_int_t
     ^
707. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
708.     ngx_uint_t flags)

src/core/ngx_hash.c:706:1: Parameter `key->len`
    704. 
    705. 
    706. ngx_int_t
         ^
    707. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
    708.     ngx_uint_t flags)

src/core/ngx_hash.c:706:1: <Length trace>
704. 
705. 
706. ngx_int_t
     ^
707. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
708.     ngx_uint_t flags)

src/core/ngx_hash.c:706:1: Parameter `*key->data`
    704. 
    705. 
    706. ngx_int_t
         ^
    707. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
    708.     ngx_uint_t flags)

src/core/ngx_hash.c:753:17: Array access: Offset: [-1, +oo] Size: [1, +oo] by call to `ngx_http_add_variable` 
    751.             }
    752. 
    753.             if (key->data[i - 2] == '.' && key->data[i - 1] == '*') {
                         ^
    754.                 skip = 0;
    755.                 last -= 2;
