src/http/ngx_http_core_module.c:3649: error: Buffer Overrun L3
  Offset: [1, +oo] Size: [0, +oo] by call to `ngx_http_script_compile`.

src/http/ngx_http_core_module.c:3562:1: Parameter `conf->root.data`
3560. 
3561. 
3562. static char *
      ^
3563. ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3564. {

src/http/ngx_http_core_module.c:3649:13: Call
3647.         sc.complete_values = 1;
3648. 
3649.         if (ngx_http_script_compile(&sc) != NGX_OK) {
                  ^
3650.             return NGX_CONF_ERROR;
3651.         }

src/http/ngx_http_script.c:229:1: Parameter `*sc->source->data`
  227. 
  228. 
  229. ngx_int_t
       ^
  230. ngx_http_script_compile(ngx_http_script_compile_t *sc)
  231. {

src/http/ngx_http_script.c:284:17: Assignment
  282.                 }
  283. 
  284.                 name.data = &sc->source->data[i];
                       ^
  285. 
  286.             } else {

src/http/ngx_http_script.c:324:17: Call
  322.             sc->variables++;
  323. 
  324.             if (ngx_http_script_add_var_code(sc, &name) != NGX_OK) {
                       ^
  325.                 return NGX_ERROR;
  326.             }

src/http/ngx_http_script.c:657:1: Parameter `*name->data`
    655. 
    656. 
    657. static ngx_int_t
         ^
    658. ngx_http_script_add_var_code(ngx_http_script_compile_t *sc, ngx_str_t *name)
    659. {

src/http/ngx_http_script.c:663:13: Call
    661.     ngx_http_script_var_code_t  *code;
    662. 
    663.     index = ngx_http_get_variable_index(sc->cf, name);
                     ^
    664. 
    665.     if (index == NGX_ERROR) {

src/http/ngx_http_variables.c:322:1: Parameter `*name->data`
      320. 
      321. 
      322. ngx_int_t
           ^
      323. ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
      324. {

src/http/ngx_http_variables.c:364:5: Call
      362.     }
      363. 
      364.     ngx_strlow(v->name.data, name->data, name->len);
               ^
      365. 
      366.     v->set_handler = NULL;

src/core/ngx_string.c:15:1: <Length trace>
13. 
14. 
15. void
    ^
16. ngx_strlow(u_char *dst, u_char *src, size_t n)
17. {

src/core/ngx_string.c:15:1: Parameter `*src`
        13. 
        14. 
        15. void
            ^
        16. ngx_strlow(u_char *dst, u_char *src, size_t n)
        17. {

src/core/ngx_string.c:19:16: Array access: Offset: [1, +oo] Size: [0, +oo] by call to `ngx_http_script_compile` 
        17. {
        18.     while (n--) {
        19.         *dst = ngx_tolower(*src);
                           ^
        20.         dst++;
        21.         src++;
