src/http/ngx_http_core_module.c:1175: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned64 by call to `ngx_open_cached_file`.

src/http/ngx_http_core_module.c:1167:9: Unknown value from: __infer_skip
1165.         }
1166. 
1167.         ngx_memzero(&of, sizeof(ngx_open_file_info_t));
              ^
1168. 
1169.         of.directio = clcf->directio;

src/http/ngx_http_core_module.c:1175:13: Call
1173.         of.events = clcf->open_file_cache_events;
1174. 
1175.         if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
                  ^
1176.             != NGX_OK)
1177.         {

src/core/ngx_open_file_cache.c:126:1: <LHS trace>
124. 
125. 
126. ngx_int_t
     ^
127. ngx_open_cached_file(ngx_open_file_cache_t *cache, ngx_str_t *name,
128.     ngx_open_file_info_t *of, ngx_pool_t *pool)

src/core/ngx_open_file_cache.c:126:1: Parameter `cache->current`
  124. 
  125. 
  126. ngx_int_t
       ^
  127. ngx_open_cached_file(ngx_open_file_cache_t *cache, ngx_str_t *name,
  128.     ngx_open_file_info_t *of, ngx_pool_t *pool)

src/core/ngx_open_file_cache.c:297:9: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ngx_open_cached_file` 
  295.         ngx_rbtree_delete(&cache->rbtree, &file->node);
  296. 
  297.         cache->current--;
               ^
  298. 
  299.         file->close = 1;
