src/http/ngx_http_variables.c:2567: error: Buffer Overrun L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `ngx_http_add_variable`.

src/http/ngx_http_variables.c:2567:13: Call
2565. 
2566.     for (cv = ngx_http_core_variables; cv->name.len; cv++) {
2567.         v = ngx_http_add_variable(cf, &cv->name, cv->flags);
                  ^
2568.         if (v == NULL) {
2569.             return NGX_ERROR;

src/http/ngx_http_variables.c:387:1: Parameter `name->len`
  385. 
  386. 
  387. ngx_http_variable_t *
       ^
  388. ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
  389. {

src/http/ngx_http_variables.c:2567:13: Call
2565. 
2566.     for (cv = ngx_http_core_variables; cv->name.len; cv++) {
2567.         v = ngx_http_add_variable(cf, &cv->name, cv->flags);
                  ^
2568.         if (v == NULL) {
2569.             return NGX_ERROR;

src/http/ngx_http_variables.c:387:1: Parameter `name->len`
  385. 
  386. 
  387. ngx_http_variable_t *
       ^
  388. ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
  389. {

src/http/ngx_http_variables.c:434:5: Assignment
  432.     }
  433. 
  434.     v->name.len = name->len;
           ^
  435.     v->name.data = ngx_pnalloc(cf->pool, name->len);
  436.     if (v->name.data == NULL) {

src/http/ngx_http_variables.c:448:10: Call
  446.     v->index = 0;
  447. 
  448.     rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);
                ^
  449. 
  450.     if (rc == NGX_ERROR) {

src/core/ngx_hash.c:712:1: <Offset trace>
710. 
711. 
712. ngx_int_t
     ^
713. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
714.     ngx_uint_t flags)

src/core/ngx_hash.c:712:1: Parameter `key->len`
    710. 
    711. 
    712. ngx_int_t
         ^
    713. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
    714.     ngx_uint_t flags)

src/core/ngx_hash.c:712:1: <Length trace>
710. 
711. 
712. ngx_int_t
     ^
713. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
714.     ngx_uint_t flags)

src/core/ngx_hash.c:712:1: Parameter `*key->data`
    710. 
    711. 
    712. ngx_int_t
         ^
    713. ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
    714.     ngx_uint_t flags)

src/core/ngx_hash.c:763:17: Array access: Offset: [-1, +oo] Size: [1, +oo] by call to `ngx_http_add_variable` 
    761.             }
    762. 
    763.             if (key->data[i - 2] == '.' && key->data[i - 1] == '*') {
                         ^
    764.                 skip = 0;
    765.                 last -= 2;
