src/http/modules/ngx_http_ssi_filter_module.c:579: error: Buffer Overrun L3
  Offset added: [1, +oo] Size: [0, +oo].

src/http/modules/ngx_http_ssi_filter_module.c:521:25: <Offset trace>
519.                         ctx->last_out = &cl->next;
520. 
521.                         ctx->saved = 0;
                             ^
522.                     }
523. 

src/http/modules/ngx_http_ssi_filter_module.c:521:25: Assignment
519.                         ctx->last_out = &cl->next;
520. 
521.                         ctx->saved = 0;
                             ^
522.                     }
523. 

src/http/modules/ngx_http_ssi_filter_module.c:475:18: Call
473.                            "saved: %uz state: %ui", ctx->saved, ctx->state);
474. 
475.             rc = ngx_http_ssi_parse(r, ctx);
                      ^
476. 
477.             ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,

src/http/modules/ngx_http_ssi_filter_module.c:990:1: Parameter `ctx->saved`
  988. 
  989. 
  990. static ngx_int_t
       ^
  991. ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
  992. {

src/http/modules/ngx_http_ssi_filter_module.c:515:25: <Length trace>
513. 
514.                         b->memory = 1;
515.                         b->pos = ngx_http_ssi_string;
                             ^
516.                         b->last = ngx_http_ssi_string + ctx->saved;
517. 

src/http/modules/ngx_http_ssi_filter_module.c:515:25: Assignment
513. 
514.                         b->memory = 1;
515.                         b->pos = ngx_http_ssi_string;
                             ^
516.                         b->last = ngx_http_ssi_string + ctx->saved;
517. 

src/http/modules/ngx_http_ssi_filter_module.c:579:39: Array access: Offset added: [1, +oo] Size: [0, +oo]
577. 
578.                         if (ctx->saved) {
579.                             b->last = ngx_cpymem(b->pos, ngx_http_ssi_string,
                                           ^
580.                                                  ctx->saved);
581.                         }
