From b44a2acbe482901b3bfc4d2e8e2856ebee8a0328 Mon Sep 17 00:00:00 2001
From: Hakase <hakase@hakase.app>
Date: Sat, 9 May 2020 15:33:53 +0900
Subject: [PATCH] Latest update - 7648

---
 src/http/ngx_http_variables.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index e067cf0..c2113c8 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -1075,7 +1075,7 @@ ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v,
     len = name->len - (sizeof("arg_") - 1);
     arg = name->data + sizeof("arg_") - 1;
 
-    if (ngx_http_arg(r, arg, len, &value) != NGX_OK) {
+    if (len == 0 || ngx_http_arg(r, arg, len, &value) != NGX_OK) {
         v->not_found = 1;
         return NGX_OK;
     }