1 files changed, 14 insertions, 0 deletions
diff --git a/src/http/modules/ngx_http_geo_module.c b/src/http/modules/ngx_http_geo_module.c
index fce87a8cb..530db7fd1 100644
--- a/src/http/modules/ngx_http_geo_module.c
+++ b/src/http/modules/ngx_http_geo_module.c
@@ -322,6 +322,13 @@ ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     }
 
     name = value[1];
+
+    if (name.data[0] != '$') {
+        ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                           "invalid variable name \"%V\"", &name);
+        return NGX_CONF_ERROR;
+    }
+
     name.len--;
     name.data++;
 
@@ -333,6 +340,13 @@ ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         }
 
         name = value[2];
+
+        if (name.data[0] != '$') {
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                               "invalid variable name \"%V\"", &name);
+            return NGX_CONF_ERROR;
+        }
+
         name.len--;
         name.data++;