changeset 5769:e0aa54a4357e

Reset of r->uri.len on URI parsing errors. This ensures that debug logging and the $uri variable (if used in 400 Bad Request processing) will not try to access uninitialized memory. Found by Sergey Bobrov.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 18 Jul 2014 20:02:11 +0400
parents 70a0408cca7b
children 9de5820bb3e0
files src/http/ngx_http_request.c
diffstat 1 files changed, 2 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -1071,6 +1071,8 @@ ngx_http_process_request_uri(ngx_http_re
         cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
 
         if (ngx_http_parse_complex_uri(r, cscf->merge_slashes) != NGX_OK) {
+            r->uri.len = 0;
+
             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
                           "client sent invalid request");
             ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);