nginx 0.7.59 *) Feature: the "proxy_cache_methods" and "fastcgi_cache_methods" directives. *) Bugfix: socket leak; the bug had appeared in 0.7.25. Thanks to Maxim Dounin. *) Bugfix: a segmentation fault occurred in worker process, if a request had no body and the $request_body variable was used; the bug had appeared in 0.7.58. *) Bugfix: the SSL modules might not built on Solaris and Linux; the bug had appeared in 0.7.58. *) Bugfix: ngx_http_xslt_filter_module responses were not handled by SSI, charset, and gzip filters. *) Bugfix: a "charset" directive did not set a charset to ngx_http_gzip_static_module responses.

--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -1492,7 +1492,10 @@ ngx_http_variable_request_body(ngx_http_
     ngx_buf_t    *buf, *next;
     ngx_chain_t  *cl;
 
-    if (r->request_body == NULL || r->request_body->temp_file) {
+    if (r->request_body == NULL
+        || r->request_body->bufs == NULL
+        || r->request_body->temp_file)
+    {
         v->not_found = 1;
 
         return NGX_OK;