# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1370447063 -14400
# Node ID b6562f98bfd80e5a67e5b3a7cbeb42413046c8e6
# Parent  711fa02afae8b7923cfad3730de0004b5ff61102
Mail: fixed possible uninitialized memory access.

Found by Valgrind.

diff --git a/src/mail/ngx_mail_parse.c b/src/mail/ngx_mail_parse.c
--- a/src/mail/ngx_mail_parse.c
+++ b/src/mail/ngx_mail_parse.c
@@ -842,6 +842,10 @@ ngx_mail_auth_parse(ngx_mail_session_t *
     }
 #endif
 
+    if (s->args.nelts == 0) {
+        return NGX_MAIL_PARSE_INVALID_COMMAND;
+    }
+
     arg = s->args.elts;
 
     if (arg[0].len == 5) {