From patchwork Sat Mar 23 16:01:38 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pablo Neira Ayuso X-Patchwork-Id: 230338 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 1AB7F2C00AC for ; Sun, 24 Mar 2013 03:01:55 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751372Ab3CWQBx (ORCPT ); Sat, 23 Mar 2013 12:01:53 -0400 Received: from mail.us.es ([193.147.175.20]:57252 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751304Ab3CWQBx (ORCPT ); Sat, 23 Mar 2013 12:01:53 -0400 Received: (qmail 23658 invoked from network); 23 Mar 2013 17:01:49 +0100 Received: from unknown (HELO us.es) (192.168.2.11) by us.es with SMTP; 23 Mar 2013 17:01:49 +0100 Received: (qmail 14887 invoked by uid 507); 23 Mar 2013 16:01:49 -0000 X-Qmail-Scanner-Diagnostics: from 127.0.0.1 by antivirus1 (envelope-from , uid 501) with qmail-scanner-2.10 (clamdscan: 0.97.6/16888. spamassassin: 3.3.2. Clear:RC:1(127.0.0.1):SA:0(-97.8/7.5):. Processed in 2.238628 secs); 23 Mar 2013 16:01:49 -0000 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on antivirus1 X-Spam-Level: X-Spam-Status: No, score=-97.8 required=7.5 tests=BAYES_50,RCVD_IN_PBL, RCVD_IN_SORBS_DUL,RDNS_DYNAMIC,USER_IN_WHITELIST autolearn=disabled version=3.3.2 X-Envelope-From: pablo@netfilter.org Received: from unknown (HELO antivirus1) (127.0.0.1) by us.es with SMTP; 23 Mar 2013 16:01:47 -0000 Received: from 192.168.1.13 (192.168.1.13) by antivirus1 (F-Secure/fsigk_smtp/407/antivirus1); Sat, 23 Mar 2013 17:01:47 +0100 (CET) X-Virus-Status: clean(F-Secure/fsigk_smtp/407/antivirus1) Received: (qmail 17797 invoked from network); 23 Mar 2013 17:01:47 +0100 Received: from 172.231.78.188.dynamic.jazztel.es (HELO localhost.localdomain) (pneira@us.es@188.78.231.172) by us.es with SMTP; 23 Mar 2013 17:01:47 +0100 From: pablo@netfilter.org To: netfilter-devel@vger.kernel.org Cc: michael.zintakis@googlemail.com Subject: [PATCH] netfilter: nfnetlink_acct: return -EINVAL if object name is empty Date: Sat, 23 Mar 2013 17:01:38 +0100 Message-Id: <1364054498-7234-1-git-send-email-pablo@netfilter.org> X-Mailer: git-send-email 1.7.10.4 Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Pablo Neira Ayuso If user-space tries to create accounting object with an empty name, then return -EINVAL. Reported-by: Michael Zintakis Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nfnetlink_acct.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c index 589d686..dc3fd5d 100644 --- a/net/netfilter/nfnetlink_acct.c +++ b/net/netfilter/nfnetlink_acct.c @@ -49,6 +49,8 @@ nfnl_acct_new(struct sock *nfnl, struct sk_buff *skb, return -EINVAL; acct_name = nla_data(tb[NFACCT_NAME]); + if (strlen(acct_name) == 0) + return -EINVAL; list_for_each_entry(nfacct, &nfnl_acct_list, head) { if (strncmp(nfacct->name, acct_name, NFACCT_NAME_MAX) != 0)