From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8C65C433C1 for ; Tue, 23 Mar 2021 21:37:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 97A37619CE for ; Tue, 23 Mar 2021 21:37:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233612AbhCWVhE (ORCPT ); Tue, 23 Mar 2021 17:37:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233464AbhCWVgf (ORCPT ); Tue, 23 Mar 2021 17:36:35 -0400 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [IPv6:2a0a:51c0:0:12e:520::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40BD1C061574; Tue, 23 Mar 2021 14:36:34 -0700 (PDT) Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1lOohT-0007hU-Nr; Tue, 23 Mar 2021 22:36:31 +0100 Date: Tue, 23 Mar 2021 22:36:31 +0100 From: Florian Westphal To: Richard Guy Briggs Cc: Linux-Audit Mailing List , LKML , netfilter-devel@vger.kernel.org, Paul Moore , Eric Paris , Steve Grubb , Florian Westphal , Phil Sutter , twoerner@redhat.com, tgraf@infradead.org, dan.carpenter@oracle.com, Jones Desougi Subject: Re: [PATCH v3] audit: log nftables configuration change events once per table Message-ID: <20210323213631.GA27244@breakpoint.cc> References: <3d15fa1f0c54335f9258d90ea0d11050e780ba70.1616529248.git.rgb@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3d15fa1f0c54335f9258d90ea0d11050e780ba70.1616529248.git.rgb@redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Richard Guy Briggs wrote: > nft_commit_notify(net, NETLINK_CB(skb).portid); > nf_tables_gen_notify(net, skb, NFT_MSG_NEWGEN); > nf_tables_commit_release(net); > > + nf_tables_commit_audit_log(&adl, net->nft.base_seq); This meeds to be before nf_tables_commit_release() call, afaics this function dereferences data structures that might be free'd already here.