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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 EA967C34050 for ; Wed, 19 Feb 2020 15:46:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BA4FF2464E for ; Wed, 19 Feb 2020 15:46:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726783AbgBSPqF convert rfc822-to-8bit (ORCPT ); Wed, 19 Feb 2020 10:46:05 -0500 Received: from mail-il1-f197.google.com ([209.85.166.197]:38679 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726645AbgBSPqE (ORCPT ); Wed, 19 Feb 2020 10:46:04 -0500 Received: by mail-il1-f197.google.com with SMTP id i67so538642ilf.5 for ; Wed, 19 Feb 2020 07:46:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to:content-transfer-encoding; bh=meEL6Fy6aleZ9jtvpgGrvnGSbq9MuEYemHMybXseYg4=; b=f3SUE58/YgBfF0JLpdg9f1ANe71O21x02oULTlSzD5TwuiLDfaMMNM4ZElqA2XF+Md WSSHB6Rvc39JEoZ/IjzMmR7z7+MZLZz8NMlX90i+XjhUTgnKZhVBgqJaqSEuEgw2dtZI tykv4U4rnYWW4FD78g0o8k21ZTN20b/EQS0hpaG41ri8T9zVHuQb7ouVxtFOetdr3T2C nZvlouXsaYw6I+M85eLVv8L94rUcdOhuwHje9eMCeTENC2QlSONAmfB6ssskhWwbfcgC LpU9rU7eFL1kfolj20zPVcmM30Z9qUDYSqf56cdz07sIDKYl7xWVFEFv59JWAZkAFuyi MGMQ== X-Gm-Message-State: APjAAAXl3kOf5Br7zXZg4GzQkZ9bLKIUE3lEHnNaSn25fVJ1yknqrjDW filLa+R2GcoK5+OzNuAyyYQ/FtU8ALDF6RwAv1mkcvPoyc5D X-Google-Smtp-Source: APXvYqwJfaY34Duul7QI4nsW4eP5gWo56eh9X0PBjI8pEz/ZDnQ4R7/IwdlEugDK5rSMkM2M9L+WROKda4/pXhpDOVDjiChOjTov MIME-Version: 1.0 X-Received: by 2002:a92:91d8:: with SMTP id e85mr25001159ill.146.1582127163011; Wed, 19 Feb 2020 07:46:03 -0800 (PST) Date: Wed, 19 Feb 2020 07:46:02 -0800 In-Reply-To: <000000000000c7999e059c86eebe@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008a7b14059eefafff@google.com> Subject: Re: KASAN: use-after-free Read in bitmap_ipmac_ext_cleanup From: syzbot To: a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, coreteam@netfilter.org, davem@davemloft.net, florent.fourcot@wifirst.fr, fw@strlen.de, jeremy@azazel.net, johannes.berg@intel.com, kadlec@blackhole.kfki.hu, kadlec@netfilter.org, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, po-hsu.lin@canonical.com, skhan@linuxfoundation.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this bug was fixed by commit: commit 32c72165dbd0e246e69d16a3ad348a4851afd415 Author: Kadlecsik József Date: Sun Jan 19 21:06:49 2020 +0000 netfilter: ipset: use bitmap infrastructure completely bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13435a7ee00000 start commit: 8f8972a3 Merge tag 'mtd/fixes-for-5.5-rc7' of git://git.ke.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=d9290aeb7e6cf1c4 dashboard link: https://syzkaller.appspot.com/bug?extid=33fc3ad6fa11675e1a7e userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15982cc9e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11be38d6e00000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: netfilter: ipset: use bitmap infrastructure completely For information about bisection process see: https://goo.gl/tpsmEJ#bisection