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=ham 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 6D9FDC34022 for ; Wed, 19 Feb 2020 07:54:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4241621D56 for ; Wed, 19 Feb 2020 07:54:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726510AbgBSHyE convert rfc822-to-8bit (ORCPT ); Wed, 19 Feb 2020 02:54:04 -0500 Received: from mail-il1-f200.google.com ([209.85.166.200]:54295 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726582AbgBSHyE (ORCPT ); Wed, 19 Feb 2020 02:54:04 -0500 Received: by mail-il1-f200.google.com with SMTP id t4so19233296ili.21 for ; Tue, 18 Feb 2020 23:54:03 -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=bhiLhZ0hGFmHCjOA0xxswOfkox27Yu7xmMOMfRdjKnY=; b=jhzpV6uDrRm+P0uCY8KEYrwKOKe1f5TYCvMkFUdtjxJNrlW5beBUm0SLe0KNd45IWD s7OX8pnohxCDdeldgTJRaRci04V9RIIzhGX4ECfvGSJ5mPvyQ4Z5vE6N+xIAQKh/cnaF Fde2VeKBMdUYxZDL0PK1ZFv8BpKDIt8mtV3iuY/Svp9dmYEHWbtUwg3FmaBGo35WwbLV eL8QT+0tW5T6RjnyMve6cINDETu47z5UvTxwa+bqMDTZFn5kdIlY33jklNUXOcfgnC6G myjmxWjFXOJRUsWdPKQmPAPQYfQg7vw1AdTfEuhVyjQzGB573h8MvbeMRK4svbzrj/1i /O7w== X-Gm-Message-State: APjAAAWDy+wX8fYDc/2gYwKfy7enUQYXbOOSXXT7hxp+pWtmoS7NVANt NgT4iigD60Uwy2dvM6/IqFZtBdJjhFx+k0/yIlmDxHjGrErn X-Google-Smtp-Source: APXvYqxGYY13aZOMM0BSOmDQMzSYZrf2qmPLxLF8eTHCcZFD8r1N2DfCNIuzDx8cL8jZ8cKMDsJUm0ShbBazBm0Pcb2Lzvn6MzqR MIME-Version: 1.0 X-Received: by 2002:a02:2101:: with SMTP id e1mr19970446jaa.29.1582098843467; Tue, 18 Feb 2020 23:54:03 -0800 (PST) Date: Tue, 18 Feb 2020 23:54:03 -0800 In-Reply-To: <0000000000006d7b1e059c7db653@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000908c50059ee9173a@google.com> Subject: Re: KASAN: use-after-free Read in bitmap_ip_ext_cleanup From: syzbot To: a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, bridge@lists.linux-foundation.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, nikolay@cumulusnetworks.com, pablo@netfilter.org, roopa@cumulusnetworks.com, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@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=17079245e00000 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=b554d01b6c7870b17da2 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145948d6e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16202cc9e00000 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