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 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 6F064C32771 for ; Mon, 20 Jan 2020 23:16:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D06C208E4 for ; Mon, 20 Jan 2020 23:16:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727047AbgATXQB (ORCPT ); Mon, 20 Jan 2020 18:16:01 -0500 Received: from mail-io1-f70.google.com ([209.85.166.70]:50908 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726874AbgATXQB (ORCPT ); Mon, 20 Jan 2020 18:16:01 -0500 Received: by mail-io1-f70.google.com with SMTP id e13so570116iob.17 for ; Mon, 20 Jan 2020 15:16:01 -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; bh=y3GTXWLuk9NLOUo9vngxj+QH9Vmo0/vEpcLHw8rmxOE=; b=qYzNZbUwYl7DH03m2A/O42XqQcVAhMMKQquDFphsbqke63j7aZmysJ1UQ2yiIg4Opx 6baNuekWG/z5rZv4d4y0BZxxgi+R6DCkRqO7TAffcKtFP+XuwE33zDEd9jtjyH7MTb8H Elv9f5nOyPxUOUhUMKcuEKTZuje+LYuDK7XCWYCt5htWoHepna1v2t1Z42x3lkDXmXwj RQ+oQDk8fl1txl4/cr62lenTGa3CZUaSQ5WUV7g8vQJgxREL8Y0Wcyf5xE0rjujYXw2k qtVOLJU9tvTq2IKgd2oOj9QQU7R2uZPzA9xSzGCrzRLrjdBcuSgsxZdNGPea38Ks+EYL czmw== X-Gm-Message-State: APjAAAW58mvah4lo+4w/b0n7YEz/QP6XESVJ73YYC1WUjEhtyy0svNOl NfYwcg97ZiCzyW1nfFD5rIdi8KGZp1QhVEiEI4xjMYB1mdzq X-Google-Smtp-Source: APXvYqwTQzxbm8PYHQsYDQTufEheVPhobojoxo91G/kDDsKtigITdXJIOhyQnk0UJj6rRXnzx2pnx/MUqigsEvuGYyTl0a8JeDIb MIME-Version: 1.0 X-Received: by 2002:a05:6e02:f0f:: with SMTP id x15mr1213167ilj.298.1579562160891; Mon, 20 Jan 2020 15:16:00 -0800 (PST) Date: Mon, 20 Jan 2020 15:16:00 -0800 In-Reply-To: <000000000000c7999e059c86eebe@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000802f87059c9a7984@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@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" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this bug to: commit ff95bf28c23490584b9d75913a520bb7bb1f2ecb Author: Po-Hsu Lin Date: Mon Jul 1 04:40:31 2019 +0000 selftests/net: skip psock_tpacket test if KALLSYMS was not enabled bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e2e966e00000 start commit: 8f8972a3 Merge tag 'mtd/fixes-for-5.5-rc7' of git://git.ke.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1412e966e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1012e966e00000 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 Reported-by: syzbot+33fc3ad6fa11675e1a7e@syzkaller.appspotmail.com Fixes: ff95bf28c234 ("selftests/net: skip psock_tpacket test if KALLSYMS was not enabled") For information about bisection process see: https://goo.gl/tpsmEJ#bisection