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=-4.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 3861CC4727E for ; Wed, 30 Sep 2020 19:03:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 06DE42084C for ; Wed, 30 Sep 2020 19:03:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730352AbgI3TDI (ORCPT ); Wed, 30 Sep 2020 15:03:08 -0400 Received: from mail-io1-f77.google.com ([209.85.166.77]:33748 "EHLO mail-io1-f77.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730784AbgI3TDH (ORCPT ); Wed, 30 Sep 2020 15:03:07 -0400 Received: by mail-io1-f77.google.com with SMTP id m10so200713ioq.0 for ; Wed, 30 Sep 2020 12:03:05 -0700 (PDT) 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=4BsGJwLCSmtEpgZ5Z5TL9+bN9hykq9gqd70JSnuK+q4=; b=n4LfMLvnyC4X10gOizrwqfevlutOK6uuy1hqlkbz0+C/U4x5l+MTrqUEnMQRWn8ngd 8cbNEH2a2oYUzi4JcgcYYPuo4pz67dlAstxvRW1X7/gNXOKPHmA/TnjUObHAn8Bw/nAk R8vzg5+CuSgLSipzupYGsKMECpA1YpKCyVnkCAzU2rtnb1huBZLHSh9rf/6Q3sjDwxjC Zk0e6f+QY3fzo+E2tRN5W4FIKYMTXH705RN1Jl2TPBkSUboxBa4rzSBCPhDxFDGRkte1 r+g0FSxOjSsEGfHF4YaHgu0jT83qqVjsaEweb2MTsohkgA3GOlOtItqeOhHKVIZjA9jD JDgw== X-Gm-Message-State: AOAM5319Ek9bv8/V8QoHCHRGs2p8KmOgIWq9UCyV5BM5cgT9/d5kKcjE iIc7c9iDTKnLYrspPFsqXrtVJl1DHTBPUgxIaIDigGsZF7Cw X-Google-Smtp-Source: ABdhPJxT/TNj9sdzI1Jlqa8xdgNr1o/U4WTpEAMAVh5Rh6fkvvL6SudGSXDHlQCQ7DGsgEXq2bYAjTIEJDAHSbWWWWn5XGCRZh0F MIME-Version: 1.0 X-Received: by 2002:a05:6602:121c:: with SMTP id y28mr2845266iot.156.1601492584835; Wed, 30 Sep 2020 12:03:04 -0700 (PDT) Date: Wed, 30 Sep 2020 12:03:04 -0700 In-Reply-To: <000000000000e82e1a05afd0605d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a1321d05b08c8c9b@google.com> Subject: Re: KASAN: use-after-free Read in afs_deactivate_cell (2) From: syzbot To: dhowells@redhat.com, linux-afs@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot has bisected this issue to: commit 13fcc6837049f1bd76d57e9abc217a91fdbad764 Author: David Howells Date: Thu Nov 1 23:07:27 2018 +0000 afs: Add fs_context support bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13ea9ea7900000 start commit: 49e7e3e9 Add linux-next specific files for 20200929 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=101a9ea7900000 console output: https://syzkaller.appspot.com/x/log.txt?x=17ea9ea7900000 kernel config: https://syzkaller.appspot.com/x/.config?x=b823d07e241e7aee dashboard link: https://syzkaller.appspot.com/bug?extid=a5e4946b04d6ca8fa5f3 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=173c446d900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14ba5be3900000 Reported-by: syzbot+a5e4946b04d6ca8fa5f3@syzkaller.appspotmail.com Fixes: 13fcc6837049 ("afs: Add fs_context support") For information about bisection process see: https://goo.gl/tpsmEJ#bisection