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 4EF20C38A2B for ; Fri, 17 Apr 2020 19:05:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 388B420780 for ; Fri, 17 Apr 2020 19:05:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728444AbgDQTFE (ORCPT ); Fri, 17 Apr 2020 15:05:04 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:48834 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725960AbgDQTFD (ORCPT ); Fri, 17 Apr 2020 15:05:03 -0400 Received: by mail-io1-f72.google.com with SMTP id w10so3025974iod.15 for ; Fri, 17 Apr 2020 12:05:03 -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=5c8LCDRq12f8g3OYrnBxOb2S1vJ1If0MMyvK95Cf5Fk=; b=h0ylXllL1pef1LdUiwwcjlyRsN5iN9LgoB08fyg2tyc0UL8c7fNvApwmrXjhwFGlGD aC0S2U+PjlLHIeBXLJ43zdk7cSZQeLzu9rCxJEiGdOv7TaGqgYC2idpkXiAx+GUxgB5o J7O1akQHc1LN28s7/74TMyTgmF5kXiffahs/Oejpt1mA5DXDlrNQT7fDPDckPDXBdAVl GNX74oYW6o0dAVMCXON3KY+dYZpcQBhXEOTn/vNQX201jADo9PLWbqA2Dfc5QHAwdowU Ptk0I0LwMVKHPhSpgh4iF1FVzqJNZnDPUswAbbSpOqAqfLCe7338u1gcH3LONj7Jdmwf vi9w== X-Gm-Message-State: AGi0Puajx0ALS4DTuPK69bINo9x2YgP7QW/7b+pch6z8dBYwks/ZvEEC 9ETA7l1UJNvxkMLdkRmzrnHuDIzO5plffGk33qYe9tBCQ/ts X-Google-Smtp-Source: APiQypKsq7TxaiPrXeHTLAURaor6Vs0GiUzQw/HOVdjNTAiVTr5h6r9VDsXe7qVE1r1NZsa4mN8p+sOD4iQMPGQkiM1vyKec2V7l MIME-Version: 1.0 X-Received: by 2002:a92:b74e:: with SMTP id c14mr4736743ilm.52.1587150302788; Fri, 17 Apr 2020 12:05:02 -0700 (PDT) Date: Fri, 17 Apr 2020 12:05:02 -0700 In-Reply-To: <00000000000088487805a116880c@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000000c55c05a3813a66@google.com> Subject: Re: KASAN: use-after-free Write in tcindex_change From: syzbot To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.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 suspects this bug was fixed by commit: commit 0d1c3530e1bd38382edef72591b78e877e0edcd3 Author: Cong Wang Date: Thu Mar 12 05:42:28 2020 +0000 net_sched: keep alloc_hash updated after hash allocation bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15a956d7e00000 start commit: ac309e77 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=6dfa02302d6db985 dashboard link: https://syzkaller.appspot.com/bug?extid=ba4bcf1563f90386910f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1771b973e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1248a61de00000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: net_sched: keep alloc_hash updated after hash allocation For information about bisection process see: https://goo.gl/tpsmEJ#bisection