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=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 AD6E0C76191 for ; Thu, 18 Jul 2019 04:05:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 861B82085A for ; Thu, 18 Jul 2019 04:05:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726597AbfGREFC (ORCPT ); Thu, 18 Jul 2019 00:05:02 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:47026 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725976AbfGREFB (ORCPT ); Thu, 18 Jul 2019 00:05:01 -0400 Received: by mail-io1-f69.google.com with SMTP id s83so29474795iod.13 for ; Wed, 17 Jul 2019 21:05:01 -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=rO6mN9k+vHdaOKXwiYK6lb8yy3omdcgM9VwY0e87b1I=; b=SdkppBhEcyCsEXFnnA52TwtkFFyX0qsuUK93sSM5GX0ez52EGJlmCYnYcUaoAuX5cT 6Dqxbyezr6Ykt5MkKC6xQgVs/17yt6oaZiJW+/Ttauy6Ab/GxecYzdhJokOJ9QhcyWUT SKVbYTBNVrC8bx2JRretW3ha8qowwOkRg+4y+ScaNnTsPOe6WzC1OQdtoEV46pSmC5Q9 N4PfKo3GaQBgUmUgQ3+Tacf97sylALIR1R45VFwlQW9W1YqtSEiB+f3fZeg76KKdP63N 24poedTSov2zj51zhWV+HTz7ekYZsfP26SeX9qS19t6fSwMPA1qRhFM2/enpc3kPFEN5 CPnA== X-Gm-Message-State: APjAAAXZuOTOj0KPzcD8iDzxZElF8EAUoM3B1zy++cm2P5sZZzMu6fKN yBB+7bDPEQtUVwNW8eMCaiJX4lnSOwZYBykw7ShEKFj1uAsA X-Google-Smtp-Source: APXvYqyoTku210g3yO2ZxIoWRjLSWWYoJ7AIdVEja+ew4AgEiBHjNVm32t+GYNCHZjF/KU+MOvu5h3cIJpyzx3miUXglcYu1pfp9 MIME-Version: 1.0 X-Received: by 2002:a02:7a5c:: with SMTP id z28mr45781722jad.40.1563422701068; Wed, 17 Jul 2019 21:05:01 -0700 (PDT) Date: Wed, 17 Jul 2019 21:05:01 -0700 In-Reply-To: <0000000000007e8b70058acbd60f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bb2b51058decb6a2@google.com> Subject: Re: KASAN: use-after-free Read in nr_release From: syzbot To: davem@davemloft.net, hdanton@sina.com, linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, ralf@linux-mips.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit c8c8218ec5af5d2598381883acbefbf604e56b5e Author: Cong Wang Date: Thu Jun 27 21:30:58 2019 +0000 netrom: fix a memory leak in nr_rx_frame() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10a3bcd0600000 start commit: 192f0f8e Merge tag 'powerpc-5.3-1' of git://git.kernel.org.. git tree: net-next final crash: https://syzkaller.appspot.com/x/report.txt?x=12a3bcd0600000 console output: https://syzkaller.appspot.com/x/log.txt?x=14a3bcd0600000 kernel config: https://syzkaller.appspot.com/x/.config?x=87305c3ca9c25c70 dashboard link: https://syzkaller.appspot.com/bug?extid=6eaef7158b19e3fec3a0 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15882cd0600000 Reported-by: syzbot+6eaef7158b19e3fec3a0@syzkaller.appspotmail.com Fixes: c8c8218ec5af ("netrom: fix a memory leak in nr_rx_frame()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection