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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 3389CC2BB1D for ; Tue, 17 Mar 2020 21:00:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0052820752 for ; Tue, 17 Mar 2020 21:00:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726738AbgCQVAF (ORCPT ); Tue, 17 Mar 2020 17:00:05 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:56400 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726388AbgCQVAF (ORCPT ); Tue, 17 Mar 2020 17:00:05 -0400 Received: by mail-io1-f69.google.com with SMTP id d13so15053208ioo.23 for ; Tue, 17 Mar 2020 14:00:04 -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=jOHQtkE+j+BwIkremLXMAym3S1dSOKIG4OvqLs6ZU6s=; b=ne/hyUjssdB/RdUk7O2GbvQzYT4szaJD04Tjn/J7Mhlgw4DFKEVwi2ywqxrNOJtnwb XP58ulmeb6VSVwMLiIcGedyphx3LrsCTDNrJ2K8YRg59RZmG3KuRKtbX/nJBmEHjPco2 urPsOl8uNnzu2SeeqU6dp2Jya6PrjPOSa+FDhr4/COyTP3HWnnfBWYmqpdJmxvtr59PI vcR5P3FD5w/tFncuw1jzUXrW01jD1l8wIgbqN0emqTtmomlPNDUA34u0ZFisF5nz1iOp /hcbnR4B/abbWDJ28Muj/XWllYlu/ZqIYhWd2tMD37aUgXzjJwXhWky/tYNyK69wOr8s zgdw== X-Gm-Message-State: ANhLgQ2gL2RtTv3QRkwkV0BIMJcEB+ZaVqLD0Ki1VMsa6X/NutDbGu0A PeCD+CxX0pdr8dewzThcCHPbIeEvpvFnWnkVd+Ns9gkY368Q X-Google-Smtp-Source: ADFU+vvjZYbx7yw6D42qU49X2AdYKRb+wwE/boG6wr6tdhE57By27JNVOyvqOTfhPYLqsPqBjiMMmM8UOmZHaQdMVGzs1UGN1xRV MIME-Version: 1.0 X-Received: by 2002:a05:6638:a99:: with SMTP id 25mr1264995jas.37.1584478803965; Tue, 17 Mar 2020 14:00:03 -0700 (PDT) Date: Tue, 17 Mar 2020 14:00:03 -0700 In-Reply-To: <000000000000f3b11305a0879723@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000043c5e505a11338e0@google.com> Subject: Re: WARNING in kfree (2) 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 has bisected this bug to: commit 599be01ee567b61f4471ee8078870847d0a11e8e Author: Cong Wang Date: Mon Feb 3 05:14:35 2020 +0000 net_sched: fix an OOB access in cls_tcindex bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13257803e00000 start commit: 2c523b34 Linux 5.6-rc5 git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=10a57803e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=17257803e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=c2e311dba9a02ba9 dashboard link: https://syzkaller.appspot.com/bug?extid=50ef5e5e5ea5f812f0c2 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15d8ae91e00000 Reported-by: syzbot+50ef5e5e5ea5f812f0c2@syzkaller.appspotmail.com Fixes: 599be01ee567 ("net_sched: fix an OOB access in cls_tcindex") For information about bisection process see: https://goo.gl/tpsmEJ#bisection