linux-kernel - Re: general protection fault in cbs

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Message-ID: <000000000000337872059209df41@google.com>
Date:   Sun, 08 Sep 2019 05:33:00 -0700
From:   syzbot <syzbot+3a8d6a998cbb73bcf337@...kaller.appspotmail.com>
To:     davem@...emloft.net, hdanton@...a.com, jhs@...atatu.com,
        jiri@...nulli.us, leandro.maciel.dorileo@...el.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, vedang.patel@...el.com,
        xiyou.wangcong@...il.com
Subject: Re: general protection fault in cbs_destroy

syzbot has bisected this bug to:

commit e0a7683d30e91e30ee6cf96314ae58a0314a095e
Author: Leandro Dorileo <leandro.maciel.dorileo@...el.com>
Date:   Mon Apr 8 17:12:18 2019 +0000

     net/sched: cbs: fix port_rate miscalculation

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=158f3c01600000
start commit:   3b47fd5c Merge tag 'nfs-for-5.3-4' of git://git.linux-nfs...
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=178f3c01600000
console output: https://syzkaller.appspot.com/x/log.txt?x=138f3c01600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=144488c6c6c6d2b6
dashboard link: https://syzkaller.appspot.com/bug?extid=3a8d6a998cbb73bcf337
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17998f9e600000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10421efa600000

Reported-by: syzbot+3a8d6a998cbb73bcf337@...kaller.appspotmail.com
Fixes: e0a7683d30e9 ("net/sched: cbs: fix port_rate miscalculation")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection