linux-kernel - Re: BUG: unable to handle kernel paging request in cpuacct_account

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Message-ID: <00000000000009ccbc058c4c09bf@google.com>
Date:   Thu, 27 Jun 2019 03:58:00 -0700
From:   syzbot <syzbot+a952f743523593b39174@...kaller.appspotmail.com>
To:     ast@...nel.org, daniel@...earbox.net, fweisbec@...il.com,
        john.fastabend@...il.com, linux-kernel@...r.kernel.org,
        mingo@...nel.org, netdev@...r.kernel.org, peterz@...radead.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de
Subject: Re: BUG: unable to handle kernel paging request in cpuacct_account_field

syzbot has bisected this bug to:

commit e9db4ef6bf4ca9894bb324c76e01b8f1a16b2650
Author: John Fastabend <john.fastabend@...il.com>
Date:   Sat Jun 30 13:17:47 2018 +0000

     bpf: sockhash fix omitted bucket lock in sock_close

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13dd1b79a00000
start commit:   abf02e29 Merge tag 'pm-5.2-rc6' of git://git.kernel.org/pu..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=103d1b79a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=17dd1b79a00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e5c77f8090a3b96b
dashboard link: https://syzkaller.appspot.com/bug?extid=a952f743523593b39174
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1372abc6a00000

Reported-by: syzbot+a952f743523593b39174@...kaller.appspotmail.com
Fixes: e9db4ef6bf4c ("bpf: sockhash fix omitted bucket lock in sock_close")

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