netdev - Re: BUG: unable to handle kernel paging request in is_bpf_text

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Message-ID: <00000000000048021005952cc62b@google.com>
Date:   Fri, 18 Oct 2019 03:27:01 -0700
From:   syzbot <syzbot+710043c5d1d5b5013bc7@...kaller.appspotmail.com>
To:     ast@...nel.org, bpf@...r.kernel.org, daniel@...earbox.net,
        davem@...emloft.net, hawk@...nel.org, jakub.kicinski@...ronome.com,
        joe@...d.net.nz, joeypabalinas@...il.com, john.fastabend@...il.com,
        kafai@...com, linux-kernel@...r.kernel.org,
        mauricio.vasquez@...ito.it, netdev@...r.kernel.org,
        quentin.monnet@...ronome.com, songliubraving@...com,
        syzkaller-bugs@...glegroups.com, yhs@...com
Subject: Re: BUG: unable to handle kernel paging request in is_bpf_text_address

syzbot has bisected this bug to:

commit 6c4fc209fcf9d27efbaa48368773e4d2bfbd59aa
Author: Daniel Borkmann <daniel@...earbox.net>
Date:   Sat Dec 15 23:49:47 2018 +0000

     bpf: remove useless version check for prog load

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14306908e00000
start commit:   283ea345 coccinelle: api/devm_platform_ioremap_resource: r..
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=16306908e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=12306908e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f0a8b0a0736a2ac1
dashboard link: https://syzkaller.appspot.com/bug?extid=710043c5d1d5b5013bc7
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=142676bb600000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11a2cebb600000

Reported-by: syzbot+710043c5d1d5b5013bc7@...kaller.appspotmail.com
Fixes: 6c4fc209fcf9 ("bpf: remove useless version check for prog load")

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