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Message-ID: <00000000000011ec5105edb50386@google.com>
Date:   Thu, 17 Nov 2022 17:56:19 -0800
From:   syzbot <syzbot+703d9e154b3b58277261@...kaller.appspotmail.com>
To:     Jason@...c4.com, davem@...emloft.net, edumazet@...gle.com,
        frederic@...nel.org, gnault@...hat.com, jacob.e.keller@...el.com,
        jakub@...udflare.com, jiri@...dia.com, johannes@...solutions.net,
        juri.lelli@...hat.com, kirill.shutemov@...ux.intel.com,
        kuba@...nel.org, linux-kernel@...r.kernel.org,
        mark.rutland@....com, netdev@...r.kernel.org,
        nicolas.dichtel@...nd.com, pabeni@...hat.com, paul@...l-moore.com,
        peterz@...radead.org, razor@...ckwall.org,
        sathyanarayanan.kuppuswamy@...ux.intel.com, steven.price@....com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        tparkin@...alix.com
Subject: Re: [syzbot] BUG: sleeping function called from invalid context in static_key_slow_inc

syzbot has bisected this issue to:

commit b68777d54fac21fc833ec26ea1a2a84f975ab035
Author: Jakub Sitnicki <jakub@...udflare.com>
Date:   Mon Nov 14 19:16:19 2022 +0000

    l2tp: Serialize access to sk_user_data with sk_callback_lock

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1600bb49880000
start commit:   064bc7312bd0 netdevsim: Fix memory leak of nsim_dev->fa_co..
git tree:       net
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1500bb49880000
console output: https://syzkaller.appspot.com/x/log.txt?x=1100bb49880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a33ac7bbc22a8c35
dashboard link: https://syzkaller.appspot.com/bug?extid=703d9e154b3b58277261
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13cd2f79880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=109e1695880000

Reported-by: syzbot+703d9e154b3b58277261@...kaller.appspotmail.com
Fixes: b68777d54fac ("l2tp: Serialize access to sk_user_data with sk_callback_lock")

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

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