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Date:   Sun, 20 Dec 2020 01:37:03 -0800
From:   syzbot <syzbot+3654c027d861c6df4b06@...kaller.appspotmail.com>
To:     Markus.Elfring@....de, bp@...en8.de, coreteam@...filter.org,
        davem@...emloft.net, fw@...len.de, fweisbec@...il.com,
        hdanton@...a.com, hpa@...or.com, jmaloy@...hat.com,
        jmattson@...gle.com, joro@...tes.org, kadlec@...filter.org,
        kuba@...nel.org, kuznet@....inr.ac.ru, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, mingo@...nel.org, mingo@...hat.com,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, pbonzini@...hat.com,
        sean.j.christopherson@...el.com, subashab@...eaurora.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        tuong.t.lien@...tech.com.au, vkuznets@...hat.com,
        wanpengli@...cent.com, x86@...nel.org, yoshfuji@...ux-ipv6.org
Subject: Re: INFO: rcu detected stall in tipc_release

syzbot suspects this issue was fixed by commit:

commit cc00bcaa589914096edef7fb87ca5cee4a166b5c
Author: Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>
Date:   Wed Nov 25 18:27:22 2020 +0000

    netfilter: x_tables: Switch synchronization to RCU

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1445cb37500000
start commit:   7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=7be693511b29b338
dashboard link: https://syzkaller.appspot.com/bug?extid=3654c027d861c6df4b06
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12948233100000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11344c05100000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: netfilter: x_tables: Switch synchronization to RCU

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

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