netdev - Re: [syzbot] WARNING in idr_get

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Message-ID: <0000000000003e409f05c3c5f190@google.com>
Date:   Wed, 02 Jun 2021 03:30:06 -0700
From:   syzbot <syzbot+f7204dcf3df4bb4ce42c@...kaller.appspotmail.com>
To:     anmol.karan123@...il.com, bjorn.andersson@...aro.org,
        coreteam@...filter.org, davem@...emloft.net, dsahern@...nel.org,
        ebiggers@...gle.com, ebiggers@...nel.org, eric.dumazet@...il.com,
        fw@...len.de, kadlec@...filter.org, kuba@...nel.org,
        linux-fsdevel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        linux-kernel@...r.kernel.org, manivannan.sadhasivam@...aro.org,
        necip@...gle.com, netdev@...r.kernel.org,
        netfilter-devel@...r.kernel.org, pablo@...filter.org,
        syzkaller-bugs@...glegroups.com, willy@...radead.org,
        yoshfuji@...ux-ipv6.org
Subject: Re: [syzbot] WARNING in idr_get_next

syzbot suspects this issue was fixed by commit:

commit 43016d02cf6e46edfc4696452251d34bba0c0435
Author: Florian Westphal <fw@...len.de>
Date:   Mon May 3 11:51:15 2021 +0000

    netfilter: arptables: use pernet ops struct during unregister

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11518847d00000
start commit:   4d41ead6 Merge tag 'block-5.9-2020-08-28' of git://git.ker..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650
dashboard link: https://syzkaller.appspot.com/bug?extid=f7204dcf3df4bb4ce42c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17a1352e900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11fdaf41900000

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

#syz fix: netfilter: arptables: use pernet ops struct during unregister

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