Re: [syzbot] WARNING in idr_get_next

[syzbot]

syzbot suspects this issue was fixed by commit:

commit 43016d02cf6e46edfc4696452251d34bba0c0435
Author: Florian Westphal <fw@xxxxxxxxx>
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