syzbot suspects this issue was fixed by commit:
commit cc00bcaa589914096edef7fb87ca5cee4a166b5c
Author: Subash Abhinov Kasiviswanathan <subashab@xxxxxxxxxxxxxx>
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=10879d68d00000
start commit: 59126901 Merge tag 'perf-tools-fixes-for-v5.9-2020-09-03' ..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=3c5f6ce8d5b68299
dashboard link: https://syzkaller.appspot.com/bug?extid=621fd33c0b53d15ee8de
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=152c3af9900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12213b71900000
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
