syzbot suspects this issue was fixed by commit:
commit eeaac3634ee0e3f35548be35275efeca888e9b23
Author: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx>
Date: Sat Aug 22 12:06:36 2020 +0000
net: nexthop: don't allow empty NHA_GROUP
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=116177a7900000
start commit: c3d8f220 Merge tag 'kbuild-fixes-v5.9' of git://git.kernel..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=bb68b9e8a8cc842f
dashboard link: https://syzkaller.appspot.com/bug?extid=b2c08a2f5cfef635cc3a
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14d75e39900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12aea519900000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: net: nexthop: don't allow empty NHA_GROUP
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
