syzbot has bisected this issue to:
commit e4b8954074f6d0db01c8c97d338a67f9389c042f
Author: Eric Dumazet <edumazet@xxxxxxxxxx>
Date: Tue Dec 7 01:30:37 2021 +0000
netlink: add net device refcount tracker to struct ethnl_req_info
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=109e6fcbb00000
start commit: 434ed2138994 Merge branch 'tc-action-offload'
git tree: net-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=129e6fcbb00000
console output: https://syzkaller.appspot.com/x/log.txt?x=149e6fcbb00000
kernel config: https://syzkaller.appspot.com/x/.config?x=7488eea316146357
dashboard link: https://syzkaller.appspot.com/bug?extid=4c63f36709a642f801c5
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14141ca3b00000
Reported-by: syzbot+4c63f36709a642f801c5@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: e4b8954074f6 ("netlink: add net device refcount tracker to struct ethnl_req_info")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
