------------[ cut here ]------------
WARNING: CPU: 1 PID: 8774 at net/netfilter/core.c:495 __nf_unregister_net_hook+0x498/0x6d0 net/netfilter/core.c:495
Modules linked in:
CPU: 1 PID: 8774 Comm: kworker/u4:12 Not tainted 5.18.0-rc5-next-20220506-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:__nf_unregister_net_hook+0x498/0x6d0 net/netfilter/core.c:495
Code: c1 ea 03 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 13 02 00 00 4c 63 6b 1c e9 4d ff ff ff e8 28 cc e6 f9 <0f> 0b 48 c7 c7 e0 89 62 8d e8 3a 23 e2 01 e9 98 fd ff ff 48 89 f7
RSP: 0018:ffffc900059278f0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88804b3c9418 RCX: 0000000000000000
RDX: ffff8880196ebb00 RSI: ffffffff87938ff8 RDI: 0000000000000003
RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffff8dbac3d7
R10: ffffffff87938c1f R11: 000000000000004b R12: ffff88807c4d03d0
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88804b3c9420
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5894ad4320 CR3: 000000001fc6a000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nf_unregister_net_hook+0xd5/0x110 net/netfilter/core.c:533
 nft_unregister_flowtable_hook net/netfilter/nf_tables_api.c:7289 [inline]
 nft_flowtable_event net/netfilter/nf_tables_api.c:7961 [inline]
 nf_tables_flowtable_event+0x230/0x460 net/netfilter/nf_tables_api.c:7985
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:84
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1943
 call_netdevice_notifiers_extack net/core/dev.c:1981 [inline]
 call_netdevice_notifiers net/core/dev.c:1995 [inline]
 unregister_netdevice_many+0x92e/0x1890 net/core/dev.c:10791
 default_device_exit_batch+0x449/0x590 net/core/dev.c:11285
 ops_exit_list+0x125/0x170 net/core/net_namespace.c:167
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>