------------[ cut here ]------------ WARNING: CPU: 0 PID: 24145 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_unregister_nf_hook+0x2c8/0x300 drivers/net/ipvlan/ipvlan_l3s.c:148 Modules linked in: CPU: 0 PID: 24145 Comm: kworker/u4:7 Not tainted 5.15.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:ipvlan_unregister_nf_hook+0x2c8/0x300 drivers/net/ipvlan/ipvlan_l3s.c:148 Code: ff e8 8c 72 b1 fc 48 89 ef ba 02 00 00 00 48 c7 c6 00 42 0f 8a e8 78 c0 9b 02 5b 5d 41 5c 41 5d e9 6d 72 b1 fc e8 68 72 b1 fc <0f> 0b 5b 5d 41 5c 41 5d e9 5b 72 b1 fc 4c 89 e7 e8 63 42 f8 fc e9 RSP: 0018:ffffc900052cf990 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88802037a280 RSI: ffffffff84c4b138 RDI: 0000000000000003 RBP: ffff88802144a4c0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff84c4afac R11: 0000000000000000 R12: ffff8880462c9ec0 R13: ffff88807dd25800 R14: dffffc0000000000 R15: ffff88801d156b00 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005588c6e03888 CR3: 0000000054b95000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ipvlan_l3s_unregister+0xac/0x150 drivers/net/ipvlan/ipvlan_l3s.c:221 ipvlan_port_destroy drivers/net/ipvlan/ipvlan_main.c:99 [inline] ipvlan_uninit+0x468/0x540 drivers/net/ipvlan/ipvlan_main.c:176 unregister_netdevice_many+0xc85/0x1790 net/core/dev.c:11067 default_device_exit_batch+0x2fa/0x3c0 net/core/dev.c:11580 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:591 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295