bond3 (unregistering): Released all slaves bond2 (unregistering): Released all slaves bond1 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 3 PID: 25245 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: 3 PID: 25245 Comm: kworker/u16:6 Not tainted 5.15.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:ipvlan_unregister_nf_hook+0x2c8/0x300 drivers/net/ipvlan/ipvlan_l3s.c:148 Code: ff e8 2c 54 b4 fc 48 89 ef ba 02 00 00 00 48 c7 c6 80 03 10 8a e8 18 d3 9a 02 5b 5d 41 5c 41 5d e9 0d 54 b4 fc e8 08 54 b4 fc <0f> 0b 5b 5d 41 5c 41 5d e9 fb 53 b4 fc 4c 89 e7 e8 53 80 fa fc e9 RSP: 0018:ffffc90003fdf990 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888015e70000 RSI: ffffffff84c31368 RDI: 0000000000000003 RBP: ffff888023eb9a40 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff84c311dc R11: 0000000000000000 R12: ffff888072d7fe38 R13: ffff888072d47000 R14: dffffc0000000000 R15: ffff888079825c80 FS: 0000000000000000(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8b8e6db85e CR3: 000000000b68e000 CR4: 0000000000150ee0 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+0xc83/0x1790 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+0x9b2/0x1690 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295