bond1 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 1 PID: 18466 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_unregister_nf_hook drivers/net/ipvlan/ipvlan_l3s.c:148 [inline] WARNING: CPU: 1 PID: 18466 at drivers/net/ipvlan/ipvlan_l3s.c:148 ipvlan_l3s_unregister+0x145/0x1d0 drivers/net/ipvlan/ipvlan_l3s.c:221 Modules linked in: CPU: 1 PID: 18466 Comm: kworker/u4:13 Not tainted 5.15.0-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 drivers/net/ipvlan/ipvlan_l3s.c:148 [inline] RIP: 0010:ipvlan_l3s_unregister+0x145/0x1d0 drivers/net/ipvlan/ipvlan_l3s.c:221 Code: 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 12 d7 a3 fc 49 c7 06 00 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 5b 05 58 fc <0f> 0b eb c8 e8 52 05 58 fc c6 05 b2 ce be 08 01 48 c7 c7 c0 67 08 RSP: 0018:ffffc90003647830 EFLAGS: 00010293 RAX: ffffffff852c4f15 RBX: 1ffff110070bbbd6 RCX: ffff88801a4b0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff852c4e9e R09: fffffbfff1bfcc7e R10: fffffbfff1bfcc7e R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880385ddeb0 R14: ffff88806d9fe000 R15: ffff8880776bb480 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f60c67810f3 CR3: 0000000018bf2000 CR4: 00000000003526e0 Call Trace: ipvlan_port_destroy drivers/net/ipvlan/ipvlan_main.c:99 [inline] ipvlan_uninit+0x1f8/0x440 drivers/net/ipvlan/ipvlan_main.c:176 unregister_netdevice_many+0x138e/0x19e0 net/core/dev.c:11091 default_device_exit_batch+0x44b/0x4b0 net/core/dev.c:11604 ops_exit_list net/core/net_namespace.c:171 [inline] cleanup_net+0x7ec/0xc50 net/core/net_namespace.c:593 process_one_work+0x853/0x1140 kernel/workqueue.c:2298 worker_thread+0xac1/0x1320 kernel/workqueue.c:2445 kthread+0x468/0x490 kernel/kthread.c:327 ret_from_fork+0x1f/0x30