batman_adv: batadv0: Removing interface: batadv_slave_1 bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state pimreg (unregistering): left allmulticast mode bond9 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 0 PID: 30247 at net/core/dev.c:10867 unregister_netdevice_many_notify+0x1463/0x1910 net/core/dev.c:10867 Modules linked in: CPU: 0 PID: 30247 Comm: kworker/u4:32 Not tainted 6.3.0-rc2-next-20230317-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: netns cleanup_net RIP: 0010:unregister_netdevice_many_notify+0x1463/0x1910 net/core/dev.c:10867 Code: af 1a 00 00 48 c7 c6 c0 c6 5c 8b 48 c7 c7 00 c7 5c 8b c6 05 c1 4b 59 06 01 e8 f9 aa 41 f9 0f 0b e9 25 f7 ff ff e8 ed 3a 79 f9 <0f> 0b e9 fc f6 ff ff e8 61 bf cb f9 e9 7b ed ff ff 4c 89 ef e8 b4 RSP: 0018:ffffc90003a2fa38 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000047318801 RCX: 0000000000000000 RDX: ffff88802e8857c0 RSI: ffffffff88097963 RDI: 0000000000000001 RBP: ffff88802bae4a00 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88802bae4a00 R14: ffff88803bc9c000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559ef3464950 CR3: 0000000043f8d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unregister_netdevice_many net/core/dev.c:10897 [inline] default_device_exit_batch+0x451/0x5b0 net/core/dev.c:11350 ops_exit_list+0x125/0x170 net/core/net_namespace.c:175 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:614 process_one_work+0x991/0x15c0 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x33e/0x440 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308