bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves bond4 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5900 at net/core/dev.c:10869 unregister_netdevice_many_notify+0x14c3/0x19d0 net/core/dev.c:10869 Modules linked in: CPU: 1 PID: 5900 Comm: kworker/u4:13 Not tainted 6.1.0-rc4-next-20221111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: netns cleanup_net RIP: 0010:unregister_netdevice_many_notify+0x14c3/0x19d0 net/core/dev.c:10869 Code: c1 1a 00 00 48 c7 c6 40 40 f5 8a 48 c7 c7 40 41 f5 8a c6 05 69 97 62 06 01 e8 53 c5 f0 01 0f 0b e9 01 f9 ff ff e8 0d 7e 11 fa <0f> 0b e9 d8 f8 ff ff e8 41 6a 5e fa e9 19 ed ff ff 4c 89 ef e8 64 RSP: 0018:ffffc9000afdfa38 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000299d5e01 RCX: 0000000000000000 RDX: ffff8880359c0000 RSI: ffffffff876b4f63 RDI: 0000000000000001 RBP: ffff88801c150f80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801c150f80 R14: ffff88807aadc000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e354063950 CR3: 000000000bc8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unregister_netdevice_many net/core/dev.c:10899 [inline] default_device_exit_batch+0x44d/0x590 net/core/dev.c:11352 ops_exit_list+0x125/0x170 net/core/net_namespace.c:174 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:606 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308