[  107.665079] ------------[ cut here ]------------
[  107.665169] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:0/12
[  107.665239] Modules linked in: nf_conntrack_netlink xt_REDIRECT tcp_diag inet_diag nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp nft_compat nf_tables x_tables veth
[  107.665352] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[  107.665410] Tainted: [W]=WARN
[  107.665428] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  107.665466] Workqueue: netns cleanup_net
[  107.665493] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[  107.665521] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 e6 ab fb ff b9 a6 ff ff
[  107.665619] RSP: 0018:ff66c2bac0067c08 EFLAGS: 00010286
[  107.665644] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[  107.665685] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff46dff9c1845900
[  107.665725] RBP: 0000000000000000 R08: ff46dff9c18f9c50 R09: ff46dff9c464402c
[  107.665767] R10: ff46dff9c4415120 R11: fefefefefefefeff R12: 0000000000000000
[  107.665807] R13: 0000000000000010 R14: ff46dff9c4415000 R15: ff46dff9c1845900
[  107.665851] FS:  0000000000000000(0000) GS:ff46dffa71c8c000(0000) knlGS:0000000000000000
[  107.665895] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.665931] CR2: 00005639c5ff82b8 CR3: 000000000204b001 CR4: 0000000000771ef0
[  107.665970] PKRU: 55555554
[  107.665986] Call Trace:
[  107.666013]  <TASK>
[  107.666029]  rtmsg_ifinfo+0x3c/0xa0
[  107.666052]  netif_close_many+0xed/0x190
[  107.666074]  unregister_netdevice_many_notify+0x267/0x9d0
[  107.666106]  default_device_exit_batch+0x2f8/0x370
[  107.666135]  ops_undo_list+0x10b/0x240
[  107.666157]  cleanup_net+0x1d7/0x2e0
[  107.666180]  process_one_work+0x162/0x360
[  107.666205]  worker_thread+0x16e/0x2d0
[  107.666226]  ? rescuer_thread+0x510/0x510
[  107.666247]  kthread+0xe1/0x120
[  107.666267]  ? kthread_park+0xa0/0xa0
[  107.666288]  ret_from_fork+0x18e/0x290
[  107.666311]  ? kthread_park+0xa0/0xa0
[  107.666334]  ret_from_fork_asm+0x11/0x20
[  107.666356]  </TASK>
[  107.666372] ---[ end trace 0000000000000000 ]---
[  107.666478] ------------[ cut here ]------------
[  107.666505] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:0/12
[  107.666561] Modules linked in: nf_conntrack_netlink xt_REDIRECT tcp_diag inet_diag nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp nft_compat nf_tables x_tables veth
[  107.666646] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[  107.666698] Tainted: [W]=WARN
[  107.666725] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  107.666759] Workqueue: netns cleanup_net
[  107.666781] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[  107.666809] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 e6 ab fb ff b9 a6 ff ff
[  107.666896] RSP: 0018:ff66c2bac0067c78 EFLAGS: 00010286
[  107.666924] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[  107.666963] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff46dff9c1845900
[  107.667003] RBP: 0000000000000000 R08: ff46dff9c18f9c50 R09: ff46dff9c44c702c
[  107.667042] R10: ff46dff9c4415120 R11: fefefefefefefeff R12: 0000000000000000
[  107.667088] R13: 0000000000000011 R14: ff46dff9c4415000 R15: ff46dff9c1845900
[  107.667127] FS:  0000000000000000(0000) GS:ff46dffa71c8c000(0000) knlGS:0000000000000000
[  107.667169] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.667204] CR2: 00005639c5ff82b8 CR3: 000000000204b001 CR4: 0000000000771ef0
[  107.667246] PKRU: 55555554
[  107.667260] Call Trace:
[  107.667279]  <TASK>
[  107.667294]  unregister_netdevice_many_notify+0x877/0x9d0
[  107.667321]  default_device_exit_batch+0x2f8/0x370
[  107.667348]  ops_undo_list+0x10b/0x240
[  107.667369]  cleanup_net+0x1d7/0x2e0
[  107.667389]  process_one_work+0x162/0x360
[  107.667413]  worker_thread+0x16e/0x2d0
[  107.667433]  ? rescuer_thread+0x510/0x510
[  107.667456]  kthread+0xe1/0x120
[  107.667477]  ? kthread_park+0xa0/0xa0
[  107.667499]  ret_from_fork+0x18e/0x290
[  107.667520]  ? kthread_park+0xa0/0xa0
[  107.667548]  ret_from_fork_asm+0x11/0x20
[  107.667571]  </TASK>
[  107.667585] ---[ end trace 0000000000000000 ]---