[    2.315494] ------------[ cut here ]------------
[    2.315586] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/160
[    2.315679] Modules linked in:
[    2.315754] CPU: 2 UID: 0 PID: 160 Comm: unshare Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.315838] Tainted: [W]=WARN
[    2.315903] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.315974] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.316054] 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 76 b2 fb ff b9 a6 ff ff
[    2.316227] RSP: 0018:ff73bf80803ffcc8 EFLAGS: 00010286
[    2.316309] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.316389] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1350b541d35000
[    2.316490] RBP: 0000000000000000 R08: ff1350b54336b5d0 R09: ff1350b544c8a02c
[    2.316569] R10: ff1350b542ebd118 R11: fefefefefefefeff R12: 0000000000000000
[    2.316645] R13: 0000000000000010 R14: ff1350b542ebd000 R15: ff1350b541d35000
[    2.316727] FS:  00007f2ee2e95740(0000) GS:ff1350b5ddd96000(0000) knlGS:0000000000000000
[    2.316806] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.316876] CR2: 00007f2ee2f60820 CR3: 0000000004c05003 CR4: 0000000000771ef0
[    2.316954] PKRU: 55555554
[    2.317002] Call Trace:
[    2.317053]  <TASK>
[    2.317108]  rtmsg_ifinfo+0x3c/0xa0
[    2.317166]  register_netdevice+0x889/0x9f0
[    2.317223]  register_netdev+0x1e/0x30
[    2.317280]  loopback_net_init+0x57/0xb0
[    2.317340]  ? vsock_sysctl_init_net+0xb6/0x140
[    2.317406]  ops_init+0x68/0x140
[    2.317471]  setup_net+0x85/0x150
[    2.317529]  copy_net_ns+0xf5/0x200
[    2.317586]  create_new_namespaces+0x117/0x2f0
[    2.317653]  unshare_nsproxy_namespaces+0x85/0xb0
[    2.317717]  ksys_unshare+0x346/0x5e0
[    2.317777]  __x64_sys_unshare+0x12/0x20
[    2.317834]  do_syscall_64+0x104/0xfc0
[    2.317892]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.317956] RIP: 0033:0x7f2ee2f90bcb
[    2.318014] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
[    2.318158] RSP: 002b:00007ffce3db7e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[    2.318237] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2ee2f90bcb
[    2.318315] RDX: 0000000000000000 RSI: 00007ffce3db7bc0 RDI: 0000000040000000
[    2.318391] RBP: 00007ffce3db81e0 R08: 00007ffce3db7db0 R09: 0000000000000000
[    2.318475] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[    2.318551] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005617f271ab68
[    2.318629]  </TASK>
[    2.318676] ---[ end trace 0000000000000000 ]---
[    2.321916] ------------[ cut here ]------------
[    2.321981] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/160
[    2.322069] Modules linked in:
[    2.322133] CPU: 2 UID: 0 PID: 160 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.322229] Tainted: [W]=WARN
[    2.322284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.322353] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.322425] 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 76 b2 fb ff b9 a6 ff ff
[    2.322556] RSP: 0018:ff73bf80803ffd68 EFLAGS: 00010286
[    2.322619] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.322696] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1350b541d35000
[    2.322772] RBP: 0000000000000000 R08: ff1350b542ae6110 R09: ff1350b544c8f030
[    2.322849] R10: ff1350b544c44118 R11: fefefefefefefeff R12: 0000000000000000
[    2.322926] R13: 0000000000000010 R14: ff1350b544c44000 R15: ff1350b541d35000
[    2.323006] FS:  000000002003b400(0000) GS:ff1350b5ddd96000(0000) knlGS:0000000000000000
[    2.323084] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.323160] CR2: 00007fe16db81000 CR3: 0000000004dc7004 CR4: 0000000000771ef0
[    2.323240] PKRU: 55555554
[    2.323287] Call Trace:
[    2.323336]  <TASK>
[    2.323385]  rtmsg_ifinfo+0x3c/0xa0
[    2.323448]  register_netdevice+0x889/0x9f0
[    2.323507]  __tun_chr_ioctl+0x83c/0x16c0
[    2.323567]  ? do_sys_openat2+0x9a/0xe0
[    2.323626]  __x64_sys_ioctl+0xa1/0xe0
[    2.323685]  do_syscall_64+0x104/0xfc0
[    2.323743]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.323807] RIP: 0033:0x47cc8d
[    2.323863] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[    2.323993] RSP: 002b:00007ffd11e14ce0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.324071] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.324152] RDX: 00007ffd11e14d60 RSI: 00000000400454ca RDI: 0000000000000005
[    2.324228] RBP: 00007ffd11e14d30 R08: 0000000000000000 R09: 0000000000000000
[    2.324306] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd11e15238
[    2.324382] R13: 00007ffd11e152b8 R14: 0000000000000002 R15: 0000000000543540
[    2.324467]  </TASK>
[    2.324515] ---[ end trace 0000000000000000 ]---
[    2.324599] ------------[ cut here ]------------
[    2.324661] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/160
[    2.324745] Modules linked in:
[    2.324802] CPU: 2 UID: 0 PID: 160 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.324895] Tainted: [W]=WARN
[    2.324950] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.325019] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.325082] 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 76 b2 fb ff b9 a6 ff ff
[    2.325221] RSP: 0018:ff73bf80803ffd60 EFLAGS: 00010286
[    2.325285] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.325362] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1350b541d35000
[    2.325466] RBP: 0000000000000002 R08: ff1350b542ae6110 R09: ff1350b544c8f030
[    2.325543] R10: ff1350b544c44118 R11: fefefefefefefeff R12: 0000000000000000
[    2.325619] R13: 0000000000000010 R14: ff1350b544c44000 R15: ff1350b541d35000
[    2.325699] FS:  000000002003b400(0000) GS:ff1350b5ddd96000(0000) knlGS:0000000000000000
[    2.325777] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.325847] CR2: 00007fe16db81000 CR3: 0000000004dc7004 CR4: 0000000000771ef0
[    2.325926] PKRU: 55555554
[    2.325974] Call Trace:
[    2.326022]  <TASK>
[    2.326071]  rtnetlink_event+0x6e/0xb0
[    2.326132]  notifier_call_chain+0x6d/0x100
[    2.326191]  netdev_update_features+0x56/0x60
[    2.326257]  __tun_chr_ioctl+0xbf1/0x16c0
[    2.326315]  ? file_init_path+0x62/0x120
[    2.326374]  __x64_sys_ioctl+0xa1/0xe0
[    2.326438]  do_syscall_64+0x104/0xfc0
[    2.326495]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.326559] RIP: 0033:0x47cc8d
[    2.326616] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[    2.326747] RSP: 002b:00007ffd11e14d20 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.326825] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.326902] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[    2.326979] RBP: 00007ffd11e14d70 R08: 0000000000000005 R09: 0000000000001bd0
[    2.327056] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffd11e15238
[    2.327136] R13: 00007ffd11e152b8 R14: 0000000000000002 R15: 0000000000543540
[    2.327213]  </TASK>
[    2.327261] ---[ end trace 0000000000000000 ]---
[    2.327345] ------------[ cut here ]------------
[    2.327406] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/160
[    2.327496] Modules linked in:
[    2.327552] CPU: 2 UID: 0 PID: 160 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.327643] Tainted: [W]=WARN
[    2.327698] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.327767] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.327830] 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 76 b2 fb ff b9 a6 ff ff
[    2.327960] RSP: 0018:ff73bf80803ffc10 EFLAGS: 00010286
[    2.328024] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.328107] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1350b541d35000
[    2.328185] RBP: 0000000000000000 R08: ff1350b542ae6110 R09: ff1350b544c8c030
[    2.328262] R10: ff1350b544c44118 R11: fefefefefefefeff R12: 0000000000000000
[    2.328338] R13: 0000000000000010 R14: ff1350b544c44000 R15: ff1350b541d35000
[    2.328427] FS:  000000002003b400(0000) GS:ff1350b5ddd96000(0000) knlGS:0000000000000000
[    2.328506] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.328576] CR2: 00007fe16db81000 CR3: 0000000004dc7004 CR4: 0000000000771ef0
[    2.328654] PKRU: 55555554
[    2.328702] Call Trace:
[    2.328751]  <TASK>
[    2.328799]  rtmsg_ifinfo+0x3c/0xa0
[    2.328856]  __dev_notify_flags+0xb1/0xf0
[    2.328915]  netif_change_flags+0x54/0x70
[    2.328973]  dev_change_flags+0x45/0x80
[    2.329030]  devinet_ioctl+0x607/0x7f0
[    2.329097]  inet_ioctl+0x229/0x240
[    2.329154]  ? __rtnl_unlock+0x35/0x60
[    2.329211]  sock_do_ioctl+0x75/0x140
[    2.329270]  __x64_sys_ioctl+0xa1/0xe0
[    2.329328]  do_syscall_64+0x104/0xfc0
[    2.329385]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.329456] RIP: 0033:0x47cc8d
[    2.329512] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[    2.329644] RSP: 002b:00007ffd11e14d00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.329721] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.329797] RDX: 00007ffd11e14d70 RSI: 0000000000008914 RDI: 0000000000000006
[    2.329874] RBP: 00007ffd11e14d50 R08: 0000000000000005 R09: 0000000000001bd0
[    2.329952] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffd11e15238
[    2.330029] R13: 00007ffd11e152b8 R14: 0000000000000002 R15: 0000000000543540
[    2.330115]  </TASK>
[    2.330163] ---[ end trace 0000000000000000 ]---
[   47.296521] ------------[ cut here ]------------
[   47.296648] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/160
[   47.296743] Modules linked in:
[   47.296803] CPU: 2 UID: 0 PID: 160 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.296888] Tainted: [W]=WARN
[   47.296943] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.297018] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.297098] 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 76 b2 fb ff b9 a6 ff ff
[   47.297233] RSP: 0018:ff73bf80803ffb58 EFLAGS: 00010286
[   47.297297] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   47.297371] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1350b541d35f00
[   47.297446] RBP: 0000000000000000 R08: ff1350b542ae6110 R09: ff1350b544c8c030
[   47.297520] R10: ff1350b544c44118 R11: fefefefefefefeff R12: 0000000000000000
[   47.297609] R13: 0000000000000010 R14: ff1350b544c44000 R15: ff1350b541d35f00
[   47.297695] FS:  0000000000000000(0000) GS:ff1350b5ddd96000(0000) knlGS:0000000000000000
[   47.297778] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.297851] CR2: 00007fe16db81000 CR3: 0000000029a42005 CR4: 0000000000771ef0
[   47.297935] PKRU: 55555554
[   47.297986] Call Trace:
[   47.298041]  <TASK>
[   47.298387]  rtmsg_ifinfo+0x3c/0xa0
[   47.298466]  netif_close_many+0xed/0x190
[   47.298539]  unregister_netdevice_many_notify+0x267/0x9d0
[   47.298611]  ? __queue_work+0x141/0x550
[   47.298678]  unregister_netdevice_queue+0x9e/0xd0
[   47.298748]  __tun_detach+0x591/0x5b0
[   47.298813]  tun_chr_close+0x3f/0xc0
[   47.298872]  __fput+0xe8/0x2c0
[   47.298931]  task_work_run+0x63/0xa0
[   47.298992]  do_exit+0x2c1/0xba0
[   47.299054]  ? sk_prot_alloc.isra.0+0x73/0x100
[   47.299131]  do_group_exit+0x2d/0xc0
[   47.299192]  ? sk_prot_alloc.isra.0+0x87/0x100
[   47.299260]  ? cgroup_sk_alloc+0x5c/0x140
[   47.299323]  get_signal+0x82e/0x900
[   47.299383]  ? __d_alloc+0x40/0x200
[   47.299445]  ? alloc_empty_file+0x3f/0xd0
[   47.299502]  arch_do_signal_or_restart+0x77/0x2b0
[   47.299577]  ? alloc_file_pseudo+0xc1/0x110
[   47.299633]  ? __sys_socket+0xda/0x130
[   47.299693]  exit_to_user_mode_loop+0x75/0x4a0
[   47.299762]  do_syscall_64+0x439/0xfc0
[   47.299823]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.299887] RIP: 0033:0x47ea2b
[   47.299943] Code: Unable to access opcode bytes at 0x47ea01.
[   47.300012] RSP: 002b:00007ffd11e14788 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
[   47.300096] RAX: 0000000000000007 RBX: 00007ffd11e14860 RCX: 000000000047ea2b
[   47.300172] RDX: 0000000000000000 RSI: 0000000000080003 RDI: 0000000000000010
[   47.300249] RBP: 00007ffd11e147c0 R08: 0000000000000041 R09: 000000002003c3e0
[   47.300325] R10: 0000000000000040 R11: 0000000000000206 R12: 00007ffd11e15238
[   47.300401] R13: 00007ffd11e152b8 R14: 00007ffd11e14d38 R15: 0000000000543540
[   47.300478]  </TASK>
[   47.300532] ---[ end trace 0000000000000000 ]---
[   47.300672] ------------[ cut here ]------------
[   47.300735] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/160
[   47.300819] Modules linked in:
[   47.300875] CPU: 2 UID: 0 PID: 160 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.300964] Tainted: [W]=WARN
[   47.301018] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.301088] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.301158] 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 76 b2 fb ff b9 a6 ff ff
[   47.301287] RSP: 0018:ff73bf80803ffbc8 EFLAGS: 00010286
[   47.301351] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.301426] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1350b541d35f00
[   47.301502] RBP: 0000000000000000 R08: ff1350b542ae6110 R09: ff1350b544e00030
[   47.301586] R10: ff1350b544c44118 R11: fefefefefefefeff R12: 0000000000000000
[   47.301662] R13: 0000000000000011 R14: ff1350b544c44000 R15: ff1350b541d35f00
[   47.301740] FS:  0000000000000000(0000) GS:ff1350b5ddd96000(0000) knlGS:0000000000000000
[   47.301817] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.301887] CR2: 00007fe16db81000 CR3: 000000000191c005 CR4: 0000000000771ef0
[   47.301965] PKRU: 55555554
[   47.302012] Call Trace:
[   47.302061]  <TASK>
[   47.302699]  unregister_netdevice_many_notify+0x877/0x9d0
[   47.302768]  unregister_netdevice_queue+0x9e/0xd0
[   47.302831]  __tun_detach+0x591/0x5b0
[   47.302889]  tun_chr_close+0x3f/0xc0
[   47.302945]  __fput+0xe8/0x2c0
[   47.303002]  task_work_run+0x63/0xa0
[   47.303060]  do_exit+0x2c1/0xba0
[   47.303123]  ? sk_prot_alloc.isra.0+0x73/0x100
[   47.303186]  do_group_exit+0x2d/0xc0
[   47.303242]  ? sk_prot_alloc.isra.0+0x87/0x100
[   47.303305]  ? cgroup_sk_alloc+0x5c/0x140
[   47.303362]  get_signal+0x82e/0x900
[   47.303419]  ? __d_alloc+0x40/0x200
[   47.303476]  ? alloc_empty_file+0x3f/0xd0
[   47.303540]  arch_do_signal_or_restart+0x77/0x2b0
[   47.303604]  ? alloc_file_pseudo+0xc1/0x110
[   47.303661]  ? __sys_socket+0xda/0x130
[   47.303718]  exit_to_user_mode_loop+0x75/0x4a0
[   47.303782]  do_syscall_64+0x439/0xfc0
[   47.303839]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.303904] RIP: 0033:0x47ea2b
[   47.303959] Code: Unable to access opcode bytes at 0x47ea01.
[   47.304027] RSP: 002b:00007ffd11e14788 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
[   47.304110] RAX: 0000000000000007 RBX: 00007ffd11e14860 RCX: 000000000047ea2b
[   47.304184] RDX: 0000000000000000 RSI: 0000000000080003 RDI: 0000000000000010
[   47.304260] RBP: 00007ffd11e147c0 R08: 0000000000000041 R09: 000000002003c3e0
[   47.304336] R10: 0000000000000040 R11: 0000000000000206 R12: 00007ffd11e15238
[   47.304410] R13: 00007ffd11e152b8 R14: 00007ffd11e14d38 R15: 0000000000543540
[   47.304486]  </TASK>
[   47.304539] ---[ end trace 0000000000000000 ]---
[   47.312188] ------------[ cut here ]------------
[   47.312232] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:0/12
[   47.312289] Modules linked in:
[   47.312314] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.312369] Tainted: [W]=WARN
[   47.312391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.312432] Workqueue: netns cleanup_net
[   47.312457] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.312488] 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 76 b2 fb ff b9 a6 ff ff
[   47.312592] RSP: 0018:ff73bf8080067c78 EFLAGS: 00010286
[   47.312621] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.312668] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1350b541d35b00
[   47.312710] RBP: 0000000000000000 R08: ff1350b54336b5d0 R09: ff1350b542e9f02c
[   47.312757] R10: ff1350b542ebd118 R11: fefefefefefefeff R12: 0000000000000000
[   47.312798] R13: 0000000000000011 R14: ff1350b542ebd000 R15: ff1350b541d35b00
[   47.312841] FS:  0000000000000000(0000) GS:ff1350b5ddc96000(0000) knlGS:0000000000000000
[   47.312885] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.312920] CR2: 000055be5c15e2b8 CR3: 0000000001972001 CR4: 0000000000771ef0
[   47.312965] PKRU: 55555554
[   47.312980] Call Trace:
[   47.312995]  <TASK>
[   47.313008]  unregister_netdevice_many_notify+0x877/0x9d0
[   47.313036]  default_device_exit_batch+0x318/0x390
[   47.313063]  ops_undo_list+0x10b/0x240
[   47.313084]  cleanup_net+0x1d7/0x2e0
[   47.313110]  process_one_work+0x162/0x360
[   47.313137]  worker_thread+0x16e/0x2d0
[   47.313159]  ? rescuer_thread+0x510/0x510
[   47.313183]  kthread+0xe1/0x120
[   47.313206]  ? kthread_park+0xa0/0xa0
[   47.313227]  ret_from_fork+0x16d/0x250
[   47.313249]  ? kthread_park+0xa0/0xa0
[   47.313271]  ret_from_fork_asm+0x11/0x20
[   47.313292]  </TASK>
[   47.313307] ---[ end trace 0000000000000000 ]---