[    2.272268] ------------[ cut here ]------------
[    2.272317] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: unshare/159
[    2.272371] Modules linked in:
[    2.272393] CPU: 0 UID: 0 PID: 159 Comm: unshare Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.272436] Tainted: [W]=WARN
[    2.272461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.272489] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.272509] 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
[    2.272574] RSP: 0018:ff8b85e2403a7cc8 EFLAGS: 00010286
[    2.272594] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.272625] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff438ea58308d000
[    2.272659] RBP: 0000000000000000 R08: ff438ea5832c5dd0 R09: ff438ea58301402c
[    2.272691] R10: ff438ea583017118 R11: fefefefefefefeff R12: 0000000000000000
[    2.272717] R13: 0000000000000010 R14: ff438ea583017000 R15: ff438ea58308d000
[    2.272749] FS:  00007fdbca7d4740(0000) GS:ff438ea603c96000(0000) knlGS:0000000000000000
[    2.272778] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.272801] CR2: 000055f338d11310 CR3: 0000000004a0f004 CR4: 0000000000771ef0
[    2.272831] PKRU: 55555554
[    2.272841] Call Trace:
[    2.272854]  <TASK>
[    2.272866]  rtmsg_ifinfo+0x3c/0xa0
[    2.272880]  register_netdevice+0x889/0x9f0
[    2.272897]  register_netdev+0x1e/0x30
[    2.272912]  loopback_net_init+0x57/0xb0
[    2.272936]  ? vsock_sysctl_init_net+0xb6/0x140
[    2.272956]  ops_init+0x68/0x140
[    2.272976]  setup_net+0x85/0x150
[    2.273002]  copy_net_ns+0xf5/0x200
[    2.273020]  create_new_namespaces+0x117/0x2f0
[    2.273044]  unshare_nsproxy_namespaces+0x85/0xb0
[    2.273063]  ksys_unshare+0x346/0x5e0
[    2.273091]  __x64_sys_unshare+0x12/0x20
[    2.273106]  do_syscall_64+0x104/0xfc0
[    2.273121]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.273144] RIP: 0033:0x7fdbca8cfbcb
[    2.273163] 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
[    2.273224] RSP: 002b:00007ffeafd39548 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[    2.273256] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdbca8cfbcb
[    2.273290] RDX: 0000000000000000 RSI: 00007ffeafd392b0 RDI: 0000000040000000
[    2.273321] RBP: 00007ffeafd398d0 R08: 00007ffeafd394a0 R09: 0000000000000000
[    2.273351] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[    2.273383] R13: 0000000000000000 R14: 00000000ffffffff R15: 000055f338d14b68
[    2.273410]  </TASK>
[    2.273421] ---[ end trace 0000000000000000 ]---
[    2.277210] ------------[ cut here ]------------
[    2.277247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/159
[    2.277285] Modules linked in:
[    2.277307] CPU: 0 UID: 0 PID: 159 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.277344] Tainted: [W]=WARN
[    2.277357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.277381] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.277402] 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
[    2.277456] RSP: 0018:ff8b85e2403a7d68 EFLAGS: 00010286
[    2.277474] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.277502] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff438ea58308d000
[    2.277530] RBP: 0000000000000000 R08: ff438ea581949910 R09: ff438ea584ac9030
[    2.277555] R10: ff438ea584998118 R11: fefefefefefefeff R12: 0000000000000000
[    2.277589] R13: 0000000000000010 R14: ff438ea584998000 R15: ff438ea58308d000
[    2.277615] FS:  00000000094d1400(0000) GS:ff438ea603c96000(0000) knlGS:0000000000000000
[    2.277645] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.277668] CR2: 00007f5610b4a000 CR3: 00000000031a1005 CR4: 0000000000771ef0
[    2.277696] PKRU: 55555554
[    2.277706] Call Trace:
[    2.277716]  <TASK>
[    2.277727]  rtmsg_ifinfo+0x3c/0xa0
[    2.277741]  register_netdevice+0x889/0x9f0
[    2.277757]  __tun_chr_ioctl+0x83c/0x16c0
[    2.277778]  ? do_sys_openat2+0x9a/0xe0
[    2.277793]  __x64_sys_ioctl+0xa1/0xe0
[    2.277811]  do_syscall_64+0x104/0xfc0
[    2.277827]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.277847] RIP: 0033:0x47cc8d
[    2.277860] 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
[    2.277920] RSP: 002b:00007ffce033e8d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.277947] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.277973] RDX: 00007ffce033e950 RSI: 00000000400454ca RDI: 0000000000000005
[    2.278002] RBP: 00007ffce033e920 R08: 0000000000000000 R09: 0000000000000000
[    2.278027] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce033ee28
[    2.278051] R13: 00007ffce033eea8 R14: 0000000000000002 R15: 0000000000543540
[    2.278080]  </TASK>
[    2.278090] ---[ end trace 0000000000000000 ]---
[    2.278121] ------------[ cut here ]------------
[    2.278141] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/159
[    2.278170] Modules linked in:
[    2.278182] CPU: 0 UID: 0 PID: 159 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.278216] Tainted: [W]=WARN
[    2.278233] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.278257] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.278277] 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
[    2.278334] RSP: 0018:ff8b85e2403a7d60 EFLAGS: 00010286
[    2.278353] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.278376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff438ea58308d000
[    2.278402] RBP: 0000000000000002 R08: ff438ea581949910 R09: ff438ea584ac9030
[    2.278426] R10: ff438ea584998118 R11: fefefefefefefeff R12: 0000000000000000
[    2.278450] R13: 0000000000000010 R14: ff438ea584998000 R15: ff438ea58308d000
[    2.278487] FS:  00000000094d1400(0000) GS:ff438ea603c96000(0000) knlGS:0000000000000000
[    2.278517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.278540] CR2: 00007f5610b4a000 CR3: 00000000031a1005 CR4: 0000000000771ef0
[    2.278565] PKRU: 55555554
[    2.278574] Call Trace:
[    2.278583]  <TASK>
[    2.278593]  rtnetlink_event+0x6e/0xb0
[    2.278608]  notifier_call_chain+0x6d/0x100
[    2.278621]  netdev_update_features+0x56/0x60
[    2.278646]  __tun_chr_ioctl+0xbf1/0x16c0
[    2.278661]  ? file_init_path+0x62/0x120
[    2.278679]  __x64_sys_ioctl+0xa1/0xe0
[    2.278692]  do_syscall_64+0x104/0xfc0
[    2.278705]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.278722] RIP: 0033:0x47cc8d
[    2.278739] 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
[    2.278795] RSP: 002b:00007ffce033e910 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.278821] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.278847] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[    2.278872] RBP: 00007ffce033e960 R08: 0000000000000005 R09: 00000000000003a0
[    2.278898] R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffce033ee28
[    2.278921] R13: 00007ffce033eea8 R14: 0000000000000002 R15: 0000000000543540
[    2.278947]  </TASK>
[    2.278956] ---[ end trace 0000000000000000 ]---
[    2.278988] ------------[ cut here ]------------
[    2.279012] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/159
[    2.279043] Modules linked in:
[    2.279059] CPU: 0 UID: 0 PID: 159 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.279093] Tainted: [W]=WARN
[    2.279105] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.279130] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.279156] 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
[    2.279216] RSP: 0018:ff8b85e2403a7c10 EFLAGS: 00010286
[    2.279231] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.279259] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff438ea58308d000
[    2.279283] RBP: 0000000000000000 R08: ff438ea581949910 R09: ff438ea584ace030
[    2.279305] R10: ff438ea584998118 R11: fefefefefefefeff R12: 0000000000000000
[    2.279330] R13: 0000000000000010 R14: ff438ea584998000 R15: ff438ea58308d000
[    2.279356] FS:  00000000094d1400(0000) GS:ff438ea603c96000(0000) knlGS:0000000000000000
[    2.279385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.279410] CR2: 00007f5610b4a000 CR3: 00000000031a1005 CR4: 0000000000771ef0
[    2.279437] PKRU: 55555554
[    2.279446] Call Trace:
[    2.279454]  <TASK>
[    2.279466]  rtmsg_ifinfo+0x3c/0xa0
[    2.279480]  __dev_notify_flags+0xb1/0xf0
[    2.279500]  netif_change_flags+0x54/0x70
[    2.279521]  dev_change_flags+0x45/0x80
[    2.279535]  devinet_ioctl+0x607/0x7f0
[    2.279556]  inet_ioctl+0x229/0x240
[    2.279571]  ? __rtnl_unlock+0x35/0x60
[    2.279584]  sock_do_ioctl+0x75/0x140
[    2.279603]  __x64_sys_ioctl+0xa1/0xe0
[    2.279617]  do_syscall_64+0x104/0xfc0
[    2.279631]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.279656] RIP: 0033:0x47cc8d
[    2.279668] 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
[    2.279733] RSP: 002b:00007ffce033e8f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.279758] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.279785] RDX: 00007ffce033e960 RSI: 0000000000008914 RDI: 0000000000000006
[    2.279810] RBP: 00007ffce033e940 R08: 0000000000000005 R09: 00000000000003a0
[    2.279840] R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffce033ee28
[    2.279863] R13: 00007ffce033eea8 R14: 0000000000000002 R15: 0000000000543540
[    2.279889]  </TASK>
[    2.279900] ---[ end trace 0000000000000000 ]---
[   47.248831] ------------[ cut here ]------------
[   47.248907] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/159
[   47.248973] Modules linked in:
[   47.249000] CPU: 0 UID: 0 PID: 159 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.249059] Tainted: [W]=WARN
[   47.249082] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.249125] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.249156] 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
[   47.249264] RSP: 0018:ff8b85e2403a7b58 EFLAGS: 00010286
[   47.249294] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   47.249334] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff438ea58304a800
[   47.249375] RBP: 0000000000000000 R08: ff438ea581949910 R09: ff438ea584ace030
[   47.249416] R10: ff438ea584998118 R11: fefefefefefefeff R12: 0000000000000000
[   47.249457] R13: 0000000000000010 R14: ff438ea584998000 R15: ff438ea58304a800
[   47.249505] FS:  0000000000000000(0000) GS:ff438ea603c96000(0000) knlGS:0000000000000000
[   47.249551] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.249588] CR2: 00007f5610b4a000 CR3: 0000000020c42001 CR4: 0000000000771ef0
[   47.249638] PKRU: 55555554
[   47.249653] Call Trace:
[   47.249668]  <TASK>
[   47.249684]  rtmsg_ifinfo+0x3c/0xa0
[   47.249708]  netif_close_many+0xed/0x190
[   47.249731]  unregister_netdevice_many_notify+0x267/0x9d0
[   47.249760]  ? __queue_work+0x141/0x550
[   47.249790]  unregister_netdevice_queue+0x9e/0xd0
[   47.249819]  __tun_detach+0x591/0x5b0
[   47.249844]  tun_chr_close+0x3f/0xc0
[   47.249866]  __fput+0xe8/0x2c0
[   47.249891]  task_work_run+0x63/0xa0
[   47.249914]  do_exit+0x2c1/0xba0
[   47.249939]  do_group_exit+0x2d/0xc0
[   47.249962]  get_signal+0x82e/0x900
[   47.249988]  arch_do_signal_or_restart+0x77/0x2b0
[   47.250018]  exit_to_user_mode_loop+0x75/0x4a0
[   47.250051]  do_syscall_64+0x439/0xfc0
[   47.250076]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.250108] RIP: 0033:0x4c2d9e
[   47.250134] Code: Unable to access opcode bytes at 0x4c2d74.
[   47.250167] RSP: 002b:00007ffce033e280 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   47.250208] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   47.250247] RDX: 0000000000000014 RSI: 00007ffce033e360 RDI: 0000000000000007
[   47.250297] RBP: 00007ffce033e290 R08: 00007ffce033e320 R09: 000000000000000c
[   47.250339] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000094de080
[   47.250380] R13: 00007ffce033eea8 R14: 00007ffce033e450 R15: 0000000000543540
[   47.250424]  </TASK>
[   47.250439] ---[ end trace 0000000000000000 ]---
[   47.250747] ------------[ cut here ]------------
[   47.250783] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/159
[   47.250833] Modules linked in:
[   47.250857] CPU: 0 UID: 0 PID: 159 Comm: packetdrill Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.250923] Tainted: [W]=WARN
[   47.250944] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.250980] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.251008] 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
[   47.251103] RSP: 0018:ff8b85e2403a7bc8 EFLAGS: 00010286
[   47.251138] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.251178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff438ea58304a800
[   47.251224] RBP: 0000000000000000 R08: ff438ea581949910 R09: ff438ea584ad5830
[   47.251268] R10: ff438ea584998118 R11: fefefefefefefeff R12: 0000000000000000
[   47.251314] R13: 0000000000000011 R14: ff438ea584998000 R15: ff438ea58304a800
[   47.251358] FS:  0000000000000000(0000) GS:ff438ea603c96000(0000) knlGS:0000000000000000
[   47.251398] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.251426] CR2: 00007f5610b4a000 CR3: 0000000020c42001 CR4: 0000000000771ef0
[   47.251469] PKRU: 55555554
[   47.251484] Call Trace:
[   47.251498]  <TASK>
[   47.251513]  unregister_netdevice_many_notify+0x877/0x9d0
[   47.251541]  unregister_netdevice_queue+0x9e/0xd0
[   47.251568]  __tun_detach+0x591/0x5b0
[   47.251593]  tun_chr_close+0x3f/0xc0
[   47.251617]  __fput+0xe8/0x2c0
[   47.251640]  task_work_run+0x63/0xa0
[   47.251662]  do_exit+0x2c1/0xba0
[   47.251686]  do_group_exit+0x2d/0xc0
[   47.251709]  get_signal+0x82e/0x900
[   47.251729]  arch_do_signal_or_restart+0x77/0x2b0
[   47.251758]  exit_to_user_mode_loop+0x75/0x4a0
[   47.251792]  do_syscall_64+0x439/0xfc0
[   47.251815]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   47.251845] RIP: 0033:0x4c2d9e
[   47.251867] Code: Unable to access opcode bytes at 0x4c2d74.
[   47.251901] RSP: 002b:00007ffce033e280 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   47.251949] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[   47.251989] RDX: 0000000000000014 RSI: 00007ffce033e360 RDI: 0000000000000007
[   47.252031] RBP: 00007ffce033e290 R08: 00007ffce033e320 R09: 000000000000000c
[   47.252072] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000094de080
[   47.252114] R13: 00007ffce033eea8 R14: 00007ffce033e450 R15: 0000000000543540
[   47.252161]  </TASK>
[   47.252176] ---[ end trace 0000000000000000 ]---
[   47.257781] ------------[ cut here ]------------
[   47.257815] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: kworker/u16:0/12
[   47.257876] Modules linked in:
[   47.257901] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   47.257953] Tainted: [W]=WARN
[   47.257971] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.257999] Workqueue: netns cleanup_net
[   47.258026] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   47.258056] 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
[   47.258158] RSP: 0018:ff8b85e240067c78 EFLAGS: 00010286
[   47.258182] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.258223] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff438ea58308c600
[   47.258264] RBP: 0000000000000000 R08: ff438ea5832c5dd0 R09: ff438ea582d4c82c
[   47.258305] R10: ff438ea583017118 R11: fefefefefefefeff R12: 0000000000000000
[   47.258351] R13: 0000000000000011 R14: ff438ea583017000 R15: ff438ea58308c600
[   47.258404] FS:  0000000000000000(0000) GS:ff438ea603e16000(0000) knlGS:0000000000000000
[   47.258446] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.258481] CR2: 000055557cb68340 CR3: 0000000002ec7005 CR4: 0000000000771ef0
[   47.258522] PKRU: 55555554
[   47.258537] Call Trace:
[   47.258550]  <TASK>
[   47.258565]  unregister_netdevice_many_notify+0x877/0x9d0
[   47.258598]  default_device_exit_batch+0x318/0x390
[   47.258638]  ops_undo_list+0x10b/0x240
[   47.258668]  cleanup_net+0x1d7/0x2e0
[   47.258692]  process_one_work+0x162/0x360
[   47.258718]  worker_thread+0x16e/0x2d0
[   47.258739]  ? rescuer_thread+0x510/0x510
[   47.258759]  kthread+0xe1/0x120
[   47.258780]  ? kthread_park+0xa0/0xa0
[   47.258803]  ret_from_fork+0x16d/0x250
[   47.258827]  ? kthread_park+0xa0/0xa0
[   47.258848]  ret_from_fork_asm+0x11/0x20
[   47.258872]  </TASK>
[   47.258885] ---[ end trace 0000000000000000 ]---