[ 5.957995] ------------[ cut here ]------------
[ 5.958038] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: ip/460
[ 5.958092] Modules linked in: netconsole netdevsim
[ 5.958127] CPU: 3 UID: 0 PID: 460 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 5.958182] Tainted: [W]=WARN
[ 5.958207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5.958242] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 5.958269] Code: 80 00 00 00 e8 09 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 a5 fb ff b9 a6 ff ff
[ 5.958365] RSP: 0018:ff56fe98c042fcc8 EFLAGS: 00010286
[ 5.958392] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 5.958435] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032cd700
[ 5.958478] RBP: 0000000000000000 R08: ff355f760496e690 R09: ff355f760c14302c
[ 5.958518] R10: ff355f7602acd118 R11: fefefefefefefeff R12: 0000000000000000
[ 5.958562] R13: 0000000000000010 R14: ff355f7602acd000 R15: ff355f76032cd700
[ 5.958605] FS: 00007f8073390840(0000) GS:ff355f76b49d5000(0000) knlGS:0000000000000000
[ 5.958647] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.958684] CR2: 00007f8073597430 CR3: 00000000030b2002 CR4: 0000000000771ef0
[ 5.958724] PKRU: 55555554
[ 5.958739] Call Trace:
[ 5.958756]
[ 5.958773] rtmsg_ifinfo+0x3c/0xa0
[ 5.958798] register_netdevice+0x8e1/0xa70
[ 5.958825] register_netdev+0x1e/0x30
[ 5.958845] loopback_net_init+0x57/0xb0
[ 5.958866] ? vsock_sysctl_init_net+0xb6/0x140
[ 5.958894] ops_init+0x68/0x140
[ 5.958918] setup_net+0x85/0x150
[ 5.958944] copy_net_ns+0xf5/0x200
[ 5.958964] create_new_namespaces+0x117/0x2f0
[ 5.958996] unshare_nsproxy_namespaces+0x85/0xb0
[ 5.959026] ksys_unshare+0x346/0x5e0
[ 5.959047] __x64_sys_unshare+0x12/0x20
[ 5.959068] do_syscall_64+0x104/0xfc0
[ 5.959095] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 5.959124] RIP: 0033:0x7f8073652bcb
[ 5.959147] 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
[ 5.959247] RSP: 002b:00007ffc90b382d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[ 5.959289] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f8073652bcb
[ 5.959328] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 5.959373] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 5.959414] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc90b3a500
[ 5.959459] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc90b3b8a1
[ 5.959499]
[ 5.959514] ---[ end trace 0000000000000000 ]---
[ 5.960000] ------------[ cut here ]------------
[ 5.960033] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: python3/459
[ 5.960087] Modules linked in: netconsole netdevsim
[ 5.960118] CPU: 0 UID: 0 PID: 459 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 5.960173] Tainted: [W]=WARN
[ 5.960200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5.960238] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 5.960266] Code: 80 00 00 00 e8 09 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 a5 fb ff b9 a6 ff ff
[ 5.960365] RSP: 0018:ff56fe98c04679d0 EFLAGS: 00010286
[ 5.960391] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 5.960435] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018b5200
[ 5.960475] RBP: 0000000000000000 R08: ff355f760496a610 R09: ff355f7602eae030
[ 5.960520] R10: ff355f7604af4118 R11: fefefefefefefeff R12: 0000000000000000
[ 5.960563] R13: 0000000000000010 R14: ff355f7604af4000 R15: ff355f76018b5200
[ 5.960610] FS: 00007f4097ff8400(0000) GS:ff355f76b4855000(0000) knlGS:0000000000000000
[ 5.960652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.960688] CR2: 000055e448a31948 CR3: 0000000004bb8001 CR4: 0000000000771ef0
[ 5.960733] PKRU: 55555554
[ 5.960746] Call Trace:
[ 5.960763]
[ 5.960777] rtmsg_ifinfo+0x3c/0xa0
[ 5.960799] register_netdevice+0x8e1/0xa70
[ 5.960821] nsim_create+0x319/0x410 [netdevsim]
[ 5.960852] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 5.960883] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 5.960912] really_probe+0xc9/0x290
[ 5.960940] ? driver_probe_device+0xe0/0xe0
[ 5.960970] __driver_probe_device+0x8d/0x160
[ 5.960998] driver_probe_device+0x1f/0xe0
[ 5.961020] __device_attach_driver+0x71/0x100
[ 5.961048] bus_for_each_drv+0x9d/0x100
[ 5.961070] __device_attach+0xb0/0x1b0
[ 5.961092] device_initial_probe+0x4a/0x70
[ 5.961115] bus_probe_device+0x3c/0xb0
[ 5.961138] device_add+0x675/0x8a0
[ 5.961159] new_device_store+0x19b/0x2b0 [netdevsim]
[ 5.961192] kernfs_fop_write_iter+0x151/0x200
[ 5.961221] vfs_write+0x257/0x5c0
[ 5.961244] ksys_write+0x7b/0x110
[ 5.961266] do_syscall_64+0x104/0xfc0
[ 5.961289] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 5.961320] RIP: 0033:0x7f409818008e
[ 5.961341] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 5.961434] RSP: 002b:00007ffe69098e20 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5.961474] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f409818008e
[ 5.961515] RDX: 0000000000000009 RSI: 000055e4489e90e0 RDI: 0000000000000006
[ 5.961557] RBP: 00007ffe69098e30 R08: 0000000000000000 R09: 0000000000000000
[ 5.961597] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4097ff8390
[ 5.961638] R13: 000055e4489e90e0 R14: 0000000000000006 R15: 00007f4097f850d0
[ 5.961679]
[ 5.961694] ---[ end trace 0000000000000000 ]---
[ 6.123673] ------------[ cut here ]------------
[ 6.123774] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 6.123871] Modules linked in: netconsole netdevsim
[ 6.123942] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 6.124030] Tainted: [W]=WARN
[ 6.124084] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6.124151] Workqueue: netns cleanup_net
[ 6.124215] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 6.124277] Code: 80 00 00 00 e8 09 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 a5 fb ff b9 a6 ff ff
[ 6.124405] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 6.124467] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 6.124540] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f7601890c00
[ 6.124615] RBP: 0000000000000000 R08: ff355f760496e690 R09: ff355f760328182c
[ 6.124689] R10: ff355f7602acd118 R11: fefefefefefefeff R12: 0000000000000000
[ 6.124763] R13: 0000000000000011 R14: ff355f7602acd000 R15: ff355f7601890c00
[ 6.124840] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 6.124916] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.124992] CR2: 00007f8761338574 CR3: 000000000c0a2001 CR4: 0000000000771ef0
[ 6.125068] PKRU: 55555554
[ 6.125115] Call Trace:
[ 6.125162]
[ 6.125215] unregister_netdevice_many_notify+0x595/0xa40
[ 6.125279] default_device_exit_batch+0x328/0x3a0
[ 6.125341] ops_undo_list+0x10b/0x240
[ 6.125398] cleanup_net+0x1d7/0x2e0
[ 6.125453] process_one_work+0x162/0x360
[ 6.125511] worker_thread+0x16e/0x2d0
[ 6.125566] ? rescuer_thread+0x510/0x510
[ 6.125622] kthread+0xe1/0x120
[ 6.125678] ? kthread_park+0xa0/0xa0
[ 6.125740] ret_from_fork+0x16d/0x250
[ 6.125797] ? kthread_park+0xa0/0xa0
[ 6.125852] ret_from_fork_asm+0x11/0x20
[ 6.125909]
[ 6.125960] ---[ end trace 0000000000000000 ]---