[ 5.270580] ------------[ cut here ]------------
[ 5.270633] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: ip/402
[ 5.270692] Modules linked in: netconsole netdevsim
[ 5.270728] CPU: 3 UID: 0 PID: 402 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 5.270787] Tainted: [W]=WARN
[ 5.270805] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5.270841] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 5.270865] 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
[ 5.270965] RSP: 0018:ff56fe98c0397cc8 EFLAGS: 00010286
[ 5.270998] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 5.271045] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76032cd900
[ 5.271086] RBP: 0000000000000000 R08: ff355f7602ffe110 R09: ff355f760604e02c
[ 5.271129] R10: ff355f7602acd118 R11: fefefefefefefeff R12: 0000000000000000
[ 5.271171] R13: 0000000000000010 R14: ff355f7602acd000 R15: ff355f76032cd900
[ 5.271218] FS: 00007ff182405840(0000) GS:ff355f76b49d5000(0000) knlGS:0000000000000000
[ 5.271261] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.271300] CR2: 00007ff182611690 CR3: 000000000c082004 CR4: 0000000000771ef0
[ 5.271342] PKRU: 55555554
[ 5.271355] Call Trace:
[ 5.271372]
[ 5.271386] rtmsg_ifinfo+0x3c/0xa0
[ 5.271410] register_netdevice+0x8e1/0xa70
[ 5.271430] register_netdev+0x1e/0x30
[ 5.271451] loopback_net_init+0x57/0xb0
[ 5.271479] ? vsock_sysctl_init_net+0xb6/0x140
[ 5.271510] ops_init+0x68/0x140
[ 5.271533] setup_net+0x85/0x150
[ 5.271555] copy_net_ns+0xf5/0x200
[ 5.271577] create_new_namespaces+0x117/0x2f0
[ 5.271611] unshare_nsproxy_namespaces+0x85/0xb0
[ 5.271638] ksys_unshare+0x346/0x5e0
[ 5.271661] __x64_sys_unshare+0x12/0x20
[ 5.271682] do_syscall_64+0x104/0xfc0
[ 5.271703] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 5.271732] RIP: 0033:0x7ff1826c7bcb
[ 5.271755] 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
[ 5.271862] RSP: 002b:00007ffda0268d58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 5.271902] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007ff1826c7bcb
[ 5.271946] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 5.271985] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 5.272033] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffda026af80
[ 5.272077] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffda026b897
[ 5.272130]
[ 5.272147] ---[ end trace 0000000000000000 ]---
[ 5.272629] ------------[ cut here ]------------
[ 5.272699] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: python3/401
[ 5.272786] Modules linked in: netconsole netdevsim
[ 5.272851] CPU: 2 UID: 0 PID: 401 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 5.272950] Tainted: [W]=WARN
[ 5.273004] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5.273073] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 5.273136] 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
[ 5.273276] RSP: 0018:ff56fe98c030b9d0 EFLAGS: 00010286
[ 5.273340] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 5.273416] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018b5300
[ 5.273491] RBP: 0000000000000000 R08: ff355f76048bb690 R09: ff355f7604b32030
[ 5.273566] R10: ff355f7604af6118 R11: fefefefefefefeff R12: 0000000000000000
[ 5.273642] R13: 0000000000000010 R14: ff355f7604af6000 R15: ff355f76018b5300
[ 5.273721] FS: 00007f2b134b5400(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 5.273797] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.273866] CR2: 00005602865484d8 CR3: 000000000c0fa002 CR4: 0000000000771ef0
[ 5.273950] PKRU: 55555554
[ 5.273998] Call Trace:
[ 5.274047]
[ 5.274095] rtmsg_ifinfo+0x3c/0xa0
[ 5.274151] register_netdevice+0x8e1/0xa70
[ 5.274214] nsim_create+0x319/0x410 [netdevsim]
[ 5.274281] __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[ 5.274347] nsim_drv_probe+0x655/0x750 [netdevsim]
[ 5.274412] really_probe+0xc9/0x290
[ 5.274476] ? driver_probe_device+0xe0/0xe0
[ 5.274539] __driver_probe_device+0x8d/0x160
[ 5.274603] driver_probe_device+0x1f/0xe0
[ 5.274660] __device_attach_driver+0x71/0x100
[ 5.274723] bus_for_each_drv+0x9d/0x100
[ 5.274779] __device_attach+0xb0/0x1b0
[ 5.274836] device_initial_probe+0x4a/0x70
[ 5.274892] bus_probe_device+0x3c/0xb0
[ 5.274953] device_add+0x675/0x8a0
[ 5.275010] new_device_store+0x19b/0x2b0 [netdevsim]
[ 5.275074] kernfs_fop_write_iter+0x151/0x200
[ 5.275140] vfs_write+0x257/0x5c0
[ 5.275203] ksys_write+0x7b/0x110
[ 5.275260] do_syscall_64+0x104/0xfc0
[ 5.275317] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 5.275380] RIP: 0033:0x7f2b1363d08e
[ 5.275436] 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
[ 5.275566] RSP: 002b:00007ffdfe702130 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5.275642] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f2b1363d08e
[ 5.275717] RDX: 0000000000000007 RSI: 00005602864ffc70 RDI: 0000000000000006
[ 5.275793] RBP: 00007ffdfe702140 R08: 0000000000000000 R09: 0000000000000000
[ 5.275869] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f2b134b5390
[ 5.275952] R13: 00005602864ffc70 R14: 0000000000000006 R15: 00007f2b134410d0
[ 5.276030]
[ 5.276078] ---[ end trace 0000000000000000 ]---
[ 5.418024] ------------[ cut here ]------------
[ 5.418118] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/65
[ 5.418245] Modules linked in: netconsole netdevsim
[ 5.418306] CPU: 2 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 5.418419] Tainted: [W]=WARN
[ 5.418481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5.418557] Workqueue: netns cleanup_net
[ 5.418619] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 5.418689] 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
[ 5.418844] RSP: 0018:ff56fe98c023fc78 EFLAGS: 00010286
[ 5.418933] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 5.419023] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff355f76018b5300
[ 5.419111] RBP: 0000000000000000 R08: ff355f7602ffe110 R09: ff355f7604b2002c
[ 5.419208] R10: ff355f7602acd118 R11: fefefefefefefeff R12: 0000000000000000
[ 5.419307] R13: 0000000000000011 R14: ff355f7602acd000 R15: ff355f76018b5300
[ 5.419390] FS: 0000000000000000(0000) GS:ff355f76b4955000(0000) knlGS:0000000000000000
[ 5.419461] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.419542] CR2: 00007fc5bfc7a620 CR3: 0000000024642005 CR4: 0000000000771ef0
[ 5.419620] PKRU: 55555554
[ 5.419689] Call Trace:
[ 5.419737]
[ 5.419805] unregister_netdevice_many_notify+0x595/0xa40
[ 5.419883] default_device_exit_batch+0x328/0x3a0
[ 5.419957] ops_undo_list+0x10b/0x240
[ 5.420027] cleanup_net+0x1d7/0x2e0
[ 5.420099] process_one_work+0x162/0x360
[ 5.420156] worker_thread+0x16e/0x2d0
[ 5.420224] ? rescuer_thread+0x510/0x510
[ 5.420286] kthread+0xe1/0x120
[ 5.420348] ? kthread_park+0xa0/0xa0
[ 5.420412] ret_from_fork+0x16d/0x250
[ 5.420484] ? kthread_park+0xa0/0xa0
[ 5.420541] ret_from_fork_asm+0x11/0x20
[ 5.420605]
[ 5.420657] ---[ end trace 0000000000000000 ]---