[ 47.726568] ------------[ cut here ]------------
[ 47.726648] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/203
[ 47.726735] Modules linked in:
[ 47.726793] CPU: 2 UID: 0 PID: 203 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.726885] Tainted: [W]=WARN
[ 47.726939] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.727009] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.727079] 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
[ 47.727218] RSP: 0018:ff79889380437cc8 EFLAGS: 00010286
[ 47.727281] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.727358] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f600
[ 47.727434] RBP: 0000000000000000 R08: ff3f40af018d8850 R09: ff3f40af019b702c
[ 47.727509] R10: ff3f40af04abc118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.727587] R13: 0000000000000010 R14: ff3f40af04abc000 R15: ff3f40af0188f600
[ 47.727669] FS: 00007f6751977740(0000) GS:ff3f40af93d96000(0000) knlGS:0000000000000000
[ 47.727747] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.727816] CR2: 00005616a7a1b008 CR3: 00000000049ce002 CR4: 0000000000771ef0
[ 47.727894] PKRU: 55555554
[ 47.727942] Call Trace:
[ 47.727991]
[ 47.728045] rtmsg_ifinfo+0x3c/0xa0
[ 47.728103] register_netdevice+0x889/0x9f0
[ 47.728168] register_netdev+0x1e/0x30
[ 47.728225] loopback_net_init+0x57/0xb0
[ 47.728284] ? vsock_sysctl_init_net+0xb6/0x140
[ 47.728350] ops_init+0x68/0x140
[ 47.728410] setup_net+0x85/0x150
[ 47.728467] copy_net_ns+0xf5/0x200
[ 47.728528] create_new_namespaces+0x117/0x2f0
[ 47.728594] unshare_nsproxy_namespaces+0x85/0xb0
[ 47.728657] ksys_unshare+0x346/0x5e0
[ 47.728717] __x64_sys_unshare+0x12/0x20
[ 47.728773] do_syscall_64+0x104/0xfc0
[ 47.728832] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.728895] RIP: 0033:0x7f6751a72bcb
[ 47.728952] 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
[ 47.729089] RSP: 002b:00007ffd499b5278 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 47.729172] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6751a72bcb
[ 47.729248] RDX: 0000000000000000 RSI: 00007ffd499b4fe0 RDI: 0000000040000000
[ 47.729324] RBP: 00007ffd499b5600 R08: 00007ffd499b51d0 R09: 0000000000000000
[ 47.729400] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 47.729476] R13: 0000000000000000 R14: 00000000ffffffff R15: 000056169ccfeb68
[ 47.729553]
[ 47.729601] ---[ end trace 0000000000000000 ]---
[ 47.730307] ------------[ cut here ]------------
[ 47.730372] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[ 47.730460] Modules linked in:
[ 47.730519] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.730609] Tainted: [W]=WARN
[ 47.730664] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.730733] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.730796] 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
[ 47.730927] RSP: 0018:ff79889380437d68 EFLAGS: 00010286
[ 47.730989] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.731071] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f600
[ 47.731159] RBP: 0000000000000000 R08: ff3f40af0319c490 R09: ff3f40af019b5030
[ 47.731234] R10: ff3f40af0309c118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.731310] R13: 0000000000000010 R14: ff3f40af0309c000 R15: ff3f40af0188f600
[ 47.731389] FS: 00000000377c7400(0000) GS:ff3f40af93d96000(0000) knlGS:0000000000000000
[ 47.731467] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.731537] CR2: 00007f7b4b054000 CR3: 000000000314e003 CR4: 0000000000771ef0
[ 47.731615] PKRU: 55555554
[ 47.731663] Call Trace:
[ 47.731711]
[ 47.731760] rtmsg_ifinfo+0x3c/0xa0
[ 47.731817] register_netdevice+0x889/0x9f0
[ 47.731873] __tun_chr_ioctl+0x83c/0x16c0
[ 47.731931] ? do_sys_openat2+0x9a/0xe0
[ 47.731990] __x64_sys_ioctl+0xa1/0xe0
[ 47.732054] do_syscall_64+0x104/0xfc0
[ 47.732118] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.732182] RIP: 0033:0x47cc8d
[ 47.732238] 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
[ 47.732368] RSP: 002b:00007ffe76b20a00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 47.732444] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 47.732522] RDX: 00007ffe76b20a80 RSI: 00000000400454ca RDI: 0000000000000005
[ 47.732599] RBP: 00007ffe76b20a50 R08: 0000000000000000 R09: 0000000000000000
[ 47.732674] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe76b20f58
[ 47.732750] R13: 00007ffe76b20fd8 R14: 0000000000000002 R15: 0000000000543540
[ 47.732827]
[ 47.732875] ---[ end trace 0000000000000000 ]---
[ 47.732957] ------------[ cut here ]------------
[ 47.733018] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[ 47.733116] Modules linked in:
[ 47.733172] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.733264] Tainted: [W]=WARN
[ 47.733318] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.733386] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.733450] 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
[ 47.733580] RSP: 0018:ff79889380437d60 EFLAGS: 00010286
[ 47.733643] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 47.733720] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f600
[ 47.733796] RBP: 0000000000000002 R08: ff3f40af0319c490 R09: ff3f40af019b5030
[ 47.733873] R10: ff3f40af0309c118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.733949] R13: 0000000000000010 R14: ff3f40af0309c000 R15: ff3f40af0188f600
[ 47.734033] FS: 00000000377c7400(0000) GS:ff3f40af93d96000(0000) knlGS:0000000000000000
[ 47.734118] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.734186] CR2: 00007f7b4b054000 CR3: 000000000314e003 CR4: 0000000000771ef0
[ 47.734263] PKRU: 55555554
[ 47.734311] Call Trace:
[ 47.734359]
[ 47.734407] rtnetlink_event+0x6e/0xb0
[ 47.734463] notifier_call_chain+0x6d/0x100
[ 47.734522] netdev_update_features+0x56/0x60
[ 47.734586] __tun_chr_ioctl+0xbf1/0x16c0
[ 47.734643] ? file_init_path+0x62/0x120
[ 47.734700] __x64_sys_ioctl+0xa1/0xe0
[ 47.734757] do_syscall_64+0x104/0xfc0
[ 47.734814] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.734877] RIP: 0033:0x47cc8d
[ 47.734932] 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
[ 47.735074] RSP: 002b:00007ffe76b20a40 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 47.735155] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 47.735231] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 47.735307] RBP: 00007ffe76b20a90 R08: 0000000000000005 R09: 0000000000001ff0
[ 47.735384] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffe76b20f58
[ 47.735460] R13: 00007ffe76b20fd8 R14: 0000000000000002 R15: 0000000000543540
[ 47.735539]
[ 47.735587] ---[ end trace 0000000000000000 ]---
[ 47.735670] ------------[ cut here ]------------
[ 47.735731] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[ 47.735816] Modules linked in:
[ 47.735872] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.735965] Tainted: [W]=WARN
[ 47.736027] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.736096] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.736163] 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
[ 47.736295] RSP: 0018:ff79889380437c10 EFLAGS: 00010286
[ 47.736358] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 47.736435] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f600
[ 47.736510] RBP: 0000000000000000 R08: ff3f40af0319c490 R09: ff3f40af074b3030
[ 47.736586] R10: ff3f40af0309c118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.736662] R13: 0000000000000010 R14: ff3f40af0309c000 R15: ff3f40af0188f600
[ 47.736741] FS: 00000000377c7400(0000) GS:ff3f40af93d96000(0000) knlGS:0000000000000000
[ 47.736818] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.736888] CR2: 00007f7b4b054000 CR3: 000000000314e003 CR4: 0000000000771ef0
[ 47.736966] PKRU: 55555554
[ 47.737013] Call Trace:
[ 47.737065]
[ 47.737121] rtmsg_ifinfo+0x3c/0xa0
[ 47.737178] __dev_notify_flags+0xb1/0xf0
[ 47.737235] netif_change_flags+0x54/0x70
[ 47.737293] dev_change_flags+0x45/0x80
[ 47.737349] devinet_ioctl+0x607/0x7f0
[ 47.737408] inet_ioctl+0x229/0x240
[ 47.737466] ? __rtnl_unlock+0x35/0x60
[ 47.737529] sock_do_ioctl+0x75/0x140
[ 47.737587] __x64_sys_ioctl+0xa1/0xe0
[ 47.737644] do_syscall_64+0x104/0xfc0
[ 47.737701] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.737765] RIP: 0033:0x47cc8d
[ 47.737821] 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
[ 47.737952] RSP: 002b:00007ffe76b20a20 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 47.738037] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 47.738120] RDX: 00007ffe76b20a90 RSI: 0000000000008914 RDI: 0000000000000006
[ 47.738196] RBP: 00007ffe76b20a70 R08: 0000000000000005 R09: 0000000000001ff0
[ 47.738272] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffe76b20f58
[ 47.738349] R13: 00007ffe76b20fd8 R14: 0000000000000002 R15: 0000000000543540
[ 47.738425]
[ 47.738473] ---[ end trace 0000000000000000 ]---
[ 92.713121] ------------[ cut here ]------------
[ 92.713231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[ 92.713324] Modules linked in:
[ 92.713386] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 92.713479] Tainted: [W]=WARN
[ 92.713537] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.713610] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 92.713677] 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
[ 92.713812] RSP: 0018:ff79889380437b58 EFLAGS: 00010286
[ 92.713879] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 92.713958] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af01d79100
[ 92.714037] RBP: 0000000000000000 R08: ff3f40af0319c490 R09: ff3f40af074b2030
[ 92.714120] R10: ff3f40af0309c118 R11: fefefefefefefeff R12: 0000000000000000
[ 92.714201] R13: 0000000000000010 R14: ff3f40af0309c000 R15: ff3f40af01d79100
[ 92.714282] FS: 0000000000000000(0000) GS:ff3f40af93d96000(0000) knlGS:0000000000000000
[ 92.714360] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 92.714430] CR2: 00007f7b4b054000 CR3: 0000000025242004 CR4: 0000000000771ef0
[ 92.714508] PKRU: 55555554
[ 92.714556] Call Trace:
[ 92.714606]
[ 92.714655] rtmsg_ifinfo+0x3c/0xa0
[ 92.714712] netif_close_many+0xed/0x190
[ 92.714771] unregister_netdevice_many_notify+0x267/0x9d0
[ 92.714835] ? __queue_work+0x141/0x550
[ 92.714893] unregister_netdevice_queue+0x9e/0xd0
[ 92.714956] __tun_detach+0x591/0x5b0
[ 92.715015] tun_chr_close+0x3f/0xc0
[ 92.715071] __fput+0xe8/0x2c0
[ 92.715136] task_work_run+0x63/0xa0
[ 92.715204] do_exit+0x2c1/0xba0
[ 92.715261] ? netlink_unicast+0x273/0x3a0
[ 92.715321] do_group_exit+0x2d/0xc0
[ 92.715382] get_signal+0x82e/0x900
[ 92.715441] arch_do_signal_or_restart+0x77/0x2b0
[ 92.715509] exit_to_user_mode_loop+0x75/0x4a0
[ 92.715574] do_syscall_64+0x439/0xfc0
[ 92.715633] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 92.715697] RIP: 0033:0x4c2d9e
[ 92.715753] Code: Unable to access opcode bytes at 0x4c2d74.
[ 92.715821] RSP: 002b:00007ffe76b203b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 92.715900] RAX: 0000000000000014 RBX: 0000000000000012 RCX: 00000000004c2d9e
[ 92.715976] RDX: 0000000000000014 RSI: 00007ffe76b20490 RDI: 0000000000000007
[ 92.716052] RBP: 00007ffe76b203c0 R08: 00007ffe76b20450 R09: 000000000000000c
[ 92.716662] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe76b20f58
[ 92.716792] R13: 00007ffe76b20fd8 R14: 00007ffe76b20580 R15: 0000000000543540
[ 92.716921]
[ 92.716991] ---[ end trace 0000000000000000 ]---
[ 92.717776] ------------[ cut here ]------------
[ 92.717839] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/203
[ 92.717925] Modules linked in:
[ 92.717982] CPU: 2 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 92.718077] Tainted: [W]=WARN
[ 92.718144] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.718226] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 92.718291] 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
[ 92.718418] RSP: 0018:ff79889380437bc8 EFLAGS: 00010286
[ 92.718481] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 92.718558] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af01d79100
[ 92.718633] RBP: 0000000000000000 R08: ff3f40af0319c490 R09: ff3f40af032f0030
[ 92.718709] R10: ff3f40af0309c118 R11: fefefefefefefeff R12: 0000000000000000
[ 92.718784] R13: 0000000000000011 R14: ff3f40af0309c000 R15: ff3f40af01d79100
[ 92.718862] FS: 0000000000000000(0000) GS:ff3f40af93d96000(0000) knlGS:0000000000000000
[ 92.718940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 92.719008] CR2: 00007f7b4b054000 CR3: 0000000025242004 CR4: 0000000000771ef0
[ 92.719087] PKRU: 55555554
[ 92.719603] Call Trace:
[ 92.719657]
[ 92.719706] unregister_netdevice_many_notify+0x877/0x9d0
[ 92.719770] unregister_netdevice_queue+0x9e/0xd0
[ 92.719833] __tun_detach+0x591/0x5b0
[ 92.719891] tun_chr_close+0x3f/0xc0
[ 92.719948] __fput+0xe8/0x2c0
[ 92.720006] task_work_run+0x63/0xa0
[ 92.720064] do_exit+0x2c1/0xba0
[ 92.720128] ? netlink_unicast+0x273/0x3a0
[ 92.720192] do_group_exit+0x2d/0xc0
[ 92.720249] get_signal+0x82e/0x900
[ 92.720307] arch_do_signal_or_restart+0x77/0x2b0
[ 92.720372] exit_to_user_mode_loop+0x75/0x4a0
[ 92.720436] do_syscall_64+0x439/0xfc0
[ 92.720493] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 92.720556] RIP: 0033:0x4c2d9e
[ 92.720613] Code: Unable to access opcode bytes at 0x4c2d74.
[ 92.720681] RSP: 002b:00007ffe76b203b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 92.720758] RAX: 0000000000000014 RBX: 0000000000000012 RCX: 00000000004c2d9e
[ 92.720834] RDX: 0000000000000014 RSI: 00007ffe76b20490 RDI: 0000000000000007
[ 92.720909] RBP: 00007ffe76b203c0 R08: 00007ffe76b20450 R09: 000000000000000c
[ 92.720985] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe76b20f58
[ 92.721061] R13: 00007ffe76b20fd8 R14: 00007ffe76b20580 R15: 0000000000543540
[ 92.721141]
[ 92.721196] ---[ end trace 0000000000000000 ]---
[ 92.731244] ------------[ cut here ]------------
[ 92.731278] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:0/12
[ 92.731345] Modules linked in:
[ 92.731366] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 92.731426] Tainted: [W]=WARN
[ 92.731449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.731485] Workqueue: netns cleanup_net
[ 92.731510] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 92.731540] 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
[ 92.731643] RSP: 0018:ff79889380067c78 EFLAGS: 00010286
[ 92.731675] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 92.731720] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f700
[ 92.731760] RBP: 0000000000000000 R08: ff3f40af018d8850 R09: ff3f40af075a582c
[ 92.731799] R10: ff3f40af04abc118 R11: fefefefefefefeff R12: 0000000000000000
[ 92.731840] R13: 0000000000000011 R14: ff3f40af04abc000 R15: ff3f40af0188f700
[ 92.731885] FS: 0000000000000000(0000) GS:ff3f40af93c96000(0000) knlGS:0000000000000000
[ 92.731931] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 92.731966] CR2: 00007fc817c9bf98 CR3: 0000000025242003 CR4: 0000000000771ef0
[ 92.732006] PKRU: 55555554
[ 92.732024] Call Trace:
[ 92.732040]
[ 92.732057] unregister_netdevice_many_notify+0x877/0x9d0
[ 92.732086] default_device_exit_batch+0x318/0x390
[ 92.732120] ops_undo_list+0x10b/0x240
[ 92.732150] cleanup_net+0x1d7/0x2e0
[ 92.732174] process_one_work+0x162/0x360
[ 92.732203] worker_thread+0x16e/0x2d0
[ 92.732227] ? rescuer_thread+0x510/0x510
[ 92.732249] kthread+0xe1/0x120
[ 92.732270] ? kthread_park+0xa0/0xa0
[ 92.732298] ret_from_fork+0x16d/0x250
[ 92.732320] ? kthread_park+0xa0/0xa0
[ 92.732341] ret_from_fork_asm+0x11/0x20
[ 92.732366]
[ 92.732379] ---[ end trace 0000000000000000 ]---