[ 2.305325] ------------[ cut here ]------------
[ 2.305377] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: unshare/160
[ 2.305437] Modules linked in:
[ 2.305465] CPU: 0 UID: 0 PID: 160 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.305524] Tainted: [W]=WARN
[ 2.305547] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.305587] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.305617] 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
[ 2.305720] RSP: 0018:ff77a99b8040fcc8 EFLAGS: 00010286
[ 2.305748] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 2.305807] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc81924400
[ 2.305852] RBP: 0000000000000000 R08: ff2556dc83163090 R09: ff2556dc86a9a02c
[ 2.305895] R10: ff2556dc8302d118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.305936] R13: 0000000000000010 R14: ff2556dc8302d000 R15: ff2556dc81924400
[ 2.305989] FS: 00007f2640d50740(0000) GS:ff2556dd07e96000(0000) knlGS:0000000000000000
[ 2.306034] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.306078] CR2: 0000563887ebc310 CR3: 0000000003359001 CR4: 0000000000771ef0
[ 2.306123] PKRU: 55555554
[ 2.306139] Call Trace:
[ 2.306155]
[ 2.306172] rtmsg_ifinfo+0x3c/0xa0
[ 2.306197] register_netdevice+0x889/0x9f0
[ 2.306217] register_netdev+0x1e/0x30
[ 2.306239] loopback_net_init+0x57/0xb0
[ 2.306266] ? vsock_sysctl_init_net+0xb6/0x140
[ 2.306299] ops_init+0x68/0x140
[ 2.306327] setup_net+0x85/0x150
[ 2.306358] copy_net_ns+0xf5/0x200
[ 2.306383] create_new_namespaces+0x117/0x2f0
[ 2.306415] unshare_nsproxy_namespaces+0x85/0xb0
[ 2.306446] ksys_unshare+0x346/0x5e0
[ 2.306473] __x64_sys_unshare+0x12/0x20
[ 2.306496] do_syscall_64+0x104/0xfc0
[ 2.306519] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.306550] RIP: 0033:0x7f2640e4bbcb
[ 2.306575] 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
[ 2.306671] RSP: 002b:00007ffd910e9c98 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 2.306713] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2640e4bbcb
[ 2.306755] RDX: 0000000000000000 RSI: 00007ffd910e9a00 RDI: 0000000040000000
[ 2.306805] RBP: 00007ffd910ea020 R08: 00007ffd910e9bf0 R09: 0000000000000000
[ 2.306853] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 2.306896] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000563887ebfb68
[ 2.306930]
[ 2.306945] ---[ end trace 0000000000000000 ]---
[ 2.310435] ------------[ cut here ]------------
[ 2.310466] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/160
[ 2.310521] Modules linked in:
[ 2.310547] CPU: 0 UID: 0 PID: 160 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.310609] Tainted: [W]=WARN
[ 2.310632] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.310669] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.310698] 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
[ 2.310790] RSP: 0018:ff77a99b8040fd68 EFLAGS: 00010286
[ 2.310824] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 2.310870] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc81924400
[ 2.310916] RBP: 0000000000000000 R08: ff2556dc82b9f610 R09: ff2556dc86a9f030
[ 2.310957] R10: ff2556dc868e4118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.310999] R13: 0000000000000010 R14: ff2556dc868e4000 R15: ff2556dc81924400
[ 2.311054] FS: 000000001ea5b400(0000) GS:ff2556dd07e96000(0000) knlGS:0000000000000000
[ 2.311109] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.311150] CR2: 00007f6d3558c000 CR3: 0000000003187002 CR4: 0000000000771ef0
[ 2.311201] PKRU: 55555554
[ 2.311215] Call Trace:
[ 2.311227]
[ 2.311241] rtmsg_ifinfo+0x3c/0xa0
[ 2.311263] register_netdevice+0x889/0x9f0
[ 2.311289] __tun_chr_ioctl+0x83c/0x16c0
[ 2.311311] ? do_sys_openat2+0x9a/0xe0
[ 2.311334] __x64_sys_ioctl+0xa1/0xe0
[ 2.311359] do_syscall_64+0x104/0xfc0
[ 2.311382] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.311410] RIP: 0033:0x47cc8d
[ 2.311431] 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
[ 2.311523] RSP: 002b:00007ffe6ffadc40 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 2.311572] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 2.311619] RDX: 00007ffe6ffadcc0 RSI: 00000000400454ca RDI: 0000000000000005
[ 2.311663] RBP: 00007ffe6ffadc90 R08: 0000000000000000 R09: 0000000000000000
[ 2.311702] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe6ffae198
[ 2.311746] R13: 00007ffe6ffae218 R14: 0000000000000002 R15: 0000000000543540
[ 2.311791]
[ 2.311807] ---[ end trace 0000000000000000 ]---
[ 2.311847] ------------[ cut here ]------------
[ 2.311876] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/160
[ 2.311926] Modules linked in:
[ 2.311948] CPU: 0 UID: 0 PID: 160 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.312008] Tainted: [W]=WARN
[ 2.312031] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.312071] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.312097] 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
[ 2.312206] RSP: 0018:ff77a99b8040fd60 EFLAGS: 00010286
[ 2.312231] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 2.312275] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc81924400
[ 2.312324] RBP: 0000000000000002 R08: ff2556dc82b9f610 R09: ff2556dc86a9f030
[ 2.312368] R10: ff2556dc868e4118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.312418] R13: 0000000000000010 R14: ff2556dc868e4000 R15: ff2556dc81924400
[ 2.312460] FS: 000000001ea5b400(0000) GS:ff2556dd07e96000(0000) knlGS:0000000000000000
[ 2.312502] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.312540] CR2: 00007f6d3558c000 CR3: 0000000003187002 CR4: 0000000000771ef0
[ 2.312576] PKRU: 55555554
[ 2.312591] Call Trace:
[ 2.312604]
[ 2.312620] rtnetlink_event+0x6e/0xb0
[ 2.312642] notifier_call_chain+0x6d/0x100
[ 2.312670] netdev_update_features+0x56/0x60
[ 2.312701] __tun_chr_ioctl+0xbf1/0x16c0
[ 2.312719] ? file_init_path+0x62/0x120
[ 2.312744] __x64_sys_ioctl+0xa1/0xe0
[ 2.312766] do_syscall_64+0x104/0xfc0
[ 2.312786] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.312817] RIP: 0033:0x47cc8d
[ 2.312840] 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
[ 2.312934] RSP: 002b:00007ffe6ffadc80 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 2.312974] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 2.313015] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 2.313065] RBP: 00007ffe6ffadcd0 R08: 0000000000000000 R09: 0000000000000000
[ 2.313103] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe6ffae198
[ 2.313150] R13: 00007ffe6ffae218 R14: 0000000000000002 R15: 0000000000543540
[ 2.313186]
[ 2.313200] ---[ end trace 0000000000000000 ]---
[ 2.313243] ------------[ cut here ]------------
[ 2.313271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/160
[ 2.313322] Modules linked in:
[ 2.313346] CPU: 0 UID: 0 PID: 160 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.313409] Tainted: [W]=WARN
[ 2.313433] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.313471] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.313500] 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
[ 2.313602] RSP: 0018:ff77a99b8040fc10 EFLAGS: 00010286
[ 2.313636] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 2.313684] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc81924400
[ 2.313730] RBP: 0000000000000000 R08: ff2556dc82b9f610 R09: ff2556dc86a9c030
[ 2.313775] R10: ff2556dc868e4118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.313828] R13: 0000000000000010 R14: ff2556dc868e4000 R15: ff2556dc81924400
[ 2.313870] FS: 000000001ea5b400(0000) GS:ff2556dd07e96000(0000) knlGS:0000000000000000
[ 2.313913] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.313948] CR2: 00007f6d3558c000 CR3: 0000000003187002 CR4: 0000000000771ef0
[ 2.313992] PKRU: 55555554
[ 2.314008] Call Trace:
[ 2.314023]
[ 2.314040] rtmsg_ifinfo+0x3c/0xa0
[ 2.314063] __dev_notify_flags+0xb1/0xf0
[ 2.314089] netif_change_flags+0x54/0x70
[ 2.314110] dev_change_flags+0x45/0x80
[ 2.314132] devinet_ioctl+0x607/0x7f0
[ 2.314151] inet_ioctl+0x229/0x240
[ 2.314173] ? __rtnl_unlock+0x35/0x60
[ 2.314195] sock_do_ioctl+0x75/0x140
[ 2.314217] __x64_sys_ioctl+0xa1/0xe0
[ 2.314238] do_syscall_64+0x104/0xfc0
[ 2.314261] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.314293] RIP: 0033:0x47cc8d
[ 2.314316] 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
[ 2.314409] RSP: 002b:00007ffe6ffadc60 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 2.314453] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 2.314495] RDX: 00007ffe6ffadcd0 RSI: 0000000000008914 RDI: 0000000000000006
[ 2.314536] RBP: 00007ffe6ffadcb0 R08: 0000000000000000 R09: 0000000000000000
[ 2.314580] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe6ffae198
[ 2.314626] R13: 00007ffe6ffae218 R14: 0000000000000002 R15: 0000000000543540
[ 2.314671]
[ 2.314686] ---[ end trace 0000000000000000 ]---
[ 47.288994] ------------[ cut here ]------------
[ 47.289084] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/160
[ 47.289146] Modules linked in:
[ 47.289174] CPU: 0 UID: 0 PID: 160 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.289237] Tainted: [W]=WARN
[ 47.289259] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.289299] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.289331] 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
[ 47.289431] RSP: 0018:ff77a99b8040fb58 EFLAGS: 00010286
[ 47.289465] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 47.289516] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818e6200
[ 47.289558] RBP: 0000000000000000 R08: ff2556dc82b9f610 R09: ff2556dc86a9c030
[ 47.289604] R10: ff2556dc868e4118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.289645] R13: 0000000000000010 R14: ff2556dc868e4000 R15: ff2556dc818e6200
[ 47.289690] FS: 0000000000000000(0000) GS:ff2556dd07e96000(0000) knlGS:0000000000000000
[ 47.289734] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.289770] CR2: 00007f6d3558c000 CR3: 0000000004a42005 CR4: 0000000000771ef0
[ 47.289817] PKRU: 55555554
[ 47.289834] Call Trace:
[ 47.289849]
[ 47.289866] rtmsg_ifinfo+0x3c/0xa0
[ 47.289889] netif_close_many+0xed/0x190
[ 47.289915] unregister_netdevice_many_notify+0x267/0x9d0
[ 47.289940] ? __queue_work+0x141/0x550
[ 47.289967] unregister_netdevice_queue+0x9e/0xd0
[ 47.289994] __tun_detach+0x591/0x5b0
[ 47.290021] tun_chr_close+0x3f/0xc0
[ 47.290041] __fput+0xe8/0x2c0
[ 47.290066] task_work_run+0x63/0xa0
[ 47.290089] do_exit+0x2c1/0xba0
[ 47.290110] do_group_exit+0x2d/0xc0
[ 47.290133] ? __sys_sendto+0x194/0x220
[ 47.290155] get_signal+0x82e/0x900
[ 47.290180] arch_do_signal_or_restart+0x77/0x2b0
[ 47.290215] exit_to_user_mode_loop+0x75/0x4a0
[ 47.290250] do_syscall_64+0x439/0xfc0
[ 47.290275] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.290308] RIP: 0033:0x4c2d9e
[ 47.290329] Code: Unable to access opcode bytes at 0x4c2d74.
[ 47.290364] RSP: 002b:00007ffe6ffad5f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 47.290405] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[ 47.290451] RDX: 0000000000000014 RSI: 00007ffe6ffad6d0 RDI: 0000000000000007
[ 47.290493] RBP: 00007ffe6ffad600 R08: 00007ffe6ffad690 R09: 000000000000000c
[ 47.290536] R10: 0000000000000000 R11: 0000000000000202 R12: 000000001ea65270
[ 47.290578] R13: 00007ffe6ffae218 R14: 00007ffe6ffad7c0 R15: 0000000000543540
[ 47.290621]
[ 47.290634] ---[ end trace 0000000000000000 ]---
[ 47.290727] ------------[ cut here ]------------
[ 47.290762] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/160
[ 47.290975] Modules linked in:
[ 47.291000] CPU: 0 UID: 0 PID: 160 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.291056] Tainted: [W]=WARN
[ 47.291081] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.291119] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.291145] 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
[ 47.291250] RSP: 0018:ff77a99b8040fbc8 EFLAGS: 00010286
[ 47.291280] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.291322] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818e6200
[ 47.291369] RBP: 0000000000000000 R08: ff2556dc82b9f610 R09: ff2556dc86aa0830
[ 47.291426] R10: ff2556dc868e4118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.291467] R13: 0000000000000011 R14: ff2556dc868e4000 R15: ff2556dc818e6200
[ 47.291513] FS: 0000000000000000(0000) GS:ff2556dd07e96000(0000) knlGS:0000000000000000
[ 47.291554] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.291587] CR2: 00007f6d3558c000 CR3: 0000000004a42005 CR4: 0000000000771ef0
[ 47.291639] PKRU: 55555554
[ 47.291655] Call Trace:
[ 47.291669]
[ 47.291683] unregister_netdevice_many_notify+0x877/0x9d0
[ 47.291709] unregister_netdevice_queue+0x9e/0xd0
[ 47.291737] __tun_detach+0x591/0x5b0
[ 47.291759] tun_chr_close+0x3f/0xc0
[ 47.291780] __fput+0xe8/0x2c0
[ 47.291805] task_work_run+0x63/0xa0
[ 47.291829] do_exit+0x2c1/0xba0
[ 47.291853] do_group_exit+0x2d/0xc0
[ 47.291875] ? __sys_sendto+0x194/0x220
[ 47.291898] get_signal+0x82e/0x900
[ 47.291923] arch_do_signal_or_restart+0x77/0x2b0
[ 47.291955] exit_to_user_mode_loop+0x75/0x4a0
[ 47.291984] do_syscall_64+0x439/0xfc0
[ 47.292007] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.292033] RIP: 0033:0x4c2d9e
[ 47.292057] Code: Unable to access opcode bytes at 0x4c2d74.
[ 47.292091] RSP: 002b:00007ffe6ffad5f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 47.292133] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[ 47.292177] RDX: 0000000000000014 RSI: 00007ffe6ffad6d0 RDI: 0000000000000007
[ 47.292225] RBP: 00007ffe6ffad600 R08: 00007ffe6ffad690 R09: 000000000000000c
[ 47.292270] R10: 0000000000000000 R11: 0000000000000202 R12: 000000001ea65270
[ 47.292315] R13: 00007ffe6ffae218 R14: 00007ffe6ffad7c0 R15: 0000000000543540
[ 47.292358]
[ 47.292374] ---[ end trace 0000000000000000 ]---
[ 47.306912] ------------[ cut here ]------------
[ 47.306972] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: kworker/u16:1/64
[ 47.307034] Modules linked in:
[ 47.307058] CPU: 1 UID: 0 PID: 64 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.307117] Tainted: [W]=WARN
[ 47.307141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.307177] Workqueue: netns cleanup_net
[ 47.307209] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.307239] 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
[ 47.307330] RSP: 0018:ff77a99b80237c78 EFLAGS: 00010286
[ 47.307362] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.307404] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818d4b00
[ 47.307447] RBP: 0000000000000000 R08: ff2556dc83163090 R09: ff2556dc82ebb82c
[ 47.307520] R10: ff2556dc8302d118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.307559] R13: 0000000000000011 R14: ff2556dc8302d000 R15: ff2556dc818d4b00
[ 47.307606] FS: 0000000000000000(0000) GS:ff2556dd07f16000(0000) knlGS:0000000000000000
[ 47.307658] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.307686] CR2: 00007f8f1f2ac680 CR3: 0000000004a42001 CR4: 0000000000771ef0
[ 47.307732] PKRU: 55555554
[ 47.307747] Call Trace:
[ 47.307762]
[ 47.307775] unregister_netdevice_many_notify+0x877/0x9d0
[ 47.307810] default_device_exit_batch+0x318/0x390
[ 47.307838] ops_undo_list+0x10b/0x240
[ 47.307863] cleanup_net+0x1d7/0x2e0
[ 47.307886] process_one_work+0x162/0x360
[ 47.307911] worker_thread+0x16e/0x2d0
[ 47.307933] ? rescuer_thread+0x510/0x510
[ 47.307955] kthread+0xe1/0x120
[ 47.307978] ? kthread_park+0xa0/0xa0
[ 47.308001] ret_from_fork+0x16d/0x250
[ 47.308023] ? kthread_park+0xa0/0xa0
[ 47.308047] ret_from_fork_asm+0x11/0x20
[ 47.308069]
[ 47.308081] ---[ end trace 0000000000000000 ]---