[ 229.580935] ------------[ cut here ]------------
[ 229.580975] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: unshare/381
[ 229.581041] Modules linked in:
[ 229.581067] CPU: 3 UID: 0 PID: 381 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.581131] Tainted: [W]=WARN
[ 229.581154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.581190] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.581221] 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
[ 229.581320] RSP: 0018:ff798893806cfcc8 EFLAGS: 00010286
[ 229.581353] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 229.581395] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f700
[ 229.581440] RBP: 0000000000000000 R08: ff3f40af02fef190 R09: ff3f40af074b102c
[ 229.581481] R10: ff3f40af019b4118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.581529] R13: 0000000000000010 R14: ff3f40af019b4000 R15: ff3f40af0188f700
[ 229.581579] FS: 00007f13c344f740(0000) GS:ff3f40af93e16000(0000) knlGS:0000000000000000
[ 229.581625] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.581661] CR2: 00007f13c3611280 CR3: 000000000311f005 CR4: 0000000000771ef0
[ 229.581704] PKRU: 55555554
[ 229.581717] Call Trace:
[ 229.581731]
[ 229.581747] rtmsg_ifinfo+0x3c/0xa0
[ 229.581769] register_netdevice+0x889/0x9f0
[ 229.581794] register_netdev+0x1e/0x30
[ 229.581814] loopback_net_init+0x57/0xb0
[ 229.581841] ? vsock_sysctl_init_net+0xb6/0x140
[ 229.581870] ops_init+0x68/0x140
[ 229.581895] setup_net+0x85/0x150
[ 229.581917] copy_net_ns+0xf5/0x200
[ 229.581939] create_new_namespaces+0x117/0x2f0
[ 229.581969] unshare_nsproxy_namespaces+0x85/0xb0
[ 229.581997] ksys_unshare+0x346/0x5e0
[ 229.582024] __x64_sys_unshare+0x12/0x20
[ 229.582046] do_syscall_64+0x104/0xfc0
[ 229.582065] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.582095] RIP: 0033:0x7f13c354abcb
[ 229.582119] 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
[ 229.582214] RSP: 002b:00007fff316ac7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 229.582254] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f13c354abcb
[ 229.582297] RDX: 0000000000000000 RSI: 00007fff316ac550 RDI: 0000000040000000
[ 229.582338] RBP: 00007fff316acb70 R08: 00007fff316ac740 R09: 0000000000000000
[ 229.582379] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 229.582418] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000564729266b68
[ 229.582459]
[ 229.582473] ---[ end trace 0000000000000000 ]---
[ 229.583089] ------------[ cut here ]------------
[ 229.583129] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/381
[ 229.583182] Modules linked in:
[ 229.583207] CPU: 3 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.583253] Tainted: [W]=WARN
[ 229.583274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.583305] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.583335] 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
[ 229.583435] RSP: 0018:ff798893806cfd68 EFLAGS: 00010286
[ 229.583462] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 229.583498] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f700
[ 229.583544] RBP: 0000000000000000 R08: ff3f40af031822d0 R09: ff3f40af02062030
[ 229.583586] R10: ff3f40af01918118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.583628] R13: 0000000000000010 R14: ff3f40af01918000 R15: ff3f40af0188f700
[ 229.583671] FS: 000000002a095400(0000) GS:ff3f40af93e16000(0000) knlGS:0000000000000000
[ 229.583709] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.583745] CR2: 00007f5d3fa27000 CR3: 00000000048fa006 CR4: 0000000000771ef0
[ 229.583786] PKRU: 55555554
[ 229.583800] Call Trace:
[ 229.583814]
[ 229.583829] rtmsg_ifinfo+0x3c/0xa0
[ 229.583851] register_netdevice+0x889/0x9f0
[ 229.583876] __tun_chr_ioctl+0x83c/0x16c0
[ 229.583902] ? do_sys_openat2+0x9a/0xe0
[ 229.583926] __x64_sys_ioctl+0xa1/0xe0
[ 229.583949] do_syscall_64+0x104/0xfc0
[ 229.583970] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.583998] RIP: 0033:0x47cc8d
[ 229.584021] 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
[ 229.584126] RSP: 002b:00007fff6e829830 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.584170] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 229.584214] RDX: 00007fff6e8298b0 RSI: 00000000400454ca RDI: 0000000000000005
[ 229.584253] RBP: 00007fff6e829880 R08: 0000000000000000 R09: 0000000000000000
[ 229.584294] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6e829d88
[ 229.584336] R13: 00007fff6e829e08 R14: 0000000000000002 R15: 0000000000543540
[ 229.584378]
[ 229.584393] ---[ end trace 0000000000000000 ]---
[ 229.584436] ------------[ cut here ]------------
[ 229.584462] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/381
[ 229.584505] Modules linked in:
[ 229.584530] CPU: 3 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.584594] Tainted: [W]=WARN
[ 229.584616] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.584656] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.584687] 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
[ 229.584786] RSP: 0018:ff798893806cfd60 EFLAGS: 00010286
[ 229.584815] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 229.584856] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f700
[ 229.584895] RBP: 0000000000000002 R08: ff3f40af031822d0 R09: ff3f40af02062030
[ 229.584936] R10: ff3f40af01918118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.584979] R13: 0000000000000010 R14: ff3f40af01918000 R15: ff3f40af0188f700
[ 229.585019] FS: 000000002a095400(0000) GS:ff3f40af93e16000(0000) knlGS:0000000000000000
[ 229.585062] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.585099] CR2: 00007f5d3fa27000 CR3: 00000000048fa006 CR4: 0000000000771ef0
[ 229.585145] PKRU: 55555554
[ 229.585159] Call Trace:
[ 229.585174]
[ 229.585188] rtnetlink_event+0x6e/0xb0
[ 229.585212] notifier_call_chain+0x6d/0x100
[ 229.585234] netdev_update_features+0x56/0x60
[ 229.585263] __tun_chr_ioctl+0xbf1/0x16c0
[ 229.585283] ? file_init_path+0x62/0x120
[ 229.585307] __x64_sys_ioctl+0xa1/0xe0
[ 229.585327] do_syscall_64+0x104/0xfc0
[ 229.585349] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.585378] RIP: 0033:0x47cc8d
[ 229.585397] 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
[ 229.585485] RSP: 002b:00007fff6e829870 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.585532] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 229.585576] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 229.585617] RBP: 00007fff6e8298c0 R08: 0000000000000000 R09: 0000000000000000
[ 229.585659] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6e829d88
[ 229.585699] R13: 00007fff6e829e08 R14: 0000000000000002 R15: 0000000000543540
[ 229.585739]
[ 229.585752] ---[ end trace 0000000000000000 ]---
[ 229.585793] ------------[ cut here ]------------
[ 229.585819] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/381
[ 229.585858] Modules linked in:
[ 229.585878] CPU: 3 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.585938] Tainted: [W]=WARN
[ 229.585958] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.585994] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.586018] 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
[ 229.586115] RSP: 0018:ff798893806cfc10 EFLAGS: 00010286
[ 229.586138] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 229.586182] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188f700
[ 229.586223] RBP: 0000000000000000 R08: ff3f40af031822d0 R09: ff3f40af019b7030
[ 229.586264] R10: ff3f40af01918118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.586307] R13: 0000000000000010 R14: ff3f40af01918000 R15: ff3f40af0188f700
[ 229.586348] FS: 000000002a095400(0000) GS:ff3f40af93e16000(0000) knlGS:0000000000000000
[ 229.586389] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.586427] CR2: 00007f5d3fa27000 CR3: 00000000048fa006 CR4: 0000000000771ef0
[ 229.586471] PKRU: 55555554
[ 229.586487] Call Trace:
[ 229.586500]
[ 229.586515] rtmsg_ifinfo+0x3c/0xa0
[ 229.586536] __dev_notify_flags+0xb1/0xf0
[ 229.586562] netif_change_flags+0x54/0x70
[ 229.586584] dev_change_flags+0x45/0x80
[ 229.586609] devinet_ioctl+0x607/0x7f0
[ 229.586634] inet_ioctl+0x229/0x240
[ 229.586655] ? __rtnl_unlock+0x35/0x60
[ 229.586676] sock_do_ioctl+0x75/0x140
[ 229.586701] __x64_sys_ioctl+0xa1/0xe0
[ 229.586722] do_syscall_64+0x104/0xfc0
[ 229.586745] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.586774] RIP: 0033:0x47cc8d
[ 229.586794] 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
[ 229.586888] RSP: 002b:00007fff6e829850 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.586932] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 229.586972] RDX: 00007fff6e8298c0 RSI: 0000000000008914 RDI: 0000000000000006
[ 229.587013] RBP: 00007fff6e8298a0 R08: 0000000000000000 R09: 0000000000000000
[ 229.587052] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6e829d88
[ 229.587092] R13: 00007fff6e829e08 R14: 0000000000000002 R15: 0000000000543540
[ 229.587134]
[ 229.587148] ---[ end trace 0000000000000000 ]---
[ 274.566744] ------------[ cut here ]------------
[ 274.566810] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/381
[ 274.566870] Modules linked in:
[ 274.566898] CPU: 3 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 274.566957] Tainted: [W]=WARN
[ 274.566977] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.567017] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 274.567047] 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
[ 274.567121] RSP: 0018:ff798893806cfb58 EFLAGS: 00010286
[ 274.567148] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 274.567190] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188fc00
[ 274.567235] RBP: 0000000000000000 R08: ff3f40af031822d0 R09: ff3f40af019b7030
[ 274.567276] R10: ff3f40af01918118 R11: fefefefefefefeff R12: 0000000000000000
[ 274.567317] R13: 0000000000000010 R14: ff3f40af01918000 R15: ff3f40af0188fc00
[ 274.567363] FS: 0000000000000000(0000) GS:ff3f40af93e16000(0000) knlGS:0000000000000000
[ 274.567409] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 274.567442] CR2: 00007f5d3fa27000 CR3: 0000000025242001 CR4: 0000000000771ef0
[ 274.567483] PKRU: 55555554
[ 274.567495] Call Trace:
[ 274.567508]
[ 274.567524] rtmsg_ifinfo+0x3c/0xa0
[ 274.567548] netif_close_many+0xed/0x190
[ 274.567568] unregister_netdevice_many_notify+0x267/0x9d0
[ 274.567598] ? __queue_work+0x141/0x550
[ 274.567621] unregister_netdevice_queue+0x9e/0xd0
[ 274.567656] __tun_detach+0x591/0x5b0
[ 274.567682] tun_chr_close+0x3f/0xc0
[ 274.567710] __fput+0xe8/0x2c0
[ 274.567736] task_work_run+0x63/0xa0
[ 274.567760] do_exit+0x2c1/0xba0
[ 274.567783] ? netlink_recvmsg+0x18d/0x310
[ 274.567802] do_group_exit+0x2d/0xc0
[ 274.567824] get_signal+0x82e/0x900
[ 274.567849] arch_do_signal_or_restart+0x77/0x2b0
[ 274.567881] exit_to_user_mode_loop+0x75/0x4a0
[ 274.567914] do_syscall_64+0x439/0xfc0
[ 274.567935] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 274.567964] RIP: 0033:0x4c2d9e
[ 274.567988] Code: Unable to access opcode bytes at 0x4c2d74.
[ 274.568024] RSP: 002b:00007fff6e8291e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 274.568068] RAX: 0000000000000014 RBX: 00007fff6e829270 RCX: 00000000004c2d9e
[ 274.568102] RDX: 0000000000000000 RSI: 00007fff6e829280 RDI: 0000000000000007
[ 274.568146] RBP: 00007fff6e8291f0 R08: 0000000000000000 R09: 0000000000000000
[ 274.568187] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff6e829264
[ 274.568227] R13: 00007fff6e829e08 R14: 00007fff6e8293b0 R15: 0000000000543540
[ 274.568265]
[ 274.568277] ---[ end trace 0000000000000000 ]---
[ 274.568367] ------------[ cut here ]------------
[ 274.568396] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/381
[ 274.568437] Modules linked in:
[ 274.568460] CPU: 3 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 274.568517] Tainted: [W]=WARN
[ 274.568538] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.568571] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 274.568598] 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
[ 274.568694] RSP: 0018:ff798893806cfbc8 EFLAGS: 00010286
[ 274.568716] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 274.568757] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0188fc00
[ 274.568798] RBP: 0000000000000000 R08: ff3f40af031822d0 R09: ff3f40af030fc830
[ 274.568841] R10: ff3f40af01918118 R11: fefefefefefefeff R12: 0000000000000000
[ 274.568883] R13: 0000000000000011 R14: ff3f40af01918000 R15: ff3f40af0188fc00
[ 274.568926] FS: 0000000000000000(0000) GS:ff3f40af93e16000(0000) knlGS:0000000000000000
[ 274.568968] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 274.568999] CR2: 00007f5d3fa27000 CR3: 0000000025242001 CR4: 0000000000771ef0
[ 274.569041] PKRU: 55555554
[ 274.569055] Call Trace:
[ 274.569070]
[ 274.569084] unregister_netdevice_many_notify+0x877/0x9d0
[ 274.569260] unregister_netdevice_queue+0x9e/0xd0
[ 274.569291] __tun_detach+0x591/0x5b0
[ 274.569316] tun_chr_close+0x3f/0xc0
[ 274.569337] __fput+0xe8/0x2c0
[ 274.569358] task_work_run+0x63/0xa0
[ 274.569380] do_exit+0x2c1/0xba0
[ 274.569405] ? netlink_recvmsg+0x18d/0x310
[ 274.569429] do_group_exit+0x2d/0xc0
[ 274.569454] get_signal+0x82e/0x900
[ 274.569477] arch_do_signal_or_restart+0x77/0x2b0
[ 274.569510] exit_to_user_mode_loop+0x75/0x4a0
[ 274.569539] do_syscall_64+0x439/0xfc0
[ 274.569563] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 274.569594] RIP: 0033:0x4c2d9e
[ 274.569615] Code: Unable to access opcode bytes at 0x4c2d74.
[ 274.569651] RSP: 002b:00007fff6e8291e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 274.569697] RAX: 0000000000000014 RBX: 00007fff6e829270 RCX: 00000000004c2d9e
[ 274.569737] RDX: 0000000000000000 RSI: 00007fff6e829280 RDI: 0000000000000007
[ 274.569778] RBP: 00007fff6e8291f0 R08: 0000000000000000 R09: 0000000000000000
[ 274.569818] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff6e829264
[ 274.569867] R13: 00007fff6e829e08 R14: 00007fff6e8293b0 R15: 0000000000543540
[ 274.569914]
[ 274.569930] ---[ end trace 0000000000000000 ]---
[ 274.584232] ------------[ cut here ]------------
[ 274.584271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: kworker/u16:0/12
[ 274.584332] Modules linked in:
[ 274.584356] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 274.584414] Tainted: [W]=WARN
[ 274.584438] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.584472] Workqueue: netns cleanup_net
[ 274.584496] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 274.584525] 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
[ 274.584615] RSP: 0018:ff79889380067c78 EFLAGS: 00010286
[ 274.584643] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 274.584688] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3f40af0305bb00
[ 274.584727] RBP: 0000000000000000 R08: ff3f40af02fef190 R09: ff3f40af030f902c
[ 274.584768] R10: ff3f40af019b4118 R11: fefefefefefefeff R12: 0000000000000000
[ 274.584807] R13: 0000000000000011 R14: ff3f40af019b4000 R15: ff3f40af0305bb00
[ 274.584849] FS: 0000000000000000(0000) GS:ff3f40af93d16000(0000) knlGS:0000000000000000
[ 274.584890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 274.584926] CR2: 000055b6cb7c92b8 CR3: 000000000489d001 CR4: 0000000000771ef0
[ 274.584968] PKRU: 55555554
[ 274.584979] Call Trace:
[ 274.584994]
[ 274.585008] unregister_netdevice_many_notify+0x877/0x9d0
[ 274.585036] default_device_exit_batch+0x318/0x390
[ 274.585064] ops_undo_list+0x10b/0x240
[ 274.585087] cleanup_net+0x1d7/0x2e0
[ 274.585121] process_one_work+0x162/0x360
[ 274.585143] worker_thread+0x16e/0x2d0
[ 274.585165] ? rescuer_thread+0x510/0x510
[ 274.585188] kthread+0xe1/0x120
[ 274.585210] ? kthread_park+0xa0/0xa0
[ 274.585231] ret_from_fork+0x16d/0x250
[ 274.585256] ? kthread_park+0xa0/0xa0
[ 274.585280] ret_from_fork_asm+0x11/0x20
[ 274.585304]
[ 274.585318] ---[ end trace 0000000000000000 ]---