[ 184.137526] ------------[ cut here ]------------
[ 184.137617] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/337
[ 184.137707] Modules linked in:
[ 184.137764] CPU: 2 UID: 0 PID: 337 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 184.137856] Tainted: [W]=WARN
[ 184.137911] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.137981] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 184.138055] 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
[ 184.138187] RSP: 0018:ff71f0c380607cc8 EFLAGS: 00010286
[ 184.138251] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 184.138328] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023400
[ 184.138405] RBP: 0000000000000000 R08: ff2323108327c990 R09: ff2323108206202c
[ 184.138481] R10: ff23231082dfe118 R11: fefefefefefefeff R12: 0000000000000000
[ 184.138559] R13: 0000000000000010 R14: ff23231082dfe000 R15: ff23231083023400
[ 184.138645] FS: 00007f69f37cb740(0000) GS:ff23231129796000(0000) knlGS:0000000000000000
[ 184.138724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 184.138795] CR2: 0000563ba9465008 CR3: 00000000033ad005 CR4: 0000000000771ef0
[ 184.138873] PKRU: 55555554
[ 184.138922] Call Trace:
[ 184.138971]
[ 184.139037] rtmsg_ifinfo+0x3c/0xa0
[ 184.139095] register_netdevice+0x889/0x9f0
[ 184.139153] register_netdev+0x1e/0x30
[ 184.139210] loopback_net_init+0x57/0xb0
[ 184.139270] ? vsock_sysctl_init_net+0xb6/0x140
[ 184.139335] ops_init+0x68/0x140
[ 184.139398] setup_net+0x85/0x150
[ 184.139456] copy_net_ns+0xf5/0x200
[ 184.139514] create_new_namespaces+0x117/0x2f0
[ 184.139585] unshare_nsproxy_namespaces+0x85/0xb0
[ 184.139650] ksys_unshare+0x346/0x5e0
[ 184.139710] __x64_sys_unshare+0x12/0x20
[ 184.139767] do_syscall_64+0x104/0xfc0
[ 184.139826] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 184.139891] RIP: 0033:0x7f69f38c6bcb
[ 184.139948] 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
[ 184.140084] RSP: 002b:00007fff647aef58 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 184.140162] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f69f38c6bcb
[ 184.140241] RDX: 0000000000000000 RSI: 00007fff647aecc0 RDI: 0000000040000000
[ 184.140318] RBP: 00007fff647af2e0 R08: 00007fff647aeeb0 R09: 0000000000000000
[ 184.140397] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 184.140474] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000563ba912fb68
[ 184.140551]
[ 184.140606] ---[ end trace 0000000000000000 ]---
[ 184.141314] ------------[ cut here ]------------
[ 184.141377] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/337
[ 184.141465] Modules linked in:
[ 184.141522] CPU: 2 UID: 0 PID: 337 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 184.141618] Tainted: [W]=WARN
[ 184.141673] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.141743] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 184.141807] 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
[ 184.141938] RSP: 0018:ff71f0c380607d68 EFLAGS: 00010286
[ 184.142009] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 184.142085] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023400
[ 184.142161] RBP: 0000000000000000 R08: ff232310832683d0 R09: ff232310819ba030
[ 184.142240] R10: ff232310832dc118 R11: fefefefefefefeff R12: 0000000000000000
[ 184.142317] R13: 0000000000000010 R14: ff232310832dc000 R15: ff23231083023400
[ 184.142397] FS: 00000000077d1400(0000) GS:ff23231129796000(0000) knlGS:0000000000000000
[ 184.142476] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 184.142546] CR2: 00007f3023db0000 CR3: 000000000190b006 CR4: 0000000000771ef0
[ 184.142628] PKRU: 55555554
[ 184.142677] Call Trace:
[ 184.142726]
[ 184.142775] rtmsg_ifinfo+0x3c/0xa0
[ 184.142832] register_netdevice+0x889/0x9f0
[ 184.142889] __tun_chr_ioctl+0x83c/0x16c0
[ 184.142949] ? do_sys_openat2+0x9a/0xe0
[ 184.143014] __x64_sys_ioctl+0xa1/0xe0
[ 184.143074] do_syscall_64+0x104/0xfc0
[ 184.143131] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 184.143195] RIP: 0033:0x47cc8d
[ 184.143251] 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
[ 184.143386] RSP: 002b:00007fffa46a4270 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 184.143464] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 184.143540] RDX: 00007fffa46a42f0 RSI: 00000000400454ca RDI: 0000000000000005
[ 184.143624] RBP: 00007fffa46a42c0 R08: 0000000000000000 R09: 0000000000000000
[ 184.143701] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa46a47c8
[ 184.143777] R13: 00007fffa46a4848 R14: 0000000000000002 R15: 0000000000543540
[ 184.143854]
[ 184.143902] ---[ end trace 0000000000000000 ]---
[ 184.143982] ------------[ cut here ]------------
[ 184.144058] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/337
[ 184.144144] Modules linked in:
[ 184.144201] CPU: 2 UID: 0 PID: 337 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 184.144292] Tainted: [W]=WARN
[ 184.144347] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.144417] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 184.144481] 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
[ 184.144618] RSP: 0018:ff71f0c380607d60 EFLAGS: 00010286
[ 184.144680] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 184.144757] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023400
[ 184.144834] RBP: 0000000000000002 R08: ff232310832683d0 R09: ff232310819ba030
[ 184.144909] R10: ff232310832dc118 R11: fefefefefefefeff R12: 0000000000000000
[ 184.144986] R13: 0000000000000010 R14: ff232310832dc000 R15: ff23231083023400
[ 184.145072] FS: 00000000077d1400(0000) GS:ff23231129796000(0000) knlGS:0000000000000000
[ 184.145150] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 184.145221] CR2: 00007f3023db0000 CR3: 000000000190b006 CR4: 0000000000771ef0
[ 184.145299] PKRU: 55555554
[ 184.145348] Call Trace:
[ 184.145397]
[ 184.145446] rtnetlink_event+0x6e/0xb0
[ 184.145502] notifier_call_chain+0x6d/0x100
[ 184.145561] netdev_update_features+0x56/0x60
[ 184.145631] __tun_chr_ioctl+0xbf1/0x16c0
[ 184.145688] ? file_init_path+0x62/0x120
[ 184.145747] __x64_sys_ioctl+0xa1/0xe0
[ 184.145803] do_syscall_64+0x104/0xfc0
[ 184.145861] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 184.145924] RIP: 0033:0x47cc8d
[ 184.145980] 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
[ 184.146119] RSP: 002b:00007fffa46a42b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 184.146196] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 184.146272] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 184.146348] RBP: 00007fffa46a4300 R08: 0000000000000000 R09: 0000000000000000
[ 184.146424] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa46a47c8
[ 184.146501] R13: 00007fffa46a4848 R14: 0000000000000002 R15: 0000000000543540
[ 184.146584]
[ 184.146632] ---[ end trace 0000000000000000 ]---
[ 184.146715] ------------[ cut here ]------------
[ 184.146778] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/337
[ 184.146863] Modules linked in:
[ 184.146919] CPU: 2 UID: 0 PID: 337 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 184.147018] Tainted: [W]=WARN
[ 184.147074] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.147143] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 184.147206] 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
[ 184.147340] RSP: 0018:ff71f0c380607c10 EFLAGS: 00010286
[ 184.147403] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 184.147480] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023400
[ 184.147556] RBP: 0000000000000000 R08: ff232310832683d0 R09: ff23231086ced030
[ 184.147639] R10: ff232310832dc118 R11: fefefefefefefeff R12: 0000000000000000
[ 184.147715] R13: 0000000000000010 R14: ff232310832dc000 R15: ff23231083023400
[ 184.147795] FS: 00000000077d1400(0000) GS:ff23231129796000(0000) knlGS:0000000000000000
[ 184.147874] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 184.147942] CR2: 00007f3023db0000 CR3: 000000000190b006 CR4: 0000000000771ef0
[ 184.148027] PKRU: 55555554
[ 184.148075] Call Trace:
[ 184.148123]
[ 184.148172] rtmsg_ifinfo+0x3c/0xa0
[ 184.148230] __dev_notify_flags+0xb1/0xf0
[ 184.148289] netif_change_flags+0x54/0x70
[ 184.148346] dev_change_flags+0x45/0x80
[ 184.148402] devinet_ioctl+0x607/0x7f0
[ 184.148462] inet_ioctl+0x229/0x240
[ 184.148519] ? __rtnl_unlock+0x35/0x60
[ 184.148576] sock_do_ioctl+0x75/0x140
[ 184.148642] __x64_sys_ioctl+0xa1/0xe0
[ 184.148699] do_syscall_64+0x104/0xfc0
[ 184.148756] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 184.148820] RIP: 0033:0x47cc8d
[ 184.148876] 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
[ 184.149015] RSP: 002b:00007fffa46a4290 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 184.149093] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 184.149169] RDX: 00007fffa46a4300 RSI: 0000000000008914 RDI: 0000000000000006
[ 184.149249] RBP: 00007fffa46a42e0 R08: 0000000000000000 R09: 0000000000000000
[ 184.149325] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa46a47c8
[ 184.149401] R13: 00007fffa46a4848 R14: 0000000000000002 R15: 0000000000543540
[ 184.149478]
[ 184.149525] ---[ end trace 0000000000000000 ]---
[ 229.124226] ------------[ cut here ]------------
[ 229.124353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/337
[ 229.124497] Modules linked in:
[ 229.124558] CPU: 2 UID: 0 PID: 337 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.124653] Tainted: [W]=WARN
[ 229.124710] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.124785] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.124849] 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
[ 229.124981] RSP: 0018:ff71f0c380607b58 EFLAGS: 00010286
[ 229.125243] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 229.125326] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e300
[ 229.125405] RBP: 0000000000000000 R08: ff232310832683d0 R09: ff23231086ced030
[ 229.125482] R10: ff232310832dc118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.125558] R13: 0000000000000010 R14: ff232310832dc000 R15: ff2323108188e300
[ 229.125639] FS: 0000000000000000(0000) GS:ff23231129796000(0000) knlGS:0000000000000000
[ 229.125718] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.125795] CR2: 00007f3023db0000 CR3: 0000000020c42001 CR4: 0000000000771ef0
[ 229.125874] PKRU: 55555554
[ 229.125925] Call Trace:
[ 229.125976]
[ 229.126031] rtmsg_ifinfo+0x3c/0xa0
[ 229.126091] netif_close_many+0xed/0x190
[ 229.126149] unregister_netdevice_many_notify+0x267/0x9d0
[ 229.126213] ? __queue_work+0x141/0x550
[ 229.126272] unregister_netdevice_queue+0x9e/0xd0
[ 229.126336] __tun_detach+0x591/0x5b0
[ 229.126395] tun_chr_close+0x3f/0xc0
[ 229.126453] __fput+0xe8/0x2c0
[ 229.126512] task_work_run+0x63/0xa0
[ 229.126571] do_exit+0x2c1/0xba0
[ 229.126629] do_group_exit+0x2d/0xc0
[ 229.126686] get_signal+0x82e/0x900
[ 229.126750] ? netlink_bind+0x3d2/0x420
[ 229.126809] arch_do_signal_or_restart+0x77/0x2b0
[ 229.126876] ? __sys_bind+0xc1/0x120
[ 229.126935] exit_to_user_mode_loop+0x75/0x4a0
[ 229.127008] do_syscall_64+0x439/0xfc0
[ 229.127068] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.127132] RIP: 0033:0x47e7bb
[ 229.127189] Code: Unable to access opcode bytes at 0x47e791.
[ 229.127258] RSP: 002b:00007fffa46a3d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
[ 229.127336] RAX: 0000000000000000 RBX: 00007fffa46a3df0 RCX: 000000000047e7bb
[ 229.127412] RDX: 000000000000000c RSI: 00007fffa46a3d2c RDI: 0000000000000007
[ 229.127488] RBP: 00007fffa46a3d50 R08: 0000000000000041 R09: 00000000077d23e0
[ 229.127565] R10: 0000000000000040 R11: 0000000000000246 R12: 00007fffa46a47c8
[ 229.127641] R13: 00007fffa46a4848 R14: 00007fffa46a42c8 R15: 0000000000543540
[ 229.127717]
[ 229.127773] ---[ end trace 0000000000000000 ]---
[ 229.127936] ------------[ cut here ]------------
[ 229.127976] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/337
[ 229.128037] Modules linked in:
[ 229.128063] CPU: 3 UID: 0 PID: 337 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.128116] Tainted: [W]=WARN
[ 229.128139] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.128174] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.128207] 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
[ 229.128390] RSP: 0018:ff71f0c380607bc8 EFLAGS: 00010286
[ 229.128466] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 229.128552] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e500
[ 229.128596] RBP: 0000000000000000 R08: ff232310832683d0 R09: ff23231086219030
[ 229.128668] R10: ff232310832dc118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.128731] R13: 0000000000000011 R14: ff232310832dc000 R15: ff2323108188e500
[ 229.128806] FS: 0000000000000000(0000) GS:ff23231129816000(0000) knlGS:0000000000000000
[ 229.128888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.128927] CR2: 00007f9d330fe680 CR3: 0000000020c42003 CR4: 0000000000771ef0
[ 229.129004] PKRU: 55555554
[ 229.129022] Call Trace:
[ 229.129045]
[ 229.129059] unregister_netdevice_many_notify+0x877/0x9d0
[ 229.129127] unregister_netdevice_queue+0x9e/0xd0
[ 229.129181] __tun_detach+0x591/0x5b0
[ 229.129234] tun_chr_close+0x3f/0xc0
[ 229.129264] __fput+0xe8/0x2c0
[ 229.129285] task_work_run+0x63/0xa0
[ 229.129335] do_exit+0x2c1/0xba0
[ 229.129377] do_group_exit+0x2d/0xc0
[ 229.129404] get_signal+0x82e/0x900
[ 229.129428] ? netlink_bind+0x3d2/0x420
[ 229.129478] arch_do_signal_or_restart+0x77/0x2b0
[ 229.129521] ? __sys_bind+0xc1/0x120
[ 229.129572] exit_to_user_mode_loop+0x75/0x4a0
[ 229.129635] do_syscall_64+0x439/0xfc0
[ 229.129678] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.129740] RIP: 0033:0x47e7bb
[ 229.129773] Code: Unable to access opcode bytes at 0x47e791.
[ 229.129839] RSP: 002b:00007fffa46a3d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
[ 229.129931] RAX: 0000000000000000 RBX: 00007fffa46a3df0 RCX: 000000000047e7bb
[ 229.130030] RDX: 000000000000000c RSI: 00007fffa46a3d2c RDI: 0000000000000007
[ 229.130112] RBP: 00007fffa46a3d50 R08: 0000000000000041 R09: 00000000077d23e0
[ 229.130175] R10: 0000000000000040 R11: 0000000000000246 R12: 00007fffa46a47c8
[ 229.130267] R13: 00007fffa46a4848 R14: 00007fffa46a42c8 R15: 0000000000543540
[ 229.130317]
[ 229.130336] ---[ end trace 0000000000000000 ]---
[ 229.138135] ------------[ cut here ]------------
[ 229.138169] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: kworker/u16:0/12
[ 229.138230] Modules linked in:
[ 229.138256] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.138315] Tainted: [W]=WARN
[ 229.138336] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.138369] Workqueue: netns cleanup_net
[ 229.138393] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.138423] 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
[ 229.138519] RSP: 0018:ff71f0c380067c78 EFLAGS: 00010286
[ 229.138549] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 229.138589] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e500
[ 229.138634] RBP: 0000000000000000 R08: ff2323108327c990 R09: ff232310864c182c
[ 229.138678] R10: ff23231082dfe118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.138726] R13: 0000000000000011 R14: ff23231082dfe000 R15: ff2323108188e500
[ 229.138772] FS: 0000000000000000(0000) GS:ff23231129816000(0000) knlGS:0000000000000000
[ 229.138814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.138849] CR2: 00007f9c4abbfc40 CR3: 0000000020c42003 CR4: 0000000000771ef0
[ 229.138892] PKRU: 55555554
[ 229.138907] Call Trace:
[ 229.138921]
[ 229.138937] unregister_netdevice_many_notify+0x877/0x9d0
[ 229.138966] default_device_exit_batch+0x318/0x390
[ 229.139000] ops_undo_list+0x10b/0x240
[ 229.139025] cleanup_net+0x1d7/0x2e0
[ 229.139050] process_one_work+0x162/0x360
[ 229.139075] worker_thread+0x16e/0x2d0
[ 229.139099] ? rescuer_thread+0x510/0x510
[ 229.139125] kthread+0xe1/0x120
[ 229.139148] ? kthread_park+0xa0/0xa0
[ 229.139171] ret_from_fork+0x16d/0x250
[ 229.139196] ? kthread_park+0xa0/0xa0
[ 229.139218] ret_from_fork_asm+0x11/0x20
[ 229.139242]
[ 229.139257] ---[ end trace 0000000000000000 ]---