[ 2.207546] ------------[ cut here ]------------ [ 2.207600] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: unshare/158 [ 2.207655] Modules linked in: [ 2.207679] CPU: 0 UID: 0 PID: 158 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 2.207739] Tainted: [W]=WARN [ 2.207760] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.207793] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 2.207822] 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 [ 2.207922] RSP: 0018:ff82f7ea803cfcc8 EFLAGS: 00010286 [ 2.207952] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000 [ 2.207990] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3286d842fdb500 [ 2.208030] RBP: 0000000000000000 R08: ff3286d8432ebe10 R09: ff3286d84301402c [ 2.208070] R10: ff3286d843017118 R11: fefefefefefefeff R12: 0000000000000000 [ 2.208115] R13: 0000000000000010 R14: ff3286d843017000 R15: ff3286d842fdb500 [ 2.208162] FS: 00007f06bb3eb740(0000) GS:ff3286d8cd696000(0000) knlGS:0000000000000000 [ 2.208210] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.208239] CR2: 000055f1a25c7310 CR3: 0000000002fc3006 CR4: 0000000000771ef0 [ 2.208282] PKRU: 55555554 [ 2.208298] Call Trace: [ 2.208315] [ 2.208329] rtmsg_ifinfo+0x3c/0xa0 [ 2.208354] register_netdevice+0x889/0x9f0 [ 2.208376] register_netdev+0x1e/0x30 [ 2.208399] loopback_net_init+0x57/0xb0 [ 2.208423] ? vsock_sysctl_init_net+0xb6/0x140 [ 2.208455] ops_init+0x68/0x140 [ 2.208478] setup_net+0x85/0x150 [ 2.208500] copy_net_ns+0xf5/0x200 [ 2.208523] create_new_namespaces+0x117/0x2f0 [ 2.208556] unshare_nsproxy_namespaces+0x85/0xb0 [ 2.208587] ksys_unshare+0x346/0x5e0 [ 2.208612] __x64_sys_unshare+0x12/0x20 [ 2.208636] do_syscall_64+0x104/0xfc0 [ 2.208660] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.208690] RIP: 0033:0x7f06bb4e6bcb [ 2.208716] 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 [ 2.208811] RSP: 002b:00007ffd1fba9488 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 2.208855] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f06bb4e6bcb [ 2.208900] RDX: 0000000000000000 RSI: 00007ffd1fba91f0 RDI: 0000000040000000 [ 2.208948] RBP: 00007ffd1fba9810 R08: 00007ffd1fba93e0 R09: 0000000000000000 [ 2.208990] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000 [ 2.209031] R13: 0000000000000000 R14: 00000000ffffffff R15: 000055f1a25cab68 [ 2.209073] [ 2.209089] ---[ end trace 0000000000000000 ]--- [ 2.212213] ------------[ cut here ]------------ [ 2.212258] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/158 [ 2.212311] Modules linked in: [ 2.212333] CPU: 0 UID: 0 PID: 158 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 2.212391] Tainted: [W]=WARN [ 2.212416] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.212450] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 2.212477] 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 [ 2.212575] RSP: 0018:ff82f7ea803cfd68 EFLAGS: 00010286 [ 2.212615] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000 [ 2.212664] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3286d842fdb500 [ 2.212715] RBP: 0000000000000000 R08: ff3286d843232410 R09: ff3286d844e49030 [ 2.212755] R10: ff3286d844cdc118 R11: fefefefefefefeff R12: 0000000000000000 [ 2.212795] R13: 0000000000000010 R14: ff3286d844cdc000 R15: ff3286d842fdb500 [ 2.212840] FS: 000000003cfaf400(0000) GS:ff3286d8cd696000(0000) knlGS:0000000000000000 [ 2.212884] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.212917] CR2: 00007f8a6e8ca000 CR3: 0000000003255001 CR4: 0000000000771ef0 [ 2.212957] PKRU: 55555554 [ 2.212972] Call Trace: [ 2.212985] [ 2.213003] rtmsg_ifinfo+0x3c/0xa0 [ 2.213022] register_netdevice+0x889/0x9f0 [ 2.213051] __tun_chr_ioctl+0x83c/0x16c0 [ 2.213079] ? do_sys_openat2+0x9a/0xe0 [ 2.213107] __x64_sys_ioctl+0xa1/0xe0 [ 2.213130] do_syscall_64+0x104/0xfc0 [ 2.213157] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.213184] RIP: 0033:0x47cc8d [ 2.213203] 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 [ 2.213290] RSP: 002b:00007fff26b5dee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 2.213332] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d [ 2.213377] RDX: 00007fff26b5df60 RSI: 00000000400454ca RDI: 0000000000000005 [ 2.213419] RBP: 00007fff26b5df30 R08: 0000000000000000 R09: 0000000000000000 [ 2.213460] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff26b5e438 [ 2.213509] R13: 00007fff26b5e4b8 R14: 0000000000000002 R15: 0000000000543540 [ 2.213547] [ 2.213562] ---[ end trace 0000000000000000 ]--- [ 2.213602] ------------[ cut here ]------------ [ 2.213628] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/158 [ 2.213679] Modules linked in: [ 2.213704] CPU: 0 UID: 0 PID: 158 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 2.213765] Tainted: [W]=WARN [ 2.213786] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.213822] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 2.213851] 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 [ 2.213956] RSP: 0018:ff82f7ea803cfd60 EFLAGS: 00010286 [ 2.213980] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000 [ 2.214019] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3286d842fdb500 [ 2.214061] RBP: 0000000000000002 R08: ff3286d843232410 R09: ff3286d844e49030 [ 2.214103] R10: ff3286d844cdc118 R11: fefefefefefefeff R12: 0000000000000000 [ 2.214138] R13: 0000000000000010 R14: ff3286d844cdc000 R15: ff3286d842fdb500 [ 2.214184] FS: 000000003cfaf400(0000) GS:ff3286d8cd696000(0000) knlGS:0000000000000000 [ 2.214238] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.214272] CR2: 00007f8a6e8ca000 CR3: 0000000003255001 CR4: 0000000000771ef0 [ 2.214314] PKRU: 55555554 [ 2.214329] Call Trace: [ 2.214342] [ 2.214357] rtnetlink_event+0x6e/0xb0 [ 2.214378] notifier_call_chain+0x6d/0x100 [ 2.214398] netdev_update_features+0x56/0x60 [ 2.214427] __tun_chr_ioctl+0xbf1/0x16c0 [ 2.214449] ? file_init_path+0x62/0x120 [ 2.214470] __x64_sys_ioctl+0xa1/0xe0 [ 2.214489] do_syscall_64+0x104/0xfc0 [ 2.214510] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.214537] RIP: 0033:0x47cc8d [ 2.214557] 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 [ 2.214654] RSP: 002b:00007fff26b5df20 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 2.214692] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d [ 2.214738] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005 [ 2.214777] RBP: 00007fff26b5df70 R08: 0000000000000000 R09: 0000000000000000 [ 2.214817] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff26b5e438 [ 2.214860] R13: 00007fff26b5e4b8 R14: 0000000000000002 R15: 0000000000543540 [ 2.214898] [ 2.214918] ---[ end trace 0000000000000000 ]--- [ 2.214968] ------------[ cut here ]------------ [ 2.215000] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/158 [ 2.215050] Modules linked in: [ 2.215071] CPU: 0 UID: 0 PID: 158 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 2.215132] Tainted: [W]=WARN [ 2.215154] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.215189] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 2.215220] 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 [ 2.215315] RSP: 0018:ff82f7ea803cfc10 EFLAGS: 00010286 [ 2.215348] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000 [ 2.215390] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3286d842fdb500 [ 2.215430] RBP: 0000000000000000 R08: ff3286d843232410 R09: ff3286d844e4e030 [ 2.215472] R10: ff3286d844cdc118 R11: fefefefefefefeff R12: 0000000000000000 [ 2.215513] R13: 0000000000000010 R14: ff3286d844cdc000 R15: ff3286d842fdb500 [ 2.215559] FS: 000000003cfaf400(0000) GS:ff3286d8cd696000(0000) knlGS:0000000000000000 [ 2.215596] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.215631] CR2: 00007f8a6e8ca000 CR3: 0000000003255001 CR4: 0000000000771ef0 [ 2.215673] PKRU: 55555554 [ 2.215693] Call Trace: [ 2.215710] [ 2.215730] rtmsg_ifinfo+0x3c/0xa0 [ 2.215751] __dev_notify_flags+0xb1/0xf0 [ 2.215773] netif_change_flags+0x54/0x70 [ 2.215794] dev_change_flags+0x45/0x80 [ 2.215814] devinet_ioctl+0x607/0x7f0 [ 2.215840] inet_ioctl+0x229/0x240 [ 2.215860] ? __rtnl_unlock+0x35/0x60 [ 2.215879] sock_do_ioctl+0x75/0x140 [ 2.215902] __x64_sys_ioctl+0xa1/0xe0 [ 2.215927] do_syscall_64+0x104/0xfc0 [ 2.215949] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.215978] RIP: 0033:0x47cc8d [ 2.215999] 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 [ 2.216103] RSP: 002b:00007fff26b5df00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 2.216145] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d [ 2.216184] RDX: 00007fff26b5df70 RSI: 0000000000008914 RDI: 0000000000000006 [ 2.216223] RBP: 00007fff26b5df50 R08: 0000000000000000 R09: 0000000000000000 [ 2.216258] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff26b5e438 [ 2.216304] R13: 00007fff26b5e4b8 R14: 0000000000000002 R15: 0000000000543540 [ 2.216337] [ 2.216357] ---[ end trace 0000000000000000 ]--- [ 47.191262] ------------[ cut here ]------------ [ 47.191334] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/158 [ 47.191400] Modules linked in: [ 47.191424] CPU: 0 UID: 0 PID: 158 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 47.191471] Tainted: [W]=WARN [ 47.191496] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 47.191537] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 47.191570] 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 [ 47.191660] RSP: 0018:ff82f7ea803cfb58 EFLAGS: 00010286 [ 47.191690] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000 [ 47.191739] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3286d8418a0a00 [ 47.191779] RBP: 0000000000000000 R08: ff3286d843232410 R09: ff3286d844e4e030 [ 47.191821] R10: ff3286d844cdc118 R11: fefefefefefefeff R12: 0000000000000000 [ 47.191865] R13: 0000000000000010 R14: ff3286d844cdc000 R15: ff3286d8418a0a00 [ 47.191909] FS: 0000000000000000(0000) GS:ff3286d8cd696000(0000) knlGS:0000000000000000 [ 47.191952] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.191991] CR2: 00007f8a6e8ca000 CR3: 0000000030e42004 CR4: 0000000000771ef0 [ 47.192036] PKRU: 55555554 [ 47.192049] Call Trace: [ 47.192063] [ 47.192079] rtmsg_ifinfo+0x3c/0xa0 [ 47.192103] netif_close_many+0xed/0x190 [ 47.192130] unregister_netdevice_many_notify+0x267/0x9d0 [ 47.192162] ? __queue_work+0x141/0x550 [ 47.192187] unregister_netdevice_queue+0x9e/0xd0 [ 47.192218] __tun_detach+0x591/0x5b0 [ 47.192244] tun_chr_close+0x3f/0xc0 [ 47.192266] __fput+0xe8/0x2c0 [ 47.192293] task_work_run+0x63/0xa0 [ 47.192319] do_exit+0x2c1/0xba0 [ 47.192343] ? netlink_dump+0x336/0x450 [ 47.192377] do_group_exit+0x2d/0xc0 [ 47.192398] get_signal+0x82e/0x900 [ 47.192421] arch_do_signal_or_restart+0x77/0x2b0 [ 47.192452] exit_to_user_mode_loop+0x75/0x4a0 [ 47.192487] do_syscall_64+0x439/0xfc0 [ 47.192511] ? __sysvec_call_function_single+0x20/0xd0 [ 47.192545] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 47.192579] RIP: 0033:0x4c2d9e [ 47.192604] Code: Unable to access opcode bytes at 0x4c2d74. [ 47.192639] RSP: 002b:00007fff26b5d890 EFLAGS: 00000202 ORIG_RAX: 000000000000002f [ 47.192682] RAX: 0000000000000050 RBX: 00007fff26b5d920 RCX: 00000000004c2d9e [ 47.192726] RDX: 0000000000000000 RSI: 00007fff26b5d930 RDI: 0000000000000007 [ 47.192766] RBP: 00007fff26b5d8a0 R08: 0000000000000000 R09: 0000000000000000 [ 47.192815] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff26b5d914 [ 47.192862] R13: 00007fff26b5e4b8 R14: 00007fff26b5da60 R15: 0000000000543540 [ 47.192905] [ 47.192920] ---[ end trace 0000000000000000 ]--- [ 47.193014] ------------[ cut here ]------------ [ 47.193041] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/158 [ 47.193088] Modules linked in: [ 47.193302] CPU: 0 UID: 0 PID: 158 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 47.193358] Tainted: [W]=WARN [ 47.193379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 47.193412] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 47.193438] 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 [ 47.193541] RSP: 0018:ff82f7ea803cfbc8 EFLAGS: 00010286 [ 47.193572] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000 [ 47.193612] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3286d8418a0a00 [ 47.193651] RBP: 0000000000000000 R08: ff3286d843232410 R09: ff3286d844e42030 [ 47.193694] R10: ff3286d844cdc118 R11: fefefefefefefeff R12: 0000000000000000 [ 47.193746] R13: 0000000000000011 R14: ff3286d844cdc000 R15: ff3286d8418a0a00 [ 47.193802] FS: 0000000000000000(0000) GS:ff3286d8cd696000(0000) knlGS:0000000000000000 [ 47.193850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.193889] CR2: 00007f8a6e8ca000 CR3: 0000000030e42004 CR4: 0000000000771ef0 [ 47.193931] PKRU: 55555554 [ 47.193946] Call Trace: [ 47.193964] [ 47.193980] unregister_netdevice_many_notify+0x877/0x9d0 [ 47.194014] unregister_netdevice_queue+0x9e/0xd0 [ 47.194044] __tun_detach+0x591/0x5b0 [ 47.194063] tun_chr_close+0x3f/0xc0 [ 47.194087] __fput+0xe8/0x2c0 [ 47.194110] task_work_run+0x63/0xa0 [ 47.194129] do_exit+0x2c1/0xba0 [ 47.194149] ? netlink_dump+0x336/0x450 [ 47.194171] do_group_exit+0x2d/0xc0 [ 47.194191] get_signal+0x82e/0x900 [ 47.194211] arch_do_signal_or_restart+0x77/0x2b0 [ 47.194243] exit_to_user_mode_loop+0x75/0x4a0 [ 47.194275] do_syscall_64+0x439/0xfc0 [ 47.194300] ? __sysvec_call_function_single+0x20/0xd0 [ 47.194330] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 47.194357] RIP: 0033:0x4c2d9e [ 47.194377] Code: Unable to access opcode bytes at 0x4c2d74. [ 47.194412] RSP: 002b:00007fff26b5d890 EFLAGS: 00000202 ORIG_RAX: 000000000000002f [ 47.194451] RAX: 0000000000000050 RBX: 00007fff26b5d920 RCX: 00000000004c2d9e [ 47.194491] RDX: 0000000000000000 RSI: 00007fff26b5d930 RDI: 0000000000000007 [ 47.194532] RBP: 00007fff26b5d8a0 R08: 0000000000000000 R09: 0000000000000000 [ 47.194575] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff26b5d914 [ 47.194617] R13: 00007fff26b5e4b8 R14: 00007fff26b5da60 R15: 0000000000543540 [ 47.194657] [ 47.194670] ---[ end trace 0000000000000000 ]--- [ 47.207232] ------------[ cut here ]------------ [ 47.207306] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:0/12 [ 47.207403] Modules linked in: [ 47.207460] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy) [ 47.207556] Tainted: [W]=WARN [ 47.207613] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 47.207682] Workqueue: netns cleanup_net [ 47.207740] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110 [ 47.207810] 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 [ 47.207945] RSP: 0018:ff82f7ea80067c78 EFLAGS: 00010286 [ 47.208011] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000 [ 47.208087] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff3286d8418a0b00 [ 47.208170] RBP: 0000000000000000 R08: ff3286d8432ebe10 R09: ff3286d8432c502c [ 47.208245] R10: ff3286d843017118 R11: fefefefefefefeff R12: 0000000000000000 [ 47.208322] R13: 0000000000000011 R14: ff3286d843017000 R15: ff3286d8418a0b00 [ 47.208402] FS: 0000000000000000(0000) GS:ff3286d8cd796000(0000) knlGS:0000000000000000 [ 47.208482] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.208553] CR2: 00007f414a4e8f98 CR3: 0000000030e42001 CR4: 0000000000771ef0 [ 47.208633] PKRU: 55555554 [ 47.208682] Call Trace: [ 47.208731] [ 47.208790] unregister_netdevice_many_notify+0x877/0x9d0 [ 47.208891] default_device_exit_batch+0x318/0x390 [ 47.208958] ops_undo_list+0x10b/0x240 [ 47.209018] cleanup_net+0x1d7/0x2e0 [ 47.209078] process_one_work+0x162/0x360 [ 47.209141] worker_thread+0x16e/0x2d0 [ 47.209199] ? rescuer_thread+0x510/0x510 [ 47.209256] kthread+0xe1/0x120 [ 47.209314] ? kthread_park+0xa0/0xa0 [ 47.209371] ret_from_fork+0x16d/0x250 [ 47.209429] ? kthread_park+0xa0/0xa0 [ 47.209487] ret_from_fork_asm+0x11/0x20 [ 47.209547] [ 47.209598] ---[ end trace 0000000000000000 ]---