[ 229.605633] ------------[ cut here ]------------
[ 229.605689] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: unshare/381
[ 229.605764] Modules linked in:
[ 229.605790] CPU: 0 UID: 0 PID: 381 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.605854] Tainted: [W]=WARN
[ 229.605876] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.605912] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.605942] 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
[ 229.606049] RSP: 0018:ff71f0c38065fcc8 EFLAGS: 00010286
[ 229.606078] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 229.606115] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023100
[ 229.606161] RBP: 0000000000000000 R08: ff2323108322d090 R09: ff232310819b802c
[ 229.606208] R10: ff23231081130118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.606251] R13: 0000000000000010 R14: ff23231081130000 R15: ff23231083023100
[ 229.606302] FS: 00007fead95b8740(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 229.606350] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.606387] CR2: 000055c68f1d0008 CR3: 0000000001901003 CR4: 0000000000771ef0
[ 229.606435] PKRU: 55555554
[ 229.606450] Call Trace:
[ 229.606467]
[ 229.606483] rtmsg_ifinfo+0x3c/0xa0
[ 229.606507] register_netdevice+0x889/0x9f0
[ 229.606533] register_netdev+0x1e/0x30
[ 229.606558] loopback_net_init+0x57/0xb0
[ 229.606582] ? vsock_sysctl_init_net+0xb6/0x140
[ 229.606616] ops_init+0x68/0x140
[ 229.606644] setup_net+0x85/0x150
[ 229.606668] copy_net_ns+0xf5/0x200
[ 229.606693] create_new_namespaces+0x117/0x2f0
[ 229.606729] unshare_nsproxy_namespaces+0x85/0xb0
[ 229.606761] ksys_unshare+0x346/0x5e0
[ 229.606788] __x64_sys_unshare+0x12/0x20
[ 229.606812] do_syscall_64+0x104/0xfc0
[ 229.606839] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.606870] RIP: 0033:0x7fead96b3bcb
[ 229.606895] 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
[ 229.607004] RSP: 002b:00007fffbe851d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 229.607050] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fead96b3bcb
[ 229.607114] RDX: 0000000000000000 RSI: 00007fffbe851b00 RDI: 0000000040000000
[ 229.607155] RBP: 00007fffbe852120 R08: 00007fffbe851cf0 R09: 0000000000000000
[ 229.607201] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 229.607252] R13: 0000000000000000 R14: 00000000ffffffff R15: 000055c68e1bcb68
[ 229.607295]
[ 229.607311] ---[ end trace 0000000000000000 ]---
[ 229.608151] ------------[ cut here ]------------
[ 229.608196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/381
[ 229.608251] Modules linked in:
[ 229.608274] CPU: 0 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.608338] Tainted: [W]=WARN
[ 229.608364] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.608406] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.608437] 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
[ 229.608578] RSP: 0018:ff71f0c38065fd68 EFLAGS: 00010286
[ 229.608610] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 229.608653] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023100
[ 229.608699] RBP: 0000000000000000 R08: ff23231083268f10 R09: ff23231086ce9030
[ 229.608747] R10: ff23231086c9c118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.608791] R13: 0000000000000010 R14: ff23231086c9c000 R15: ff23231083023100
[ 229.608840] FS: 00000000172dc400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 229.608886] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.608925] CR2: 00007ff527d66000 CR3: 00000000018fe004 CR4: 0000000000771ef0
[ 229.608973] PKRU: 55555554
[ 229.608989] Call Trace:
[ 229.609013]
[ 229.609030] rtmsg_ifinfo+0x3c/0xa0
[ 229.609056] register_netdevice+0x889/0x9f0
[ 229.609087] __tun_chr_ioctl+0x83c/0x16c0
[ 229.609115] ? do_sys_openat2+0x9a/0xe0
[ 229.609147] __x64_sys_ioctl+0xa1/0xe0
[ 229.609173] do_syscall_64+0x104/0xfc0
[ 229.609202] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.609234] RIP: 0033:0x47cc8d
[ 229.609258] 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
[ 229.609365] RSP: 002b:00007ffe78877ae0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.609411] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 229.609454] RDX: 00007ffe78877b60 RSI: 00000000400454ca RDI: 0000000000000005
[ 229.609498] RBP: 00007ffe78877b30 R08: 0000000000000000 R09: 0000000000000000
[ 229.609544] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe78878038
[ 229.609587] R13: 00007ffe788780b8 R14: 0000000000000002 R15: 0000000000543540
[ 229.609635]
[ 229.609649] ---[ end trace 0000000000000000 ]---
[ 229.609702] ------------[ cut here ]------------
[ 229.609735] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/381
[ 229.609787] Modules linked in:
[ 229.609811] CPU: 0 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.609871] Tainted: [W]=WARN
[ 229.609893] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.609935] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.609968] 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
[ 229.610069] RSP: 0018:ff71f0c38065fd60 EFLAGS: 00010286
[ 229.610098] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 229.610142] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023100
[ 229.610187] RBP: 0000000000000002 R08: ff23231083268f10 R09: ff23231086ce9030
[ 229.610235] R10: ff23231086c9c118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.610278] R13: 0000000000000010 R14: ff23231086c9c000 R15: ff23231083023100
[ 229.610325] FS: 00000000172dc400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 229.610376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.610412] CR2: 00007ff527d66000 CR3: 00000000018fe004 CR4: 0000000000771ef0
[ 229.610458] PKRU: 55555554
[ 229.610471] Call Trace:
[ 229.610488]
[ 229.610504] rtnetlink_event+0x6e/0xb0
[ 229.610527] notifier_call_chain+0x6d/0x100
[ 229.610554] netdev_update_features+0x56/0x60
[ 229.610589] __tun_chr_ioctl+0xbf1/0x16c0
[ 229.610615] ? file_init_path+0x62/0x120
[ 229.610641] __x64_sys_ioctl+0xa1/0xe0
[ 229.610665] do_syscall_64+0x104/0xfc0
[ 229.610688] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.610720] RIP: 0033:0x47cc8d
[ 229.610746] 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
[ 229.610847] RSP: 002b:00007ffe78877b20 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.610891] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 229.610939] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 229.610982] RBP: 00007ffe78877b70 R08: 0000000000000000 R09: 0000000000000000
[ 229.611029] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe78878038
[ 229.611073] R13: 00007ffe788780b8 R14: 0000000000000002 R15: 0000000000543540
[ 229.611122]
[ 229.611136] ---[ end trace 0000000000000000 ]---
[ 229.611187] ------------[ cut here ]------------
[ 229.611216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/381
[ 229.611272] Modules linked in:
[ 229.611296] CPU: 0 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 229.611355] Tainted: [W]=WARN
[ 229.611378] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 229.611412] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 229.611442] 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
[ 229.611549] RSP: 0018:ff71f0c38065fc10 EFLAGS: 00010286
[ 229.611579] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 229.611622] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231083023100
[ 229.611664] RBP: 0000000000000000 R08: ff23231083268f10 R09: ff23231082062030
[ 229.611712] R10: ff23231086c9c118 R11: fefefefefefefeff R12: 0000000000000000
[ 229.611761] R13: 0000000000000010 R14: ff23231086c9c000 R15: ff23231083023100
[ 229.611805] FS: 00000000172dc400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 229.611850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.611889] CR2: 00007ff527d66000 CR3: 00000000018fe004 CR4: 0000000000771ef0
[ 229.611935] PKRU: 55555554
[ 229.611951] Call Trace:
[ 229.611966]
[ 229.611981] rtmsg_ifinfo+0x3c/0xa0
[ 229.612003] __dev_notify_flags+0xb1/0xf0
[ 229.612028] netif_change_flags+0x54/0x70
[ 229.612053] dev_change_flags+0x45/0x80
[ 229.612076] devinet_ioctl+0x607/0x7f0
[ 229.612103] inet_ioctl+0x229/0x240
[ 229.612129] ? __rtnl_unlock+0x35/0x60
[ 229.612156] sock_do_ioctl+0x75/0x140
[ 229.612183] __x64_sys_ioctl+0xa1/0xe0
[ 229.612208] do_syscall_64+0x104/0xfc0
[ 229.612233] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 229.612263] RIP: 0033:0x47cc8d
[ 229.612287] 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
[ 229.612392] RSP: 002b:00007ffe78877b00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 229.612437] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 229.612482] RDX: 00007ffe78877b70 RSI: 0000000000008914 RDI: 0000000000000006
[ 229.612528] RBP: 00007ffe78877b50 R08: 0000000000000000 R09: 0000000000000000
[ 229.612574] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe78878038
[ 229.612619] R13: 00007ffe788780b8 R14: 0000000000000002 R15: 0000000000543540
[ 229.612663]
[ 229.612679] ---[ end trace 0000000000000000 ]---
[ 274.590127] ------------[ cut here ]------------
[ 274.590205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/381
[ 274.590271] Modules linked in:
[ 274.590299] CPU: 0 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 274.590363] Tainted: [W]=WARN
[ 274.590385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.590424] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 274.590456] 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
[ 274.590549] RSP: 0018:ff71f0c38065fb58 EFLAGS: 00010286
[ 274.590587] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 274.590631] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e900
[ 274.590672] RBP: 0000000000000000 R08: ff23231083268f10 R09: ff23231082062030
[ 274.590716] R10: ff23231086c9c118 R11: fefefefefefefeff R12: 0000000000000000
[ 274.590750] R13: 0000000000000010 R14: ff23231086c9c000 R15: ff2323108188e900
[ 274.590796] FS: 0000000000000000(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 274.590838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 274.590879] CR2: 00007ff527d66000 CR3: 0000000020c42006 CR4: 0000000000771ef0
[ 274.590921] PKRU: 55555554
[ 274.590936] Call Trace:
[ 274.590952]
[ 274.590968] rtmsg_ifinfo+0x3c/0xa0
[ 274.590988] netif_close_many+0xed/0x190
[ 274.591014] unregister_netdevice_many_notify+0x267/0x9d0
[ 274.591045] ? __queue_work+0x141/0x550
[ 274.591071] unregister_netdevice_queue+0x9e/0xd0
[ 274.591098] __tun_detach+0x591/0x5b0
[ 274.591118] tun_chr_close+0x3f/0xc0
[ 274.591141] __fput+0xe8/0x2c0
[ 274.591169] task_work_run+0x63/0xa0
[ 274.591201] do_exit+0x2c1/0xba0
[ 274.591225] ? ___sys_recvmsg+0xc6/0x100
[ 274.591249] do_group_exit+0x2d/0xc0
[ 274.591272] get_signal+0x82e/0x900
[ 274.591296] ? sysvec_reschedule_ipi+0x25/0x120
[ 274.591326] ? fsnotify_grab_connector+0x4a/0x90
[ 274.591358] arch_do_signal_or_restart+0x77/0x2b0
[ 274.591393] exit_to_user_mode_loop+0x75/0x4a0
[ 274.591426] do_syscall_64+0x439/0xfc0
[ 274.591447] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 274.591480] RIP: 0033:0x47fb83
[ 274.591502] Code: Unable to access opcode bytes at 0x47fb59.
[ 274.591535] RSP: 002b:00007ffe788775d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[ 274.591577] RAX: 0000000000000000 RBX: 00000000fffffff5 RCX: 000000000047fb83
[ 274.591617] RDX: 000000000000000e RSI: f68737f3a8ff0226 RDI: 0000000000000007
[ 274.591660] RBP: 00007ffe78877ad0 R08: 0000000000000041 R09: 00000000172dd3e0
[ 274.591704] R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000000
[ 274.591745] R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000543540
[ 274.591794]
[ 274.591809] ---[ end trace 0000000000000000 ]---
[ 274.591922] ------------[ cut here ]------------
[ 274.591957] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: packetdrill/381
[ 274.592017] Modules linked in:
[ 274.592042] CPU: 1 UID: 0 PID: 381 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 274.592102] Tainted: [W]=WARN
[ 274.592123] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.592158] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 274.592190] 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
[ 274.592288] RSP: 0018:ff71f0c38065fbc8 EFLAGS: 00010286
[ 274.592317] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 274.592361] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231081842400
[ 274.592405] RBP: 0000000000000000 R08: ff23231083268f10 R09: ff2323108601e830
[ 274.592447] R10: ff23231086c9c118 R11: fefefefefefefeff R12: 0000000000000000
[ 274.592488] R13: 0000000000000011 R14: ff23231086c9c000 R15: ff23231081842400
[ 274.592538] FS: 0000000000000000(0000) GS:ff23231129716000(0000) knlGS:0000000000000000
[ 274.592583] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 274.592612] CR2: 00007f69ee13c620 CR3: 0000000020c42002 CR4: 0000000000771ef0
[ 274.592655] PKRU: 55555554
[ 274.592669] Call Trace:
[ 274.592683]
[ 274.592698] unregister_netdevice_many_notify+0x877/0x9d0
[ 274.592730] unregister_netdevice_queue+0x9e/0xd0
[ 274.592758] __tun_detach+0x591/0x5b0
[ 274.592781] tun_chr_close+0x3f/0xc0
[ 274.592804] __fput+0xe8/0x2c0
[ 274.592828] task_work_run+0x63/0xa0
[ 274.592850] do_exit+0x2c1/0xba0
[ 274.592876] ? ___sys_recvmsg+0xc6/0x100
[ 274.592899] do_group_exit+0x2d/0xc0
[ 274.592918] get_signal+0x82e/0x900
[ 274.592942] ? sysvec_reschedule_ipi+0x25/0x120
[ 274.592969] ? fsnotify_grab_connector+0x4a/0x90
[ 274.593000] arch_do_signal_or_restart+0x77/0x2b0
[ 274.593034] exit_to_user_mode_loop+0x75/0x4a0
[ 274.593061] do_syscall_64+0x439/0xfc0
[ 274.593084] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 274.593118] RIP: 0033:0x47fb83
[ 274.593140] Code: Unable to access opcode bytes at 0x47fb59.
[ 274.593176] RSP: 002b:00007ffe788775d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[ 274.593220] RAX: 0000000000000000 RBX: 00000000fffffff5 RCX: 000000000047fb83
[ 274.593255] RDX: 000000000000000e RSI: f68737f3a8ff0226 RDI: 0000000000000007
[ 274.593294] RBP: 00007ffe78877ad0 R08: 0000000000000041 R09: 00000000172dd3e0
[ 274.593333] R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000000
[ 274.593375] R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000543540
[ 274.593420]
[ 274.593444] ---[ end trace 0000000000000000 ]---
[ 274.603151] ------------[ cut here ]------------
[ 274.603196] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: kworker/u16:0/12
[ 274.603268] Modules linked in:
[ 274.603294] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 274.603356] Tainted: [W]=WARN
[ 274.603376] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.603410] Workqueue: netns cleanup_net
[ 274.603440] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 274.603469] 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
[ 274.603571] RSP: 0018:ff71f0c380067c78 EFLAGS: 00010286
[ 274.603601] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 274.603642] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e600
[ 274.603686] RBP: 0000000000000000 R08: ff2323108322d090 R09: ff2323108601082c
[ 274.603728] R10: ff23231081130118 R11: fefefefefefefeff R12: 0000000000000000
[ 274.603770] R13: 0000000000000011 R14: ff23231081130000 R15: ff2323108188e600
[ 274.603821] FS: 0000000000000000(0000) GS:ff23231129816000(0000) knlGS:0000000000000000
[ 274.603872] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 274.603907] CR2: 00007fadc46e6f98 CR3: 0000000020c42004 CR4: 0000000000771ef0
[ 274.603948] PKRU: 55555554
[ 274.603963] Call Trace:
[ 274.603977]
[ 274.603992] unregister_netdevice_many_notify+0x877/0x9d0
[ 274.604028] default_device_exit_batch+0x318/0x390
[ 274.604054] ops_undo_list+0x10b/0x240
[ 274.604078] cleanup_net+0x1d7/0x2e0
[ 274.604098] process_one_work+0x162/0x360
[ 274.604126] worker_thread+0x16e/0x2d0
[ 274.604150] ? rescuer_thread+0x510/0x510
[ 274.604174] kthread+0xe1/0x120
[ 274.604193] ? kthread_park+0xa0/0xa0
[ 274.604217] ret_from_fork+0x16d/0x250
[ 274.604240] ? kthread_park+0xa0/0xa0
[ 274.604262] ret_from_fork_asm+0x11/0x20
[ 274.604285]
[ 274.604299] ---[ end trace 0000000000000000 ]---