[ 275.067855] ------------[ cut here ]------------
[ 275.067909] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: unshare/425
[ 275.067968] Modules linked in:
[ 275.067991] CPU: 0 UID: 0 PID: 425 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 275.068061] Tainted: [W]=WARN
[ 275.068083] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 275.068118] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 275.068150] 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
[ 275.068246] RSP: 0018:ff71f0c3806ffcc8 EFLAGS: 00010286
[ 275.068275] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 275.068320] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e900
[ 275.068362] RBP: 0000000000000000 R08: ff232310830ba410 R09: ff2323108206102c
[ 275.068405] R10: ff2323108448b118 R11: fefefefefefefeff R12: 0000000000000000
[ 275.068454] R13: 0000000000000010 R14: ff2323108448b000 R15: ff2323108188e900
[ 275.068504] FS: 00007f490f846740(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 275.068546] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 275.068579] CR2: 000055bf9aa24008 CR3: 0000000006c9a005 CR4: 0000000000771ef0
[ 275.068623] PKRU: 55555554
[ 275.068637] Call Trace:
[ 275.068654]
[ 275.068669] rtmsg_ifinfo+0x3c/0xa0
[ 275.068692] register_netdevice+0x889/0x9f0
[ 275.068715] register_netdev+0x1e/0x30
[ 275.068736] loopback_net_init+0x57/0xb0
[ 275.068761] ? vsock_sysctl_init_net+0xb6/0x140
[ 275.068792] ops_init+0x68/0x140
[ 275.068815] setup_net+0x85/0x150
[ 275.068840] copy_net_ns+0xf5/0x200
[ 275.068867] create_new_namespaces+0x117/0x2f0
[ 275.068899] unshare_nsproxy_namespaces+0x85/0xb0
[ 275.068928] ksys_unshare+0x346/0x5e0
[ 275.068958] __x64_sys_unshare+0x12/0x20
[ 275.068980] do_syscall_64+0x104/0xfc0
[ 275.069012] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 275.069041] RIP: 0033:0x7f490f941bcb
[ 275.069062] 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
[ 275.069153] RSP: 002b:00007ffc1e8c5828 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 275.069195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f490f941bcb
[ 275.069233] RDX: 0000000000000000 RSI: 00007ffc1e8c5590 RDI: 0000000040000000
[ 275.069269] RBP: 00007ffc1e8c5bb0 R08: 00007ffc1e8c5780 R09: 0000000000000000
[ 275.069307] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 275.069346] R13: 0000000000000000 R14: 00000000ffffffff R15: 000055bf5c565b68
[ 275.069388]
[ 275.069403] ---[ end trace 0000000000000000 ]---
[ 275.070032] ------------[ cut here ]------------
[ 275.070062] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/425
[ 275.070124] Modules linked in:
[ 275.070147] CPU: 0 UID: 0 PID: 425 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 275.070211] Tainted: [W]=WARN
[ 275.070237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 275.070271] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 275.070298] 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
[ 275.070404] RSP: 0018:ff71f0c3806ffd68 EFLAGS: 00010286
[ 275.070431] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 275.070473] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e900
[ 275.070514] RBP: 0000000000000000 R08: ff232310830e61d0 R09: ff23231082063030
[ 275.070557] R10: ff232310846c8118 R11: fefefefefefefeff R12: 0000000000000000
[ 275.070599] R13: 0000000000000010 R14: ff232310846c8000 R15: ff2323108188e900
[ 275.070644] FS: 0000000014474400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 275.070689] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 275.070723] CR2: 00007f6f260ff000 CR3: 00000000046dc006 CR4: 0000000000771ef0
[ 275.070768] PKRU: 55555554
[ 275.070782] Call Trace:
[ 275.070798]
[ 275.070813] rtmsg_ifinfo+0x3c/0xa0
[ 275.070833] register_netdevice+0x889/0x9f0
[ 275.070855] __tun_chr_ioctl+0x83c/0x16c0
[ 275.070881] ? do_sys_openat2+0x9a/0xe0
[ 275.070902] __x64_sys_ioctl+0xa1/0xe0
[ 275.070926] do_syscall_64+0x104/0xfc0
[ 275.070948] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 275.070971] RIP: 0033:0x47cc8d
[ 275.070993] 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
[ 275.071095] RSP: 002b:00007ffe5910ef00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 275.071136] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 275.071177] RDX: 00007ffe5910ef80 RSI: 00000000400454ca RDI: 0000000000000005
[ 275.071220] RBP: 00007ffe5910ef50 R08: 0000000000000000 R09: 0000000000000000
[ 275.071264] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe5910f458
[ 275.071306] R13: 00007ffe5910f4d8 R14: 0000000000000002 R15: 0000000000543540
[ 275.071346]
[ 275.071361] ---[ end trace 0000000000000000 ]---
[ 275.071402] ------------[ cut here ]------------
[ 275.071430] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/425
[ 275.071479] Modules linked in:
[ 275.071501] CPU: 0 UID: 0 PID: 425 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 275.071555] Tainted: [W]=WARN
[ 275.071577] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 275.071609] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 275.071641] 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
[ 275.071737] RSP: 0018:ff71f0c3806ffd60 EFLAGS: 00010286
[ 275.071768] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 275.071807] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e900
[ 275.071846] RBP: 0000000000000002 R08: ff232310830e61d0 R09: ff23231082063030
[ 275.071899] R10: ff232310846c8118 R11: fefefefefefefeff R12: 0000000000000000
[ 275.071940] R13: 0000000000000010 R14: ff232310846c8000 R15: ff2323108188e900
[ 275.071982] FS: 0000000014474400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 275.072024] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 275.072056] CR2: 00007f6f260ff000 CR3: 00000000046dc006 CR4: 0000000000771ef0
[ 275.072101] PKRU: 55555554
[ 275.072114] Call Trace:
[ 275.072127]
[ 275.072143] rtnetlink_event+0x6e/0xb0
[ 275.072163] notifier_call_chain+0x6d/0x100
[ 275.072186] netdev_update_features+0x56/0x60
[ 275.072219] __tun_chr_ioctl+0xbf1/0x16c0
[ 275.072240] ? file_init_path+0x62/0x120
[ 275.072261] __x64_sys_ioctl+0xa1/0xe0
[ 275.072282] do_syscall_64+0x104/0xfc0
[ 275.072304] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 275.072335] RIP: 0033:0x47cc8d
[ 275.072360] 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
[ 275.072459] RSP: 002b:00007ffe5910ef40 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 275.072502] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 275.072542] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 275.072583] RBP: 00007ffe5910ef90 R08: 0000000000000005 R09: 0000000000001ff0
[ 275.072623] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffe5910f458
[ 275.072662] R13: 00007ffe5910f4d8 R14: 0000000000000002 R15: 0000000000543540
[ 275.072703]
[ 275.072718] ---[ end trace 0000000000000000 ]---
[ 275.072759] ------------[ cut here ]------------
[ 275.072787] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/425
[ 275.072834] Modules linked in:
[ 275.072856] CPU: 0 UID: 0 PID: 425 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 275.072911] Tainted: [W]=WARN
[ 275.072929] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 275.072962] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 275.072991] 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
[ 275.073093] RSP: 0018:ff71f0c3806ffc10 EFLAGS: 00010286
[ 275.073121] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 275.073161] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e900
[ 275.073203] RBP: 0000000000000000 R08: ff232310830e61d0 R09: ff23231086cef030
[ 275.073246] R10: ff232310846c8118 R11: fefefefefefefeff R12: 0000000000000000
[ 275.073289] R13: 0000000000000010 R14: ff232310846c8000 R15: ff2323108188e900
[ 275.073332] FS: 0000000014474400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 275.073373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 275.073408] CR2: 00007f6f260ff000 CR3: 00000000046dc006 CR4: 0000000000771ef0
[ 275.073448] PKRU: 55555554
[ 275.073462] Call Trace:
[ 275.073477]
[ 275.073489] rtmsg_ifinfo+0x3c/0xa0
[ 275.073512] __dev_notify_flags+0xb1/0xf0
[ 275.073532] netif_change_flags+0x54/0x70
[ 275.073552] dev_change_flags+0x45/0x80
[ 275.073572] devinet_ioctl+0x607/0x7f0
[ 275.073595] inet_ioctl+0x229/0x240
[ 275.073616] ? __rtnl_unlock+0x35/0x60
[ 275.073638] sock_do_ioctl+0x75/0x140
[ 275.073664] __x64_sys_ioctl+0xa1/0xe0
[ 275.073687] do_syscall_64+0x104/0xfc0
[ 275.073705] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 275.073733] RIP: 0033:0x47cc8d
[ 275.073752] 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
[ 275.073844] RSP: 002b:00007ffe5910ef20 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 275.073891] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 275.073934] RDX: 00007ffe5910ef90 RSI: 0000000000008914 RDI: 0000000000000006
[ 275.073975] RBP: 00007ffe5910ef70 R08: 0000000000000005 R09: 0000000000001ff0
[ 275.074018] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffe5910f458
[ 275.074060] R13: 00007ffe5910f4d8 R14: 0000000000000002 R15: 0000000000543540
[ 275.074101]
[ 275.074114] ---[ end trace 0000000000000000 ]---
[ 320.052238] ------------[ cut here ]------------
[ 320.052303] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/425
[ 320.052367] Modules linked in:
[ 320.052409] CPU: 0 UID: 0 PID: 425 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 320.052467] Tainted: [W]=WARN
[ 320.052487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 320.052525] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 320.052557] 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
[ 320.052654] RSP: 0018:ff71f0c3806ffb58 EFLAGS: 00010286
[ 320.052680] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 320.052722] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108182a800
[ 320.052762] RBP: 0000000000000000 R08: ff232310830e61d0 R09: ff23231086cef030
[ 320.052805] R10: ff232310846c8118 R11: fefefefefefefeff R12: 0000000000000000
[ 320.052847] R13: 0000000000000010 R14: ff232310846c8000 R15: ff2323108182a800
[ 320.052900] FS: 0000000000000000(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 320.052947] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 320.052987] CR2: 00007f6f260ff000 CR3: 0000000020c42001 CR4: 0000000000771ef0
[ 320.053036] PKRU: 55555554
[ 320.053050] Call Trace:
[ 320.053065]
[ 320.053081] rtmsg_ifinfo+0x3c/0xa0
[ 320.053106] netif_close_many+0xed/0x190
[ 320.053129] unregister_netdevice_many_notify+0x267/0x9d0
[ 320.053161] ? __queue_work+0x141/0x550
[ 320.053187] unregister_netdevice_queue+0x9e/0xd0
[ 320.053216] __tun_detach+0x591/0x5b0
[ 320.053242] tun_chr_close+0x3f/0xc0
[ 320.053264] __fput+0xe8/0x2c0
[ 320.053288] task_work_run+0x63/0xa0
[ 320.053315] do_exit+0x2c1/0xba0
[ 320.053340] ? netlink_recvmsg+0x18d/0x310
[ 320.053365] do_group_exit+0x2d/0xc0
[ 320.053389] get_signal+0x82e/0x900
[ 320.053409] arch_do_signal_or_restart+0x77/0x2b0
[ 320.053443] exit_to_user_mode_loop+0x75/0x4a0
[ 320.053470] do_syscall_64+0x439/0xfc0
[ 320.053494] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 320.053527] RIP: 0033:0x4c2d9e
[ 320.053552] Code: Unable to access opcode bytes at 0x4c2d74.
[ 320.053585] RSP: 002b:00007ffe5910e8b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 320.053625] RAX: 0000000000000014 RBX: 00007ffe5910e940 RCX: 00000000004c2d9e
[ 320.053674] RDX: 0000000000000000 RSI: 00007ffe5910e950 RDI: 0000000000000007
[ 320.053715] RBP: 00007ffe5910e8c0 R08: 0000000000000000 R09: 0000000000000000
[ 320.053757] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5910e934
[ 320.053806] R13: 00007ffe5910f4d8 R14: 00007ffe5910ea80 R15: 0000000000543540
[ 320.053849]
[ 320.053862] ---[ end trace 0000000000000000 ]---
[ 320.053956] ------------[ cut here ]------------
[ 320.053982] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/425
[ 320.054037] Modules linked in:
[ 320.054060] CPU: 0 UID: 0 PID: 425 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 320.054125] Tainted: [W]=WARN
[ 320.054147] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 320.054184] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 320.054211] 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
[ 320.054310] RSP: 0018:ff71f0c3806ffbc8 EFLAGS: 00010286
[ 320.054338] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 320.054376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108182a800
[ 320.054416] RBP: 0000000000000000 R08: ff232310830e61d0 R09: ff232310867d2030
[ 320.054456] R10: ff232310846c8118 R11: fefefefefefefeff R12: 0000000000000000
[ 320.054496] R13: 0000000000000011 R14: ff232310846c8000 R15: ff2323108182a800
[ 320.054543] FS: 0000000000000000(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 320.054589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 320.054625] CR2: 00007f6f260ff000 CR3: 00000000032da002 CR4: 0000000000771ef0
[ 320.054669] PKRU: 55555554
[ 320.054684] Call Trace:
[ 320.054701]
[ 320.054715] unregister_netdevice_many_notify+0x877/0x9d0
[ 320.054744] unregister_netdevice_queue+0x9e/0xd0
[ 320.054773] __tun_detach+0x591/0x5b0
[ 320.054795] tun_chr_close+0x3f/0xc0
[ 320.054817] __fput+0xe8/0x2c0
[ 320.054840] task_work_run+0x63/0xa0
[ 320.054865] do_exit+0x2c1/0xba0
[ 320.054885] ? netlink_recvmsg+0x18d/0x310
[ 320.054906] do_group_exit+0x2d/0xc0
[ 320.054927] get_signal+0x82e/0x900
[ 320.054949] arch_do_signal_or_restart+0x77/0x2b0
[ 320.054980] exit_to_user_mode_loop+0x75/0x4a0
[ 320.055014] do_syscall_64+0x439/0xfc0
[ 320.055038] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 320.055065] RIP: 0033:0x4c2d9e
[ 320.055085] Code: Unable to access opcode bytes at 0x4c2d74.
[ 320.055122] RSP: 002b:00007ffe5910e8b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 320.055168] RAX: 0000000000000014 RBX: 00007ffe5910e940 RCX: 00000000004c2d9e
[ 320.055210] RDX: 0000000000000000 RSI: 00007ffe5910e950 RDI: 0000000000000007
[ 320.055254] RBP: 00007ffe5910e8c0 R08: 0000000000000000 R09: 0000000000000000
[ 320.055299] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe5910e934
[ 320.055345] R13: 00007ffe5910f4d8 R14: 00007ffe5910ea80 R15: 0000000000543540
[ 320.055388]
[ 320.055403] ---[ end trace 0000000000000000 ]---
[ 320.064226] ------------[ cut here ]------------
[ 320.064262] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: kworker/u16:0/12
[ 320.064335] Modules linked in:
[ 320.064361] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 320.064424] Tainted: [W]=WARN
[ 320.064446] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 320.064481] Workqueue: netns cleanup_net
[ 320.064502] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 320.064532] 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
[ 320.064631] RSP: 0018:ff71f0c380067c78 EFLAGS: 00010286
[ 320.064666] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 320.064709] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108188e700
[ 320.064752] RBP: 0000000000000000 R08: ff232310830ba410 R09: ff23231086eea02c
[ 320.064793] R10: ff2323108448b118 R11: fefefefefefefeff R12: 0000000000000000
[ 320.064832] R13: 0000000000000011 R14: ff2323108448b000 R15: ff2323108188e700
[ 320.064874] FS: 0000000000000000(0000) GS:ff23231129816000(0000) knlGS:0000000000000000
[ 320.064919] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 320.064959] CR2: 00007f47d3db3f98 CR3: 0000000020c42005 CR4: 0000000000771ef0
[ 320.065015] PKRU: 55555554
[ 320.065030] Call Trace:
[ 320.065046]
[ 320.065063] unregister_netdevice_many_notify+0x877/0x9d0
[ 320.065092] default_device_exit_batch+0x318/0x390
[ 320.065122] ops_undo_list+0x10b/0x240
[ 320.065143] cleanup_net+0x1d7/0x2e0
[ 320.065165] process_one_work+0x162/0x360
[ 320.065189] worker_thread+0x16e/0x2d0
[ 320.065211] ? rescuer_thread+0x510/0x510
[ 320.065233] kthread+0xe1/0x120
[ 320.065256] ? kthread_park+0xa0/0xa0
[ 320.065280] ret_from_fork+0x16d/0x250
[ 320.065303] ? kthread_park+0xa0/0xa0
[ 320.065326] ret_from_fork_asm+0x11/0x20
[ 320.065348]
[ 320.065364] ---[ end trace 0000000000000000 ]---