======================================
| xx__-> [    9.720144][  T187] ------------[ cut here ]------------
| [    9.720403][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/187
| [    9.720703][  T187] Modules linked in: nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [    9.721372][  T187] Tainted: [W]=WARN
[    9.721532][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.721792][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.722019][  T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.722682][  T187] RSP: 0018:ffa0000000587ab0 EFLAGS: 00010286
[    9.722900][  T187] RAX: 00000000ffffffa6 RBX: ff11000009351c40 RCX: 1ff40000000b0f1c
[    9.723204][  T187] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009351cfc
[    9.723461][  T187] RBP: ff11000008044000 R08: 1fe220000126a3a1 R09: ff1100000d3a5210
[    9.723708][  T187] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.723955][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008044000
[    9.724221][  T187] FS:  00007efc82153840(0000) GS:ff110000938ac000(0000) knlGS:0000000000000000
[    9.724517][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.724736][  T187] CR2: 0000000000479648 CR3: 0000000016992001 CR4: 0000000000771ef0
[    9.724987][  T187] PKRU: 55555554
[    9.725148][  T187] Call Trace:
[    9.725296][  T187]  <TASK>
[    9.725423][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.725611][  T187]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.725798][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.725950][  T187]  register_netdevice (net/core/dev.c:11488)
[    9.726148][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.726367][  T187]  register_netdev (net/core/dev.c:11552)
[    9.726558][  T187]  loopback_net_init (drivers/net/loopback.c:218)
[    9.726744][  T187]  ops_init (net/core/net_namespace.c:137)
[    9.726896][  T187]  setup_net (net/core/net_namespace.c:446)
[    9.727047][  T187]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.727243][  T187]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.727435][  T187]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.727621][  T187]  copy_net_ns (net/core/net_namespace.c:579)
[    9.727806][  T187]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.728003][  T187]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.728201][  T187]  ksys_unshare (kernel/fork.c:3243)
[    9.728384][  T187]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.728573][  T187]  ? __ia32_sys_open (fs/open.c:1374)
[    9.728759][  T187]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.728942][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.729139][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.729324][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.729516][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.729699][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.729913][  T187] RIP: 0033:0x7efc82415bcb
[    9.730102][  T187] 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
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.730644][  T187] RSP: 002b:00007fff8ac10628 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.730894][  T187] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007efc82415bcb
[    9.731153][  T187] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.731400][  T187] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.731659][  T187] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff8ac12850
[    9.731906][  T187] R13: 0000000000000001 R14: 00007efc821536f8 R15: 00007fff8ac13842
| [    9.770905][  T188] ------------[ cut here ]------------
| [    9.771101][  T188] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/188
| [    9.771836][  T188] Modules linked in: nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [    9.772432][  T188] Tainted: [W]=WARN
[    9.772583][  T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.772798][  T188] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.773019][  T188] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.773567][  T188] RSP: 0018:ffa00000005a7030 EFLAGS: 00010286
[    9.773783][  T188] RAX: 00000000ffffffa6 RBX: ff11000009350040 RCX: 1ff40000000b4dcc
[    9.774033][  T188] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093500fc
[    9.774292][  T188] RBP: ff11000008044000 R08: 1fe220000126a021 R09: ff1100000d2d51e8
[    9.774545][  T188] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.774790][  T188] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008044ce1
[    9.775042][  T188] FS:  00007f5308aea840(0000) GS:ff110000938ac000(0000) knlGS:0000000000000000
[    9.775337][  T188] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.775558][  T188] CR2: 000000001c7d5988 CR3: 0000000016992003 CR4: 0000000000771ef0
[    9.775805][  T188] PKRU: 55555554
[    9.775951][  T188] Call Trace:
[    9.776104][  T188]  <TASK>
[    9.776232][  T188]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.776425][  T188]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.776576][  T188]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.776759][  T188]  __dev_notify_flags (net/core/dev.c:9787)
[    9.776943][  T188]  ? netif_change_name (net/core/dev.c:1495)
[    9.777138][  T188]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.777319][  T188]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    9.777513][  T188]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.777699][  T188]  netif_change_flags (net/core/dev.c:9820)
[    9.777884][  T188]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.778068][  T188]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.778266][  T188]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.778488][  T188]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.778673][  T188]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.778854][  T188]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.779034][  T188]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.779230][  T188]  ? __kernel_text_address (kernel/extable.c:79)
[    9.779421][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.779604][  T188]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.779785][  T188]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.779969][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.780162][  T188]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.780342][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.780526][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.780707][  T188]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.780888][  T188]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.781068][  T188]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.781262][  T188]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.781453][  T188]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.781639][  T188]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.781823][  T188]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.782007][  T188]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.782201][  T188]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.782384][  T188]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.782571][  T188]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.782751][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.782939][  T188]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.783132][  T188]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.783312][  T188]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.783495][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.783677][  T188]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.783859][  T188]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.784042][  T188]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.784235][  T188]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.784424][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.784608][  T188]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.784787][  T188]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.784971][  T188]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.785165][  T188]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.785349][  T188]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.785542][  T188]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.785727][  T188]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.785910][  T188]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.786095][  T188]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.786289][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.786479][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:453 kernel/locking/lockdep.c:5225)
[    9.786662][  T188]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.786847][  T188]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.787028][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.787227][  T188]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.787410][  T188]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.787600][  T188]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.787784][  T188]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.787965][  T188]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.788190][  T188]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[    9.788374][  T188]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.788566][  T188]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.788748][  T188]  ___sys_sendmsg (net/socket.c:2752)
[    9.788930][  T188]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.789158][  T188]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.789350][  T188]  __sys_sendmsg (net/socket.c:2784)
[    9.789543][  T188]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.789727][  T188]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.789947][  T188]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.790140][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.790322][  T188]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.790512][  T188]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.790695][  T188]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.790878][  T188]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.791092][  T188] RIP: 0033:0x7f5308d2408e
[    9.791293][  T188] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.791824][  T188] RSP: 002b:00007fff731adfb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.792073][  T188] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5308d2408e
[    9.792334][  T188] RDX: 0000000000000000 RSI: 00007fff731ae060 RDI: 0000000000000005
[    9.792586][  T188] RBP: 00007fff731adfc0 R08: 0000000000000000 R09: 0000000000000000
[    9.792832][  T188] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d3ec
[    9.793078][  T188] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff731ae730
| [    9.925825][  T192] ------------[ cut here ]------------
| [    9.926039][  T192] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/192
| [    9.926343][  T192] Modules linked in: nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [    9.926932][  T192] Tainted: [W]=WARN
[    9.927082][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.927309][  T192] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.927543][  T192] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.928067][  T192] RSP: 0018:ffa00000006d7ab0 EFLAGS: 00010286
[    9.928306][  T192] RAX: 00000000ffffffa6 RBX: ff1100000b39c040 RCX: 1ff40000000daf1c
[    9.928566][  T192] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b39c0fc
[    9.928814][  T192] RBP: ff1100000820c000 R08: 1fe2200001673821 R09: ff1100000c31aed0
[    9.929061][  T192] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.929319][  T192] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000820c000
[    9.929574][  T192] FS:  00007f8918bd9840(0000) GS:ff110000938ac000(0000) knlGS:0000000000000000
[    9.929859][  T192] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.930071][  T192] CR2: 00007f8918ddac20 CR3: 000000001694d003 CR4: 0000000000771ef0
[    9.930328][  T192] PKRU: 55555554
[    9.930485][  T192] Call Trace:
[    9.930635][  T192]  <TASK>
[    9.930752][  T192]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.930932][  T192]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.931115][  T192]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.931278][  T192]  register_netdevice (net/core/dev.c:11488)
[    9.931465][  T192]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.931679][  T192]  register_netdev (net/core/dev.c:11552)
[    9.931861][  T192]  loopback_net_init (drivers/net/loopback.c:218)
[    9.932041][  T192]  ops_init (net/core/net_namespace.c:137)
[    9.932206][  T192]  setup_net (net/core/net_namespace.c:446)
[    9.932357][  T192]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.932547][  T192]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.932730][  T192]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.932910][  T192]  copy_net_ns (net/core/net_namespace.c:579)
[    9.933091][  T192]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.933317][  T192]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.933505][  T192]  ksys_unshare (kernel/fork.c:3243)
[    9.933688][  T192]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.933867][  T192]  ? __ia32_sys_open (fs/open.c:1374)
[    9.934051][  T192]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.934263][  T192]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.934451][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.934630][  T192]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.934809][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.934988][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.935213][  T192] RIP: 0033:0x7f8918e9bbcb
[    9.935398][  T192] 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
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.935943][  T192] RSP: 002b:00007fff76f54a28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.936202][  T192] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f8918e9bbcb
[    9.936451][  T192] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.936693][  T192] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    9.936932][  T192] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff76f56c50
[    9.937187][  T192] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff76f58842
| [    9.969626][  T193] ------------[ cut here ]------------
| [    9.969796][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/193
| [    9.970033][  T193] Modules linked in: nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [    9.970624][  T193] Tainted: [W]=WARN
[    9.970728][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.970896][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.971076][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.971573][  T193] RSP: 0018:ffa00000006e7030 EFLAGS: 00010286
[    9.971745][  T193] RAX: 00000000ffffffa6 RBX: ff1100000c4b1000 RCX: 1ff40000000dcdcc
[    9.971947][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4b10bc
[    9.972157][  T193] RBP: ff1100000820c000 R08: 1fe2200001896219 R09: ff1100000c31d1e8
[    9.972357][  T193] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[    9.972563][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000820cce1
[    9.972763][  T193] FS:  00007f32bfbc5840(0000) GS:ff110000937ac000(0000) knlGS:0000000000000000
[    9.973001][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.973232][  T193] CR2: 0000000036e9f988 CR3: 000000000b241003 CR4: 0000000000771ef0
[    9.973441][  T193] PKRU: 55555554
[    9.973541][  T193] Call Trace:
[    9.973642][  T193]  <TASK>
[    9.973712][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.973849][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.973951][  T193]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.974087][  T193]  __dev_notify_flags (net/core/dev.c:9787)
[    9.974291][  T193]  ? netif_change_name (net/core/dev.c:1495)
[    9.974426][  T193]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.974562][  T193]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    9.974697][  T193]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.974836][  T193]  netif_change_flags (net/core/dev.c:9820)
[    9.974971][  T193]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.975107][  T193]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.975329][  T193]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.975503][  T193]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.975636][  T193]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.975770][  T193]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.975903][  T193]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.976041][  T193]  ? __kernel_text_address (kernel/extable.c:79)
[    9.976181][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.976319][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.976457][  T193]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.976593][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.976729][  T193]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.976863][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.976998][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.977139][  T193]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.977275][  T193]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.977411][  T193]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.977550][  T193]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.977686][  T193]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.977824][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.977962][  T193]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.978100][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.978239][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.978377][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.978515][  T193]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.978647][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.978784][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.978917][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.979052][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.979192][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.979328][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.979468][  T193]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.979604][  T193]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.979738][  T193]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.979871][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.980006][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.980147][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.980284][  T193]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.980428][  T193]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.980564][  T193]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.980701][  T193]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.980834][  T193]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.980972][  T193]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.981109][  T193]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.981252][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.981387][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:453 kernel/locking/lockdep.c:5225)
[    9.981528][  T193]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.981664][  T193]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.981797][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.981932][  T193]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.982069][  T193]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.982212][  T193]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.982349][  T193]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.982488][  T193]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.982654][  T193]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[    9.982790][  T193]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.982925][  T193]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.983062][  T193]  ___sys_sendmsg (net/socket.c:2752)
[    9.983201][  T193]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.983370][  T193]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.983522][  T193]  __sys_sendmsg (net/socket.c:2784)
[    9.983658][  T193]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.983792][  T193]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.983964][  T193]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.984098][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.984238][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.984372][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.984511][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.984646][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.984813][  T193] RIP: 0033:0x7f32bfdff08e
[    9.984955][  T193] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.985443][  T193] RSP: 002b:00007ffc3e3fa530 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.985646][  T193] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f32bfdff08e
[    9.985847][  T193] RDX: 0000000000000000 RSI: 00007ffc3e3fa5e0 RDI: 0000000000000005
[    9.986046][  T193] RBP: 00007ffc3e3fa540 R08: 0000000000000000 R09: 0000000000000000
[    9.986254][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d3ec
[    9.986459][  T193] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc3e3facb0
| [   51.745439][   T69] ------------[ cut here ]------------
| [   51.745654][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [   51.745913][   T69] Modules linked in: nf_conntrack_netlink nft_ct nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [   51.746556][   T69] Tainted: [W]=WARN
[   51.746652][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.746811][   T69] Workqueue: netns cleanup_net
[   51.746957][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.747163][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.747615][   T69] RSP: 0018:ffa00000004a7748 EFLAGS: 00010286
[   51.747775][   T69] RAX: 00000000ffffffa6 RBX: ff11000018613000 RCX: 1ff4000000094eaf
[   51.747965][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000186130bc
[   51.748169][   T69] RBP: ff11000008044000 R08: 1fe22000030c2619 R09: ff11000008acd260
[   51.748359][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   51.748551][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004a77e0
[   51.748738][   T69] FS:  0000000000000000(0000) GS:ff110000937ac000(0000) knlGS:0000000000000000
[   51.748958][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.749126][   T69] CR2: 00007f63f30b2888 CR3: 0000000010d39002 CR4: 0000000000771ef0
[   51.749314][   T69] PKRU: 55555554
[   51.749410][   T69] Call Trace:
[   51.749561][   T69]  <TASK>
[   51.749628][   T69]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.749761][   T69]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.749859][   T69]  netif_close_many (net/core/dev.c:1804)
[   51.749984][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.750112][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.750249][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.750380][   T69]  ? __dev_close_many (net/core/dev.c:1781)
[   51.750505][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   51.750661][   T69]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   51.750789][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   51.750945][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.751072][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.751203][   T69]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   51.751328][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.751485][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.751616][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.751743][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   51.751868][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.751996][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.752129][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.752256][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.752385][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.752515][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   51.752642][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.752770][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   51.752897][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.753020][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.753155][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.753280][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.753406][   T69]  process_one_work (kernel/workqueue.c:3314)
[   51.753538][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.753663][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.753793][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.753918][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.754042][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.754178][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.754305][   T69]  kthread (kernel/kthread.c:436)
[   51.754402][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.754575][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.754699][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.754826][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.754980][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.755106][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.755237][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.758259][   T69] ------------[ cut here ]------------
| [   51.758383][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [   51.758621][   T69] Modules linked in: nf_conntrack_netlink nft_ct nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [   51.759155][   T69] Tainted: [W]=WARN
[   51.759245][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.759394][   T69] Workqueue: netns cleanup_net
[   51.759525][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.759680][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.760104][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[   51.760270][   T69] RAX: 00000000ffffffa6 RBX: ff1100000b8c2580 RCX: 1ff4000000094ed5
[   51.760450][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8c263c
[   51.760632][   T69] RBP: ff11000008044000 R08: 1fe22000017184c9 R09: ff11000008acd260
[   51.760811][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   51.760990][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.761177][   T69] FS:  0000000000000000(0000) GS:ff110000937ac000(0000) knlGS:0000000000000000
[   51.761388][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.761541][   T69] CR2: 00007f63f30b2888 CR3: 0000000010d39002 CR4: 0000000000771ef0
[   51.761719][   T69] PKRU: 55555554
[   51.761809][   T69] Call Trace:
[   51.761900][   T69]  <TASK>
[   51.761972][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.762132][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.762285][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.762407][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.762531][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   51.762652][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.762772][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.762894][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.763024][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.763154][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.763279][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   51.763400][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.763526][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   51.763647][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.763767][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.763890][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.764010][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.764581][   T69]  process_one_work (kernel/workqueue.c:3314)
[   51.764707][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.764826][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.764951][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.765071][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.765246][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.765414][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.765543][   T69]  kthread (kernel/kthread.c:436)
[   51.765634][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.765784][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.765904][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.766025][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.766228][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.766348][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.766469][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.889432][   T69] ------------[ cut here ]------------
| [   51.889593][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/69
| [   51.889843][   T69] Modules linked in: nf_conntrack_netlink nft_ct nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [   51.890464][   T69] Tainted: [W]=WARN
[   51.890567][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.890728][   T69] Workqueue: netns cleanup_net
[   51.890858][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.891024][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.891484][   T69] RSP: 0018:ffa00000004a7748 EFLAGS: 00010286
[   51.891650][   T69] RAX: 00000000ffffffa6 RBX: ff11000018a0eac0 RCX: 1ff4000000094eaf
[   51.891838][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000018a0eb7c
[   51.892023][   T69] RBP: ff1100000820c000 R08: 1fe2200003141d71 R09: ff11000008acd260
[   51.892220][   T69] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   51.892408][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004a77e0
[   51.892602][   T69] FS:  0000000000000000(0000) GS:ff1100009392c000(0000) knlGS:0000000000000000
[   51.892821][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.892978][   T69] CR2: 00007f63f2eaa2a0 CR3: 0000000010d39005 CR4: 0000000000771ef0
[   51.893173][   T69] PKRU: 55555554
[   51.893267][   T69] Call Trace:
[   51.893361][   T69]  <TASK>
[   51.893427][   T69]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.893560][   T69]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.893656][   T69]  netif_close_many (net/core/dev.c:1804)
[   51.893781][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.893907][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.894031][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.894170][   T69]  ? __dev_close_many (net/core/dev.c:1781)
[   51.894295][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   51.894452][   T69]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   51.894582][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   51.894738][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.894862][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.894986][   T69]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   51.895111][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.895276][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.895404][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.895533][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   51.895657][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.895782][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.895909][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.896033][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.896165][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.896292][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   51.896416][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.896549][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   51.896675][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.896799][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.896927][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.897054][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.897188][   T69]  process_one_work (kernel/workqueue.c:3314)
[   51.897317][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.897442][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.897575][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.897701][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.897824][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.897952][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.898077][   T69]  kthread (kernel/kthread.c:436)
[   51.898177][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.898332][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.898457][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.898586][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.898746][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.898873][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.898998][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.901410][   T69] ------------[ cut here ]------------
| [   51.901540][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/69
| [   51.901777][   T69] Modules linked in: nf_conntrack_netlink nft_ct nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
| [   51.902301][   T69] Tainted: [W]=WARN
[   51.902394][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.902551][   T69] Workqueue: netns cleanup_net
[   51.902675][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.902831][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 88 e9 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 88 e9 f0 ff       	call   0xfffffffffff0e9c4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 88 e9 f0 ff       	call   0xfffffffffff0e99a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.903264][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[   51.903415][   T69] RAX: 00000000ffffffa6 RBX: ff1100001871cc80 RCX: 1ff4000000094ed5
[   51.903600][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001871cd3c
[   51.903777][   T69] RBP: ff1100000820c000 R08: 1fe22000030e39a9 R09: ff11000008acd260
[   51.903956][   T69] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.904145][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.904324][   T69] FS:  0000000000000000(0000) GS:ff1100009392c000(0000) knlGS:0000000000000000
[   51.904538][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.904688][   T69] CR2: 00007f63f2eaa2a0 CR3: 0000000010d39005 CR4: 0000000000771ef0
[   51.904871][   T69] PKRU: 55555554
[   51.904961][   T69] Call Trace:
[   51.905052][   T69]  <TASK>
[   51.905115][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.905274][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.905425][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.905551][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.905671][   T69]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   51.905791][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.905911][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.906031][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.906157][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.906279][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.906401][   T69]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   51.906523][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.906647][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   51.906767][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.906886][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.907007][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.907131][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.907252][   T69]  process_one_work (kernel/workqueue.c:3314)
[   51.907378][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.907500][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.907635][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.907758][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.907882][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.908004][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.908130][   T69]  kthread (kernel/kthread.c:436)
[   51.908220][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.908369][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.908491][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.908617][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.908765][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.908884][   T69]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink