======================================
| xx__-> [   10.800387][  T186] ------------[ cut here ]------------
| [   10.800607][  T186] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/186
| [   10.800879][  T186] Modules linked in: veth
| [   10.801335][  T186] Tainted: [W]=WARN
[   10.801442][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.801667][  T186] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.802047][  T186] 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 38 e4 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 38 e4 f0 ff       	call   0xfffffffffff0e474
  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 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.802568][  T186] RSP: 0018:ffa00000008a6e30 EFLAGS: 00010286
[   10.802748][  T186] RAX: 00000000ffffffa6 RBX: ff1100000c687a80 RCX: 1ff4000000114d8c
[   10.802978][  T186] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c687b38
[   10.803202][  T186] RBP: ff11000009be4000 R08: 1fe22000018d0f68 R09: ff1100000cb05180
[   10.803419][  T186] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   10.803627][  T186] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a114e80
[   10.803895][  T186] FS:  00007f762adc6840(0000) GS:ff11000088a30000(0000) knlGS:0000000000000000
[   10.804148][  T186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.804345][  T186] CR2: 000055cced24cd50 CR3: 000000000cb47004 CR4: 0000000000771ef0
[   10.804557][  T186] PKRU: 55555554
[   10.804662][  T186] Call Trace:
[   10.804880][  T186]  <TASK>
[   10.804959][  T186]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   10.805137][  T186]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.805285][  T186]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.805391][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.805535][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.805673][  T186]  __dev_notify_flags (net/core/dev.c:9787)
[   10.805817][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.805960][  T186]  ? netif_change_name (net/core/dev.c:1495)
[   10.806098][  T186]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[   10.806267][  T186]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[   10.806411][  T186]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   10.806548][  T186]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.806689][  T186]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   10.806833][  T186] veth_newlink (drivers/net/veth.c:1871) veth
[   10.806980][  T186]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   10.807152][  T186]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.807297][  T186]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.807436][  T186]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.807702][  T186]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   10.807845][  T186]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   10.807990][  T186]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   10.808127][  T186]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.808270][  T186]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   10.808411][  T186]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   10.808551][  T186]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.808689][  T186]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.808836][  T186]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.808983][  T186]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.809127][  T186]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.809273][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.809412][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.809551][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.809688][  T186]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.809828][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.809974][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.810114][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.810258][  T186]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.810400][  T186]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.810538][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.810676][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.810821][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.811155][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.811306][  T186]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.811446][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.811583][  T186]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.811723][  T186]  ? 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))
[   10.811863][  T186]  ? 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))
[   10.812095][  T186]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.812239][  T186]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.812380][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.812520][  T186]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.812658][  T186]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.812796][  T186]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.813065][  T186]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.813327][  T186]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.813465][  T186]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.813638][  T186]  ? move_addr_to_kernel (net/socket.c:258)
[   10.813780][  T186]  ___sys_sendmsg (net/socket.c:2752)
[   10.814035][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.814178][  T186]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.814342][  T186]  __sys_sendmsg (net/socket.c:2784)
[   10.814480][  T186]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.814619][  T186]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[   10.814759][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.815019][  T186]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   10.815161][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.815312][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.815452][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.815589][  T186]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.815729][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.815874][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.816163][  T186] RIP: 0033:0x7f762b00008e
[   10.816319][  T186] 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
[   10.816810][  T186] RSP: 002b:00007ffc0002f5d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.817123][  T186] RAX: ffffffffffffffda RBX: 00007ffc0002fd68 RCX: 00007f762b00008e
[   10.817341][  T186] RDX: 0000000000000000 RSI: 00007ffc0002f680 RDI: 0000000000000005
[   10.817546][  T186] RBP: 00007ffc0002f5e0 R08: 0000000000000000 R09: 0000000000000000
[   10.817753][  T186] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c91c
[   10.818021][  T186] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc0002fd40
| [   10.841102][  T186] ------------[ cut here ]------------
| [   10.841268][  T186] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/186
| [   10.841511][  T186] Modules linked in: veth
| [   10.841906][  T186] Tainted: [W]=WARN
[   10.842010][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.842180][  T186] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.842367][  T186] 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 38 e4 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 38 e4 f0 ff       	call   0xfffffffffff0e474
  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 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.842854][  T186] RSP: 0018:ffa00000008a71b0 EFLAGS: 00010286
[   10.843034][  T186] RAX: 00000000ffffffa6 RBX: ff11000009a2fa80 RCX: 1ff4000000114dfc
[   10.843245][  T186] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009a2fb38
[   10.843448][  T186] RBP: ff11000008301000 R08: 1fe2200001345f68 R09: ff1100000cb05180
[   10.843668][  T186] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   10.843876][  T186] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   10.844088][  T186] FS:  00007f762adc6840(0000) GS:ff11000088a30000(0000) knlGS:0000000000000000
[   10.844335][  T186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.844506][  T186] CR2: 000055cced24cd50 CR3: 000000000cb47004 CR4: 0000000000771ef0
[   10.844708][  T186] PKRU: 55555554
[   10.844815][  T186] Call Trace:
[   10.844930][  T186]  <TASK>
[   10.845001][  T186]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.845141][  T186]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.845252][  T186]  __dev_notify_flags (net/core/dev.c:9787)
[   10.845391][  T186]  ? netif_change_name (net/core/dev.c:1495)
[   10.845530][  T186]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   10.845668][  T186]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.845810][  T186]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   10.845955][  T186]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   10.846093][  T186]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.846234][  T186]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.846369][  T186]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.846510][  T186]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.846650][  T186]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.846787][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.846931][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.847068][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.847208][  T186]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.847342][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.847479][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.847614][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.847749][  T186]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.847891][  T186]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.848025][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.848160][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.848303][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.848439][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.848576][  T186]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.848712][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.848852][  T186]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.848998][  T186]  ? 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))
[   10.849137][  T186]  ? 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))
[   10.849280][  T186]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.849417][  T186]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.849553][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.849692][  T186]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.849839][  T186]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.849983][  T186]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.850124][  T186]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.850268][  T186]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.850406][  T186]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.850574][  T186]  ? move_addr_to_kernel (net/socket.c:258)
[   10.850715][  T186]  ___sys_sendmsg (net/socket.c:2752)
[   10.850854][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.850994][  T186]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.851146][  T186]  __sys_sendmsg (net/socket.c:2784)
[   10.851293][  T186]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.851431][  T186]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[   10.851567][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.851706][  T186]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   10.851850][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.851992][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.852130][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.852271][  T186]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.852412][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.852550][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.852722][  T186] RIP: 0033:0x7f762b00008e
[   10.852870][  T186] 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
[   10.853462][  T186] RSP: 002b:00007ffc0002f5d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.853686][  T186] RAX: ffffffffffffffda RBX: 00007ffc0002fd68 RCX: 00007f762b00008e
[   10.853921][  T186] RDX: 0000000000000000 RSI: 00007ffc0002f680 RDI: 0000000000000005
[   10.854133][  T186] RBP: 00007ffc0002f5e0 R08: 0000000000000000 R09: 0000000000000000
[   10.854347][  T186] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c91c
[   10.854549][  T186] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc0002fd40
| [   11.002409][  T192] ------------[ cut here ]------------
| [   11.002589][  T192] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/192
| [   11.002852][  T192] Modules linked in: veth
| [   11.003333][  T192] Tainted: [W]=WARN
[   11.003440][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.003616][  T192] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.003801][  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 38 e4 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 38 e4 f0 ff       	call   0xfffffffffff0e474
  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 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.004335][  T192] RSP: 0018:ffa00000005c6e30 EFLAGS: 00010286
[   11.004564][  T192] RAX: 00000000ffffffa6 RBX: ff1100000af1ec80 RCX: 1ff40000000b8d8c
[   11.004795][  T192] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000af1ed38
[   11.005029][  T192] RBP: ff110000079a9000 R08: 1fe22000015e3da8 R09: ff1100000caf2e80
[   11.005245][  T192] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.005463][  T192] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000091bb500
[   11.005671][  T192] FS:  00007fcfce2dc840(0000) GS:ff11000088a30000(0000) knlGS:0000000000000000
[   11.005928][  T192] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.006103][  T192] CR2: 000000000042ebe0 CR3: 000000000b1f3003 CR4: 0000000000771ef0
[   11.006315][  T192] PKRU: 55555554
[   11.006421][  T192] Call Trace:
[   11.006531][  T192]  <TASK>
[   11.006603][  T192]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.006746][  T192]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.006854][  T192]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   11.007034][  T192]  __dev_notify_flags (net/core/dev.c:9787)
[   11.007176][  T192]  ? netif_change_name (net/core/dev.c:1495)
[   11.007324][  T192]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   11.007466][  T192]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[   11.007638][  T192]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.007784][  T192]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.007939][  T192]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   11.008083][  T192] veth_newlink (drivers/net/veth.c:1871) veth
[   11.008231][  T192]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   11.008404][  T192]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.008545][  T192]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.008683][  T192]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.008840][  T192]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   11.008985][  T192]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   11.009127][  T192]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.009269][  T192]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.009410][  T192]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   11.009552][  T192]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.009691][  T192]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.009843][  T192]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.009987][  T192]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.010131][  T192]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.010277][  T192]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.010419][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.010558][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.010697][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.010840][  T192]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.010984][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.011128][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.011272][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.011412][  T192]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.011550][  T192]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.011689][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.011833][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.011978][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.012117][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.012262][  T192]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.012402][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.012541][  T192]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.012683][  T192]  ? 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))
[   11.012825][  T192]  ? 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))
[   11.012970][  T192]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.013111][  T192]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.013259][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.013399][  T192]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.013538][  T192]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.013677][  T192]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.013828][  T192]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.013973][  T192]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.014113][  T192]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.014295][  T192]  ? move_addr_to_kernel (net/socket.c:258)
[   11.014439][  T192]  ___sys_sendmsg (net/socket.c:2752)
[   11.014578][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.014718][  T192]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.014870][  T192]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.015018][  T192]  __sys_sendmsg (net/socket.c:2784)
[   11.015157][  T192]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.015307][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.015448][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.015589][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.015728][  T192]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.015872][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.016017][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.016191][  T192] RIP: 0033:0x7fcfce51608e
[   11.016345][  T192] 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
[   11.016841][  T192] RSP: 002b:00007ffc9d824050 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.017061][  T192] RAX: ffffffffffffffda RBX: 00007ffc9d8247e8 RCX: 00007fcfce51608e
[   11.017278][  T192] RDX: 0000000000000000 RSI: 00007ffc9d824100 RDI: 0000000000000005
[   11.017489][  T192] RBP: 00007ffc9d824060 R08: 0000000000000000 R09: 0000000000000000
[   11.017698][  T192] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c91d
[   11.017924][  T192] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc9d8247c0
| [   11.030072][  T192] ------------[ cut here ]------------
| [   11.030285][  T192] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/192
| [   11.030541][  T192] Modules linked in: veth
| [   11.030946][  T192] Tainted: [W]=WARN
[   11.031055][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.031236][  T192] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.031417][  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 38 e4 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 38 e4 f0 ff       	call   0xfffffffffff0e474
  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 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.031917][  T192] RSP: 0018:ffa00000005c71b0 EFLAGS: 00010286
[   11.032091][  T192] RAX: 00000000ffffffa6 RBX: ff1100000d5fc900 RCX: 1ff40000000b8dfc
[   11.032303][  T192] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d5fc9b8
[   11.032506][  T192] RBP: ff110000096ac000 R08: 1fe2200001abf938 R09: ff1100000caf2e80
[   11.032709][  T192] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.032935][  T192] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.033141][  T192] FS:  00007fcfce2dc840(0000) GS:ff11000088a30000(0000) knlGS:0000000000000000
[   11.033386][  T192] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.033557][  T192] CR2: 000000000042ebe0 CR3: 000000000b1f3003 CR4: 0000000000771ef0
[   11.033764][  T192] PKRU: 55555554
[   11.033871][  T192] Call Trace:
[   11.033979][  T192]  <TASK>
[   11.034050][  T192]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.034190][  T192]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.034302][  T192]  __dev_notify_flags (net/core/dev.c:9787)
[   11.034441][  T192]  ? netif_change_name (net/core/dev.c:1495)
[   11.034580][  T192]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.034717][  T192]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.034861][  T192]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.035003][  T192]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.035141][  T192]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.035281][  T192]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.035432][  T192]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.035576][  T192]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.035716][  T192]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.035857][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.035999][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.036138][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.036282][  T192]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.036417][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.036558][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.036697][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.036845][  T192]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.037095][  T192]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.037348][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.037488][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.037627][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.037762][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.037996][  T192]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.038138][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.038281][  T192]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.038423][  T192]  ? 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))
[   11.038558][  T192]  ? 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))
[   11.038696][  T192]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.038839][  T192]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.038981][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.039121][  T192]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.039266][  T192]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.039409][  T192]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.039548][  T192]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.039687][  T192]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.039832][  T192]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.040014][  T192]  ? move_addr_to_kernel (net/socket.c:258)
[   11.040156][  T192]  ___sys_sendmsg (net/socket.c:2752)
[   11.040301][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.040439][  T192]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.040584][  T192]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.040723][  T192]  __sys_sendmsg (net/socket.c:2784)
[   11.040864][  T192]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.041009][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.041148][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.041295][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.041431][  T192]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.041570][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.041721][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.041900][  T192] RIP: 0033:0x7fcfce51608e
[   11.042042][  T192] 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
[   11.042535][  T192] RSP: 002b:00007ffc9d824050 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.042742][  T192] RAX: ffffffffffffffda RBX: 00007ffc9d8247e8 RCX: 00007fcfce51608e
[   11.042955][  T192] RDX: 0000000000000000 RSI: 00007ffc9d824100 RDI: 0000000000000005
[   11.043159][  T192] RBP: 00007ffc9d824060 R08: 0000000000000000 R09: 0000000000000000
[   11.043371][  T192] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c91d
[   11.043576][  T192] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc9d8247c0
| [   11.277413][  T210] ------------[ cut here ]------------
| [   11.277638][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/210
| [   11.277964][  T210] Modules linked in: veth
| [   11.278468][  T210] Tainted: [W]=WARN
[   11.278623][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.278870][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.279123][  T210] 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 38 e4 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 38 e4 f0 ff       	call   0xfffffffffff0e474
  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 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.279677][  T210] RSP: 0018:ffa0000000656e30 EFLAGS: 00010286
[   11.279925][  T210] RAX: 00000000ffffffa6 RBX: ff1100000af1f1c0 RCX: 1ff40000000cad8c
[   11.280189][  T210] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000af1f278
[   11.280456][  T210] RBP: ff1100000cbd9000 R08: 1fe22000015e3e50 R09: ff1100000c26ae80
[   11.280714][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.280996][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000095b5580
[   11.281270][  T210] FS:  00007fab7c793840(0000) GS:ff11000088ab0000(0000) knlGS:0000000000000000
[   11.281569][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.281796][  T210] CR2: 000000000042ebe0 CR3: 0000000008d50004 CR4: 0000000000771ef0
[   11.282079][  T210] PKRU: 55555554
[   11.282241][  T210] Call Trace:
[   11.282401][  T210]  <TASK>
[   11.282522][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.282711][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.282925][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.283080][  T210]  ? ref_tracker_alloc (./include/linux/spinlock.h:408 (discriminator 3) lib/ref_tracker.c:281 (discriminator 3))
[   11.283276][  T210]  __dev_notify_flags (net/core/dev.c:9787)
[   11.283467][  T210]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[   11.283652][  T210]  ? linkwatch_fire_event (./include/linux/netdevice.h:4482 ./include/linux/netdevice.h:4511 net/core/link_watch.c:131 net/core/link_watch.c:324)
[   11.283844][  T210]  ? netif_change_name (net/core/dev.c:1495)
[   11.284044][  T210]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.284243][  T210]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.284432][  T210]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.284622][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.284813][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.285020][  T210]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.285216][  T210]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.285402][  T210]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.285589][  T210]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   11.285778][  T210] veth_newlink (drivers/net/veth.c:1871) veth
[   11.285986][  T210]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   11.286215][  T210]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.286404][  T210]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.286591][  T210]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.286792][  T210]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   11.287002][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   11.287190][  T210]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.287385][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.287575][  T210]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   11.287763][  T210]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.287976][  T210]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.288161][  T210]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.288357][  T210]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.288547][  T210]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.288737][  T210]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.288946][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.289133][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.289328][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.289514][  T210]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.289701][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.289916][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.290105][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.290299][  T210]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.290488][  T210]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.290672][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.290866][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.291067][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.291261][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.291450][  T210]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.291634][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.291828][  T210]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.292035][  T210]  ? 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))
[   11.292231][  T210]  ? 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))
[   11.292424][  T210]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.292613][  T210]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.292799][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.293009][  T210]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.293199][  T210]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.293398][  T210]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.293587][  T210]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.293774][  T210]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.293980][  T210]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.294200][  T210]  ? move_addr_to_kernel (net/socket.c:258)
[   11.294401][  T210]  ___sys_sendmsg (net/socket.c:2752)
[   11.294585][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.294773][  T210]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.294986][  T210]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.295180][  T210]  __sys_sendmsg (net/socket.c:2784)
[   11.295377][  T210]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.295569][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.295754][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.295963][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.296149][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.296346][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.296534][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.296751][  T210] RIP: 0033:0x7fab7c9cd08e
[   11.296978][  T210] 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
[   11.297533][  T210] RSP: 002b:00007ffc02feca70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.297790][  T210] RAX: ffffffffffffffda RBX: 00007ffc02fed208 RCX: 00007fab7c9cd08e
[   11.298066][  T210] RDX: 0000000000000000 RSI: 00007ffc02fecb20 RDI: 0000000000000005
[   11.298330][  T210] RBP: 00007ffc02feca80 R08: 0000000000000000 R09: 0000000000000000
[   11.298584][  T210] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c91d
[   11.298844][  T210] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc02fed1e0
| [   11.308681][  T210] ------------[ cut here ]------------
| [   11.308874][  T210] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/210
| [   11.309177][  T210] Modules linked in: veth
| [   11.309684][  T210] Tainted: [W]=WARN
[   11.309855][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.310154][  T210] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.310458][  T210] 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 38 e4 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 38 e4 f0 ff       	call   0xfffffffffff0e474
  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 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   11.311100][  T210] RSP: 0018:ffa00000006571b0 EFLAGS: 00010286
[   11.311441][  T210] RAX: 00000000ffffffa6 RBX: ff1100000c550740 RCX: 1ff40000000cadfc
[   11.311796][  T210] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c5507f8
[   11.312137][  T210] RBP: ff11000007fa9000 R08: 1fe22000018aa100 R09: ff1100000c26ae80
[   11.312402][  T210] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.312654][  T210] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.312932][  T210] FS:  00007fab7c793840(0000) GS:ff11000088ab0000(0000) knlGS:0000000000000000
[   11.313231][  T210] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.313451][  T210] CR2: 000000000042ebe0 CR3: 0000000008d50004 CR4: 0000000000771ef0
[   11.313705][  T210] PKRU: 55555554
[   11.313865][  T210] Call Trace:
[   11.314027][  T210]  <TASK>
[   11.314147][  T210]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.314347][  T210]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.314500][  T210]  __dev_notify_flags (net/core/dev.c:9787)
[   11.314685][  T210]  ? netif_change_name (net/core/dev.c:1495)
[   11.314899][  T210]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.315085][  T210]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.315279][  T210]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.315465][  T210]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.315649][  T210]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.315838][  T210]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.316038][  T210]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.316238][  T210]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.316432][  T210]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.316617][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.316803][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.317012][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.317195][  T210]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.317395][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.317584][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.317777][  T210]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.317982][  T210]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.318170][  T210]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.318365][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.318547][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.318731][  T210]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.318935][  T210]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.319132][  T210]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.319326][  T210]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.319514][  T210]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.319700][  T210]  ? 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))
[   11.319905][  T210]  ? 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))
[   11.320091][  T210]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.320288][  T210]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.320471][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.320662][  T210]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.320855][  T210]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.321053][  T210]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.321247][  T210]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.321434][  T210]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.321618][  T210]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.321835][  T210]  ? move_addr_to_kernel (net/socket.c:258)
[   11.322043][  T210]  ___sys_sendmsg (net/socket.c:2752)
[   11.322246][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.322434][  T210]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.322626][  T210]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   11.322814][  T210]  __sys_sendmsg (net/socket.c:2784)
[   11.323017][  T210]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.323212][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.323401][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.323585][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.323766][  T210]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.323971][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.324155][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.324376][  T210] RIP: 0033:0x7fab7c9cd08e
[   11.324564][  T210] 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
[   11.325109][  T210] RSP: 002b:00007ffc02feca70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.325370][  T210] RAX: ffffffffffffffda RBX: 00007ffc02fed208 RCX: 00007fab7c9cd08e
[   11.325616][  T210] RDX: 0000000000000000 RSI: 00007ffc02fecb20 RDI: 0000000000000005
[   11.325875][  T210] RBP: 00007ffc02feca80 R08: 0000000000000000 R09: 0000000000000000
[   11.326133][  T210] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c91d


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink