======================================
| xx__-> [   11.001440][  T185] ------------[ cut here ]------------
| [   11.001730][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/185
| [   11.002043][  T185] Modules linked in: veth
| [   11.004035][  T185] Tainted: [W]=WARN
[   11.004354][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.004720][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.005111][  T185] 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
[   11.006041][  T185] RSP: 0018:ffa0000000986e30 EFLAGS: 00010286
[   11.006573][  T185] RAX: 00000000ffffffa6 RBX: ff1100000525a200 RCX: 1ff4000000130d8c
[   11.007153][  T185] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000525a2b8
[   11.007714][  T185] RBP: ff110000096c9000 R08: 1fe2200000a4b458 R09: ff1100000d540b80
[   11.008208][  T185] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.009009][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009410b00
[   11.009493][  T185] FS:  00007f37e204e840(0000) GS:ff1100009e4b0000(0000) knlGS:0000000000000000
[   11.010057][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.010476][  T185] CR2: 0000563e907c9ce0 CR3: 000000000c475003 CR4: 0000000000771ef0
[   11.010998][  T185] PKRU: 55555554
[   11.011437][  T185] Call Trace:
[   11.011848][  T185]  <TASK>
[   11.012126][  T185]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   11.012556][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.012919][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.013321][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.013647][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.013957][  T185]  __dev_notify_flags (net/core/dev.c:9787)
[   11.014191][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.014633][  T185]  ? netif_change_name (net/core/dev.c:1495)
[   11.014832][  T185]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[   11.015026][  T185]  ? preempt_schedule_notrace_thunk (arch/x86/entry/thunk.S:13)
[   11.015279][  T185]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:649 ./include/linux/cpumask.h:1231 ./include/trace/events/preemptirq.h:40)
[   11.015512][  T185]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.015709][  T185]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.015907][  T185]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   11.016112][  T185] veth_newlink (drivers/net/veth.c:1871) veth
[   11.016340][  T185]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   11.016584][  T185]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.016861][  T185]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.017092][  T185]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.017419][  T185]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   11.017695][  T185]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   11.018020][  T185]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.018310][  T185]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.018530][  T185]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   11.018733][  T185]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.018997][  T185]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.019233][  T185]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.019473][  T185]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.019723][  T185]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.020009][  T185]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.020286][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.020527][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.020723][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.020990][  T185]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.021282][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.021538][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.021806][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.022008][  T185]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.022231][  T185]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.022426][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.022616][  T185]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.022868][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.023146][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.023468][  T185]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.023760][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.024012][  T185]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.024241][  T185]  ? 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))
[   11.024438][  T185]  ? 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))
[   11.024634][  T185]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.024844][  T185]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.025041][  T185]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.025335][  T185]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.025575][  T185]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.025829][  T185]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.026099][  T185]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.026358][  T185]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.026625][  T185]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.026856][  T185]  ? move_addr_to_kernel (net/socket.c:258)
[   11.027100][  T185]  ___sys_sendmsg (net/socket.c:2752)
[   11.027340][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.027581][  T185]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.027856][  T185]  __sys_sendmsg (net/socket.c:2784)
[   11.028052][  T185]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.028265][  T185]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[   11.028456][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.028701][  T185]  ? 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)
[   11.028925][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.029119][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.029365][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.029563][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.029765][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.029958][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.030195][  T185] RIP: 0033:0x7f37e228808e
[   11.030412][  T185] 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
[   11.030964][  T185] RSP: 002b:00007fff8675b8f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.031255][  T185] RAX: ffffffffffffffda RBX: 00007fff8675c088 RCX: 00007f37e228808e
[   11.031516][  T185] RDX: 0000000000000000 RSI: 00007fff8675b9a0 RDI: 0000000000000005
[   11.031779][  T185] RBP: 00007fff8675b900 R08: 0000000000000000 R09: 0000000000000000
[   11.032038][  T185] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[   11.032344][  T185] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff8675c060
| [   11.046138][  T185] ------------[ cut here ]------------
| [   11.046366][  T185] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/185
| [   11.046620][  T185] Modules linked in: veth
| [   11.047104][  T185] Tainted: [W]=WARN
[   11.047226][  T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.047410][  T185] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.047603][  T185] 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
[   11.048123][  T185] RSP: 0018:ffa00000009871b0 EFLAGS: 00010286
[   11.048319][  T185] RAX: 00000000ffffffa6 RBX: ff1100000d3dc580 RCX: 1ff4000000130dfc
[   11.048531][  T185] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d3dc638
[   11.048742][  T185] RBP: ff11000008541000 R08: 1fe2200001a7b8c8 R09: ff1100000d540b80
[   11.048953][  T185] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.049178][  T185] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.049397][  T185] FS:  00007f37e204e840(0000) GS:ff1100009e430000(0000) knlGS:0000000000000000
[   11.049654][  T185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.049839][  T185] CR2: 0000563e907c9ce0 CR3: 000000000c475001 CR4: 0000000000771ef0
[   11.050066][  T185] PKRU: 55555554
[   11.050176][  T185] Call Trace:
[   11.050293][  T185]  <TASK>
[   11.050367][  T185]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.050511][  T185]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.050618][  T185]  __dev_notify_flags (net/core/dev.c:9787)
[   11.050760][  T185]  ? netif_change_name (net/core/dev.c:1495)
[   11.050904][  T185]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.051057][  T185]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.051207][  T185]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.051359][  T185]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.051501][  T185]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.051641][  T185]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.051779][  T185]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.051923][  T185]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.052065][  T185]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.052213][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.052362][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.052506][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.052650][  T185]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.052794][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.052942][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.053091][  T185]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.053246][  T185]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.053389][  T185]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.053530][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.053669][  T185]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.053812][  T185]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.053951][  T185]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.054094][  T185]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.054308][  T185]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.054449][  T185]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.054597][  T185]  ? 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))
[   11.054737][  T185]  ? 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))
[   11.054879][  T185]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.055079][  T185]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.055404][  T185]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.055626][  T185]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.055841][  T185]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.056011][  T185]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.056168][  T185]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.056383][  T185]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.056524][  T185]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.056696][  T185]  ? move_addr_to_kernel (net/socket.c:258)
[   11.056840][  T185]  ___sys_sendmsg (net/socket.c:2752)
[   11.056980][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.057121][  T185]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.057349][  T185]  __sys_sendmsg (net/socket.c:2784)
[   11.057490][  T185]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.057629][  T185]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[   11.057771][  T185]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.057913][  T185]  ? 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)
[   11.058066][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.058212][  T185]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.058519][  T185]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.058737][  T185]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.058894][  T185]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.059037][  T185]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.059291][  T185] RIP: 0033:0x7f37e228808e
[   11.059442][  T185] 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
[   11.059959][  T185] RSP: 002b:00007fff8675b8f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.060182][  T185] RAX: ffffffffffffffda RBX: 00007fff8675c088 RCX: 00007f37e228808e
[   11.060494][  T185] RDX: 0000000000000000 RSI: 00007fff8675b9a0 RDI: 0000000000000005
[   11.060704][  T185] RBP: 00007fff8675b900 R08: 0000000000000000 R09: 0000000000000000
[   11.060911][  T185] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[   11.061139][  T185] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff8675c060
| [   11.253993][  T191] ------------[ cut here ]------------
| [   11.254299][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/191
| [   11.254703][  T191] Modules linked in: veth
| [   11.255388][  T191] Tainted: [W]=WARN
[   11.255572][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.255858][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.256190][  T191] 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
[   11.257018][  T191] RSP: 0018:ffa0000000986e30 EFLAGS: 00010286
[   11.257320][  T191] RAX: 00000000ffffffa6 RBX: ff1100000b53fc40 RCX: 1ff4000000130d8c
[   11.257666][  T191] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b53fcf8
[   11.257955][  T191] RBP: ff11000007fd9000 R08: 1fe22000016a7fa0 R09: ff110000025d0b80
[   11.258419][  T191] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.258763][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b487c00
[   11.259111][  T191] FS:  00007f8a05949840(0000) GS:ff1100009e530000(0000) knlGS:0000000000000000
[   11.259572][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.259873][  T191] CR2: 00007f8a05cb0f6d CR3: 000000000c54a003 CR4: 0000000000771ef0
[   11.260232][  T191] PKRU: 55555554
[   11.260405][  T191] Call Trace:
[   11.260577][  T191]  <TASK>
[   11.260698][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.261376][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.261549][  T191]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   11.261835][  T191]  __dev_notify_flags (net/core/dev.c:9787)
[   11.262069][  T191]  ? netif_change_name (net/core/dev.c:1495)
[   11.262311][  T191]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.262536][  T191]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.262754][  T191]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.262982][  T191]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   11.263226][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.263454][  T191]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.263680][  T191]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.263905][  T191]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.264128][  T191]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   11.264365][  T191] veth_newlink (drivers/net/veth.c:1871) veth
[   11.264590][  T191]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   11.264868][  T191]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.265095][  T191]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.265337][  T191]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.265597][  T191]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   11.265822][  T191]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   11.266052][  T191]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.266303][  T191]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.266536][  T191]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   11.266765][  T191]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.266998][  T191]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.267235][  T191]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.267454][  T191]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.267697][  T191]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.267935][  T191]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.268176][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.268411][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.268636][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.268864][  T191]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.269090][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.269335][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.269564][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.269791][  T191]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.270016][  T191]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.270252][  T191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.270483][  T191]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.270721][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.270940][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.271171][  T191]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.271410][  T191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.271636][  T191]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.271869][  T191]  ? 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))
[   11.272093][  T191]  ? 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))
[   11.272337][  T191]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.272564][  T191]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.272805][  T191]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.273054][  T191]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.273296][  T191]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.273531][  T191]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.273760][  T191]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.273985][  T191]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.274227][  T191]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.274513][  T191]  ? move_addr_to_kernel (net/socket.c:258)
[   11.274749][  T191]  ___sys_sendmsg (net/socket.c:2752)
[   11.274971][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.275201][  T191]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.275457][  T191]  ? 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))
[   11.275695][  T191]  __sys_sendmsg (net/socket.c:2784)
[   11.275929][  T191]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.276172][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.276420][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.276656][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.276882][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.277108][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.277351][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.277629][  T191] RIP: 0033:0x7f8a05b8308e
[   11.277875][  T191] 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
[   11.278709][  T191] RSP: 002b:00007ffe39d5df60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.279052][  T191] RAX: ffffffffffffffda RBX: 00007ffe39d5e6f8 RCX: 00007f8a05b8308e
[   11.279407][  T191] RDX: 0000000000000000 RSI: 00007ffe39d5e010 RDI: 0000000000000005
[   11.279753][  T191] RBP: 00007ffe39d5df70 R08: 0000000000000000 R09: 0000000000000000
[   11.280093][  T191] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[   11.280450][  T191] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe39d5e6d0
| [   11.310836][  T191] ------------[ cut here ]------------
| [   11.311108][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/191
| [   11.312134][  T191] Modules linked in: veth
| [   11.313006][  T191] Tainted: [W]=WARN
[   11.313178][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.313465][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.313762][  T191] 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
[   11.314569][  T191] RSP: 0018:ffa00000009871b0 EFLAGS: 00010286
[   11.314858][  T191] RAX: 00000000ffffffa6 RBX: ff110000050d6200 RCX: 1ff4000000130dfc
[   11.315196][  T191] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000050d62b8
[   11.315537][  T191] RBP: ff110000058f1000 R08: 1fe2200000a1ac58 R09: ff110000025d0b80
[   11.315872][  T191] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.316216][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.316557][  T191] FS:  00007f8a05949840(0000) GS:ff1100009e530000(0000) knlGS:0000000000000000
[   11.316940][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.317233][  T191] CR2: 00007f8a05cb0f6d CR3: 000000000c54a003 CR4: 0000000000771ef0
[   11.317572][  T191] PKRU: 55555554
[   11.317750][  T191] Call Trace:
[   11.317918][  T191]  <TASK>
[   11.318035][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.318282][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.318456][  T191]  __dev_notify_flags (net/core/dev.c:9787)
[   11.318678][  T191]  ? netif_change_name (net/core/dev.c:1495)
[   11.318902][  T191]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.319123][  T191]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.319369][  T191]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.319598][  T191]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.319965][  T191]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.320194][  T191]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.320421][  T191]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.320655][  T191]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.320887][  T191]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.321117][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.321360][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.321582][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.321806][  T191]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.322028][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.322276][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.322499][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.322727][  T191]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.322965][  T191]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.323197][  T191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.323416][  T191]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.323645][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.323869][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.324098][  T191]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.324334][  T191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.324561][  T191]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.324797][  T191]  ? 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))
[   11.325014][  T191]  ? 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))
[   11.325244][  T191]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.325464][  T191]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.325687][  T191]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.325910][  T191]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.326131][  T191]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.326365][  T191]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.326599][  T191]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.326821][  T191]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.327041][  T191]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.327329][  T191]  ? move_addr_to_kernel (net/socket.c:258)
[   11.327560][  T191]  ___sys_sendmsg (net/socket.c:2752)
[   11.327777][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.327993][  T191]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.328247][  T191]  ? 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))
[   11.328477][  T191]  __sys_sendmsg (net/socket.c:2784)
[   11.328700][  T191]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.328930][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.329155][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.329395][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.329621][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.329847][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.330072][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.330361][  T191] RIP: 0033:0x7f8a05b8308e
[   11.330578][  T191] 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
[   11.331383][  T191] RSP: 002b:00007ffe39d5df60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.331725][  T191] RAX: ffffffffffffffda RBX: 00007ffe39d5e6f8 RCX: 00007f8a05b8308e
[   11.332055][  T191] RDX: 0000000000000000 RSI: 00007ffe39d5e010 RDI: 0000000000000005
[   11.332398][  T191] RBP: 00007ffe39d5df70 R08: 0000000000000000 R09: 0000000000000000
[   11.332731][  T191] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[   11.333064][  T191] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe39d5e6d0
| [   11.643507][  T207] ------------[ cut here ]------------
| [   11.643719][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/207
| [   11.643979][  T207] Modules linked in: veth
| [   11.644411][  T207] Tainted: [W]=WARN
[   11.644521][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.644705][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.644895][  T207] 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
[   11.645455][  T207] RSP: 0018:ffa0000000906e30 EFLAGS: 00010286
[   11.645657][  T207] RAX: 00000000ffffffa6 RBX: ff1100000525b540 RCX: 1ff4000000120d8c
[   11.645875][  T207] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000525b5f8
[   11.646091][  T207] RBP: ff1100000b751000 R08: 1fe2200000a4b6c0 R09: ff1100000c77d180
[   11.646318][  T207] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.646532][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d0cd200
[   11.646749][  T207] FS:  00007fa82f680840(0000) GS:ff1100009e430000(0000) knlGS:0000000000000000
[   11.647024][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.647209][  T207] CR2: 000000000042ebe0 CR3: 0000000004f9f005 CR4: 0000000000771ef0
[   11.647433][  T207] PKRU: 55555554
[   11.647542][  T207] Call Trace:
[   11.647649][  T207]  <TASK>
[   11.647724][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.647872][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.648020][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.648129][  T207]  ? ref_tracker_alloc (./include/linux/spinlock.h:408 (discriminator 3) lib/ref_tracker.c:281 (discriminator 3))
[   11.648281][  T207]  __dev_notify_flags (net/core/dev.c:9787)
[   11.648448][  T207]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[   11.648593][  T207]  ? 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)
[   11.648738][  T207]  ? netif_change_name (net/core/dev.c:1495)
[   11.648883][  T207]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.649026][  T207]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.649170][  T207]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.649319][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.649463][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.649608][  T207]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.649760][  T207]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.649904][  T207]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.650063][  T207]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   11.650223][  T207] veth_newlink (drivers/net/veth.c:1871) veth
[   11.650370][  T207]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   11.650558][  T207]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.650703][  T207]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.650847][  T207]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.651008][  T207]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   11.651152][  T207]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   11.651305][  T207]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.651449][  T207]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.651596][  T207]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   11.651743][  T207]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.651889][  T207]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.652033][  T207]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.652184][  T207]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.652358][  T207]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.652508][  T207]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.652654][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.652801][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.652950][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.653093][  T207]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.653246][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.653394][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.653539][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.653686][  T207]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.653832][  T207]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.653974][  T207]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.654121][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.654277][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.654419][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.654564][  T207]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.654708][  T207]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.654854][  T207]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.655004][  T207]  ? 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))
[   11.655156][  T207]  ? 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))
[   11.655313][  T207]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.655458][  T207]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.655605][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.655749][  T207]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.655895][  T207]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.656041][  T207]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.656195][  T207]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.656350][  T207]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.656493][  T207]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.656673][  T207]  ? move_addr_to_kernel (net/socket.c:258)
[   11.656822][  T207]  ___sys_sendmsg (net/socket.c:2752)
[   11.656964][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.657107][  T207]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.657271][  T207]  ? 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))
[   11.657420][  T207]  __sys_sendmsg (net/socket.c:2784)
[   11.657567][  T207]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.657717][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.657864][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.658009][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.658153][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.658306][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.658451][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.658635][  T207] RIP: 0033:0x7fa82f8ba08e
[   11.658788][  T207] 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
[   11.659340][  T207] RSP: 002b:00007ffe0c78d4b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.659565][  T207] RAX: ffffffffffffffda RBX: 00007ffe0c78dc48 RCX: 00007fa82f8ba08e
[   11.659790][  T207] RDX: 0000000000000000 RSI: 00007ffe0c78d560 RDI: 0000000000000005
[   11.660009][  T207] RBP: 00007ffe0c78d4c0 R08: 0000000000000000 R09: 0000000000000000
[   11.660231][  T207] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdd
[   11.660456][  T207] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe0c78dc20
| [   11.668729][  T207] ------------[ cut here ]------------
| [   11.668902][  T207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/207
| [   11.669155][  T207] Modules linked in: veth
| [   11.669572][  T207] Tainted: [W]=WARN
[   11.669679][  T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.669858][  T207] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.670047][  T207] 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
[   11.670563][  T207] RSP: 0018:ffa00000009071b0 EFLAGS: 00010286
[   11.670739][  T207] RAX: 00000000ffffffa6 RBX: ff1100000d3f2740 RCX: 1ff4000000120dfc
[   11.670955][  T207] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d3f27f8
[   11.671168][  T207] RBP: ff1100000d151000 R08: 1fe2200001a7e500 R09: ff1100000c77d180
[   11.671387][  T207] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.671597][  T207] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.671811][  T207] FS:  00007fa82f680840(0000) GS:ff1100009e430000(0000) knlGS:0000000000000000
[   11.672082][  T207] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.672266][  T207] CR2: 000000000042ebe0 CR3: 0000000004f9f005 CR4: 0000000000771ef0
[   11.672481][  T207] PKRU: 55555554
[   11.672586][  T207] Call Trace:
[   11.672692][  T207]  <TASK>
[   11.672765][  T207]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.672914][  T207]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.673022][  T207]  __dev_notify_flags (net/core/dev.c:9787)
[   11.673171][  T207]  ? netif_change_name (net/core/dev.c:1495)
[   11.673318][  T207]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.673462][  T207]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.673605][  T207]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.673746][  T207]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.673887][  T207]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.674026][  T207]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.674167][  T207]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.674317][  T207]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.674460][  T207]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.674605][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.674747][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.674887][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.675025][  T207]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.675166][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.675316][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.675456][  T207]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.675596][  T207]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.675737][  T207]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.675878][  T207]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.676018][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.676157][  T207]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.676302][  T207]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.676443][  T207]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.676592][  T207]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.676733][  T207]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.676876][  T207]  ? 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))
[   11.677017][  T207]  ? 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))
[   11.677166][  T207]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.677312][  T207]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.677452][  T207]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.677594][  T207]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.677735][  T207]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.677877][  T207]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.678019][  T207]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.678158][  T207]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.678308][  T207]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.678481][  T207]  ? move_addr_to_kernel (net/socket.c:258)
[   11.678627][  T207]  ___sys_sendmsg (net/socket.c:2752)
[   11.678766][  T207]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.678906][  T207]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.679058][  T207]  ? 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))
[   11.679205][  T207]  __sys_sendmsg (net/socket.c:2784)
[   11.679349][  T207]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.679493][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.679633][  T207]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.679781][  T207]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.679921][  T207]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.680059][  T207]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.680201][  T207]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.680383][  T207] RIP: 0033:0x7fa82f8ba08e
[   11.680530][  T207] 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
[   11.681029][  T207] RSP: 002b:00007ffe0c78d4b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.681248][  T207] RAX: ffffffffffffffda RBX: 00007ffe0c78dc48 RCX: 00007fa82f8ba08e
[   11.681455][  T207] RDX: 0000000000000000 RSI: 00007ffe0c78d560 RDI: 0000000000000005
[   11.681691][  T207] RBP: 00007ffe0c78d4c0 R08: 0000000000000000 R09: 0000000000000000
[   11.681900][  T207] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdd
[   11.682107][  T207] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe0c78dc20
| [   11.946993][  T215] ------------[ cut here ]------------
| [   11.947212][  T215] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/215
| [   11.947501][  T215] Modules linked in: veth
| [   11.948115][  T215] Tainted: [W]=WARN
[   11.948302][  T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.948590][  T215] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.948849][  T215] 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
[   11.949369][  T215] RSP: 0018:ffa00000005b6e30 EFLAGS: 00010286
[   11.949587][  T215] RAX: 00000000ffffffa6 RBX: ff11000008ecf000 RCX: 1ff40000000b6d8c
[   11.949821][  T215] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008ecf0b8
[   11.950144][  T215] RBP: ff11000007ba1000 R08: 1fe22000011d9e18 R09: ff11000004cb8b80
[   11.950492][  T215] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.950816][  T215] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c656000
[   11.951124][  T215] FS:  00007f78b773f840(0000) GS:ff1100009e530000(0000) knlGS:0000000000000000
[   11.951477][  T215] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.951709][  T215] CR2: 0000563e907d9520 CR3: 0000000004b70005 CR4: 0000000000771ef0
[   11.952024][  T215] PKRU: 55555554
[   11.952194][  T215] Call Trace:
[   11.952373][  T215]  <TASK>
[   11.952486][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.952701][  T215]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.952894][  T215]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.953008][  T215]  ? ref_tracker_alloc (./include/linux/spinlock.h:408 (discriminator 3) lib/ref_tracker.c:281 (discriminator 3))
[   11.953172][  T215]  __dev_notify_flags (net/core/dev.c:9787)
[   11.953366][  T215]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[   11.953572][  T215]  ? 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)
[   11.953785][  T215]  ? netif_change_name (net/core/dev.c:1495)
[   11.953967][  T215]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.954108][  T215]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.954271][  T215]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.954413][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.954559][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.954702][  T215]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.954846][  T215]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.954987][  T215]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.955130][  T215]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   11.955291][  T215] veth_newlink (drivers/net/veth.c:1871) veth
[   11.955436][  T215]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   11.955610][  T215]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.955751][  T215]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.955891][  T215]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.956048][  T215]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   11.956208][  T215]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   11.956371][  T215]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.956511][  T215]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.956660][  T215]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   11.956808][  T215]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   11.956967][  T215]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.957184][  T215]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.957443][  T215]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.957690][  T215]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.957928][  T215]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.958126][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.958287][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.958434][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.958577][  T215]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.958723][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.958875][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.959018][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.959210][  T215]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.959432][  T215]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.959574][  T215]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.959721][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.959865][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.960006][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.960149][  T215]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.960304][  T215]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.960448][  T215]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.960620][  T215]  ? 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))
[   11.960783][  T215]  ? 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))
[   11.960969][  T215]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.961228][  T215]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.961451][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.961674][  T215]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.961857][  T215]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.962003][  T215]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.962159][  T215]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.962323][  T215]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.962466][  T215]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.962643][  T215]  ? move_addr_to_kernel (net/socket.c:258)
[   11.962827][  T215]  ___sys_sendmsg (net/socket.c:2752)
[   11.963032][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.963181][  T215]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.963344][  T215]  ? 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))
[   11.963489][  T215]  __sys_sendmsg (net/socket.c:2784)
[   11.963630][  T215]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.963777][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.963929][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.964142][  T215]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.964302][  T215]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.964454][  T215]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.964605][  T215]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.964865][  T215] RIP: 0033:0x7f78b797908e
[   11.965095][  T215] 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
[   11.965801][  T215] RSP: 002b:00007ffc5691e240 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.966111][  T215] RAX: ffffffffffffffda RBX: 00007ffc5691e9d8 RCX: 00007f78b797908e
[   11.966341][  T215] RDX: 0000000000000000 RSI: 00007ffc5691e2f0 RDI: 0000000000000005
[   11.966557][  T215] RBP: 00007ffc5691e250 R08: 0000000000000000 R09: 0000000000000000
[   11.966810][  T215] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdd
[   11.967090][  T215] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc5691e9b0
| [   11.977951][  T215] ------------[ cut here ]------------
| [   11.978129][  T215] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/215
| [   11.978506][  T215] Modules linked in: veth
| [   11.978922][  T215] Tainted: [W]=WARN
[   11.979031][  T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.979208][  T215] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.979400][  T215] 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
[   11.979933][  T215] RSP: 0018:ffa00000005b71b0 EFLAGS: 00010286
[   11.980110][  T215] RAX: 00000000ffffffa6 RBX: ff1100000d311e00 RCX: 1ff40000000b6dfc
[   11.980348][  T215] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d311eb8
[   11.980556][  T215] RBP: ff11000008ae1000 R08: 1fe2200001a623d8 R09: ff11000004cb8b80
[   11.980774][  T215] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.980983][  T215] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   11.981200][  T215] FS:  00007f78b773f840(0000) GS:ff1100009e530000(0000) knlGS:0000000000000000
[   11.981451][  T215] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.981627][  T215] CR2: 0000563e907d9520 CR3: 0000000004b70005 CR4: 0000000000771ef0
[   11.981837][  T215] PKRU: 55555554
[   11.981942][  T215] Call Trace:
[   11.982047][  T215]  <TASK>
[   11.982123][  T215]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.982277][  T215]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.982383][  T215]  __dev_notify_flags (net/core/dev.c:9787)
[   11.982524][  T215]  ? netif_change_name (net/core/dev.c:1495)
[   11.982663][  T215]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   11.982802][  T215]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   11.982943][  T215]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   11.983084][  T215]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   11.983237][  T215]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   11.983394][  T215]  ? __dev_get_by_name (net/core/dev.c:883)
[   11.983534][  T215]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   11.983681][  T215]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   11.983828][  T215]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   11.983967][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.984105][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.984253][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.984391][  T215]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   11.984534][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.984676][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.984819][  T215]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   11.984955][  T215]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   11.985094][  T215]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   11.985241][  T215]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.985384][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.985524][  T215]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   11.985661][  T215]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   11.985800][  T215]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.986006][  T215]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.986204][  T215]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.986412][  T215]  ? 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))
[   11.986551][  T215]  ? 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))
[   11.986690][  T215]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.986829][  T215]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.986968][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.987110][  T215]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.987271][  T215]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.987412][  T215]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.987556][  T215]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   11.987700][  T215]  ? copy_msghdr_from_user (net/socket.c:2635)
[   11.987836][  T215]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   11.988010][  T215]  ? move_addr_to_kernel (net/socket.c:258)
[   11.988152][  T215]  ___sys_sendmsg (net/socket.c:2752)
[   11.988308][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   11.988461][  T215]  ? copy_msghdr_from_user (net/socket.c:2603)
[   11.988667][  T215]  ? 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))
[   11.988810][  T215]  __sys_sendmsg (net/socket.c:2784)
[   11.988949][  T215]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   11.989091][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.989243][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.989387][  T215]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.989526][  T215]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.989665][  T215]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.989804][  T215]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.989976][  T215] RIP: 0033:0x7f78b797908e
[   11.990122][  T215] 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
[   11.990628][  T215] RSP: 002b:00007ffc5691e240 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.990839][  T215] RAX: ffffffffffffffda RBX: 00007ffc5691e9d8 RCX: 00007f78b797908e
[   11.991046][  T215] RDX: 0000000000000000 RSI: 00007ffc5691e2f0 RDI: 0000000000000005
[   11.991263][  T215] RBP: 00007ffc5691e250 R08: 0000000000000000 R09: 0000000000000000
[   11.991472][  T215] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdd
[   11.991679][  T215] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc5691e9b0
| [   12.234580][  T221] ------------[ cut here ]------------
| [   12.234778][  T221] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/221
| [   12.235039][  T221] Modules linked in: veth
| [   12.236117][  T221] Tainted: [W]=WARN
[   12.236325][  T221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.236611][  T221] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.236912][  T221] 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
[   12.237761][  T221] RSP: 0018:ffa0000000606e30 EFLAGS: 00010286
[   12.238059][  T221] RAX: 00000000ffffffa6 RBX: ff11000009d1e580 RCX: 1ff40000000c0d8c
[   12.238401][  T221] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009d1e638
[   12.238743][  T221] RBP: ff11000007da9000 R08: 1fe22000013a3cc8 R09: ff110000025d2e80
[   12.239052][  T221] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.239361][  T221] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b264b00
[   12.239661][  T221] FS:  00007f0b07a34840(0000) GS:ff1100009e530000(0000) knlGS:0000000000000000
[   12.239981][  T221] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.240228][  T221] CR2: 000000000042ebe0 CR3: 00000000025c4001 CR4: 0000000000771ef0
[   12.240518][  T221] PKRU: 55555554
[   12.240667][  T221] Call Trace:
[   12.240823][  T221]  <TASK>
[   12.240923][  T221]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.241141][  T221]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.241281][  T221]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[   12.241522][  T221]  __dev_notify_flags (net/core/dev.c:9787)
[   12.241702][  T221]  ? netif_change_name (net/core/dev.c:1495)
[   12.241888][  T221]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.242067][  T221]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.242267][  T221]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.242463][  T221]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   12.242648][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.242843][  T221]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.243031][  T221]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   12.243228][  T221]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.243419][  T221]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   12.243620][  T221] veth_newlink (drivers/net/veth.c:1871) veth
[   12.243798][  T221]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   12.244028][  T221]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.244229][  T221]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.244435][  T221]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.244648][  T221]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   12.244840][  T221]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   12.245030][  T221]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   12.245228][  T221]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.245434][  T221]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   12.245623][  T221]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   12.245816][  T221]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.245998][  T221]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.246189][  T221]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.246384][  T221]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.246578][  T221]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.246772][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.246962][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.247150][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.247352][  T221]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.247547][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.247735][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.247943][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.248153][  T221]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.248369][  T221]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.248515][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.248658][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.248806][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.248953][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.249098][  T221]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.249251][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.249395][  T221]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.249545][  T221]  ? 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))
[   12.249689][  T221]  ? 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))
[   12.249834][  T221]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.249978][  T221]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.250121][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.250277][  T221]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.250421][  T221]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.250566][  T221]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.250716][  T221]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.250861][  T221]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.251006][  T221]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.251204][  T221]  ? move_addr_to_kernel (net/socket.c:258)
[   12.251368][  T221]  ___sys_sendmsg (net/socket.c:2752)
[   12.251515][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.251661][  T221]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.251815][  T221]  ? 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))
[   12.251963][  T221]  __sys_sendmsg (net/socket.c:2784)
[   12.252105][  T221]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.252277][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.252424][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.252569][  T221]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.252712][  T221]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.252858][  T221]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.253006][  T221]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.253192][  T221] RIP: 0033:0x7f0b07c6e08e
[   12.253356][  T221] 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
[   12.253874][  T221] RSP: 002b:00007ffd0b338450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.254098][  T221] RAX: ffffffffffffffda RBX: 00007ffd0b338be8 RCX: 00007f0b07c6e08e
[   12.254325][  T221] RDX: 0000000000000000 RSI: 00007ffd0b338500 RDI: 0000000000000005
[   12.254550][  T221] RBP: 00007ffd0b338460 R08: 0000000000000000 R09: 0000000000000000
[   12.254765][  T221] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdd
[   12.254986][  T221] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd0b338bc0
| [   12.266801][  T221] ------------[ cut here ]------------
| [   12.267053][  T221] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/221
| [   12.267464][  T221] Modules linked in: veth
| [   12.268096][  T221] Tainted: [W]=WARN
[   12.268290][  T221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.268571][  T221] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.268867][  T221] 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
[   12.269696][  T221] RSP: 0018:ffa00000006071b0 EFLAGS: 00010286
[   12.269987][  T221] RAX: 00000000ffffffa6 RBX: ff11000009066e40 RCX: 1ff40000000c0dfc
[   12.270338][  T221] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009066ef8
[   12.270677][  T221] RBP: ff11000008371000 R08: 1fe220000120cde0 R09: ff110000025d2e80
[   12.271012][  T221] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.271548][  T221] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   12.271891][  T221] FS:  00007f0b07a34840(0000) GS:ff1100009e3b0000(0000) knlGS:0000000000000000
[   12.272304][  T221] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.272591][  T221] CR2: 000055c0d0c11d5c CR3: 00000000025c4005 CR4: 0000000000771ef0
[   12.272931][  T221] PKRU: 55555554
[   12.273098][  T221] Call Trace:
[   12.273282][  T221]  <TASK>
[   12.273396][  T221]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.273624][  T221]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.273797][  T221]  __dev_notify_flags (net/core/dev.c:9787)
[   12.274026][  T221]  ? netif_change_name (net/core/dev.c:1495)
[   12.274269][  T221]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   12.274499][  T221]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.274730][  T221]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   12.274959][  T221]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   12.275191][  T221]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   12.275427][  T221]  ? __dev_get_by_name (net/core/dev.c:883)
[   12.275653][  T221]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   12.275892][  T221]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   12.276130][  T221]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.276373][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.276598][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.276825][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.277049][  T221]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.277286][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.277523][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.277753][  T221]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.277983][  T221]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.278225][  T221]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.278449][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.278681][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.278908][  T221]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.279131][  T221]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.279371][  T221]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.279595][  T221]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.279827][  T221]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.280061][  T221]  ? 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))
[   12.280295][  T221]  ? 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))
[   12.280522][  T221]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.280744][  T221]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.280972][  T221]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.281205][  T221]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.281448][  T221]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.281674][  T221]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.281901][  T221]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.282117][  T221]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.282348][  T221]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.282622][  T221]  ? move_addr_to_kernel (net/socket.c:258)
[   12.282857][  T221]  ___sys_sendmsg (net/socket.c:2752)
[   12.283082][  T221]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.283317][  T221]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.283555][  T221]  ? 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))
[   12.283782][  T221]  __sys_sendmsg (net/socket.c:2784)
[   12.284001][  T221]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.284244][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.284472][  T221]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.284703][  T221]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.284931][  T221]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.285152][  T221]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.285407][  T221]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.285684][  T221] RIP: 0033:0x7f0b07c6e08e
[   12.285921][  T221] 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
[   12.286731][  T221] RSP: 002b:00007ffd0b338450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.287074][  T221] RAX: ffffffffffffffda RBX: 00007ffd0b338be8 RCX: 00007f0b07c6e08e
[   12.287426][  T221] RDX: 0000000000000000 RSI: 00007ffd0b338500 RDI: 0000000000000005
[   12.287758][  T221] RBP: 00007ffd0b338460 R08: 0000000000000000 R09: 0000000000000000
[   12.288097][  T221] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdd


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