======================================
| xx__-> [    9.322874][  T186] ------------[ cut here ]------------
| [    9.323162][  T186] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/186
| [    9.323429][  T186] Modules linked in: veth
| [    9.323881][  T186] Tainted: [W]=WARN
[    9.323995][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.324189][  T186] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.324451][  T186] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e4 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e4 f0 ff       	call   0xfffffffffff0e474
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.324987][  T186] RSP: 0018:ffa00000008c6e30 EFLAGS: 00010286
[    9.325181][  T186] RAX: 00000000ffffffa6 RBX: ff1100000b4c4040 RCX: 1ff4000000118d8c
[    9.325410][  T186] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b4c40f8
[    9.325640][  T186] RBP: ff110000051b4000 R08: 1fe2200001698820 R09: ff1100000d0b8b80
[    9.325894][  T186] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.326126][  T186] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000095bc400
[    9.326347][  T186] FS:  00007f8c2f190840(0000) GS:ff1100009d9b0000(0000) knlGS:0000000000000000
[    9.326610][  T186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.326821][  T186] CR2: 00007f22ad47b808 CR3: 000000000d07e006 CR4: 0000000000771ef0
[    9.327088][  T186] PKRU: 55555554
[    9.327202][  T186] Call Trace:
[    9.327311][  T186]  <TASK>
[    9.327389][  T186]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    9.327582][  T186]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.327749][  T186]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.327860][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.328008][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.328166][  T186]  __dev_notify_flags (net/core/dev.c:9787)
[    9.328312][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.328470][  T186]  ? netif_change_name (net/core/dev.c:1495)
[    9.328617][  T186]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    9.328842][  T186]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    9.328995][  T186]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.329140][  T186]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.329316][  T186]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.329469][  T186] veth_newlink (drivers/net/veth.c:1871) veth
[    9.329616][  T186]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[    9.329800][  T186]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.329956][  T186]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.330102][  T186]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.330270][  T186]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.330421][  T186]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.330570][  T186]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.330719][  T186]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.330869][  T186]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    9.331016][  T186]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.331168][  T186]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.331312][  T186]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.331460][  T186]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.331612][  T186]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.331764][  T186]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.331913][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.332057][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.332205][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.332350][  T186]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.332512][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.332665][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.332838][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.332984][  T186]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.333128][  T186]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.333275][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.333426][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.333576][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.333724][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.333932][  T186]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.334082][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.334235][  T186]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.334382][  T186]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.334532][  T186]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.334680][  T186]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.334831][  T186]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.334977][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.335122][  T186]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.335270][  T186]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.335422][  T186]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.335571][  T186]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.335723][  T186]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.335875][  T186]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.336057][  T186]  ? move_addr_to_kernel (net/socket.c:258)
[    9.336209][  T186]  ___sys_sendmsg (net/socket.c:2752)
[    9.336353][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.336504][  T186]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.336662][  T186]  __sys_sendmsg (net/socket.c:2784)
[    9.336816][  T186]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.336962][  T186]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[    9.337106][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.337259][  T186]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    9.337404][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.337556][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.337702][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.337854][  T186]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.338001][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.338147][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.338330][  T186] RIP: 0033:0x7f8c2f3ca08e
[    9.338597][  T186] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.339231][  T186] RSP: 002b:00007fff6d23ba10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.339452][  T186] RAX: ffffffffffffffda RBX: 00007fff6d23c1a8 RCX: 00007f8c2f3ca08e
[    9.339875][  T186] RDX: 0000000000000000 RSI: 00007fff6d23bac0 RDI: 0000000000000005
[    9.340221][  T186] RBP: 00007fff6d23ba20 R08: 0000000000000000 R09: 0000000000000000
[    9.340444][  T186] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdb
[    9.340660][  T186] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff6d23c180
| [    9.349782][  T186] ------------[ cut here ]------------
| [    9.349957][  T186] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/186
| [    9.350204][  T186] Modules linked in: veth
| [    9.350601][  T186] Tainted: [W]=WARN
[    9.350715][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.350893][  T186] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.351076][  T186] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e4 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e4 f0 ff       	call   0xfffffffffff0e474
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.351611][  T186] RSP: 0018:ffa00000008c71b0 EFLAGS: 00010286
[    9.351794][  T186] RAX: 00000000ffffffa6 RBX: ff1100000b4f63c0 RCX: 1ff4000000118dfc
[    9.352008][  T186] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b4f6478
[    9.352222][  T186] RBP: ff1100000a0ac000 R08: 1fe220000169ec90 R09: ff1100000d0b8b80
[    9.352439][  T186] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.352651][  T186] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    9.352864][  T186] FS:  00007f8c2f190840(0000) GS:ff1100009d9b0000(0000) knlGS:0000000000000000
[    9.353111][  T186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.353291][  T186] CR2: 00007f22ad47b808 CR3: 000000000d07e006 CR4: 0000000000771ef0
[    9.353518][  T186] PKRU: 55555554
[    9.353627][  T186] Call Trace:
[    9.353737][  T186]  <TASK>
[    9.353907][  T186]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.354051][  T186]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.354165][  T186]  __dev_notify_flags (net/core/dev.c:9787)
[    9.354402][  T186]  ? netif_change_name (net/core/dev.c:1495)
[    9.354546][  T186]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:164)
[    9.354686][  T186]  ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4511)
[    9.354931][  T186]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[    9.355205][  T186]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.355369][  T186]  ? rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.355515][  T186]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.355657][  T186]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.355806][  T186]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.355950][  T186]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.356096][  T186]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.356245][  T186]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.356387][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.356625][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.356833][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.357069][  T186]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.357214][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.357357][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.357507][  T186]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.357647][  T186]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.357853][  T186]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.358051][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.358195][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.358334][  T186]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.358496][  T186]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.358643][  T186]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.358847][  T186]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.358994][  T186]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.359137][  T186]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.359282][  T186]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.359428][  T186]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.359569][  T186]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.359771][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.359977][  T186]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.360129][  T186]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.360273][  T186]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.360415][  T186]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.360561][  T186]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.360700][  T186]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.360941][  T186]  ? move_addr_to_kernel (net/socket.c:258)
[    9.361109][  T186]  ___sys_sendmsg (net/socket.c:2752)
[    9.361255][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.361509][  T186]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.361664][  T186]  __sys_sendmsg (net/socket.c:2784)
[    9.361866][  T186]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.362010][  T186]  ? down_write_nested (kernel/locking/rwsem.c:1753)
[    9.362153][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.362389][  T186]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    9.362535][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.362676][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.362903][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.363088][  T186]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.363232][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.363372][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.363552][  T186] RIP: 0033:0x7f8c2f3ca08e
[    9.363701][  T186] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.364512][  T186] RSP: 002b:00007fff6d23ba10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.364881][  T186] RAX: ffffffffffffffda RBX: 00007fff6d23c1a8 RCX: 00007f8c2f3ca08e
[    9.365122][  T186] RDX: 0000000000000000 RSI: 00007fff6d23bac0 RDI: 0000000000000005
[    9.365436][  T186] RBP: 00007fff6d23ba20 R08: 0000000000000000 R09: 0000000000000000
[    9.365645][  T186] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdb
[    9.365916][  T186] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff6d23c180
| [    9.513776][  T193] ------------[ cut here ]------------
| [    9.513978][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/193
| [    9.514250][  T193] Modules linked in: veth
| [    9.514679][  T193] Tainted: [W]=WARN
[    9.514808][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.514991][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.515185][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[    9.515694][  T193] RSP: 0018:ffa0000000636e30 EFLAGS: 00010286
[    9.515884][  T193] RAX: 00000000ffffffa6 RBX: ff1100000b643e00 RCX: 1ff40000000c6d8c
[    9.516103][  T193] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b643eb8
[    9.516324][  T193] RBP: ff110000087c9000 R08: 1fe22000016c87d8 R09: ff1100000b692e80
[    9.516545][  T193] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.516762][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000bc8a000
[    9.516981][  T193] FS:  00007f8f8a2ad840(0000) GS:ff1100009da30000(0000) knlGS:0000000000000000
[    9.517235][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.517415][  T193] CR2: 000000000042ebe0 CR3: 000000000db57006 CR4: 0000000000771ef0
[    9.517637][  T193] PKRU: 55555554
[    9.517751][  T193] Call Trace:
[    9.517860][  T193]  <TASK>
[    9.517937][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.518084][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.518198][  T193]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    9.518379][  T193]  __dev_notify_flags (net/core/dev.c:9787)
[    9.518534][  T193]  ? netif_change_name (net/core/dev.c:1495)
[    9.518678][  T193]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.518827][  T193]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.518971][  T193]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.519117][  T193]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.519269][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.519412][  T193]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.519565][  T193]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.519713][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.519863][  T193]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.520014][  T193] veth_newlink (drivers/net/veth.c:1871) veth
[    9.520164][  T193]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[    9.520342][  T193]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.520548][  T193]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.520728][  T193]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.520894][  T193]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.521047][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.521206][  T193]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.521351][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.521504][  T193]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    9.521649][  T193]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.521880][  T193]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.522027][  T193]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.522176][  T193]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.522326][  T193]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.522478][  T193]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.522624][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.522832][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.522979][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.523215][  T193]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.523357][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.523510][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.523653][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.523897][  T193]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.524044][  T193]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.524193][  T193]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.524335][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.524485][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.524626][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.524883][  T193]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.525030][  T193]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.525179][  T193]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.525325][  T193]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.525476][  T193]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.525620][  T193]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.525879][  T193]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.526026][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.526176][  T193]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.526321][  T193]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.526469][  T193]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.526615][  T193]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.526849][  T193]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.526992][  T193]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.527174][  T193]  ? move_addr_to_kernel (net/socket.c:258)
[    9.527323][  T193]  ___sys_sendmsg (net/socket.c:2752)
[    9.527468][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.527612][  T193]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.527874][  T193]  ? 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))
[    9.528022][  T193]  __sys_sendmsg (net/socket.c:2784)
[    9.528169][  T193]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.528314][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.528463][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.528606][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.528860][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.529005][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.529156][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.529334][  T193] RIP: 0033:0x7f8f8a4e708e
[    9.529492][  T193] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.530089][  T193] RSP: 002b:00007ffe0db0a450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.530309][  T193] RAX: ffffffffffffffda RBX: 00007ffe0db0abe8 RCX: 00007f8f8a4e708e
[    9.530529][  T193] RDX: 0000000000000000 RSI: 00007ffe0db0a500 RDI: 0000000000000005
[    9.530855][  T193] RBP: 00007ffe0db0a460 R08: 0000000000000000 R09: 0000000000000000
[    9.531069][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdb
[    9.531286][  T193] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe0db0abc0
| [    9.543393][  T193] ------------[ cut here ]------------
| [    9.543559][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/193
| [    9.544208][  T193] Modules linked in: veth
| [    9.544609][  T193] Tainted: [W]=WARN
[    9.544719][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.544898][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.545088][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[    9.545591][  T193] RSP: 0018:ffa00000006371b0 EFLAGS: 00010286
[    9.545774][  T193] RAX: 00000000ffffffa6 RBX: ff11000008ed23c0 RCX: 1ff40000000c6dfc
[    9.545984][  T193] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008ed2478
[    9.546195][  T193] RBP: ff1100000c499000 R08: 1fe22000011da490 R09: ff1100000b692e80
[    9.546402][  T193] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.546614][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    9.546825][  T193] FS:  00007f8f8a2ad840(0000) GS:ff1100009da30000(0000) knlGS:0000000000000000
[    9.547070][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.547250][  T193] CR2: 000000000042ebe0 CR3: 000000000db57006 CR4: 0000000000771ef0
[    9.547495][  T193] PKRU: 55555554
[    9.547604][  T193] Call Trace:
[    9.547712][  T193]  <TASK>
[    9.547784][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.547926][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.548032][  T193]  __dev_notify_flags (net/core/dev.c:9787)
[    9.548177][  T193]  ? netif_change_name (net/core/dev.c:1495)
[    9.548318][  T193]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.548465][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.548607][  T193]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.548751][  T193]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.548892][  T193]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.549030][  T193]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.549173][  T193]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.549317][  T193]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.549466][  T193]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.549608][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.549754][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.549894][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.550033][  T193]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.550176][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.550323][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.550467][  T193]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.550608][  T193]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.550752][  T193]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.550889][  T193]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.551028][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.551171][  T193]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.551309][  T193]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.551459][  T193]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.551599][  T193]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.551743][  T193]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.551891][  T193]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.552030][  T193]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.552178][  T193]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.552318][  T193]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.552466][  T193]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.552609][  T193]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.552756][  T193]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.552899][  T193]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.553043][  T193]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.553188][  T193]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.553326][  T193]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.553503][  T193]  ? move_addr_to_kernel (net/socket.c:258)
[    9.553646][  T193]  ___sys_sendmsg (net/socket.c:2752)
[    9.553790][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.553938][  T193]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.554087][  T193]  ? 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))
[    9.554233][  T193]  __sys_sendmsg (net/socket.c:2784)
[    9.554371][  T193]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.554521][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.554660][  T193]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.554806][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.554949][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.555090][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.555231][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.555402][  T193] RIP: 0033:0x7f8f8a4e708e
[    9.555555][  T193] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.556061][  T193] RSP: 002b:00007ffe0db0a450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.556272][  T193] RAX: ffffffffffffffda RBX: 00007ffe0db0abe8 RCX: 00007f8f8a4e708e
[    9.556486][  T193] RDX: 0000000000000000 RSI: 00007ffe0db0a500 RDI: 0000000000000005
[    9.556694][  T193] RBP: 00007ffe0db0a460 R08: 0000000000000000 R09: 0000000000000000
[    9.556911][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdb
[    9.557120][  T193] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe0db0abc0
| [    9.759555][  T200] ------------[ cut here ]------------
| [    9.760258][  T200] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/200
| [    9.760521][  T200] Modules linked in: veth
| [    9.761027][  T200] Tainted: [W]=WARN
[    9.761136][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.761321][  T200] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.761520][  T200] 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
[    9.762030][  T200] RSP: 0018:ffa00000006a6e30 EFLAGS: 00010286
[    9.762217][  T200] RAX: 00000000ffffffa6 RBX: ff1100000b4c5c40 RCX: 1ff40000000d4d8c
[    9.762437][  T200] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b4c5cf8
[    9.762648][  T200] RBP: ff1100000da94000 R08: 1fe2200001698ba0 R09: ff1100000d145180
[    9.762868][  T200] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.763079][  T200] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000095bc400
[    9.763319][  T200] FS:  00007f8ab3960840(0000) GS:ff1100009da30000(0000) knlGS:0000000000000000
[    9.763573][  T200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.763758][  T200] CR2: 000000000042ebe0 CR3: 000000000daaa006 CR4: 0000000000771ef0
[    9.763974][  T200] PKRU: 55555554
[    9.764081][  T200] Call Trace:
[    9.764194][  T200]  <TASK>
[    9.764268][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.764417][  T200]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.764567][  T200]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.764676][  T200]  ? ref_tracker_alloc (./include/linux/spinlock.h:408 (discriminator 3) lib/ref_tracker.c:281 (discriminator 3))
[    9.764826][  T200]  __dev_notify_flags (net/core/dev.c:9787)
[    9.764969][  T200]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[    9.765110][  T200]  ? 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)
[    9.765257][  T200]  ? netif_change_name (net/core/dev.c:1495)
[    9.765398][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.765571][  T200]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.765717][  T200]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.765895][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.766045][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.766194][  T200]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.766337][  T200]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.766482][  T200]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.766627][  T200]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.766961][  T200] veth_newlink (drivers/net/veth.c:1871) veth
[    9.767105][  T200]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[    9.767288][  T200]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.767449][  T200]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.767593][  T200]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.767766][  T200]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.767914][  T200]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.768060][  T200]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.768212][  T200]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.768357][  T200]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    9.768505][  T200]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.768653][  T200]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.768800][  T200]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.768943][  T200]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.769091][  T200]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.769241][  T200]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.769402][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.769558][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.769703][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.769849][  T200]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.769992][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.770141][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.770302][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.770453][  T200]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.770600][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.770751][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.770897][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.771043][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.771195][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.771340][  T200]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.771491][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.771634][  T200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.771784][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.771924][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.772066][  T200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.772216][  T200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.772359][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.772528][  T200]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.772675][  T200]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.772825][  T200]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.772973][  T200]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.773118][  T200]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.773265][  T200]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.773446][  T200]  ? move_addr_to_kernel (net/socket.c:258)
[    9.773601][  T200]  ___sys_sendmsg (net/socket.c:2752)
[    9.773749][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.773890][  T200]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.774042][  T200]  ? 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))
[    9.774194][  T200]  __sys_sendmsg (net/socket.c:2784)
[    9.774352][  T200]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.774523][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.774668][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.774833][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.774987][  T200]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.775129][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.775275][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.775480][  T200] RIP: 0033:0x7f8ab3b9a08e
[    9.775638][  T200] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.776168][  T200] RSP: 002b:00007fffcc501430 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.776388][  T200] RAX: ffffffffffffffda RBX: 00007fffcc501bc8 RCX: 00007f8ab3b9a08e
[    9.776611][  T200] RDX: 0000000000000000 RSI: 00007fffcc5014e0 RDI: 0000000000000005
[    9.776832][  T200] RBP: 00007fffcc501440 R08: 0000000000000000 R09: 0000000000000000
[    9.777050][  T200] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[    9.777274][  T200] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffcc501ba0
| [    9.788202][  T200] ------------[ cut here ]------------
| [    9.788374][  T200] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/200
| [    9.788623][  T200] Modules linked in: veth
| [    9.789033][  T200] Tainted: [W]=WARN
[    9.789141][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.789321][  T200] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.789579][  T200] 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
[    9.790162][  T200] RSP: 0018:ffa00000006a71b0 EFLAGS: 00010286
[    9.790342][  T200] RAX: 00000000ffffffa6 RBX: ff110000056a6740 RCX: 1ff40000000d4dfc
[    9.790553][  T200] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000056a67f8
[    9.790837][  T200] RBP: ff1100000cca4000 R08: 1fe2200000ad4d00 R09: ff1100000d145180
[    9.791046][  T200] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.791279][  T200] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    9.791494][  T200] FS:  00007f8ab3960840(0000) GS:ff1100009da30000(0000) knlGS:0000000000000000
[    9.791851][  T200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.792043][  T200] CR2: 000000000042ebe0 CR3: 000000000daaa006 CR4: 0000000000771ef0
[    9.792376][  T200] PKRU: 55555554
[    9.792488][  T200] Call Trace:
[    9.792591][  T200]  <TASK>
[    9.792663][  T200]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.792859][  T200]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.792967][  T200]  __dev_notify_flags (net/core/dev.c:9787)
[    9.793108][  T200]  ? netif_change_name (net/core/dev.c:1495)
[    9.793271][  T200]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.793411][  T200]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.793562][  T200]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.793702][  T200]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.793849][  T200]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.793986][  T200]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.794130][  T200]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.794278][  T200]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.794426][  T200]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.794569][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.794755][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.794896][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.795035][  T200]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.795180][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.795323][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.795469][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.795611][  T200]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.795756][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.795897][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.796035][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.796187][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.796326][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.796471][  T200]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.796610][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.796757][  T200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.796900][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.797038][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.797184][  T200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.797324][  T200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.797470][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.797610][  T200]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.797756][  T200]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.797900][  T200]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.798045][  T200]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.798216][  T200]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.798354][  T200]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.798533][  T200]  ? move_addr_to_kernel (net/socket.c:258)
[    9.798676][  T200]  ___sys_sendmsg (net/socket.c:2752)
[    9.798826][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.798967][  T200]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.799114][  T200]  ? 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))
[    9.799262][  T200]  __sys_sendmsg (net/socket.c:2784)
[    9.799401][  T200]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.799549][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.799690][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.799839][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.799999][  T200]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.800138][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.800283][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.800463][  T200] RIP: 0033:0x7f8ab3b9a08e
[    9.800610][  T200] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.801141][  T200] RSP: 002b:00007fffcc501430 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.801355][  T200] RAX: ffffffffffffffda RBX: 00007fffcc501bc8 RCX: 00007f8ab3b9a08e
[    9.801570][  T200] RDX: 0000000000000000 RSI: 00007fffcc5014e0 RDI: 0000000000000005
[    9.801785][  T200] RBP: 00007fffcc501440 R08: 0000000000000000 R09: 0000000000000000
[    9.802178][  T200] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[    9.802384][  T200] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffcc501ba0
| [    9.983127][  T206] ------------[ cut here ]------------
| [    9.983382][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/206
| [    9.983695][  T206] Modules linked in: veth
| [    9.984328][  T206] Tainted: [W]=WARN
[    9.984495][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.984737][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.984979][  T206] 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
[    9.985544][  T206] RSP: 0018:ffa0000000856e30 EFLAGS: 00010286
[    9.985792][  T206] RAX: 00000000ffffffa6 RBX: ff11000005e2fe00 RCX: 1ff400000010ad8c
[    9.986058][  T206] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005e2feb8
[    9.986334][  T206] RBP: ff1100000c511000 R08: 1fe2200000bc5fd8 R09: ff1100000cf10b80
[    9.986607][  T206] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.986889][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009210400
[    9.987158][  T206] FS:  00007fc864c13840(0000) GS:ff1100009dab0000(0000) knlGS:0000000000000000
[    9.987476][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.987723][  T206] CR2: 000000000042ebe0 CR3: 000000000f14f006 CR4: 0000000000771ef0
[    9.987988][  T206] PKRU: 55555554
[    9.988148][  T206] Call Trace:
[    9.988316][  T206]  <TASK>
[    9.988451][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.988657][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.988869][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.989031][  T206]  ? ref_tracker_alloc (./include/linux/spinlock.h:408 (discriminator 3) lib/ref_tracker.c:281 (discriminator 3))
[    9.989244][  T206]  __dev_notify_flags (net/core/dev.c:9787)
[    9.989447][  T206]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[    9.989641][  T206]  ? 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)
[    9.989848][  T206]  ? netif_change_name (net/core/dev.c:1495)
[    9.990044][  T206]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.990249][  T206]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.990452][  T206]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.990670][  T206]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.990881][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.991075][  T206]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.991282][  T206]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.991487][  T206]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.991687][  T206]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.991898][  T206] veth_newlink (drivers/net/veth.c:1871) veth
[    9.992095][  T206]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[    9.992335][  T206]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.992542][  T206]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.992748][  T206]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.992959][  T206]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.993158][  T206]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.993361][  T206]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.993562][  T206]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.993770][  T206]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    9.993966][  T206]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.994166][  T206]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.994362][  T206]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.994568][  T206]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.994782][  T206]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.994982][  T206]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.995179][  T206]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.995373][  T206]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.995680][  T206]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.995888][  T206]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.996080][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.996293][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.996496][  T206]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.996690][  T206]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.996898][  T206]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.997091][  T206]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.997295][  T206]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.997499][  T206]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.997693][  T206]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.997904][  T206]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.998097][  T206]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.998302][  T206]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.998509][  T206]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.998702][  T206]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.998913][  T206]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.999109][  T206]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.999316][  T206]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.999521][  T206]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.999729][  T206]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.999924][  T206]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.000120][  T206]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.000326][  T206]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.000529][  T206]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.000775][  T206]  ? move_addr_to_kernel (net/socket.c:258)
[   10.000974][  T206]  ___sys_sendmsg (net/socket.c:2752)
[   10.001171][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.001367][  T206]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.001580][  T206]  ? 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))
[   10.001793][  T206]  __sys_sendmsg (net/socket.c:2784)
[   10.001987][  T206]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.002190][  T206]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.002385][  T206]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.002584][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.002793][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.002987][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.003185][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.003413][  T206] RIP: 0033:0x7fc864e4d08e
[   10.003624][  T206] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.004193][  T206] RSP: 002b:00007ffcaa9b1880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.004466][  T206] RAX: ffffffffffffffda RBX: 00007ffcaa9b2018 RCX: 00007fc864e4d08e
[   10.004738][  T206] RDX: 0000000000000000 RSI: 00007ffcaa9b1930 RDI: 0000000000000005
[   10.005003][  T206] RBP: 00007ffcaa9b1890 R08: 0000000000000000 R09: 0000000000000000
[   10.005275][  T206] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[   10.005542][  T206] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcaa9b1ff0
| [   10.014185][  T206] ------------[ cut here ]------------
| [   10.014374][  T206] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/206
| [   10.014673][  T206] Modules linked in: veth
| [   10.015816][  T206] Tainted: [W]=WARN
[   10.016029][  T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.016320][  T206] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.016619][  T206] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e4 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e4 f0 ff       	call   0xfffffffffff0e474
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.017238][  T206] RSP: 0018:ffa00000008571b0 EFLAGS: 00010286
[   10.017528][  T206] RAX: 00000000ffffffa6 RBX: ff1100000aff31c0 RCX: 1ff400000010adfc
[   10.017853][  T206] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aff3278
[   10.018174][  T206] RBP: ff1100000d38c000 R08: 1fe22000015fe650 R09: ff1100000cf10b80
[   10.018496][  T206] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.018824][  T206] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   10.019138][  T206] FS:  00007fc864c13840(0000) GS:ff1100009dab0000(0000) knlGS:0000000000000000
[   10.019504][  T206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.019805][  T206] CR2: 000000000042ebe0 CR3: 000000000f14f006 CR4: 0000000000771ef0
[   10.020118][  T206] PKRU: 55555554
[   10.020338][  T206] Call Trace:
[   10.020558][  T206]  <TASK>
[   10.020760][  T206]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.021018][  T206]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.021238][  T206]  __dev_notify_flags (net/core/dev.c:9787)
[   10.021494][  T206]  ? netif_change_name (net/core/dev.c:1495)
[   10.021760][  T206]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   10.022010][  T206]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.022266][  T206]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   10.022522][  T206]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   10.022784][  T206]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.023031][  T206]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.023288][  T206]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.023554][  T206]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.023820][  T206]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.024066][  T206]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.024323][  T206]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.024575][  T206]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.024836][  T206]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.025080][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.025343][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.025597][  T206]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.025856][  T206]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.026102][  T206]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.026358][  T206]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.026611][  T206]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.026873][  T206]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.027116][  T206]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.027347][  T206]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.027540][  T206]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.027744][  T206]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.027937][  T206]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.028125][  T206]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.028323][  T206]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.028525][  T206]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.028732][  T206]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.028922][  T206]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.029114][  T206]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.029313][  T206]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.029514][  T206]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.029720][  T206]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.029909][  T206]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.030130][  T206]  ? move_addr_to_kernel (net/socket.c:258)
[   10.030335][  T206]  ___sys_sendmsg (net/socket.c:2752)
[   10.030532][  T206]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.030737][  T206]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.030935][  T206]  ? 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))
[   10.031126][  T206]  __sys_sendmsg (net/socket.c:2784)
[   10.031325][  T206]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.031528][  T206]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.031734][  T206]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.031924][  T206]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.032113][  T206]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.032309][  T206]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.032506][  T206]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.032741][  T206] RIP: 0033:0x7fc864e4d08e
[   10.032935][  T206] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.033486][  T206] RSP: 002b:00007ffcaa9b1880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.033759][  T206] RAX: ffffffffffffffda RBX: 00007ffcaa9b2018 RCX: 00007fc864e4d08e
[   10.034015][  T206] RDX: 0000000000000000 RSI: 00007ffcaa9b1930 RDI: 0000000000000005
[   10.034286][  T206] RBP: 00007ffcaa9b1890 R08: 0000000000000000 R09: 0000000000000000
[   10.034550][  T206] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[   10.034820][  T206] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcaa9b1ff0
| [   10.188246][  T212] ------------[ cut here ]------------
| [   10.188483][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/212
| [   10.188803][  T212] Modules linked in: veth
| [   10.189327][  T212] Tainted: [W]=WARN
[   10.189497][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.189770][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.190025][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e4 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e4 f0 ff       	call   0xfffffffffff0e474
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.190653][  T212] RSP: 0018:ffa00000006a6e30 EFLAGS: 00010286
[   10.190983][  T212] RAX: 00000000ffffffa6 RBX: ff1100000a2ae200 RCX: 1ff40000000d4d8c
[   10.191340][  T212] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a2ae2b8
[   10.191661][  T212] RBP: ff1100000cfbc000 R08: 1fe2200001455c58 R09: ff1100000cff2e80
[   10.191953][  T212] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.192237][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000bf37500
[   10.192514][  T212] FS:  00007f84c9c2d840(0000) GS:ff1100009dab0000(0000) knlGS:0000000000000000
[   10.192831][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.193063][  T212] CR2: 000000000042ebe0 CR3: 000000000d09d002 CR4: 0000000000771ef0
[   10.193344][  T212] PKRU: 55555554
[   10.193510][  T212] Call Trace:
[   10.193671][  T212]  <TASK>
[   10.193809][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.194009][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.194221][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.194397][  T212]  ? ref_tracker_alloc (./include/linux/spinlock.h:408 (discriminator 3) lib/ref_tracker.c:281 (discriminator 3))
[   10.194603][  T212]  __dev_notify_flags (net/core/dev.c:9787)
[   10.194815][  T212]  ? ref_tracker_dir_print (lib/ref_tracker.c:200)
[   10.195039][  T212]  ? 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)
[   10.195250][  T212]  ? netif_change_name (net/core/dev.c:1495)
[   10.195453][  T212]  ? rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.195650][  T212]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.195862][  T212]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.196062][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.196274][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.196478][  T212]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.196674][  T212]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   10.196885][  T212]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.197084][  T212]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[   10.197293][  T212] veth_newlink (drivers/net/veth.c:1871) veth
[   10.197505][  T212]  ? veth_poll_controller (drivers/net/veth.c:1470) veth
[   10.197758][  T212]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.197960][  T212]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.198158][  T212]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.198378][  T212]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[   10.198584][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[   10.198799][  T212]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   10.198996][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.199204][  T212]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[   10.199404][  T212]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[   10.199614][  T212]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.199824][  T212]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.200019][  T212]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.200231][  T212]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.200439][  T212]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.200639][  T212]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.200848][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.201047][  T212]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.201252][  T212]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.201455][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.201658][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.201873][  T212]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.202073][  T212]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.202281][  T212]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.202487][  T212]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.202684][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.202900][  T212]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.203098][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.203307][  T212]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.203510][  T212]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.203727][  T212]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.203926][  T212]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.204121][  T212]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.204327][  T212]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.204535][  T212]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.204748][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.204948][  T212]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.205149][  T212]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.205358][  T212]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.205657][  T212]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.205872][  T212]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.206068][  T212]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.206310][  T212]  ? move_addr_to_kernel (net/socket.c:258)
[   10.206522][  T212]  ___sys_sendmsg (net/socket.c:2752)
[   10.206750][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.206949][  T212]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.207164][  T212]  ? 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))
[   10.207368][  T212]  __sys_sendmsg (net/socket.c:2784)
[   10.207573][  T212]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.207788][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.207986][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.208186][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.208384][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.208584][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.208797][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.209030][  T212] RIP: 0033:0x7f84c9e6708e
[   10.209247][  T212] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.209830][  T212] RSP: 002b:00007ffdb00b6730 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.210098][  T212] RAX: ffffffffffffffda RBX: 00007ffdb00b6ec8 RCX: 00007f84c9e6708e
[   10.210375][  T212] RDX: 0000000000000000 RSI: 00007ffdb00b67e0 RDI: 0000000000000005
[   10.210648][  T212] RBP: 00007ffdb00b6740 R08: 0000000000000000 R09: 0000000000000000
[   10.210956][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc
[   10.211237][  T212] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdb00b6ea0
| [   10.227044][  T212] ------------[ cut here ]------------
| [   10.227271][  T212] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/212
| [   10.227615][  T212] Modules linked in: veth
| [   10.228154][  T212] Tainted: [W]=WARN
[   10.228320][  T212] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.228563][  T212] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.228812][  T212] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e4 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e4 f0 ff       	call   0xfffffffffff0e474
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e4 f0 ff       	call   0xfffffffffff0e44a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.229369][  T212] RSP: 0018:ffa00000006a71b0 EFLAGS: 00010286
[   10.229640][  T212] RAX: 00000000ffffffa6 RBX: ff1100000dbbac80 RCX: 1ff40000000d4dfc
[   10.229913][  T212] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000dbbad38
[   10.230171][  T212] RBP: ff1100000cfb9000 R08: 1fe2200001b775a8 R09: ff1100000cff2e80
[   10.230441][  T212] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.230699][  T212] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   10.230972][  T212] FS:  00007f84c9c2d840(0000) GS:ff1100009dab0000(0000) knlGS:0000000000000000
[   10.231276][  T212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.231513][  T212] CR2: 000000000042ebe0 CR3: 000000000d09d002 CR4: 0000000000771ef0
[   10.231784][  T212] PKRU: 55555554
[   10.231942][  T212] Call Trace:
[   10.232097][  T212]  <TASK>
[   10.232232][  T212]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.232461][  T212]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.232621][  T212]  __dev_notify_flags (net/core/dev.c:9787)
[   10.232826][  T212]  ? netif_change_name (net/core/dev.c:1495)
[   10.233035][  T212]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[   10.233237][  T212]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   10.233441][  T212]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[   10.233633][  T212]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[   10.233836][  T212]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[   10.234028][  T212]  ? __dev_get_by_name (net/core/dev.c:883)
[   10.234229][  T212]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[   10.234438][  T212]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[   10.234634][  T212]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   10.234838][  T212]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.235028][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.235232][  T212]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.235430][  T212]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   10.235619][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.235834][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.236026][  T212]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   10.236229][  T212]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   10.236419][  T212]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   10.236618][  T212]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.236859][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.237054][  T212]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.237253][  T212]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.237459][  T212]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.237649][  T212]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.237871][  T212]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.238066][  T212]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.238268][  T212]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.238469][  T212]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.238662][  T212]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.238870][  T212]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.239083][  T212]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.239286][  T212]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.239488][  T212]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.239681][  T212]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   10.239886][  T212]  ? copy_msghdr_from_user (net/socket.c:2635)
[   10.240078][  T212]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   10.240314][  T212]  ? move_addr_to_kernel (net/socket.c:258)
[   10.240523][  T212]  ___sys_sendmsg (net/socket.c:2752)
[   10.240727][  T212]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.240918][  T212]  ? copy_msghdr_from_user (net/socket.c:2603)
[   10.241118][  T212]  ? 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))
[   10.241322][  T212]  __sys_sendmsg (net/socket.c:2784)
[   10.241527][  T212]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   10.241735][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.241932][  T212]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.242124][  T212]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.242324][  T212]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.242525][  T212]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.242732][  T212]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.242956][  T212] RIP: 0033:0x7f84c9e6708e
[   10.243157][  T212] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.243734][  T212] RSP: 002b:00007ffdb00b6730 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.243993][  T212] RAX: ffffffffffffffda RBX: 00007ffdb00b6ec8 RCX: 00007f84c9e6708e
[   10.244264][  T212] RDX: 0000000000000000 RSI: 00007ffdb00b67e0 RDI: 0000000000000005
[   10.244536][  T212] RBP: 00007ffdb00b6740 R08: 0000000000000000 R09: 0000000000000000
[   10.244813][  T212] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ccdc


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