======================================
| xx__-> [    2.193111] ------------[ cut here ]------------
| [    2.193169] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: unshare/159
| [    2.193225] Modules linked in:
| [    2.193316] Tainted: [W]=WARN
[    2.193339] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.193378] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.193411] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.193527] RSP: 0018:ff49148cc03efcc8 EFLAGS: 00010286
[    2.193564] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.193615] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2ae90c02fa7c00
[    2.193664] RBP: 0000000000000000 R08: ff2ae90c041e4fd0 R09: ff2ae90c0544202c
[    2.193719] R10: ff2ae90c03015118 R11: fefefefefefefeff R12: 0000000000000000
[    2.193762] R13: 0000000000000010 R14: ff2ae90c03015000 R15: ff2ae90c02fa7c00
[    2.193814] FS:  00007f631b153740(0000) GS:ff2ae90cb5a16000(0000) knlGS:0000000000000000
[    2.193861] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.193898] CR2: 000055c8edf8f310 CR3: 0000000004350005 CR4: 0000000000771ef0
[    2.193946] PKRU: 55555554
[    2.193963] Call Trace:
[    2.193989]  <TASK>
[    2.194007]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.194031]  register_netdevice (net/core/dev.c:11488)
[    2.194060]  register_netdev (net/core/dev.c:11552)
[    2.194089]  loopback_net_init (drivers/net/loopback.c:218)
[    2.194119]  ? vsock_sysctl_init_net (net/vmw_vsock/af_vsock.c:2933 net/vmw_vsock/af_vsock.c:2973)
[    2.194153]  ops_init (net/core/net_namespace.c:137)
[    2.194176]  setup_net (net/core/net_namespace.c:446)
[    2.194203]  copy_net_ns (net/core/net_namespace.c:579)
[    2.194236]  create_new_namespaces (kernel/nsproxy.c:132)
[    2.194273]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    2.194310]  ksys_unshare (kernel/fork.c:3243)
[    2.194335]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    2.194356]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.194385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.194419] RIP: 0033:0x7f631b24ebcb
[    2.194442] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    2.194556] RSP: 002b:00007ffe4d7b37d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[    2.194605] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f631b24ebcb
[    2.194650] RDX: 0000000000000000 RSI: 00007ffe4d7b3540 RDI: 0000000040000000
[    2.194700] RBP: 00007ffe4d7b3b60 R08: 00007ffe4d7b3730 R09: 0000000000000000
[    2.194736] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[    2.194787] R13: 0000000000000000 R14: 00000000ffffffff R15: 000055c8edf92b68
| [    2.198533] ------------[ cut here ]------------
| [    2.198574] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/159
| [    2.198634] Modules linked in:
| [    2.198724] Tainted: [W]=WARN
[    2.198746] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.198785] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.198815] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.198921] RSP: 0018:ff49148cc03efd68 EFLAGS: 00010286
[    2.198953] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.199001] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2ae90c02fa7c00
[    2.199050] RBP: 0000000000000000 R08: ff2ae90c02ff0e10 R09: ff2ae90c05447030
[    2.199098] R10: ff2ae90c0427c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.199140] R13: 0000000000000010 R14: ff2ae90c0427c000 R15: ff2ae90c02fa7c00
[    2.199196] FS:  0000000019a15400(0000) GS:ff2ae90cb5a16000(0000) knlGS:0000000000000000
[    2.199243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.199278] CR2: 00007fa4d3bc8000 CR3: 0000000003176006 CR4: 0000000000771ef0
[    2.199327] PKRU: 55555554
[    2.199349] Call Trace:
[    2.199364]  <TASK>
[    2.199381]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.199412]  register_netdevice (net/core/dev.c:11488)
[    2.199444]  __tun_chr_ioctl (drivers/net/tun.c:2876 drivers/net/tun.c:3157)
[    2.199471]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[    2.199502]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.199533]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.199563]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.199600] RIP: 0033:0x47cc8d
[    2.199628] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.199740] RSP: 002b:00007ffc19a10c40 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.199786] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.199827] RDX: 00007ffc19a10cc0 RSI: 00000000400454ca RDI: 0000000000000005
[    2.199873] RBP: 00007ffc19a10c90 R08: 0000000000000000 R09: 0000000000000000
[    2.199924] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc19a11198
[    2.199967] R13: 00007ffc19a11218 R14: 0000000000000002 R15: 0000000000543540
| [    2.200095] ------------[ cut here ]------------
| [    2.200125] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/159
| [    2.200175] Modules linked in:
| [    2.200259] Tainted: [W]=WARN
[    2.200279] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.200318] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.200349] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.200450] RSP: 0018:ff49148cc03efd60 EFLAGS: 00010286
[    2.200482] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[    2.200535] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2ae90c02fa7c00
[    2.200583] RBP: 0000000000000002 R08: ff2ae90c02ff0e10 R09: ff2ae90c05447030
[    2.200623] R10: ff2ae90c0427c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.200672] R13: 0000000000000010 R14: ff2ae90c0427c000 R15: ff2ae90c02fa7c00
[    2.200719] FS:  0000000019a15400(0000) GS:ff2ae90cb5a16000(0000) knlGS:0000000000000000
[    2.200768] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.200809] CR2: 00007fa4d3bc8000 CR3: 0000000003176006 CR4: 0000000000771ef0
[    2.200860] PKRU: 55555554
[    2.200876] Call Trace:
[    2.200893]  <TASK>
[    2.200910]  rtnetlink_event (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:7121)
[    2.200938]  notifier_call_chain (kernel/notifier.c:85)
[    2.200967]  netdev_update_features (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1590 net/core/dev.c:11099 net/core/dev.c:11096)
[    2.201005]  __tun_chr_ioctl (drivers/net/tun.c:2963 drivers/net/tun.c:3285)
[    2.201031]  ? file_init_path (./include/linux/pagemap.h:126 fs/file_table.c:368)
[    2.201056]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.201080]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.201103]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.201142] RIP: 0033:0x47cc8d
[    2.201165] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.201267] RSP: 002b:00007ffc19a10c80 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.201309] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.201349] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[    2.201397] RBP: 00007ffc19a10cd0 R08: 0000000000000000 R09: 0000000000000000
[    2.201447] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc19a11198
[    2.201494] R13: 00007ffc19a11218 R14: 0000000000000002 R15: 0000000000543540
| [    2.201615] ------------[ cut here ]------------
| [    2.201650] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/159
| [    2.201706] Modules linked in:
| [    2.201787] Tainted: [W]=WARN
[    2.201810] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.201850] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    2.201883] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    2.201999] RSP: 0018:ff49148cc03efc10 EFLAGS: 00010286
[    2.202028] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[    2.202072] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2ae90c02fa7c00
[    2.202120] RBP: 0000000000000000 R08: ff2ae90c02ff0e10 R09: ff2ae90c05444030
[    2.202165] R10: ff2ae90c0427c118 R11: fefefefefefefeff R12: 0000000000000000
[    2.202204] R13: 0000000000000010 R14: ff2ae90c0427c000 R15: ff2ae90c02fa7c00
[    2.202253] FS:  0000000019a15400(0000) GS:ff2ae90cb5a16000(0000) knlGS:0000000000000000
[    2.202299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.202335] CR2: 00007fa4d3bc8000 CR3: 0000000003176006 CR4: 0000000000771ef0
[    2.202375] PKRU: 55555554
[    2.202391] Call Trace:
[    2.202408]  <TASK>
[    2.202422]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[    2.202445]  __dev_notify_flags (net/core/dev.c:9787)
[    2.202475]  netif_change_flags (net/core/dev.c:9820)
[    2.202501]  dev_change_flags (net/core/dev_api.c:68)
[    2.202528]  devinet_ioctl (net/ipv4/devinet.c:1199)
[    2.202557]  inet_ioctl (net/ipv4/af_inet.c:1011)
[    2.202581]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    2.202611]  sock_do_ioctl (net/socket.c:1313)
[    2.202643]  __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:597 fs/ioctl.c:583 fs/ioctl.c:583)
[    2.202673]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    2.202698]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    2.202740] RIP: 0033:0x47cc8d
[    2.202768] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
All code
========
   0:	04 25                	add    $0x25,%al
   2:	28 00                	sub    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 45 c8          	mov    %rax,-0x38(%rbp)
   a:	31 c0                	xor    %eax,%eax
   c:	48 8d 45 10          	lea    0x10(%rbp),%rax
  10:	c7 45 b0 10 00 00 00 	movl   $0x10,-0x50(%rbp)
  17:	48 89 45 b8          	mov    %rax,-0x48(%rbp)
  1b:	48 8d 45 d0          	lea    -0x30(%rbp),%rax
  1f:	48 89 45 c0          	mov    %rax,-0x40(%rbp)
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	89 c2                	mov    %eax,%edx		<-- trapping instruction
  2c:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
  31:	77 1a                	ja     0x4d
  33:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
  37:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  3e:	00 00 

Code starting with the faulting instruction
===========================================
   0:	89 c2                	mov    %eax,%edx
   2:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   7:	77 1a                	ja     0x23
   9:	48 8b 45 c8          	mov    -0x38(%rbp),%rax
   d:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
  14:	00 00 
[    2.202870] RSP: 002b:00007ffc19a10c60 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    2.202912] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[    2.202958] RDX: 00007ffc19a10cd0 RSI: 0000000000008914 RDI: 0000000000000006
[    2.203017] RBP: 00007ffc19a10cb0 R08: 0000000000000000 R09: 0000000000000000
[    2.203067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc19a11198
[    2.203113] R13: 00007ffc19a11218 R14: 0000000000000002 R15: 0000000000543540
| [   47.174393] ------------[ cut here ]------------
| [   47.174518] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/159
| [   47.174573] Modules linked in:
| [   47.174658] Tainted: [W]=WARN
[   47.174680] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.174715] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.174746] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.174848] RSP: 0018:ff49148cc03efb58 EFLAGS: 00010286
[   47.174877] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[   47.174911] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2ae90c02faf200
[   47.174955] RBP: 0000000000000000 R08: ff2ae90c02ff0e10 R09: ff2ae90c05444030
[   47.174998] R10: ff2ae90c0427c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.175038] R13: 0000000000000010 R14: ff2ae90c0427c000 R15: ff2ae90c02faf200
[   47.175086] FS:  0000000000000000(0000) GS:ff2ae90cb5a16000(0000) knlGS:0000000000000000
[   47.175128] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.175161] CR2: 00007fa4d3bc8000 CR3: 0000000025c42003 CR4: 0000000000771ef0
[   47.175210] PKRU: 55555554
[   47.175226] Call Trace:
[   47.175242]  <TASK>
[   47.175259]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4560)
[   47.175281]  netif_close_many (net/core/dev.c:1804)
[   47.175307]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   47.175330]  ? __queue_work (kernel/workqueue.c:2401)
[   47.175355]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   47.175382]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   47.175408]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   47.175427]  __fput (fs/file_table.c:510)
[   47.175452]  task_work_run (kernel/task_work.c:233)
[   47.175476]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   47.175499]  ? __x64_sys_close (fs/open.c:1507 fs/open.c:1492 fs/open.c:1492)
[   47.175523]  do_group_exit (kernel/exit.c:1119)
[   47.175545]  get_signal (kernel/signal.c:3037)
[   47.175568]  ? fsnotify_grab_connector (./include/linux/srcu.h:487 fs/notify/mark.c:854)
[   47.175601]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   47.175639]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3000 kernel/rcu/tree.c:3012 kernel/rcu/tree.c:3155)
[   47.175668]  ? __fput (./include/linux/percpu_counter.h:71 ./include/linux/percpu_counter.h:272 fs/file_table.c:99 fs/file_table.c:523)
[   47.175689]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   47.175719]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:318 arch/x86/entry/syscall_64.c:100)
[   47.175746]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.175775] RIP: 0033:0x47fb83
[   47.175797] Code: Unable to access opcode bytes at 0x47fb59.

Code starting with the faulting instruction
===========================================
[   47.175838] RSP: 002b:00007ffc19a10730 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[   47.175878] RAX: 0000000000000000 RBX: 00000000fffffff5 RCX: 000000000047fb83
[   47.175921] RDX: 000000000000000e RSI: baeeb77365fcd7a7 RDI: 0000000000000007
[   47.175963] RBP: 00007ffc19a10c30 R08: 0000000000000041 R09: 0000000019a163e0
[   47.176012] R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000000
[   47.176052] R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000543540
| [   47.176237] ------------[ cut here ]------------
| [   47.176265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/159
| [   47.176312] Modules linked in:
| [   47.176389] Tainted: [W]=WARN
[   47.176409] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.176443] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.176473] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.176570] RSP: 0018:ff49148cc03efbc8 EFLAGS: 00010286
[   47.176600] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.176640] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2ae90c02faf200
[   47.176680] RBP: 0000000000000000 R08: ff2ae90c02ff0e10 R09: ff2ae90c0543e830
[   47.176721] R10: ff2ae90c0427c118 R11: fefefefefefefeff R12: 0000000000000000
[   47.176770] R13: 0000000000000011 R14: ff2ae90c0427c000 R15: ff2ae90c02faf200
[   47.176819] FS:  0000000000000000(0000) GS:ff2ae90cb5a16000(0000) knlGS:0000000000000000
[   47.176862] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.176894] CR2: 00007fa4d3bc8000 CR3: 0000000025c42003 CR4: 0000000000771ef0
[   47.176935] PKRU: 55555554
[   47.176950] Call Trace:
[   47.176963]  <TASK>
[   47.176977]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.177183]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309)
[   47.177244]  __tun_detach (./include/linux/netdevice.h:3455 drivers/net/tun.c:628)
[   47.177267]  tun_chr_close (drivers/net/tun.c:644 drivers/net/tun.c:3505)
[   47.177291]  __fput (fs/file_table.c:510)
[   47.177316]  task_work_run (kernel/task_work.c:233)
[   47.177341]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:976)
[   47.177363]  ? __x64_sys_close (fs/open.c:1507 fs/open.c:1492 fs/open.c:1492)
[   47.177386]  do_group_exit (kernel/exit.c:1119)
[   47.177407]  get_signal (kernel/signal.c:3037)
[   47.177426]  ? fsnotify_grab_connector (./include/linux/srcu.h:487 fs/notify/mark.c:854)
[   47.177455]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   47.177486]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3000 kernel/rcu/tree.c:3012 kernel/rcu/tree.c:3155)
[   47.177514]  ? __fput (./include/linux/percpu_counter.h:71 ./include/linux/percpu_counter.h:272 fs/file_table.c:99 fs/file_table.c:523)
[   47.177537]  exit_to_user_mode_loop (kernel/entry/common.c:64 kernel/entry/common.c:98)
[   47.177569]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:318 arch/x86/entry/syscall_64.c:100)
[   47.177592]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.177618] RIP: 0033:0x47fb83
[   47.177640] Code: Unable to access opcode bytes at 0x47fb59.

Code starting with the faulting instruction
===========================================
[   47.177680] RSP: 002b:00007ffc19a10730 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[   47.177721] RAX: 0000000000000000 RBX: 00000000fffffff5 RCX: 000000000047fb83
[   47.177765] RDX: 000000000000000e RSI: baeeb77365fcd7a7 RDI: 0000000000000007
[   47.177807] RBP: 00007ffc19a10c30 R08: 0000000000000041 R09: 0000000019a163e0
[   47.177856] R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000000
[   47.177897] R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000543540
| [   47.186127] ------------[ cut here ]------------
| [   47.186181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: 1/63
| [   47.186245] Modules linked in:
| [   47.186331] Tainted: [W]=WARN
[   47.186352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.186385] Workqueue: netns cleanup_net
[   47.186406] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   47.186437] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
All code
========
   0:	80 00 00             	addb   $0x0,(%rax)
   3:	00 e8                	add    %ch,%al
   5:	59                   	pop    %rcx
   6:	d9 ff                	fcos
   8:	ff 48 83             	decl   -0x7d(%rax)
   b:	c4                   	(bad)
   c:	38 85 c0 75 18 48    	cmp    %al,0x481875c0(%rbp)
  12:	83 c4 08             	add    $0x8,%esp
  15:	4c 89 f8             	mov    %r15,%rax
  18:	5b                   	pop    %rbx
  19:	5d                   	pop    %rbp
  1a:	41 5c                	pop    %r12
  1c:	41 5d                	pop    %r13
  1e:	41 5e                	pop    %r14
  20:	41 5f                	pop    %r15
  22:	c3                   	ret
  23:	44 8b 48 08          	mov    0x8(%rax),%r9d
  27:	eb b4                	jmp    0xffffffffffffffdd
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	4c 89 fe             	mov    %r15,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 76 b2 fb ff       	call   0xfffffffffffbb2b2
  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:	4c 89 fe             	mov    %r15,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 76 b2 fb ff       	call   0xfffffffffffbb288
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   47.186540] RSP: 0018:ff49148cc022fc78 EFLAGS: 00010286
[   47.186569] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   47.186615] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2ae90c02faec00
[   47.186657] RBP: 0000000000000000 R08: ff2ae90c041e4fd0 R09: ff2ae90c0543982c
[   47.186698] R10: ff2ae90c03015118 R11: fefefefefefefeff R12: 0000000000000000
[   47.186743] R13: 0000000000000011 R14: ff2ae90c03015000 R15: ff2ae90c02faec00
[   47.186790] FS:  0000000000000000(0000) GS:ff2ae90cb5896000(0000) knlGS:0000000000000000
[   47.186839] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.186876] CR2: 00005555847b9340 CR3: 0000000002ebd001 CR4: 0000000000771ef0
[   47.186920] PKRU: 55555554
[   47.186935] Call Trace:
[   47.186950]  <TASK>
[   47.186966]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   47.187000]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   47.187028]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   47.187053]  cleanup_net (net/core/net_namespace.c:702)
[   47.187074]  process_one_work (kernel/workqueue.c:3314)
[   47.187096]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   47.187121]  ? rescuer_thread (kernel/workqueue.c:3672)
[   47.187143]  kthread (kernel/kthread.c:436)
[   47.187167]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))
[   47.187188]  ret_from_fork (arch/x86/kernel/process.c:158)
[   47.187212]  ? kthread_park (kernel/kthread.c:725 (discriminator 4))


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:dev_change_flags
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:__tun_chr_ioctl:__x64_sys_ioctl
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:unregister_netdevice_queue
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:__tun_detach:tun_chr_close
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtnetlink_event:notifier_call_chain:netdev_update_features:__tun_chr_ioctl