======================================
| [   81.216081][  T716] veth0: entered promiscuous mode
| [   81.219739][  T716] ------------[ cut here ]------------
| [ 81.220145][ T716] WARNING: CPU: 1 PID: 716 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   81.221767][  T716] Modules linked in: bridge stp llc sctp ip6_udp_tunnel udp_tunnel xt_conntrack nft_compat sch_netem cls_u32 sch_htb nf_conntrack_netlink tcp_diag inet_diag nf_conntrack_ftp nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
[   81.223935][  T716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 81.224341][ T716] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 81.224668][ T716] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   81.225786][  T716] RSP: 0018:ffffc90000506ef0 EFLAGS: 00010246
[   81.226183][  T716] RAX: 0000000000000000 RBX: ffff88800eb5a000 RCX: 0000000000000001
[   81.226661][  T716] RDX: 0000000000000000 RSI: ffffffff9509f52e RDI: ffffffff9485a5a0
[   81.227125][  T716] RBP: ffffc90000506fe0 R08: 0000000000000000 R09: 0000000000000000
[   81.227603][  T716] R10: ffffc90000507010 R11: ffffffff955798a0 R12: 1ffff920000a0de2
[   81.228075][  T716] R13: 00000000000005dc R14: ffffc90000507010 R15: ffff88800eb5af08
[   81.228550][  T716] FS:  00007f9799179800(0000) GS:ffff88809f127000(0000) knlGS:0000000000000000
[   81.229095][  T716] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.229498][  T716] CR2: 00000000004e5aa0 CR3: 00000000108f4002 CR4: 0000000000772ef0
[   81.229975][  T716] PKRU: 55555554
[   81.230219][  T716] Call Trace:
[   81.230454][  T716]  <TASK>
[ 81.230616][ T716] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 81.230934][ T716] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.231264][ T716] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.231578][ T716] netif_set_mtu (net/core/dev.c:9652) 
[ 81.232082][ T716] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 81.232421][ T716] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 81.232663][ T716] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 81.233113][ T716] br_add_if (net/bridge/br_if.c:697) bridge 
[ 81.233486][ T716] do_set_master (net/core/rtnetlink.c:2948) 
[ 81.233803][ T716] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 81.234119][ T716] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 81.234534][ T716] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 81.234848][ T716] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 81.235156][ T716] ? __kernel_text_address (kernel/extable.c:79) 
[ 81.235483][ T716] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.235796][ T716] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 81.236106][ T716] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 81.236499][ T716] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.236809][ T716] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.237116][ T716] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 81.237444][ T716] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 81.237760][ T716] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.238072][ T716] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 81.238388][ T716] ? __create_object (mm/kmemleak.c:771) 
[ 81.238735][ T716] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 81.239053][ T716] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 81.239375][ T716] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 81.239770][ T716] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 81.240091][ T716] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 81.240418][ T716] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 81.240754][ T716] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.241075][ T716] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.241400][ T716] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 81.241736][ T716] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 81.242052][ T716] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 81.242377][ T716] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 81.242691][ T716] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 81.243029][ T716] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.243358][ T716] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 81.243669][ T716] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 81.243982][ T716] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 81.244319][ T716] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 81.244634][ T716] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 81.244946][ T716] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 81.245280][ T716] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 81.245599][ T716] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 81.245913][ T716] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 81.246241][ T716] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 81.246560][ T716] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 81.246879][ T716] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 81.247209][ T716] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 81.247520][ T716] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 81.247916][ T716] ___sys_sendmsg (net/socket.c:2670) 
[ 81.248248][ T716] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 81.248557][ T716] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 81.248966][ T716] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 81.249299][ T716] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.249611][ T716] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.249923][ T716] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.250243][ T716] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 81.250551][ T716] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 81.250865][ T716] __sys_sendmsg (net/socket.c:2700) 
[ 81.251172][ T716] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 81.251862][ T716] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 81.252207][ T716] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.252520][ T716] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 81.252847][ T716] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   81.253474][  T716] RIP: 0033:0x7f97993461e7
[ 81.253802][ T716] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   81.255175][  T716] RSP: 002b:00007fff78ba1638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   81.255655][  T716] RAX: ffffffffffffffda RBX: 00007fff78ba1d70 RCX: 00007f97993461e7
[   81.256372][  T716] RDX: 0000000000000000 RSI: 00007fff78ba16a0 RDI: 0000000000000005
[   81.256837][  T716] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   81.257312][  T716] R10: 0000000039496910 R11: 0000000000000246 R12: 0000000000000003
[   81.258007][  T716] R13: 00000000686e1e58 R14: 0000000000499600 R15: 0000000000000000
| [   81.402568][  T717] ------------[ cut here ]------------
| [ 81.402946][ T717] WARNING: CPU: 2 PID: 717 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   81.403586][  T717] Modules linked in: bridge stp llc sctp ip6_udp_tunnel udp_tunnel xt_conntrack nft_compat sch_netem cls_u32 sch_htb nf_conntrack_netlink tcp_diag inet_diag nf_conntrack_ftp nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [   81.405611][  T717] Tainted: [W]=WARN
[   81.405861][  T717] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 81.406271][ T717] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 81.406603][ T717] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   81.408594][  T717] RSP: 0018:ffffc90000596ef0 EFLAGS: 00010246
[   81.409005][  T717] RAX: 0000000000000000 RBX: ffff88800eb5a000 RCX: 0000000000000001
[   81.409494][  T717] RDX: 0000000000000000 RSI: ffffffff9509f52e RDI: ffffffff9485a5a0
[   81.409970][  T717] RBP: ffffc90000596fe0 R08: 0000000000000000 R09: 0000000000000000
[   81.410480][  T717] R10: ffffc90000597010 R11: ffffffff955798a0 R12: 1ffff920000b2de2
[   81.410958][  T717] R13: 00000000000005dc R14: ffffc90000597010 R15: ffff88800eb5af08
[   81.411447][  T717] FS:  00007f661a97a800(0000) GS:ffff88809f1a7000(0000) knlGS:0000000000000000
[   81.412008][  T717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.412435][  T717] CR2: 00000000004e5aa8 CR3: 0000000004e5c005 CR4: 0000000000772ef0
[   81.412923][  T717] PKRU: 55555554
[   81.413170][  T717] Call Trace:
[   81.413432][  T717]  <TASK>
[ 81.413609][ T717] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 81.413937][ T717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.414292][ T717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.414631][ T717] netif_set_mtu (net/core/dev.c:9652) 
[ 81.414957][ T717] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 81.415309][ T717] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 81.415564][ T717] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 81.416012][ T717] br_add_if (net/bridge/br_if.c:697) bridge 
[ 81.416397][ T717] do_set_master (net/core/rtnetlink.c:2948) 
[ 81.416724][ T717] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 81.417058][ T717] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 81.417473][ T717] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 81.417798][ T717] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 81.418117][ T717] ? __kernel_text_address (kernel/extable.c:79) 
[ 81.418465][ T717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.418795][ T717] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 81.419114][ T717] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 81.419528][ T717] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.419853][ T717] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.420174][ T717] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 81.420513][ T717] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 81.420838][ T717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.421158][ T717] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 81.421487][ T717] ? __create_object (mm/kmemleak.c:771) 
[ 81.421811][ T717] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 81.422139][ T717] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 81.422482][ T717] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 81.422895][ T717] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 81.423236][ T717] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 81.423565][ T717] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 81.423886][ T717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.424225][ T717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.424545][ T717] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 81.424873][ T717] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 81.425205][ T717] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 81.425527][ T717] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 81.425851][ T717] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 81.426178][ T717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.426532][ T717] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 81.426857][ T717] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 81.427196][ T717] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 81.427534][ T717] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 81.427857][ T717] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 81.428182][ T717] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 81.428521][ T717] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 81.428852][ T717] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 81.429175][ T717] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 81.429517][ T717] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 81.429842][ T717] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 81.430169][ T717] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 81.430510][ T717] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 81.430840][ T717] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 81.431257][ T717] ___sys_sendmsg (net/socket.c:2670) 
[ 81.431575][ T717] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 81.431900][ T717] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 81.432305][ T717] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 81.432627][ T717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.432967][ T717] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 81.433301][ T717] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 81.433622][ T717] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 81.433942][ T717] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 81.434297][ T717] __sys_sendmsg (net/socket.c:2700) 
[ 81.434622][ T717] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 81.435021][ T717] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 81.435365][ T717] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 81.435689][ T717] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 81.436017][ T717] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   81.436424][  T717] RIP: 0033:0x7f661ab471e7
[ 81.436754][ T717] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   81.437884][  T717] RSP: 002b:00007ffc6948c7a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   81.438388][  T717] RAX: ffffffffffffffda RBX: 00007ffc6948cee0 RCX: 00007f661ab471e7
[   81.438875][  T717] RDX: 0000000000000000 RSI: 00007ffc6948c810 RDI: 0000000000000005
[   81.439361][  T717] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   81.439834][  T717] R10: 000000000e096910 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if