======================================
| [  447.260488][ T1518] br0: port 1(veth1) entered forwarding state
| [  447.262080][ T1518] ------------[ cut here ]------------
| [ 447.262429][ T1518] WARNING: CPU: 1 PID: 1518 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) 
| [  447.263081][ T1518] Modules linked in: bridge stp llc 8021q vrf veth
[  447.264121][ T1518] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 447.264520][ T1518] 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) 
[ 447.265008][ T1518] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[  447.266344][ T1518] RSP: 0018:ffffc900026b6ef0 EFLAGS: 00010246
[  447.266970][ T1518] RAX: 0000000000000000 RBX: ffff88800bba2000 RCX: 0000000000000001
[  447.267440][ T1518] RDX: 0000000000000000 RSI: ffffffff8e69b939 RDI: ffffffff8de555e0
[  447.268145][ T1518] RBP: ffffc900026b6fe0 R08: 0000000000000000 R09: 0000000000000000
[  447.268923][ T1518] R10: ffffc900026b7010 R11: ffffffff8f4a8918 R12: 1ffff920004d6de2
[  447.269509][ T1518] R13: 00000000000005dc R14: ffffc900026b7010 R15: ffff88800bba2f08
[  447.270167][ T1518] FS:  00007fc4b46d3800(0000) GS:ffff8880a5b37000(0000) knlGS:0000000000000000
[  447.271094][ T1518] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  447.271802][ T1518] CR2: 00000000004e5aa8 CR3: 000000000a30b002 CR4: 0000000000772ef0
[  447.272647][ T1518] PKRU: 55555554
[  447.273058][ T1518] Call Trace:
[  447.273466][ T1518]  <TASK>
[ 447.273778][ T1518] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 447.274328][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.274879][ T1518] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 447.275471][ T1518] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 447.276006][ T1518] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 447.276413][ T1518] netif_set_mtu (net/core/dev.c:9652) 
[ 447.276979][ T1518] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 447.277584][ T1518] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 447.278333][ T1518] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 447.278790][ T1518] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 447.279504][ T1518] br_add_if (net/bridge/br_if.c:697) bridge 
[ 447.279922][ T1518] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 447.280325][ T1518] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 447.280683][ T1518] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 447.281078][ T1518] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 447.281390][ T1518] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 447.281806][ T1518] ? __kernel_text_address (kernel/extable.c:79) 
[ 447.282193][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.282599][ T1518] ? __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) 
[ 447.282932][ T1518] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 447.283413][ T1518] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.283864][ T1518] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.284171][ T1518] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 447.284476][ T1518] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 447.284907][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.285215][ T1518] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 447.285518][ T1518] ? __create_object (mm/kmemleak.c:771) 
[ 447.285964][ T1518] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 447.286331][ T1518] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 447.286765][ T1518] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 447.287420][ T1518] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 447.287996][ T1518] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 447.288546][ T1518] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 447.289113][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.289693][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.290284][ T1518] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 447.290874][ T1518] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 447.291424][ T1518] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 447.291982][ T1518] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 447.292521][ T1518] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 447.293103][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.293667][ T1518] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 447.294217][ T1518] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 447.294880][ T1518] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 447.295461][ T1518] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 447.296043][ T1518] ? 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) 
[ 447.296621][ T1518] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 447.297199][ T1518] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 447.297759][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.298308][ T1518] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 447.298908][ T1518] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 447.299463][ T1518] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 447.300046][ T1518] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 447.300631][ T1518] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 447.301176][ T1518] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 447.301904][ T1518] ___sys_sendmsg (net/socket.c:2670) 
[ 447.302445][ T1518] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 447.303055][ T1518] ? __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) 
[ 447.303743][ T1518] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 447.304298][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.304848][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.305387][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.305930][ T1518] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 447.306465][ T1518] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 447.307044][ T1518] __sys_sendmsg (net/socket.c:2700) 
[ 447.307651][ T1518] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 447.308337][ T1518] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 447.308950][ T1518] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.309504][ T1518] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 447.310074][ T1518] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  447.310786][ T1518] RIP: 0033:0x7fc4b48a01e7
[ 447.311363][ T1518] 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)
[  447.313344][ T1518] RSP: 002b:00007fff48dc3718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  447.314177][ T1518] RAX: ffffffffffffffda RBX: 00007fff48dc3e40 RCX: 00007fc4b48a01e7
[  447.315034][ T1518] RDX: 0000000000000000 RSI: 00007fff48dc3780 RDI: 0000000000000005
[  447.315884][ T1518] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  447.316740][ T1518] R10: 0000000028631910 R11: 0000000000000246 R12: 0000000000000003
[  447.317579][ T1518] R13: 00000000686e6d27 R14: 0000000000499600 R15: 0000000000000000
| [  447.477332][ T1519] ------------[ cut here ]------------
| [ 447.478587][ T1519] WARNING: CPU: 2 PID: 1519 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) 
| [  447.479202][ T1519] Modules linked in: bridge stp llc 8021q vrf veth
| [  447.480413][ T1519] Tainted: [W]=WARN
[  447.480675][ T1519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 447.481067][ T1519] 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) 
[ 447.481396][ T1519] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[  447.482555][ T1519] RSP: 0018:ffffc900025c6ef0 EFLAGS: 00010246
[  447.482962][ T1519] RAX: 0000000000000000 RBX: ffff88800afe2000 RCX: 0000000000000001
[  447.483471][ T1519] RDX: 0000000000000000 RSI: ffffffff8e69b939 RDI: ffffffff8de555e0
[  447.483951][ T1519] RBP: ffffc900025c6fe0 R08: 0000000000000000 R09: 0000000000000000
[  447.484416][ T1519] R10: ffffc900025c7010 R11: ffffffff8f4a8918 R12: 1ffff920004b8de2
[  447.484921][ T1519] R13: 00000000000005dc R14: ffffc900025c7010 R15: ffff88800afe2f08
[  447.485391][ T1519] FS:  00007fb881ec5800(0000) GS:ffff8880a5bb7000(0000) knlGS:0000000000000000
[  447.485942][ T1519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  447.486334][ T1519] CR2: 00000000004e5ab8 CR3: 00000000091bf005 CR4: 0000000000772ef0
[  447.486817][ T1519] PKRU: 55555554
[  447.487058][ T1519] Call Trace:
[  447.487298][ T1519]  <TASK>
[ 447.487469][ T1519] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 447.487801][ T1519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.488126][ T1519] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 447.488446][ T1519] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 447.488847][ T1519] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 447.489164][ T1519] netif_set_mtu (net/core/dev.c:9652) 
[ 447.489488][ T1519] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 447.489822][ T1519] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 447.490263][ T1519] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 447.490503][ T1519] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 447.490945][ T1519] br_add_if (net/bridge/br_if.c:697) bridge 
[ 447.491311][ T1519] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 447.491649][ T1519] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 447.491971][ T1519] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 447.492369][ T1519] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 447.492696][ T1519] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 447.493014][ T1519] ? __kernel_text_address (kernel/extable.c:79) 
[ 447.493334][ T1519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.493665][ T1519] ? __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) 
[ 447.493987][ T1519] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 447.494378][ T1519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.494725][ T1519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.495041][ T1519] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 447.495356][ T1519] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 447.495683][ T1519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.495998][ T1519] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 447.496313][ T1519] ? __create_object (mm/kmemleak.c:771) 
[ 447.496646][ T1519] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 447.496964][ T1519] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 447.497277][ T1519] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 447.497679][ T1519] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 447.498003][ T1519] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 447.498326][ T1519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 447.498651][ T1519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.499014][ T1519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.499362][ T1519] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 447.499691][ T1519] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 447.500013][ T1519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 447.500370][ T1519] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 447.500737][ T1519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 447.501075][ T1519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.501395][ T1519] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 447.501735][ T1519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 447.502076][ T1519] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 447.502402][ T1519] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 447.502726][ T1519] ? 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) 
[ 447.503042][ T1519] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 447.503362][ T1519] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 447.503689][ T1519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.504018][ T1519] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 447.504335][ T1519] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 447.504681][ T1519] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 447.505036][ T1519] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 447.505355][ T1519] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 447.505683][ T1519] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 447.506085][ T1519] ___sys_sendmsg (net/socket.c:2670) 
[ 447.506403][ T1519] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 447.506727][ T1519] ? __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) 
[ 447.507114][ T1519] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 447.507433][ T1519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.507777][ T1519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 447.508100][ T1519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 447.508415][ T1519] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 447.508745][ T1519] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 447.509090][ T1519] __sys_sendmsg (net/socket.c:2700) 
[ 447.509402][ T1519] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 447.509868][ T1519] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 447.510194][ T1519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 447.510510][ T1519] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 447.510861][ T1519] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  447.511255][ T1519] RIP: 0033:0x7fb8820921e7
[ 447.511591][ T1519] 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)
[  447.512692][ T1519] RSP: 002b:00007fffc3fc31b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  447.513166][ T1519] RAX: ffffffffffffffda RBX: 00007fffc3fc38e0 RCX: 00007fb8820921e7
[  447.513647][ T1519] RDX: 0000000000000000 RSI: 00007fffc3fc3220 RDI: 0000000000000005
[  447.514139][ T1519] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  447.514648][ T1519] R10: 000000001f299910 R11: 0000000000000246 R12: 0000000000000003


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