======================================
| [  446.038153][ T1517] br0: port 1(veth1) entered forwarding state
| [  446.040365][ T1517] ------------[ cut here ]------------
| [ 446.040695][ T1517] WARNING: CPU: 3 PID: 1517 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) 
| [  446.041357][ T1517] Modules linked in: bridge stp llc 8021q vrf veth
[  446.042477][ T1517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 446.042865][ T1517] 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) 
[ 446.043231][ T1517] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   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 1a 63 7b 00       	call   0x7b633b
  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
[  446.044494][ T1517] RSP: 0018:ffffc900004d6ef0 EFLAGS: 00010246
[  446.044907][ T1517] RAX: 0000000000000000 RBX: ffff8880124ca000 RCX: 0000000000000001
[  446.045378][ T1517] RDX: 0000000000000000 RSI: ffffffff9be9b941 RDI: ffffffff9b6555e0
[  446.045864][ T1517] RBP: ffffc900004d6fe0 R08: 0000000000000000 R09: 0000000000000000
[  446.046358][ T1517] R10: ffffc900004d7010 R11: ffffffff9cca8918 R12: 1ffff9200009ade2
[  446.046842][ T1517] R13: 00000000000005dc R14: ffffc900004d7010 R15: ffff8880124caf08
[  446.047343][ T1517] FS:  00007fbf12795800(0000) GS:ffff888098437000(0000) knlGS:0000000000000000
[  446.047897][ T1517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  446.048291][ T1517] CR2: 00000000004e5aa8 CR3: 0000000016f68003 CR4: 0000000000772ef0
[  446.048787][ T1517] PKRU: 55555554
[  446.049038][ T1517] Call Trace:
[  446.049279][ T1517]  <TASK>
[ 446.049451][ T1517] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 446.049777][ T1517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.050125][ T1517] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 446.050483][ T1517] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 446.050894][ T1517] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 446.051577][ T1517] netif_set_mtu (net/core/dev.c:9652) 
[ 446.051929][ T1517] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 446.052270][ T1517] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 446.052715][ T1517] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 446.052967][ T1517] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 446.053415][ T1517] br_add_if (net/bridge/br_if.c:697) bridge 
[ 446.053786][ T1517] do_set_master (net/core/rtnetlink.c:2948) 
[ 446.054130][ T1517] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 446.054448][ T1517] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 446.054856][ T1517] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 446.055190][ T1517] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 446.055497][ T1517] ? __kernel_text_address (kernel/extable.c:79) 
[ 446.055822][ T1517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.056149][ T1517] ? __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) 
[ 446.056462][ T1517] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 446.056847][ T1517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 446.057192][ T1517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 446.057502][ T1517] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 446.057809][ T1517] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 446.058128][ T1517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.058437][ T1517] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 446.058743][ T1517] ? __create_object (mm/kmemleak.c:771) 
[ 446.059076][ T1517] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 446.059384][ T1517] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 446.059709][ T1517] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 446.060105][ T1517] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 446.060422][ T1517] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 446.060749][ T1517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 446.061066][ T1517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.061383][ T1517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.061703][ T1517] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 446.062040][ T1517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 446.062364][ T1517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 446.062678][ T1517] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 446.062997][ T1517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 446.063315][ T1517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.063647][ T1517] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 446.063975][ T1517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 446.064288][ T1517] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 446.064632][ T1517] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 446.064960][ T1517] ? 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) 
[ 446.065275][ T1517] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 446.065593][ T1517] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 446.065910][ T1517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.066228][ T1517] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 446.066540][ T1517] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 446.066864][ T1517] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 446.067217][ T1517] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 446.067547][ T1517] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 446.067861][ T1517] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 446.068273][ T1517] ___sys_sendmsg (net/socket.c:2670) 
[ 446.068587][ T1517] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 446.068938][ T1517] ? __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) 
[ 446.069344][ T1517] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 446.069663][ T1517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.069984][ T1517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.070299][ T1517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.070905][ T1517] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 446.071218][ T1517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 446.071534][ T1517] __sys_sendmsg (net/socket.c:2700) 
[ 446.071844][ T1517] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 446.072244][ T1517] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 446.072565][ T1517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 446.072905][ T1517] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 446.073225][ T1517] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  446.073613][ T1517] RIP: 0033:0x7fbf129621e7
[ 446.074179][ T1517] 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)
[  446.075528][ T1517] RSP: 002b:00007fffc76d0918 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  446.076005][ T1517] RAX: ffffffffffffffda RBX: 00007fffc76d1040 RCX: 00007fbf129621e7
[  446.076474][ T1517] RDX: 0000000000000000 RSI: 00007fffc76d0980 RDI: 0000000000000005
[  446.077214][ T1517] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  446.077696][ T1517] R10: 00000000155f6910 R11: 0000000000000246 R12: 0000000000000003
[  446.078169][ T1517] R13: 00000000686e1980 R14: 0000000000499600 R15: 0000000000000000
| [  446.217706][ T1518] ------------[ cut here ]------------
| [ 446.218060][ T1518] WARNING: CPU: 2 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) 
| [  446.219007][ T1518] Modules linked in: bridge stp llc 8021q vrf veth
| [  446.220082][ T1518] Tainted: [W]=WARN
[  446.220336][ T1518] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 446.220749][ 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) 
[ 446.221857][ T1518] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   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 1a 63 7b 00       	call   0x7b633b
  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
[  446.223191][ T1518] RSP: 0018:ffffc90002766ef0 EFLAGS: 00010246
[  446.223615][ T1518] RAX: 0000000000000000 RBX: ffff8880128ba000 RCX: 0000000000000001
[  446.224100][ T1518] RDX: 0000000000000000 RSI: ffffffff9be9b941 RDI: ffffffff9b6555e0
[  446.224575][ T1518] RBP: ffffc90002766fe0 R08: 0000000000000000 R09: 0000000000000000
[  446.225075][ T1518] R10: ffffc90002767010 R11: ffffffff9cca8918 R12: 1ffff920004ecde2
[  446.225546][ T1518] R13: 00000000000005dc R14: ffffc90002767010 R15: ffff8880128baf08
[  446.226027][ T1518] FS:  00007f63d7f92800(0000) GS:ffff8880983b7000(0000) knlGS:0000000000000000
[  446.226578][ T1518] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  446.227001][ T1518] CR2: 00000000004e5ab8 CR3: 0000000016c49003 CR4: 0000000000772ef0
[  446.227530][ T1518] PKRU: 55555554
[  446.227777][ T1518] Call Trace:
[  446.228038][ T1518]  <TASK>
[ 446.228213][ T1518] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 446.228540][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.228869][ T1518] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 446.229213][ T1518] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 446.229619][ T1518] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 446.229958][ T1518] netif_set_mtu (net/core/dev.c:9652) 
[ 446.230278][ T1518] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 446.230608][ T1518] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 446.231088][ T1518] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 446.231375][ T1518] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 446.231815][ T1518] br_add_if (net/bridge/br_if.c:697) bridge 
[ 446.232209][ T1518] do_set_master (net/core/rtnetlink.c:2948) 
[ 446.232537][ T1518] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 446.232862][ T1518] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 446.233280][ T1518] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 446.233605][ T1518] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 446.233950][ T1518] ? __kernel_text_address (kernel/extable.c:79) 
[ 446.234277][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.234609][ 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) 
[ 446.234959][ T1518] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 446.235386][ T1518] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 446.235711][ T1518] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 446.236048][ T1518] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 446.236367][ T1518] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 446.236686][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.237030][ T1518] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 446.237354][ T1518] ? __create_object (mm/kmemleak.c:771) 
[ 446.237679][ T1518] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 446.238010][ T1518] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 446.238331][ T1518] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 446.238724][ T1518] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 446.239086][ T1518] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 446.239443][ T1518] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 446.239773][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.240121][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.240440][ T1518] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 446.240754][ T1518] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 446.241094][ T1518] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 446.241411][ T1518] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 446.241731][ T1518] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 446.242073][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.242396][ T1518] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 446.242716][ T1518] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 446.243062][ T1518] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 446.243426][ T1518] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 446.243742][ 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) 
[ 446.244076][ T1518] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 446.244410][ T1518] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 446.244728][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.245093][ T1518] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 446.245420][ T1518] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 446.245739][ T1518] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 446.246083][ T1518] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 446.246424][ T1518] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 446.246739][ T1518] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 446.247212][ T1518] ___sys_sendmsg (net/socket.c:2670) 
[ 446.247582][ T1518] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 446.247934][ 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) 
[ 446.248345][ T1518] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 446.248677][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.249030][ T1518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 446.249375][ T1518] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 446.249705][ 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) 
[ 446.250039][ T1518] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 446.250389][ T1518] __sys_sendmsg (net/socket.c:2700) 
[ 446.250704][ T1518] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 446.251120][ T1518] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 446.251484][ T1518] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 446.251807][ T1518] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 446.252151][ T1518] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  446.252546][ T1518] RIP: 0033:0x7f63d815f1e7
[ 446.252886][ 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)
[  446.253999][ T1518] RSP: 002b:00007ffd17494ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  446.254481][ T1518] RAX: ffffffffffffffda RBX: 00007ffd174955d0 RCX: 00007f63d815f1e7
[  446.254978][ T1518] RDX: 0000000000000000 RSI: 00007ffd17494f10 RDI: 0000000000000005
[  446.255488][ T1518] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  446.255971][ T1518] R10: 0000000035633910 R11: 0000000000000246 R12: 0000000000000003


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