======================================
| [  492.041487][ T1968] br0: port 1(veth1) entered forwarding state
| [  492.043352][ T1968] ------------[ cut here ]------------
| [ 492.043689][ T1968] WARNING: CPU: 0 PID: 1968 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) 
| [  492.044320][ T1968] Modules linked in: bridge stp llc 8021q act_gact cls_flower sch_ingress vrf veth
[  492.045540][ T1968] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 492.045952][ T1968] 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) 
[ 492.046274][ T1968] 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
[  492.047385][ T1968] RSP: 0018:ffffc900028d6ef0 EFLAGS: 00010246
[  492.047808][ T1968] RAX: 0000000000000000 RBX: ffff88800b5ba000 RCX: 0000000000000001
[  492.048275][ T1968] RDX: 0000000000000000 RSI: ffffffff96c9b941 RDI: ffffffff964555e0
[  492.048767][ T1968] RBP: ffffc900028d6fe0 R08: 0000000000000000 R09: 0000000000000000
[  492.049242][ T1968] R10: ffffc900028d7010 R11: ffffffff97aa8918 R12: 1ffff9200051ade2
[  492.049726][ T1968] R13: 00000000000005dc R14: ffffc900028d7010 R15: ffff88800b5baf08
[  492.050195][ T1968] FS:  00007f7151ab5800(0000) GS:ffff88809d4b7000(0000) knlGS:0000000000000000
[  492.050759][ T1968] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  492.051151][ T1968] CR2: 00000000004e5aa8 CR3: 000000000e5e2006 CR4: 0000000000772ef0
[  492.051621][ T1968] PKRU: 55555554
[  492.051879][ T1968] Call Trace:
[  492.052125][ T1968]  <TASK>
[ 492.052287][ T1968] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 492.052599][ T1968] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.052942][ T1968] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 492.053246][ T1968] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 492.053632][ T1968] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 492.053978][ T1968] netif_set_mtu (net/core/dev.c:9652) 
[ 492.054293][ T1968] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 492.054613][ T1968] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 492.055072][ T1968] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 492.055306][ T1968] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 492.055734][ T1968] br_add_if (net/bridge/br_if.c:697) bridge 
[ 492.056119][ T1968] do_set_master (net/core/rtnetlink.c:2948) 
[ 492.056434][ T1968] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 492.056795][ T1968] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 492.057198][ T1968] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 492.057506][ T1968] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 492.057835][ T1968] ? __kernel_text_address (kernel/extable.c:79) 
[ 492.058156][ T1968] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.058500][ T1968] ? __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) 
[ 492.058832][ T1968] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 492.059213][ T1968] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.059523][ T1968] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.059848][ T1968] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 492.060160][ T1968] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 492.060468][ T1968] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.060790][ T1968] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 492.061108][ T1968] ? __create_object (mm/kmemleak.c:771) 
[ 492.061418][ T1968] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 492.061726][ T1968] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 492.062060][ T1968] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 492.062457][ T1968] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 492.062779][ T1968] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 492.063104][ T1968] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 492.063412][ T1968] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.063734][ T1968] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.064071][ T1968] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 492.064386][ T1968] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 492.064695][ T1968] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 492.065025][ T1968] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 492.065335][ T1968] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 492.065644][ T1968] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.065984][ T1968] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 492.066300][ T1968] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 492.066608][ T1968] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 492.066930][ T1968] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 492.067248][ T1968] ? 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) 
[ 492.067563][ T1968] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 492.067879][ T1968] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 492.068195][ T1968] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.068507][ T1968] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 492.068824][ T1968] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 492.069151][ T1968] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 492.069467][ T1968] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 492.069789][ T1968] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 492.070111][ T1968] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 492.070506][ T1968] ___sys_sendmsg (net/socket.c:2670) 
[ 492.070817][ T1968] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 492.071140][ T1968] ? __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) 
[ 492.071524][ T1968] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 492.071846][ T1968] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.072191][ T1968] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.072502][ T1968] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.072820][ T1968] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 492.073143][ T1968] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 492.073461][ T1968] __sys_sendmsg (net/socket.c:2700) 
[ 492.073779][ T1968] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 492.074179][ T1968] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 492.074502][ T1968] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.074822][ T1968] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 492.075135][ T1968] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  492.075530][ T1968] RIP: 0033:0x7f7151c821e7
[ 492.075860][ T1968] 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)
[  492.076989][ T1968] RSP: 002b:00007fff40c939e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  492.077474][ T1968] RAX: ffffffffffffffda RBX: 00007fff40c94110 RCX: 00007f7151c821e7
[  492.077945][ T1968] RDX: 0000000000000000 RSI: 00007fff40c93a50 RDI: 0000000000000005
[  492.078426][ T1968] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  492.078900][ T1968] R10: 0000000024bf8910 R11: 0000000000000246 R12: 0000000000000003
[  492.079377][ T1968] R13: 00000000686e4337 R14: 0000000000499600 R15: 0000000000000000
| [  492.219172][ T1970] ------------[ cut here ]------------
| [ 492.219486][ T1970] WARNING: CPU: 1 PID: 1970 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) 
| [  492.220266][ T1970] Modules linked in: bridge stp llc 8021q act_gact cls_flower sch_ingress vrf veth
| [  492.221583][ T1970] Tainted: [W]=WARN
[  492.222014][ T1970] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 492.222411][ T1970] 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) 
[ 492.222733][ T1970] 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
[  492.224172][ T1970] RSP: 0018:ffffc900028d6ef0 EFLAGS: 00010246
[  492.224562][ T1970] RAX: 0000000000000000 RBX: ffff888004e9a000 RCX: 0000000000000001
[  492.225113][ T1970] RDX: 0000000000000000 RSI: ffffffff96c9b941 RDI: ffffffff964555e0
[  492.225569][ T1970] RBP: ffffc900028d6fe0 R08: 0000000000000000 R09: 0000000000000000
[  492.226033][ T1970] R10: ffffc900028d7010 R11: ffffffff97aa8918 R12: 1ffff9200051ade2
[  492.226489][ T1970] R13: 00000000000005dc R14: ffffc900028d7010 R15: ffff888004e9af08
[  492.226958][ T1970] FS:  00007ff5a511a800(0000) GS:ffff88809d537000(0000) knlGS:0000000000000000
[  492.227488][ T1970] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  492.227878][ T1970] CR2: 00000000004e5ab8 CR3: 0000000004dc3001 CR4: 0000000000772ef0
[  492.228336][ T1970] PKRU: 55555554
[  492.228566][ T1970] Call Trace:
[  492.228804][ T1970]  <TASK>
[ 492.228965][ T1970] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 492.229279][ T1970] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.229589][ T1970] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 492.229901][ T1970] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 492.230285][ T1970] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 492.230590][ T1970] netif_set_mtu (net/core/dev.c:9652) 
[ 492.230904][ T1970] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 492.231219][ T1970] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 492.231654][ T1970] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 492.231893][ T1970] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 492.232329][ T1970] br_add_if (net/bridge/br_if.c:697) bridge 
[ 492.232682][ T1970] do_set_master (net/core/rtnetlink.c:2948) 
[ 492.233018][ T1970] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 492.233327][ T1970] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 492.233719][ T1970] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 492.234034][ T1970] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 492.234338][ T1970] ? __kernel_text_address (kernel/extable.c:79) 
[ 492.234647][ T1970] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.234963][ T1970] ? __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) 
[ 492.235272][ T1970] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 492.235650][ T1970] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.235974][ T1970] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.236278][ T1970] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 492.236583][ T1970] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 492.236899][ T1970] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.237205][ T1970] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 492.237507][ T1970] ? __create_object (mm/kmemleak.c:771) 
[ 492.237824][ T1970] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 492.238155][ T1970] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 492.238467][ T1970] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 492.238851][ T1970] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 492.239164][ T1970] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 492.239473][ T1970] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 492.239782][ T1970] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.240092][ T1970] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.240395][ T1970] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 492.240702][ T1970] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 492.241019][ T1970] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 492.241323][ T1970] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 492.241630][ T1970] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 492.241945][ T1970] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.242282][ T1970] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 492.242592][ T1970] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 492.242914][ T1970] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 492.243252][ T1970] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 492.243555][ T1970] ? 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) 
[ 492.243874][ T1970] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 492.244185][ T1970] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 492.244488][ T1970] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.244817][ T1970] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 492.245133][ T1970] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 492.245447][ T1970] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 492.245770][ T1970] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 492.246082][ T1970] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 492.246386][ T1970] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 492.246790][ T1970] ___sys_sendmsg (net/socket.c:2670) 
[ 492.247097][ T1970] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 492.247401][ T1970] ? __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) 
[ 492.247796][ T1970] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 492.248105][ T1970] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.248415][ T1970] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 492.248724][ T1970] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 492.249041][ T1970] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 492.249349][ T1970] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 492.249660][ T1970] __sys_sendmsg (net/socket.c:2700) 
[ 492.249975][ T1970] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 492.250353][ T1970] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 492.250669][ T1970] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 492.250986][ T1970] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 492.251293][ T1970] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  492.251670][ T1970] RIP: 0033:0x7ff5a52e71e7
[ 492.252003][ T1970] 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)
[  492.253111][ T1970] RSP: 002b:00007ffe31c72fb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  492.253574][ T1970] RAX: ffffffffffffffda RBX: 00007ffe31c736e0 RCX: 00007ff5a52e71e7
[  492.254038][ T1970] RDX: 0000000000000000 RSI: 00007ffe31c73020 RDI: 0000000000000005
[  492.254500][ T1970] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  492.254967][ T1970] R10: 0000000012ab3910 R11: 0000000000000246 R12: 0000000000000003


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