======================================
| [   18.788347][  T300] veth1: entered promiscuous mode
| [   18.791778][  T300] ------------[ cut here ]------------
| [ 18.792163][ T300] WARNING: CPU: 2 PID: 300 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) 
| [   18.792794][  T300] Modules linked in: bridge stp llc vrf veth
[   18.793871][  T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.794284][ T300] 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) 
[ 18.794632][ T300] 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
[   18.795755][  T300] RSP: 0018:ffffc90000686ef0 EFLAGS: 00010246
[   18.796175][  T300] RAX: 0000000000000000 RBX: ffff8880094da000 RCX: 0000000000000001
[   18.796655][  T300] RDX: 0000000000000000 RSI: ffffffffa509b939 RDI: ffffffffa48555e0
[   18.797151][  T300] RBP: ffffc90000686fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.797624][  T300] R10: ffffc90000687010 R11: ffffffffa5ea8918 R12: 1ffff920000d0de2
[   18.798112][  T300] R13: 00000000000005dc R14: ffffc90000687010 R15: ffff8880094daf08
[   18.798600][  T300] FS:  00007f258cf68800(0000) GS:ffff88808f1b7000(0000) knlGS:0000000000000000
[   18.799435][  T300] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.799844][  T300] CR2: 00000000004e5aa8 CR3: 0000000008e57004 CR4: 0000000000772ef0
[   18.800335][  T300] PKRU: 55555554
[   18.800589][  T300] Call Trace:
[   18.800844][  T300]  <TASK>
[ 18.801041][ T300] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.801390][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.801743][ T300] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.802127][ T300] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.802550][ T300] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.802899][ T300] netif_set_mtu (net/core/dev.c:9652) 
[ 18.803245][ T300] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.803597][ T300] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.804089][ T300] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.804363][ T300] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.804812][ T300] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.805232][ T300] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.805586][ T300] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.805941][ T300] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.806379][ T300] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.806720][ T300] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.807073][ T300] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.807419][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.807767][ T300] ? __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) 
[ 18.808122][ T300] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.808541][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.808894][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.809232][ T300] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.809569][ T300] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.809929][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.810270][ T300] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.810609][ T300] ? __create_object (mm/kmemleak.c:771) 
[ 18.810964][ T300] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.811323][ T300] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.811665][ T300] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.812103][ T300] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.812450][ T300] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.812799][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.813150][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.813493][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.813816][ T300] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.814204][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.814548][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.814899][ T300] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.815250][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.815598][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.815952][ T300] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.816302][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.816657][ T300] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.817023][ T300] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.817378][ T300] ? 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) 
[ 18.817724][ T300] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.818086][ T300] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.818428][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.818774][ T300] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.819142][ T300] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.819485][ T300] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.819836][ T300] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.820696][ T300] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.821047][ T300] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.821476][ T300] ___sys_sendmsg (net/socket.c:2670) 
[ 18.821807][ T300] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.822173][ T300] ? __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) 
[ 18.822588][ T300] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.822933][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.823308][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.823656][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.824006][ T300] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.824343][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.824709][ T300] __sys_sendmsg (net/socket.c:2700) 
[ 18.825284][ T300] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.825694][ T300] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.826050][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.826617][ T300] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.826964][ T300] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.827380][  T300] RIP: 0033:0x7f258d1351e7
[ 18.827736][ T300] 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)
[   18.829154][  T300] RSP: 002b:00007ffc27597708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.829658][  T300] RAX: ffffffffffffffda RBX: 00007ffc27597e30 RCX: 00007f258d1351e7
[   18.830179][  T300] RDX: 0000000000000000 RSI: 00007ffc27597770 RDI: 0000000000000005
[   18.830686][  T300] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.831196][  T300] R10: 000000001f26e910 R11: 0000000000000246 R12: 0000000000000004
[   18.831704][  T300] R13: 00000000686e6e1d R14: 0000000000499600 R15: 0000000000000000
| [   18.964637][  T302] ------------[ cut here ]------------
| [ 18.964960][ T302] WARNING: CPU: 1 PID: 302 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) 
| [   18.965564][  T302] Modules linked in: bridge stp llc vrf veth
| [   18.966900][  T302] Tainted: [W]=WARN
[   18.967137][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.967520][ T302] 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) 
[ 18.967839][ T302] 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
[   18.968958][  T302] RSP: 0018:ffffc900005c6ef0 EFLAGS: 00010246
[   18.969348][  T302] RAX: 0000000000000000 RBX: ffff8880094da000 RCX: 0000000000000001
[   18.969805][  T302] RDX: 0000000000000000 RSI: ffffffffa509b939 RDI: ffffffffa48555e0
[   18.970270][  T302] RBP: ffffc900005c6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.970729][  T302] R10: ffffc900005c7010 R11: ffffffffa5ea8918 R12: 1ffff920000b8de2
[   18.971201][  T302] R13: 00000000000005dc R14: ffffc900005c7010 R15: ffff8880094daf08
[   18.971662][  T302] FS:  00007ffb4d1a0800(0000) GS:ffff88808f137000(0000) knlGS:0000000000000000
[   18.972212][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.972599][  T302] CR2: 00000000004e5ab0 CR3: 000000000ab98005 CR4: 0000000000772ef0
[   18.973072][  T302] PKRU: 55555554
[   18.973301][  T302] Call Trace:
[   18.973529][  T302]  <TASK>
[ 18.973689][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.974027][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.974345][ T302] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.974652][ T302] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.975043][ T302] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.975359][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 18.975666][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.975993][ T302] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.976423][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.976656][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.977085][ T302] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.977438][ T302] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.977756][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.978074][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.978461][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.978770][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.979086][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.979397][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.979706][ T302] ? __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) 
[ 18.980027][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.980407][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.980717][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.981030][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.981333][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.981638][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.981962][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.982271][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 18.982579][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.982894][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.983198][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.983575][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.983897][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.984209][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.984514][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.984833][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.985152][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.985456][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.985769][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.986082][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.986392][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.986702][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.987027][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.987339][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.987643][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.987965][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.988269][ T302] ? 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) 
[ 18.988576][ T302] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.988892][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.989201][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.989513][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.989820][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.990137][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.990449][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.990758][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.991084][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.991478][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 18.991780][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.992114][ T302] ? __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) 
[ 18.992514][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.992838][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.993170][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.993496][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.993816][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.994150][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.994478][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 18.994796][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.995206][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.995546][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.995885][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.996213][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.996619][  T302] RIP: 0033:0x7ffb4d36d1e7
[ 18.996964][ T302] 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)
[   18.998126][  T302] RSP: 002b:00007ffc0eaa1768 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.998625][  T302] RAX: ffffffffffffffda RBX: 00007ffc0eaa1e90 RCX: 00007ffb4d36d1e7
[   18.999121][  T302] RDX: 0000000000000000 RSI: 00007ffc0eaa17d0 RDI: 0000000000000005
[   18.999601][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.000093][  T302] R10: 0000000037f7e910 R11: 0000000000000246 R12: 0000000000000004


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