======================================
| [   20.779841][  T312] veth1: entered promiscuous mode
| [   20.782107][  T312] ------------[ cut here ]------------
| [ 20.782428][ T312] WARNING: CPU: 3 PID: 312 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) 
| [   20.783089][  T312] Modules linked in: bridge stp llc 8021q vrf veth
[   20.784155][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.784559][ T312] 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) 
[ 20.784881][ T312] 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
[   20.785986][  T312] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[   20.786391][  T312] RAX: 0000000000000000 RBX: ffff88800c62a000 RCX: 0000000000000001
[   20.786867][  T312] RDX: 0000000000000000 RSI: ffffffffb7a9b939 RDI: ffffffffb72555e0
[   20.787328][  T312] RBP: ffffc90000566fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.787996][  T312] R10: ffffc90000567010 R11: ffffffffb88a8918 R12: 1ffff920000acde2
[   20.788480][  T312] R13: 00000000000005dc R14: ffffc90000567010 R15: ffff88800c62af08
[   20.788953][  T312] FS:  00007f29d3fc4800(0000) GS:ffff88807c837000(0000) knlGS:0000000000000000
[   20.789511][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.789907][  T312] CR2: 00000000004e5aa8 CR3: 000000000bd02001 CR4: 0000000000772ef0
[   20.790371][  T312] PKRU: 55555554
[   20.790793][  T312] Call Trace:
[   20.791036][  T312]  <TASK>
[ 20.791197][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.791706][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.792026][ T312] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.792334][ T312] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.792919][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.793234][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 20.793632][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.793956][ T312] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.794410][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.794670][ T312] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.795117][ T312] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.795493][ T312] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 20.795818][ T312] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.796142][ T312] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.796572][ T312] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.796903][ T312] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.797226][ T312] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.797585][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.797922][ T312] ? __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) 
[ 20.798248][ T312] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.798659][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.798988][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.799312][ T312] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.799642][ T312] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.799970][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.800295][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.800624][ T312] ? __create_object (mm/kmemleak.c:771) 
[ 20.800956][ T312] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.801274][ T312] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.801623][ T312] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.802025][ T312] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.802361][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.802701][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.803025][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.803353][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.803690][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.804011][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.804339][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.804675][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.805016][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.805355][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.805713][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.806043][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.806379][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.806727][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.807050][ T312] ? 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) 
[ 20.807378][ T312] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.807715][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.808040][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.808367][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.808705][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.809031][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.809372][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.809731][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.810056][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.810488][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 20.810814][ T312] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.811142][ T312] ? __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) 
[ 20.811562][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.811898][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.812225][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.812575][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.812900][ T312] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.813227][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.813585][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 20.813899][ T312] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.814281][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.814622][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.814947][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.815273][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.815673][  T312] RIP: 0033:0x7f29d41911e7
[ 20.815999][ T312] 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)
[   20.817158][  T312] RSP: 002b:00007ffd235bbb38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.817680][  T312] RAX: ffffffffffffffda RBX: 00007ffd235bc260 RCX: 00007f29d41911e7
[   20.818159][  T312] RDX: 0000000000000000 RSI: 00007ffd235bbba0 RDI: 0000000000000005
[   20.818635][  T312] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.819110][  T312] R10: 000000001f9a9910 R11: 0000000000000246 R12: 0000000000000004
[   20.819585][  T312] R13: 00000000686e68f3 R14: 0000000000499600 R15: 0000000000000000
| [   20.934708][  T314] ------------[ cut here ]------------
| [ 20.935022][ T314] WARNING: CPU: 3 PID: 314 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) 
| [   20.936501][  T314] Modules linked in: bridge stp llc 8021q vrf veth
| [   20.937553][  T314] Tainted: [W]=WARN
[   20.937797][  T314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.938181][ T314] 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) 
[ 20.938509][ T314] 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
[   20.939629][  T314] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[   20.940016][  T314] RAX: 0000000000000000 RBX: ffff88800c62a000 RCX: 0000000000000001
[   20.940489][  T314] RDX: 0000000000000000 RSI: ffffffffb7a9b939 RDI: ffffffffb72555e0
[   20.940953][  T314] RBP: ffffc90000566fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.941415][  T314] R10: ffffc90000567010 R11: ffffffffb88a8918 R12: 1ffff920000acde2
[   20.941885][  T314] R13: 00000000000005dc R14: ffffc90000567010 R15: ffff88800c62af08
[   20.942360][  T314] FS:  00007f32d8c44800(0000) GS:ffff88807c837000(0000) knlGS:0000000000000000
[   20.942902][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.943541][  T314] CR2: 00000000004e5ab0 CR3: 000000000e570003 CR4: 0000000000772ef0
[   20.944005][  T314] PKRU: 55555554
[   20.944233][  T314] Call Trace:
[   20.944479][  T314]  <TASK>
[ 20.944641][ T314] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.944955][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.945271][ T314] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.945588][ T314] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.945971][ T314] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.946281][ T314] netif_set_mtu (net/core/dev.c:9652) 
[ 20.946608][ T314] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.946928][ T314] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.947366][ T314] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.947631][ T314] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.948054][ T314] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.948406][ T314] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 20.948748][ T314] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.949061][ T314] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.949467][ T314] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.949776][ T314] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.950088][ T314] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.950405][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.950730][ T314] ? __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) 
[ 20.951044][ T314] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.951427][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.951754][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.952064][ T314] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.952373][ T314] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.952701][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.953014][ T314] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.953317][ T314] ? __create_object (mm/kmemleak.c:771) 
[ 20.953633][ T314] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.953943][ T314] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.954258][ T314] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.954648][ T314] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.954964][ T314] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.955280][ T314] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.955600][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.955918][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.956232][ T314] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.956575][ T314] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.956891][ T314] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.957198][ T314] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.957518][ T314] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.957839][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.958153][ T314] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.958468][ T314] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.958779][ T314] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.959107][ T314] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.959420][ T314] ? 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) 
[ 20.959759][ T314] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.960073][ T314] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.960383][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.960717][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.961042][ T314] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.961355][ T314] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.961682][ T314] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.961993][ T314] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.962296][ T314] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.962696][ T314] ___sys_sendmsg (net/socket.c:2670) 
[ 20.963002][ T314] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.963307][ T314] ? __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) 
[ 20.963704][ T314] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.964013][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.964325][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.964651][ T314] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.964955][ T314] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.965262][ T314] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.965588][ T314] __sys_sendmsg (net/socket.c:2700) 
[ 20.965897][ T314] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.966274][ T314] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.966615][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.966926][ T314] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.967237][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.967624][  T314] RIP: 0033:0x7f32d8e111e7
[ 20.967943][ T314] 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)
[   20.969055][  T314] RSP: 002b:00007ffe966d9648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.969540][  T314] RAX: ffffffffffffffda RBX: 00007ffe966d9d70 RCX: 00007f32d8e111e7
[   20.970003][  T314] RDX: 0000000000000000 RSI: 00007ffe966d96b0 RDI: 0000000000000005
[   20.970473][  T314] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.970931][  T314] R10: 000000000e518910 R11: 0000000000000246 R12: 0000000000000004


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