======================================
| [   18.372829][  T302] veth1: entered promiscuous mode
| [   18.386857][  T302] ------------[ cut here ]------------
| [ 18.387204][ T302] WARNING: CPU: 3 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) 
| [   18.387821][  T302] Modules linked in: bridge stp llc vrf veth
[   18.388877][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.389284][ 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) 
[ 18.389604][ 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
[   18.390710][  T302] RSP: 0018:ffffc90000766ef0 EFLAGS: 00010246
[   18.391123][  T302] RAX: 0000000000000000 RBX: ffff888005f62000 RCX: 0000000000000001
[   18.391605][  T302] RDX: 0000000000000000 RSI: ffffffffa969b939 RDI: ffffffffa8e555e0
[   18.392080][  T302] RBP: ffffc90000766fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.392555][  T302] R10: ffffc90000767010 R11: ffffffffaa4a8918 R12: 1ffff920000ecde2
[   18.393033][  T302] R13: 00000000000005dc R14: ffffc90000767010 R15: ffff888005f62f08
[   18.393498][  T302] FS:  00007f625c96c800(0000) GS:ffff88808ac37000(0000) knlGS:0000000000000000
[   18.394064][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.394458][  T302] CR2: 000055fa6e455990 CR3: 0000000009989005 CR4: 0000000000772ef0
[   18.394928][  T302] PKRU: 55555554
[   18.395170][  T302] Call Trace:
[   18.395406][  T302]  <TASK>
[ 18.395570][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.395890][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.396215][ T302] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.396529][ T302] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.396922][ T302] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.397243][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 18.397569][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.397893][ T302] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.398335][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.398572][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.399011][ T302] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.399386][ T302] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.399704][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.400029][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.400420][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.400742][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.401082][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.401397][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.401709][ 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) 
[ 18.402029][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.402411][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.402744][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.403060][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.403372][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.403696][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.404026][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.404331][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 18.404642][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.404975][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.405283][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.405677][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.406015][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.406336][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.406659][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.406986][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.407298][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.407614][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.407939][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.408270][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.408596][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.408925][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.409259][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.409582][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.409911][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.410258][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.410582][ 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) 
[ 18.410909][ T302] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.411233][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.411553][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.411884][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.412218][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.412539][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.412877][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.413218][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.413541][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.413962][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 18.414282][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.414593][ 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) 
[ 18.414986][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.415303][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.415613][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.415927][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.416244][ 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) 
[ 18.416569][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.416910][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 18.417232][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.417637][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.417978][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.418316][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.418639][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.419054][  T302] RIP: 0033:0x7f625cb391e7
[ 18.419388][ 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)
[   18.420550][  T302] RSP: 002b:00007ffd2b3c5ec8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.421044][  T302] RAX: ffffffffffffffda RBX: 00007ffd2b3c65f0 RCX: 00007f625cb391e7
[   18.421530][  T302] RDX: 0000000000000000 RSI: 00007ffd2b3c5f30 RDI: 0000000000000005
[   18.422037][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.422503][  T302] R10: 00000000140dc910 R11: 0000000000000246 R12: 0000000000000004
[   18.423002][  T302] R13: 00000000686e71e6 R14: 0000000000499600 R15: 0000000000000000
| [   18.554930][  T304] ------------[ cut here ]------------
| [ 18.555255][ T304] WARNING: CPU: 1 PID: 304 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) 
| [   18.555861][  T304] Modules linked in: bridge stp llc vrf veth
| [   18.556878][  T304] Tainted: [W]=WARN
[   18.557125][  T304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.557529][ T304] 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) 
[ 18.557848][ T304] 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
[   18.558961][  T304] RSP: 0018:ffffc90000656ef0 EFLAGS: 00010246
[   18.559349][  T304] RAX: 0000000000000000 RBX: ffff888005f62000 RCX: 0000000000000001
[   18.559807][  T304] RDX: 0000000000000000 RSI: ffffffffa969b939 RDI: ffffffffa8e555e0
[   18.560279][  T304] RBP: ffffc90000656fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.560738][  T304] R10: ffffc90000657010 R11: ffffffffaa4a8918 R12: 1ffff920000cade2
[   18.561223][  T304] R13: 00000000000005dc R14: ffffc90000657010 R15: ffff888005f62f08
[   18.561683][  T304] FS:  00007f4fc51a1800(0000) GS:ffff88808ab37000(0000) knlGS:0000000000000000
[   18.562226][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.562613][  T304] CR2: 00000000004e5ab0 CR3: 000000000e0cb002 CR4: 0000000000772ef0
[   18.563085][  T304] PKRU: 55555554
[   18.563314][  T304] Call Trace:
[   18.563544][  T304]  <TASK>
[ 18.563703][ T304] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.564024][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.564337][ T304] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.564643][ T304] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.565034][ T304] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.565343][ T304] netif_set_mtu (net/core/dev.c:9652) 
[ 18.565647][ T304] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.565978][ T304] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.566415][ T304] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.566648][ T304] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.567077][ T304] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.567437][ T304] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.567759][ T304] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.568080][ T304] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.568474][ T304] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.568778][ T304] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.569093][ T304] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.569403][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.569712][ T304] ? __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) 
[ 18.570027][ T304] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.570404][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.570716][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.571031][ T304] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.571336][ T304] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.571641][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.571959][ T304] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.572261][ T304] ? __create_object (mm/kmemleak.c:771) 
[ 18.572577][ T304] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.572882][ T304] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.573205][ T304] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.573583][ T304] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.573893][ T304] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.574214][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.574519][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.574829][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.575142][ T304] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.575447][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.575752][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.576065][ T304] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.576370][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.576675][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.576992][ T304] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.577306][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.577617][ T304] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.577935][ T304] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.578247][ T304] ? 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) 
[ 18.578554][ T304] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.578860][ T304] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.579173][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.579484][ T304] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.579788][ T304] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.580106][ T304] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.580417][ T304] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.580724][ T304] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.581034][ T304] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.581421][ T304] ___sys_sendmsg (net/socket.c:2670) 
[ 18.581724][ T304] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.582040][ T304] ? __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) 
[ 18.582422][ T304] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.582729][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.583044][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.583352][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.583654][ T304] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.583965][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.584274][ T304] __sys_sendmsg (net/socket.c:2700) 
[ 18.584579][ T304] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.584965][ T304] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.585282][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.585587][ T304] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.585892][ T304] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.586281][  T304] RIP: 0033:0x7f4fc536e1e7
[ 18.586594][ T304] 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)
[   18.587698][  T304] RSP: 002b:00007fff783d5c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.588166][  T304] RAX: ffffffffffffffda RBX: 00007fff783d6340 RCX: 00007f4fc536e1e7
[   18.588617][  T304] RDX: 0000000000000000 RSI: 00007fff783d5c80 RDI: 0000000000000005
[   18.589084][  T304] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.589556][  T304] R10: 000000000375b910 R11: 0000000000000246 R12: 0000000000000004


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