======================================
| [   19.210176][  T302] veth1: entered promiscuous mode
| [   19.212414][  T302] ------------[ cut here ]------------
| [ 19.212783][ T302] WARNING: CPU: 2 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) 
| [   19.213584][  T302] Modules linked in: bridge stp llc vrf veth
[   19.214729][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.215147][ 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) 
[ 19.215492][ T302] 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
[   19.216640][  T302] RSP: 0018:ffffc90000676ef0 EFLAGS: 00010246
[   19.217102][  T302] RAX: 0000000000000000 RBX: ffff88800b25a000 RCX: 0000000000000001
[   19.217588][  T302] RDX: 0000000000000000 RSI: ffffffffb989b941 RDI: ffffffffb90555e0
[   19.218091][  T302] RBP: ffffc90000676fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.218571][  T302] R10: ffffc90000677010 R11: ffffffffba6a8918 R12: 1ffff920000cede2
[   19.219075][  T302] R13: 00000000000005dc R14: ffffc90000677010 R15: ffff88800b25af08
[   19.219566][  T302] FS:  00007febaa647800(0000) GS:ffff88807a9b7000(0000) knlGS:0000000000000000
[   19.220160][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.220597][  T302] CR2: 00000000004e5aa8 CR3: 00000000051fc003 CR4: 0000000000772ef0
[   19.221096][  T302] PKRU: 55555554
[   19.221349][  T302] Call Trace:
[   19.221610][  T302]  <TASK>
[ 19.221798][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.222147][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.222522][ T302] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.222885][ T302] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.223456][ T302] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.223930][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 19.224423][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.224863][ T302] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.225363][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.225644][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.226110][ T302] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.226479][ T302] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.226823][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.227184][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.227585][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.227916][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.228253][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.228576][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.228915][ 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) 
[ 19.229251][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.229645][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.229977][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.230305][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.230631][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.230962][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.231294][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.231610][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 19.231957][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.232287][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.232607][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.233023][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.233371][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.233710][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.234028][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.234370][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.234712][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.235033][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.235362][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.235698][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.236021][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.236351][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.236693][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.237029][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.237357][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.237701][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.238034][ 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) 
[ 19.238373][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.238709][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.239027][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.239360][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.239695][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.240020][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.240414][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.240785][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.241211][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.241813][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 19.242291][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.242773][ 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) 
[ 19.243202][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.243583][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.243927][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.244268][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.244585][ 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) 
[ 19.244929][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.245263][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 19.245681][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.246103][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.246438][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.246773][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.247120][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.247516][  T302] RIP: 0033:0x7febaa8141e7
[ 19.247869][ 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)
[   19.249515][  T302] RSP: 002b:00007ffdf327c1b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.250246][  T302] RAX: ffffffffffffffda RBX: 00007ffdf327c8e0 RCX: 00007febaa8141e7
[   19.250733][  T302] RDX: 0000000000000000 RSI: 00007ffdf327c220 RDI: 0000000000000005
[   19.251448][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.251930][  T302] R10: 00000000126dc910 R11: 0000000000000246 R12: 0000000000000004
[   19.252420][  T302] R13: 00000000686e0edf R14: 0000000000499600 R15: 0000000000000000
| [   19.434093][  T304] ------------[ cut here ]------------
| [ 19.434437][ T304] WARNING: CPU: 0 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) 
| [   19.435154][  T304] Modules linked in: bridge stp llc vrf veth
| [   19.436634][  T304] Tainted: [W]=WARN
[   19.437019][  T304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.437598][ 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) 
[ 19.438170][ T304] 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
[   19.439991][  T304] RSP: 0018:ffffc900005b6ef0 EFLAGS: 00010246
[   19.440561][  T304] RAX: 0000000000000000 RBX: ffff88800b25a000 RCX: 0000000000000001
[   19.441153][  T304] RDX: 0000000000000000 RSI: ffffffffb989b941 RDI: ffffffffb90555e0
[   19.441870][  T304] RBP: ffffc900005b6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.442701][  T304] R10: ffffc900005b7010 R11: ffffffffba6a8918 R12: 1ffff920000b6de2
[   19.443382][  T304] R13: 00000000000005dc R14: ffffc900005b7010 R15: ffff88800b25af08
[   19.444202][  T304] FS:  00007fd5080c9800(0000) GS:ffff88807a8b7000(0000) knlGS:0000000000000000
[   19.445178][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.445879][  T304] CR2: 00000000004e5ab0 CR3: 0000000009b79002 CR4: 0000000000772ef0
[   19.446711][  T304] PKRU: 55555554
[   19.447113][  T304] Call Trace:
[   19.447523][  T304]  <TASK>
[ 19.447833][ T304] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.448383][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.448965][ T304] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.449503][ T304] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.450196][ T304] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.450770][ T304] netif_set_mtu (net/core/dev.c:9652) 
[ 19.451317][ T304] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.451879][ T304] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.452480][ T304] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.452912][ T304] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.453675][ T304] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.454302][ T304] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.454746][ T304] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.455299][ T304] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.456028][ T304] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.456574][ T304] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.457149][ T304] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.457718][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.458269][ 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) 
[ 19.458837][ T304] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.459517][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.460089][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.460629][ T304] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.461053][ T304] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.461590][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.462139][ T304] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.462614][ T304] ? __create_object (mm/kmemleak.c:771) 
[ 19.463118][ T304] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.463692][ T304] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.464243][ T304] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.464943][ T304] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.465499][ T304] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.466056][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.466580][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.467012][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.467559][ T304] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.468332][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.468905][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.469368][ T304] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.469861][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.470306][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.470879][ T304] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.471343][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.471840][ T304] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.472387][ T304] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.472940][ 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) 
[ 19.473480][ T304] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.474034][ T304] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.474559][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.475106][ T304] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.475636][ T304] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.476178][ T304] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.476752][ T304] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.477289][ T304] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.477816][ T304] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.478479][ T304] ___sys_sendmsg (net/socket.c:2670) 
[ 19.479017][ T304] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.479556][ 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) 
[ 19.480259][ T304] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.480804][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.481323][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.481865][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.482410][ 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) 
[ 19.482945][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.483487][ T304] __sys_sendmsg (net/socket.c:2700) 
[ 19.484026][ T304] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.484683][ T304] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.485211][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.485734][ T304] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.486245][ T304] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.486900][  T304] RIP: 0033:0x7fd5082961e7
[ 19.487453][ 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)
[   19.489387][  T304] RSP: 002b:00007ffd7b0b7888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.490173][  T304] RAX: ffffffffffffffda RBX: 00007ffd7b0b7fb0 RCX: 00007fd5082961e7
[   19.490867][  T304] RDX: 0000000000000000 RSI: 00007ffd7b0b78f0 RDI: 0000000000000005
[   19.491622][  T304] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.492350][  T304] R10: 0000000024d24910 R11: 0000000000000246 R12: 0000000000000004


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