======================================
| [  120.390804][  T976] veth0: entered promiscuous mode
| [  120.394091][  T976] ------------[ cut here ]------------
| [ 120.394420][ T976] WARNING: CPU: 0 PID: 976 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) 
| [  120.396003][  T976] Modules linked in: bridge stp llc nft_synproxy nf_synproxy_core nft_ct ts_kmp ts_bm xt_string dummy sctp ip6_udp_tunnel udp_tunnel xt_conntrack sch_netem cls_u32 sch_htb xt_REDIRECT nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat veth nf_tables
[  120.398412][  T976] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 120.398872][ T976] 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) 
[ 120.399253][ T976] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  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
[  120.400524][  T976] RSP: 0018:ffffc900005b6ef0 EFLAGS: 00010246
[  120.400988][  T976] RAX: 0000000000000000 RBX: ffff8880112ba000 RCX: 0000000000000001
[  120.401520][  T976] RDX: 0000000000000000 RSI: ffffffffb649f52e RDI: ffffffffb5c5a5a0
[  120.402097][  T976] RBP: ffffc900005b6fe0 R08: 0000000000000000 R09: 0000000000000000
[  120.402635][  T976] R10: ffffc900005b7010 R11: ffffffffb69798a0 R12: 1ffff920000b6de2
[  120.403173][  T976] R13: 00000000000005dc R14: ffffc900005b7010 R15: ffff8880112baf08
[  120.403703][  T976] FS:  00007f9af352d800(0000) GS:ffff88807dca7000(0000) knlGS:0000000000000000
[  120.404347][  T976] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.404808][  T976] CR2: 00000000004e5aa0 CR3: 000000000c1a4004 CR4: 0000000000772ef0
[  120.405627][  T976] PKRU: 55555554
[  120.405925][  T976] Call Trace:
[  120.406207][  T976]  <TASK>
[ 120.406394][ T976] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 120.406763][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.407140][ T976] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.407500][ T976] netif_set_mtu (net/core/dev.c:9652) 
[ 120.407869][ T976] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 120.408241][ T976] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 120.408509][ T976] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 120.409023][ T976] br_add_if (net/bridge/br_if.c:697) bridge 
[ 120.409428][ T976] do_set_master (net/core/rtnetlink.c:2948) 
[ 120.409797][ T976] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 120.410182][ T976] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 120.410635][ T976] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 120.411000][ T976] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 120.411352][ T976] ? __kernel_text_address (kernel/extable.c:79) 
[ 120.411711][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.412077][ T976] ? __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) 
[ 120.412439][ T976] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 120.412886][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.413244][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.413595][ T976] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 120.413965][ T976] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 120.414327][ T976] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.414687][ T976] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 120.415059][ T976] ? __create_object (mm/kmemleak.c:771) 
[ 120.415415][ T976] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 120.415775][ T976] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 120.416143][ T976] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 120.416585][ T976] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 120.416956][ T976] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 120.417318][ T976] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.417668][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.418063][ T976] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.418424][ T976] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 120.418775][ T976] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.419138][ T976] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.419490][ T976] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 120.419854][ T976] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.420215][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.420583][ T976] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 120.420948][ T976] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.421303][ T976] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 120.421669][ T976] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 120.422042][ T976] ? 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) 
[ 120.422405][ T976] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 120.422776][ T976] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 120.423118][ T976] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 120.423431][ T976] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 120.423742][ T976] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 120.424065][ T976] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 120.424380][ T976] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 120.424715][ T976] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 120.425036][ T976] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 120.425446][ T976] ___sys_sendmsg (net/socket.c:2670) 
[ 120.425753][ T976] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 120.426088][ T976] ? __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) 
[ 120.426483][ T976] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 120.426800][ T976] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.427125][ T976] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.427442][ T976] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.427753][ T976] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 120.428081][ T976] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.428400][ T976] __sys_sendmsg (net/socket.c:2700) 
[ 120.428708][ T976] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 120.429100][ T976] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 120.429424][ T976] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.429736][ T976] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 120.430069][ T976] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  120.430465][  T976] RIP: 0033:0x7f9af36fa1e7
[ 120.430794][ T976] 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)
[  120.431914][  T976] RSP: 002b:00007ffe16ff0678 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  120.432393][  T976] RAX: ffffffffffffffda RBX: 00007ffe16ff0db0 RCX: 00007f9af36fa1e7
[  120.432868][  T976] RDX: 0000000000000000 RSI: 00007ffe16ff06e0 RDI: 0000000000000005
[  120.433337][  T976] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  120.433805][  T976] R10: 000000000ae12910 R11: 0000000000000246 R12: 0000000000000003
[  120.434289][  T976] R13: 00000000686e47a5 R14: 0000000000499600 R15: 0000000000000000
| [  120.587103][  T977] ------------[ cut here ]------------
| [ 120.587430][ T977] WARNING: CPU: 1 PID: 977 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) 
| [  120.588061][  T977] Modules linked in: bridge stp llc nft_synproxy nf_synproxy_core nft_ct ts_kmp ts_bm xt_string dummy sctp ip6_udp_tunnel udp_tunnel xt_conntrack sch_netem cls_u32 sch_htb xt_REDIRECT nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat veth nf_tables
| [  120.590499][  T977] Tainted: [W]=WARN
[  120.590743][  T977] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 120.591304][ T977] 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) 
[ 120.591632][ T977] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  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
[  120.592927][  T977] RSP: 0018:ffffc900005b6ef0 EFLAGS: 00010246
[  120.593324][  T977] RAX: 0000000000000000 RBX: ffff8880112ba000 RCX: 0000000000000001
[  120.593785][  T977] RDX: 0000000000000000 RSI: ffffffffb649f52e RDI: ffffffffb5c5a5a0
[  120.594459][  T977] RBP: ffffc900005b6fe0 R08: 0000000000000000 R09: 0000000000000000
[  120.595121][  T977] R10: ffffc900005b7010 R11: ffffffffb72b19b8 R12: 1ffff920000b6de2
[  120.595592][  T977] R13: 00000000000005dc R14: ffffc900005b7010 R15: ffff8880112baf08
[  120.596201][  T977] FS:  00007fcddc81b800(0000) GS:ffff88807dd27000(0000) knlGS:0000000000000000
[  120.596744][  T977] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.597290][  T977] CR2: 00000000004e5aa8 CR3: 000000000c077002 CR4: 0000000000772ef0
[  120.597756][  T977] PKRU: 55555554
[  120.598083][  T977] Call Trace:
[  120.598317][  T977]  <TASK>
[ 120.598479][ T977] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 120.598792][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.599124][ T977] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 120.599438][ T977] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 120.599828][ T977] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 120.600154][ T977] netif_set_mtu (net/core/dev.c:9652) 
[ 120.600472][ T977] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 120.600795][ T977] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 120.601336][ T977] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 120.601577][ T977] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 120.602025][ T977] br_add_if (net/bridge/br_if.c:697) bridge 
[ 120.602392][ T977] do_set_master (net/core/rtnetlink.c:2948) 
[ 120.602708][ T977] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 120.603040][ T977] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 120.603437][ T977] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 120.603747][ T977] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 120.604066][ T977] ? __kernel_text_address (kernel/extable.c:79) 
[ 120.604383][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.604706][ T977] ? __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) 
[ 120.605037][ T977] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 120.605433][ T977] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.605769][ T977] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.606100][ T977] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 120.606417][ T977] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 120.606727][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.607049][ T977] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 120.607359][ T977] ? __create_object (mm/kmemleak.c:771) 
[ 120.607681][ T977] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 120.608008][ T977] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 120.608320][ T977] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 120.608704][ T977] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 120.609032][ T977] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 120.609351][ T977] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.609659][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.609995][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.610318][ T977] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 120.610623][ T977] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.610945][ T977] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 120.611270][ T977] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 120.611583][ T977] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.611904][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.612218][ T977] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 120.612537][ T977] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 120.612861][ T977] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 120.613181][ T977] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 120.613489][ T977] ? 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) 
[ 120.613802][ T977] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 120.614138][ T977] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 120.614459][ T977] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 120.614788][ T977] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 120.615109][ T977] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 120.615430][ T977] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 120.615751][ T977] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 120.616075][ T977] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 120.616389][ T977] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 120.616789][ T977] ___sys_sendmsg (net/socket.c:2670) 
[ 120.617110][ T977] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 120.617422][ T977] ? __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) 
[ 120.617808][ T977] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 120.618143][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.618458][ T977] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 120.618773][ T977] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 120.619095][ T977] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 120.619416][ T977] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 120.619731][ T977] __sys_sendmsg (net/socket.c:2700) 
[ 120.620051][ T977] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 120.620434][ T977] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 120.620758][ T977] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 120.621107][ T977] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 120.621424][ T977] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  120.621814][  T977] RIP: 0033:0x7fcddc9e81e7
[ 120.622164][ T977] 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)
[  120.623294][  T977] RSP: 002b:00007ffe9eb03d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  120.623759][  T977] RAX: ffffffffffffffda RBX: 00007ffe9eb04490 RCX: 00007fcddc9e81e7
[  120.624239][  T977] RDX: 0000000000000000 RSI: 00007ffe9eb03dc0 RDI: 0000000000000005
[  120.624715][  T977] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  120.625184][  T977] R10: 0000000014d13910 R11: 0000000000000246 R12: 0000000000000003


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