======================================
| # [  156.991553] c1: entered promiscuous mode
| # [  156.995487] ------------[ cut here ]------------
| # [  156.995833] WARNING: CPU: 0 PID: 1381 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) 
| # [  156.996475] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
# [  156.998701] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# [  156.999122] 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) 
# [ 156.999452] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
# [  157.000593] RSP: 0018:ffffc90000596ef0 EFLAGS: 00010246
# [  157.001006] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
# [  157.001483] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
# [  157.001961] RBP: ffffc90000596fe0 R08: 0000000000000000 R09: 0000000000000000
# [  157.002433] R10: ffffc90000597010 R11: ffffffff9d5798a0 R12: 1ffff920000b2de2
# [  157.002923] R13: 00000000000005dc R14: ffffc90000597010 R15: ffff88800934af08
# [  157.003394] FS:  00007f721ebed800(0000) GS:ffff8880970a7000(0000) knlGS:0000000000000000
# [  157.004226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
# [  157.004620] CR2: 00000000004e6888 CR3: 000000000aad9002 CR4: 0000000000772ef0
# [  157.005106] PKRU: 55555554
# [  157.005342] Call Trace:
# [  157.005578]  <TASK>
# [  157.005743] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
# [  157.006078] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.006399] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.006714] netif_set_mtu (net/core/dev.c:9652) 
# [  157.007040] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
# [  157.007367] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
# [  157.007624] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
# [  157.008064] br_add_if (net/bridge/br_if.c:697) bridge 
# [  157.008413] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
# [  157.008729] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
# [  157.009056] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
# [  157.009448] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
# [  157.009766] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
# [  157.010086] ? __kernel_text_address (kernel/extable.c:79) 
# [  157.010410] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.010720] ? __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) 
# [  157.011045] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
# [  157.011432] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  157.011742] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  157.012073] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
# [  157.012391] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
# [  157.012704] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.013045] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
# [  157.013356] ? __create_object (mm/kmemleak.c:771) 
# [  157.013668] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
# [  157.014003] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
# [  157.014317] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# [  157.014716] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
# [  157.015048] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
# [  157.015366] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  157.015676] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.016004] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.016329] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
# [  157.016637] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  157.016960] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  157.017281] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
# [  157.017607] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  157.017932] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.018248] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
# [  157.018559] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  157.018879] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
# [  157.019204] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
# [  157.019520] ? 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) 
# [  157.019836] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
# [  157.020158] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
# [  157.020465] ? __create_object (mm/kmemleak.c:771) 
# [  157.020780] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  157.021106] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
# [  157.021431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
# [  157.021746] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
# [  157.022084] ? __kasan_kmalloc (mm/kasan/common.c:398) 
# [  157.022405] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
# [  157.022726] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
# [  157.023054] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
# [  157.023456] ___sys_sendmsg (net/socket.c:2670) 
# [  157.023774] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
# [  157.024092] ? __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) 
# [  157.024493] ? __pfx____sys_sendmsg (net/socket.c:2657) 
# [  157.024809] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.025142] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.025462] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.025790] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
# [  157.026122] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  157.026455] __sys_sendmsg (net/socket.c:2700) 
# [  157.026779] ? __pfx___sys_sendmsg (net/socket.c:2685) 
# [  157.027098] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
# [  157.027417] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
# [  157.027827] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# [  157.028162] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# [  157.028549] RIP: 0033:0x7f721edba1e7
# [ 157.028881] 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)
# [  157.030016] RSP: 002b:00007ffc65a32778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
# [  157.030488] RAX: ffffffffffffffda RBX: 00007ffc65a32ea0 RCX: 00007f721edba1e7
# [  157.030965] RDX: 0000000000000000 RSI: 00007ffc65a327e0 RDI: 0000000000000005
# [  157.031445] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
# [  157.031921] R10: 0000000013308910 R11: 0000000000000246 R12: 0000000000000003
# [  157.032387] R13: 00000000686e6bc5 R14: 0000000000499600 R15: 0000000000000000
| # [  157.789742] ------------[ cut here ]------------
| # [  157.790112] WARNING: CPU: 3 PID: 1386 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) 
| # [  157.790741] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| # [  157.793156] Tainted: [W]=WARN
# [  157.793400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# [  157.793796] 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) 
# [ 157.794134] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
# [  157.795334] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
# [  157.795746] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
# [  157.796234] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
# [  157.796726] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
# [  157.797223] R10: ffffc900005d7010 R11: ffffffff9d5798a0 R12: 1ffff920000bade2
# [  157.797701] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff88800934af08
# [  157.798187] FS:  00007f9df9de9800(0000) GS:ffff888097227000(0000) knlGS:0000000000000000
# [  157.798748] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
# [  157.799195] CR2: 00000000004e6888 CR3: 0000000004f5c003 CR4: 0000000000772ef0
# [  157.799690] PKRU: 55555554
# [  157.799947] Call Trace:
# [  157.800199]  <TASK>
# [  157.800364] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
# [  157.800686] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.801023] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.801346] netif_set_mtu (net/core/dev.c:9652) 
# [  157.801671] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
# [  157.802030] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
# [  157.802272] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
# [  157.802707] br_add_if (net/bridge/br_if.c:697) bridge 
# [  157.803115] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
# [  157.803439] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
# [  157.803756] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
# [  157.804177] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
# [  157.804500] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
# [  157.804811] ? __kernel_text_address (kernel/extable.c:79) 
# [  157.805156] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.805479] ? __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) 
# [  157.805796] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
# [  157.806203] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  157.806529] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  157.806847] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
# [  157.807243] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
# [  157.807586] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.807937] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
# [  157.808252] ? __create_object (mm/kmemleak.c:771) 
# [  157.808578] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
# [  157.808905] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
# [  157.809246] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# [  157.809638] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
# [  157.809974] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
# [  157.810299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  157.810612] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.810948] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.811298] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
# [  157.811612] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  157.811952] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  157.812267] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
# [  157.812582] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  157.812911] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.813244] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
# [  157.813563] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  157.813902] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
# [  157.814249] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
# [  157.814562] ? 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) 
# [  157.814901] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
# [  157.815266] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
# [  157.815583] ? __create_object (mm/kmemleak.c:771) 
# [  157.815932] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  157.816265] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
# [  157.816601] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
# [  157.816932] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
# [  157.817250] ? __kasan_kmalloc (mm/kasan/common.c:398) 
# [  157.817583] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
# [  157.817920] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
# [  157.818268] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
# [  157.818682] ___sys_sendmsg (net/socket.c:2670) 
# [  157.819056] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
# [  157.819445] ? __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) 
# [  157.819880] ? __pfx____sys_sendmsg (net/socket.c:2657) 
# [  157.820223] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.820551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  157.820899] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  157.821235] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
# [  157.821565] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  157.821928] __sys_sendmsg (net/socket.c:2700) 
# [  157.822266] ? __pfx___sys_sendmsg (net/socket.c:2685) 
# [  157.822598] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
# [  157.822951] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
# [  157.823402] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# [  157.823732] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# [  157.824189] RIP: 0033:0x7f9df9fb61e7
# [ 157.824541] 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)
# [  157.825718] RSP: 002b:00007ffc3589e138 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
# [  157.826214] RAX: ffffffffffffffda RBX: 00007ffc3589e860 RCX: 00007f9df9fb61e7
# [  157.826711] RDX: 0000000000000000 RSI: 00007ffc3589e1a0 RDI: 0000000000000005
# [  157.827251] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
# [  157.827764] R10: 000000001fea7910 R11: 0000000000000246 R12: 0000000000000003
# [  157.828276] R13: 00000000686e6bc6 R14: 0000000000499600 R15: 0000000000000000
| # [  158.579208] ------------[ cut here ]------------
| # [  158.579587] WARNING: CPU: 1 PID: 1391 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) 
| # [  158.580278] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| # [  158.581906] Tainted: [W]=WARN
# [  158.582167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# [  158.582576] 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) 
# [ 158.582925] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
# [  158.584106] RSP: 0018:ffffc900006a6ef0 EFLAGS: 00010246
# [  158.584534] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
# [  158.585194] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
# [  158.585693] RBP: ffffc900006a6fe0 R08: 0000000000000000 R09: 0000000000000000
# [  158.586225] R10: ffffc900006a7010 R11: ffffffff9d5798a0 R12: 1ffff920000d4de2
# [  158.586726] R13: 00000000000005dc R14: ffffc900006a7010 R15: ffff88800934af08
# [  158.587227] FS:  00007ff7728c5800(0000) GS:ffff888097127000(0000) knlGS:0000000000000000
# [  158.587824] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
# [  158.588248] CR2: 00000000004e6888 CR3: 00000000126b8004 CR4: 0000000000772ef0
# [  158.588745] PKRU: 55555554
# [  158.589021] Call Trace:
# [  158.589275]  <TASK>
# [  158.589447] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
# [  158.589780] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  158.590129] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  158.590465] netif_set_mtu (net/core/dev.c:9652) 
# [  158.590796] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
# [  158.591155] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
# [  158.591414] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
# [  158.591879] br_add_if (net/bridge/br_if.c:697) bridge 
# [  158.592253] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
# [  158.592587] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
# [  158.592944] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
# [  158.593362] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
# [  158.593690] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
# [  158.594039] ? __kernel_text_address (kernel/extable.c:79) 
# [  158.594380] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  158.594716] ? __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) 
# [  158.595059] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
# [  158.595470] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  158.595799] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  158.596137] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
# [  158.596472] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
# [  158.596803] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  158.597143] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
# [  158.597474] ? __create_object (mm/kmemleak.c:771) 
# [  158.597820] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
# [  158.598163] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
# [  158.598493] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# [  158.598909] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
# [  158.599254] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
# [  158.599582] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  158.599904] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  158.600247] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  158.600567] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
# [  158.600907] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  158.601233] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  158.601551] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
# [  158.601896] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  158.602218] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  158.602533] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
# [  158.602852] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  158.603187] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
# [  158.603515] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
# [  158.603825] ? 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) 
# [  158.604170] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
# [  158.604500] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
# [  158.604826] ? __create_object (mm/kmemleak.c:771) 
# [  158.605163] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  158.605500] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
# [  158.605828] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
# [  158.606164] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
# [  158.606492] ? __kasan_kmalloc (mm/kasan/common.c:398) 
# [  158.606809] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
# [  158.607141] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
# [  158.607465] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
# [  158.607903] ___sys_sendmsg (net/socket.c:2670) 
# [  158.608218] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
# [  158.608529] ? __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) 
# [  158.608937] ? __pfx____sys_sendmsg (net/socket.c:2657) 
# [  158.609268] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  158.609600] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  158.609950] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  158.610279] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
# [  158.610596] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  158.610928] __sys_sendmsg (net/socket.c:2700) 
# [  158.611256] ? __pfx___sys_sendmsg (net/socket.c:2685) 
# [  158.611575] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
# [  158.611916] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
# [  158.612318] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# [  158.612637] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# [  158.613053] RIP: 0033:0x7ff772a921e7
# [ 158.613386] 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)
# [  158.614558] RSP: 002b:00007ffe3a6f0258 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
# [  158.615055] RAX: ffffffffffffffda RBX: 00007ffe3a6f0980 RCX: 00007ff772a921e7
# [  158.615531] RDX: 0000000000000000 RSI: 00007ffe3a6f02c0 RDI: 0000000000000005
# [  158.616031] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
# [  158.616516] R10: 0000000009b68910 R11: 0000000000000246 R12: 0000000000000003
# [  158.617016] R13: 00000000686e6bc7 R14: 0000000000499600 R15: 0000000000000000
| # [  159.363510] ------------[ cut here ]------------
| # [  159.363839] WARNING: CPU: 0 PID: 1396 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) 
| # [  159.364469] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| # [  159.366131] Tainted: [W]=WARN
# [  159.366378] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
# [  159.366984] 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) 
# [ 159.367312] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
# [  159.368459] RSP: 0018:ffffc9000072eef0 EFLAGS: 00010246
# [  159.368853] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
# [  159.369359] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
# [  159.369838] RBP: ffffc9000072efe0 R08: 0000000000000000 R09: 0000000000000000
# [  159.370478] R10: ffffc9000072f010 R11: ffffffff9d5798a0 R12: 1ffff920000e5de2
# [  159.371100] R13: 00000000000005dc R14: ffffc9000072f010 R15: ffff88800934af08
# [  159.371580] FS:  00007fb69055c800(0000) GS:ffff8880970a7000(0000) knlGS:0000000000000000
# [  159.372135] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
# [  159.372543] CR2: 00000000004e5770 CR3: 0000000005214002 CR4: 0000000000772ef0
# [  159.373024] PKRU: 55555554
# [  159.373258] Call Trace:
# [  159.373503]  <TASK>
# [  159.373664] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
# [  159.374001] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  159.374329] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  159.374655] netif_set_mtu (net/core/dev.c:9652) 
# [  159.374994] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
# [  159.375338] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
# [  159.375598] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
# [  159.376056] br_add_if (net/bridge/br_if.c:697) bridge 
# [  159.376410] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
# [  159.376729] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
# [  159.377073] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
# [  159.377473] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
# [  159.377816] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
# [  159.378143] ? __kernel_text_address (kernel/extable.c:79) 
# [  159.378462] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  159.378784] ? __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) 
# [  159.379123] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
# [  159.379520] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  159.379837] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
# [  159.380184] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
# [  159.380509] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
# [  159.380821] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  159.381153] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
# [  159.381469] ? __create_object (mm/kmemleak.c:771) 
# [  159.381794] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
# [  159.382143] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
# [  159.382456] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
# [  159.382848] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
# [  159.383208] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
# [  159.383560] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  159.383895] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  159.384232] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  159.384546] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
# [  159.384852] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  159.385173] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
# [  159.385491] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
# [  159.385801] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  159.386135] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  159.386456] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
# [  159.386764] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
# [  159.387113] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
# [  159.387434] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
# [  159.387752] ? 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) 
# [  159.388089] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
# [  159.388420] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
# [  159.388727] ? __create_object (mm/kmemleak.c:771) 
# [  159.389072] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  159.389385] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
# [  159.389705] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
# [  159.390028] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
# [  159.390350] ? __kasan_kmalloc (mm/kasan/common.c:398) 
# [  159.390672] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
# [  159.391002] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
# [  159.391313] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
# [  159.391731] ___sys_sendmsg (net/socket.c:2670) 
# [  159.392076] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
# [  159.392393] ? __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) 
# [  159.392791] ? __pfx____sys_sendmsg (net/socket.c:2657) 
# [  159.393121] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  159.393435] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
# [  159.393761] ? find_held_lock (kernel/locking/lockdep.c:5353) 
# [  159.394090] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
# [  159.394414] ? __lock_release (kernel/locking/lockdep.c:5539) 
# [  159.394733] __sys_sendmsg (net/socket.c:2700) 
# [  159.395049] ? __pfx___sys_sendmsg (net/socket.c:2685) 
# [  159.395368] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
# [  159.395681] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
# [  159.396102] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
# [  159.396429] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
# [  159.396826] RIP: 0033:0x7fb6907291e7
# [ 159.397161] 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)
# [  159.398328] RSP: 002b:00007ffc595f7d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
# [  159.398811] RAX: ffffffffffffffda RBX: 00007ffc595f8480 RCX: 00007fb6907291e7
# [  159.399301] RDX: 0000000000000000 RSI: 00007ffc595f7dc0 RDI: 0000000000000005
# [  159.399778] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
# [  159.400269] R10: 000000002dd01910 R11: 0000000000000246 R12: 0000000000000003
# [  159.400737] R13: 00000000686e6bc7 R14: 0000000000499600 R15: 0000000000000000
| [  156.991553][ T1381] c1: entered promiscuous mode
| [  156.995487][ T1381] ------------[ cut here ]------------
| [ 156.995833][ T1381] WARNING: CPU: 0 PID: 1381 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) 
| [  156.996475][ T1381] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
[  156.998701][ T1381] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 156.999122][ T1381] 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) 
[ 156.999452][ T1381] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  157.000593][ T1381] RSP: 0018:ffffc90000596ef0 EFLAGS: 00010246
[  157.001006][ T1381] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  157.001483][ T1381] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  157.001961][ T1381] RBP: ffffc90000596fe0 R08: 0000000000000000 R09: 0000000000000000
[  157.002433][ T1381] R10: ffffc90000597010 R11: ffffffff9d5798a0 R12: 1ffff920000b2de2
[  157.002923][ T1381] R13: 00000000000005dc R14: ffffc90000597010 R15: ffff88800934af08
[  157.003394][ T1381] FS:  00007f721ebed800(0000) GS:ffff8880970a7000(0000) knlGS:0000000000000000
[  157.004226][ T1381] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  157.004620][ T1381] CR2: 00000000004e6888 CR3: 000000000aad9002 CR4: 0000000000772ef0
[  157.005106][ T1381] PKRU: 55555554
[  157.005342][ T1381] Call Trace:
[  157.005578][ T1381]  <TASK>
[ 157.005743][ T1381] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 157.006078][ T1381] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.006399][ T1381] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.006714][ T1381] netif_set_mtu (net/core/dev.c:9652) 
[ 157.007040][ T1381] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 157.007367][ T1381] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 157.007624][ T1381] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 157.008064][ T1381] br_add_if (net/bridge/br_if.c:697) bridge 
[ 157.008413][ T1381] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 157.008729][ T1381] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 157.009056][ T1381] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 157.009448][ T1381] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 157.009766][ T1381] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 157.010086][ T1381] ? __kernel_text_address (kernel/extable.c:79) 
[ 157.010410][ T1381] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.010720][ T1381] ? __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) 
[ 157.011045][ T1381] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 157.011432][ T1381] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.011742][ T1381] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.012073][ T1381] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 157.012391][ T1381] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 157.012704][ T1381] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.013045][ T1381] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 157.013356][ T1381] ? __create_object (mm/kmemleak.c:771) 
[ 157.013668][ T1381] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 157.014003][ T1381] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 157.014317][ T1381] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 157.014716][ T1381] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 157.015048][ T1381] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 157.015366][ T1381] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.015676][ T1381] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.016004][ T1381] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.016329][ T1381] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 157.016637][ T1381] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.016960][ T1381] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.017281][ T1381] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 157.017607][ T1381] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.017932][ T1381] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.018248][ T1381] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 157.018559][ T1381] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.018879][ T1381] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 157.019204][ T1381] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 157.019520][ T1381] ? 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) 
[ 157.019836][ T1381] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 157.020158][ T1381] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 157.020465][ T1381] ? __create_object (mm/kmemleak.c:771) 
[ 157.020780][ T1381] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.021106][ T1381] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 157.021431][ T1381] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 157.021746][ T1381] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 157.022084][ T1381] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 157.022405][ T1381] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 157.022726][ T1381] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 157.023054][ T1381] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 157.023456][ T1381] ___sys_sendmsg (net/socket.c:2670) 
[ 157.023774][ T1381] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 157.024092][ T1381] ? __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) 
[ 157.024493][ T1381] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 157.024809][ T1381] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.025142][ T1381] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.025462][ T1381] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.025790][ T1381] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 157.026122][ T1381] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.026455][ T1381] __sys_sendmsg (net/socket.c:2700) 
[ 157.026779][ T1381] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 157.027098][ T1381] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
[ 157.027417][ T1381] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
[ 157.027827][ T1381] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 157.028162][ T1381] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  157.028549][ T1381] RIP: 0033:0x7f721edba1e7
[ 157.028881][ T1381] 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)
[  157.030016][ T1381] RSP: 002b:00007ffc65a32778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  157.030488][ T1381] RAX: ffffffffffffffda RBX: 00007ffc65a32ea0 RCX: 00007f721edba1e7
[  157.030965][ T1381] RDX: 0000000000000000 RSI: 00007ffc65a327e0 RDI: 0000000000000005
[  157.031445][ T1381] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  157.031921][ T1381] R10: 0000000013308910 R11: 0000000000000246 R12: 0000000000000003
[  157.032387][ T1381] R13: 00000000686e6bc5 R14: 0000000000499600 R15: 0000000000000000
| [  157.789742][ T1386] ------------[ cut here ]------------
| [ 157.790112][ T1386] WARNING: CPU: 3 PID: 1386 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) 
| [  157.790741][ T1386] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [  157.793156][ T1386] Tainted: [W]=WARN
[  157.793400][ T1386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 157.793796][ T1386] 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) 
[ 157.794134][ T1386] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  157.795334][ T1386] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[  157.795746][ T1386] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  157.796234][ T1386] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  157.796726][ T1386] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
[  157.797223][ T1386] R10: ffffc900005d7010 R11: ffffffff9d5798a0 R12: 1ffff920000bade2
[  157.797701][ T1386] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff88800934af08
[  157.798187][ T1386] FS:  00007f9df9de9800(0000) GS:ffff888097227000(0000) knlGS:0000000000000000
[  157.798748][ T1386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  157.799195][ T1386] CR2: 00000000004e6888 CR3: 0000000004f5c003 CR4: 0000000000772ef0
[  157.799690][ T1386] PKRU: 55555554
[  157.799947][ T1386] Call Trace:
[  157.800199][ T1386]  <TASK>
[ 157.800364][ T1386] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 157.800686][ T1386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.801023][ T1386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.801346][ T1386] netif_set_mtu (net/core/dev.c:9652) 
[ 157.801671][ T1386] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 157.802030][ T1386] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 157.802272][ T1386] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 157.802707][ T1386] br_add_if (net/bridge/br_if.c:697) bridge 
[ 157.803115][ T1386] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 157.803439][ T1386] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 157.803756][ T1386] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 157.804177][ T1386] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 157.804500][ T1386] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 157.804811][ T1386] ? __kernel_text_address (kernel/extable.c:79) 
[ 157.805156][ T1386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.805479][ T1386] ? __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) 
[ 157.805796][ T1386] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 157.806203][ T1386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.806529][ T1386] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 157.806847][ T1386] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 157.807243][ T1386] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 157.807586][ T1386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.807937][ T1386] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 157.808252][ T1386] ? __create_object (mm/kmemleak.c:771) 
[ 157.808578][ T1386] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 157.808905][ T1386] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 157.809246][ T1386] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 157.809638][ T1386] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 157.809974][ T1386] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 157.810299][ T1386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.810612][ T1386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.810948][ T1386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.811298][ T1386] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 157.811612][ T1386] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.811952][ T1386] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 157.812267][ T1386] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 157.812582][ T1386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.812911][ T1386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.813244][ T1386] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 157.813563][ T1386] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 157.813902][ T1386] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 157.814249][ T1386] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 157.814562][ T1386] ? 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) 
[ 157.814901][ T1386] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 157.815266][ T1386] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 157.815583][ T1386] ? __create_object (mm/kmemleak.c:771) 
[ 157.815932][ T1386] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.816265][ T1386] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 157.816601][ T1386] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 157.816932][ T1386] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 157.817250][ T1386] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 157.817583][ T1386] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 157.817920][ T1386] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 157.818268][ T1386] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 157.818682][ T1386] ___sys_sendmsg (net/socket.c:2670) 
[ 157.819056][ T1386] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 157.819445][ T1386] ? __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) 
[ 157.819880][ T1386] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 157.820223][ T1386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.820551][ T1386] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 157.820899][ T1386] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 157.821235][ T1386] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 157.821565][ T1386] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 157.821928][ T1386] __sys_sendmsg (net/socket.c:2700) 
[ 157.822266][ T1386] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 157.822598][ T1386] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
[ 157.822951][ T1386] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
[ 157.823402][ T1386] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 157.823732][ T1386] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  157.824189][ T1386] RIP: 0033:0x7f9df9fb61e7
[ 157.824541][ T1386] 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)
[  157.825718][ T1386] RSP: 002b:00007ffc3589e138 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  157.826214][ T1386] RAX: ffffffffffffffda RBX: 00007ffc3589e860 RCX: 00007f9df9fb61e7
[  157.826711][ T1386] RDX: 0000000000000000 RSI: 00007ffc3589e1a0 RDI: 0000000000000005
[  157.827251][ T1386] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  157.827764][ T1386] R10: 000000001fea7910 R11: 0000000000000246 R12: 0000000000000003
[  157.828276][ T1386] R13: 00000000686e6bc6 R14: 0000000000499600 R15: 0000000000000000
| [  158.579208][ T1391] ------------[ cut here ]------------
| [ 158.579587][ T1391] WARNING: CPU: 1 PID: 1391 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) 
| [  158.580278][ T1391] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [  158.581906][ T1391] Tainted: [W]=WARN
[  158.582167][ T1391] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.582576][ T1391] 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) 
[ 158.582925][ T1391] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  158.584106][ T1391] RSP: 0018:ffffc900006a6ef0 EFLAGS: 00010246
[  158.584534][ T1391] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  158.585194][ T1391] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  158.585693][ T1391] RBP: ffffc900006a6fe0 R08: 0000000000000000 R09: 0000000000000000
[  158.586225][ T1391] R10: ffffc900006a7010 R11: ffffffff9d5798a0 R12: 1ffff920000d4de2
[  158.586726][ T1391] R13: 00000000000005dc R14: ffffc900006a7010 R15: ffff88800934af08
[  158.587227][ T1391] FS:  00007ff7728c5800(0000) GS:ffff888097127000(0000) knlGS:0000000000000000
[  158.587824][ T1391] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.588248][ T1391] CR2: 00000000004e6888 CR3: 00000000126b8004 CR4: 0000000000772ef0
[  158.588745][ T1391] PKRU: 55555554
[  158.589021][ T1391] Call Trace:
[  158.589275][ T1391]  <TASK>
[ 158.589447][ T1391] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 158.589780][ T1391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.590129][ T1391] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.590465][ T1391] netif_set_mtu (net/core/dev.c:9652) 
[ 158.590796][ T1391] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 158.591155][ T1391] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 158.591414][ T1391] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 158.591879][ T1391] br_add_if (net/bridge/br_if.c:697) bridge 
[ 158.592253][ T1391] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 158.592587][ T1391] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 158.592944][ T1391] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 158.593362][ T1391] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 158.593690][ T1391] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 158.594039][ T1391] ? __kernel_text_address (kernel/extable.c:79) 
[ 158.594380][ T1391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.594716][ T1391] ? __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) 
[ 158.595059][ T1391] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 158.595470][ T1391] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.595799][ T1391] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 158.596137][ T1391] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 158.596472][ T1391] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 158.596803][ T1391] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.597143][ T1391] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 158.597474][ T1391] ? __create_object (mm/kmemleak.c:771) 
[ 158.597820][ T1391] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 158.598163][ T1391] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 158.598493][ T1391] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 158.598909][ T1391] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 158.599254][ T1391] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 158.599582][ T1391] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.599904][ T1391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.600247][ T1391] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.600567][ T1391] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 158.600907][ T1391] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.601233][ T1391] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 158.601551][ T1391] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 158.601896][ T1391] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.602218][ T1391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.602533][ T1391] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 158.602852][ T1391] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 158.603187][ T1391] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 158.603515][ T1391] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 158.603825][ T1391] ? 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) 
[ 158.604170][ T1391] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 158.604500][ T1391] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 158.604826][ T1391] ? __create_object (mm/kmemleak.c:771) 
[ 158.605163][ T1391] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.605500][ T1391] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 158.605828][ T1391] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 158.606164][ T1391] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 158.606492][ T1391] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 158.606809][ T1391] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 158.607141][ T1391] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 158.607465][ T1391] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 158.607903][ T1391] ___sys_sendmsg (net/socket.c:2670) 
[ 158.608218][ T1391] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 158.608529][ T1391] ? __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) 
[ 158.608937][ T1391] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 158.609268][ T1391] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.609600][ T1391] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 158.609950][ T1391] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 158.610279][ T1391] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 158.610596][ T1391] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 158.610928][ T1391] __sys_sendmsg (net/socket.c:2700) 
[ 158.611256][ T1391] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 158.611575][ T1391] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
[ 158.611916][ T1391] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
[ 158.612318][ T1391] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 158.612637][ T1391] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.613053][ T1391] RIP: 0033:0x7ff772a921e7
[ 158.613386][ T1391] 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)
[  158.614558][ T1391] RSP: 002b:00007ffe3a6f0258 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  158.615055][ T1391] RAX: ffffffffffffffda RBX: 00007ffe3a6f0980 RCX: 00007ff772a921e7
[  158.615531][ T1391] RDX: 0000000000000000 RSI: 00007ffe3a6f02c0 RDI: 0000000000000005
[  158.616031][ T1391] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  158.616516][ T1391] R10: 0000000009b68910 R11: 0000000000000246 R12: 0000000000000003
[  158.617016][ T1391] R13: 00000000686e6bc7 R14: 0000000000499600 R15: 0000000000000000
| [  159.363510][ T1396] ------------[ cut here ]------------
| [ 159.363839][ T1396] WARNING: CPU: 0 PID: 1396 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) 
| [  159.364469][ T1396] Modules linked in: bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [  159.366131][ T1396] Tainted: [W]=WARN
[  159.366378][ T1396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.366984][ T1396] 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) 
[ 159.367312][ T1396] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  159.368459][ T1396] RSP: 0018:ffffc9000072eef0 EFLAGS: 00010246
[  159.368853][ T1396] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  159.369359][ T1396] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  159.369838][ T1396] RBP: ffffc9000072efe0 R08: 0000000000000000 R09: 0000000000000000
[  159.370478][ T1396] R10: ffffc9000072f010 R11: ffffffff9d5798a0 R12: 1ffff920000e5de2
[  159.371100][ T1396] R13: 00000000000005dc R14: ffffc9000072f010 R15: ffff88800934af08
[  159.371580][ T1396] FS:  00007fb69055c800(0000) GS:ffff8880970a7000(0000) knlGS:0000000000000000
[  159.372135][ T1396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  159.372543][ T1396] CR2: 00000000004e5770 CR3: 0000000005214002 CR4: 0000000000772ef0
[  159.373024][ T1396] PKRU: 55555554
[  159.373258][ T1396] Call Trace:
[  159.373503][ T1396]  <TASK>
[ 159.373664][ T1396] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 159.374001][ T1396] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.374329][ T1396] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.374655][ T1396] netif_set_mtu (net/core/dev.c:9652) 
[ 159.374994][ T1396] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 159.375338][ T1396] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 159.375598][ T1396] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 159.376056][ T1396] br_add_if (net/bridge/br_if.c:697) bridge 
[ 159.376410][ T1396] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 159.376729][ T1396] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 159.377073][ T1396] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 159.377473][ T1396] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 159.377816][ T1396] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 159.378143][ T1396] ? __kernel_text_address (kernel/extable.c:79) 
[ 159.378462][ T1396] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.378784][ T1396] ? __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) 
[ 159.379123][ T1396] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 159.379520][ T1396] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 159.379837][ T1396] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 159.380184][ T1396] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 159.380509][ T1396] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 159.380821][ T1396] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.381153][ T1396] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 159.381469][ T1396] ? __create_object (mm/kmemleak.c:771) 
[ 159.381794][ T1396] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 159.382143][ T1396] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 159.382456][ T1396] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 159.382848][ T1396] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 159.383208][ T1396] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 159.383560][ T1396] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.383895][ T1396] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.384232][ T1396] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.384546][ T1396] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 159.384852][ T1396] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 159.385173][ T1396] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 159.385491][ T1396] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 159.385801][ T1396] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.386135][ T1396] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.386456][ T1396] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 159.386764][ T1396] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 159.387113][ T1396] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 159.387434][ T1396] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 159.387752][ T1396] ? 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) 
[ 159.388089][ T1396] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 159.388420][ T1396] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 159.388727][ T1396] ? __create_object (mm/kmemleak.c:771) 
[ 159.389072][ T1396] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 159.389385][ T1396] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 159.389705][ T1396] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 159.390028][ T1396] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 159.390350][ T1396] ? __kasan_kmalloc (mm/kasan/common.c:398) 
[ 159.390672][ T1396] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 159.391002][ T1396] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 159.391313][ T1396] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 159.391731][ T1396] ___sys_sendmsg (net/socket.c:2670) 
[ 159.392076][ T1396] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 159.392393][ T1396] ? __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) 
[ 159.392791][ T1396] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 159.393121][ T1396] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.393435][ T1396] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 159.393761][ T1396] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 159.394090][ T1396] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 159.394414][ T1396] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 159.394733][ T1396] __sys_sendmsg (net/socket.c:2700) 
[ 159.395049][ T1396] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 159.395368][ T1396] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
[ 159.395681][ T1396] ? audit_reset_context.part.0.constprop.0 (./include/linux/list.h:373 kernel/auditsc.c:1025) 
[ 159.396102][ T1396] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 159.396429][ T1396] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  159.396826][ T1396] RIP: 0033:0x7fb6907291e7
[ 159.397161][ T1396] 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)
[  159.398328][ T1396] RSP: 002b:00007ffc595f7d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  159.398811][ T1396] RAX: ffffffffffffffda RBX: 00007ffc595f8480 RCX: 00007fb6907291e7
[  159.399301][ T1396] RDX: 0000000000000000 RSI: 00007ffc595f7dc0 RDI: 0000000000000005
[  159.399778][ T1396] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  159.400269][ T1396] R10: 000000002dd01910 R11: 0000000000000246 R12: 0000000000000003
[  159.400737][ T1396] R13: 00000000686e6bc7 R14: 0000000000499600 R15: 0000000000000000
| [  174.136797][   T67] ------------[ cut here ]------------
| [ 174.139170][ T67] WARNING: CPU: 1 PID: 67 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) 
| [  174.140675][   T67] Modules linked in: nf_conntrack_netlink nfnetlink_queue nft_queue nft_ct nf_conntrack br_netfilter bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [  174.144722][   T67] Tainted: [W]=WARN
[  174.145136][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  174.145835][   T67] Workqueue: netns cleanup_net
[ 174.146459][ T67] 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) 
[ 174.147038][ T67] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  174.149045][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  174.149703][   T67] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  174.150462][   T67] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  174.151267][   T67] RBP: ffffc900004876a0 R08: 0000000000000000 R09: 0000000000000000
[  174.152088][   T67] R10: ffffc900004876d0 R11: ffffffff99c914d8 R12: 1ffff92000090eba
[  174.152904][   T67] R13: 00000000000005dc R14: ffffc900004876d0 R15: ffff88800934af08
[  174.153444][   T67] FS:  0000000000000000(0000) GS:ffff888097127000(0000) knlGS:0000000000000000
[  174.154031][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.154427][   T67] CR2: 0000564cbbbd2dec CR3: 000000000a52f005 CR4: 0000000000772ef0
[  174.154900][   T67] PKRU: 55555554
[  174.155156][   T67] Call Trace:
[  174.155407][   T67]  <TASK>
[ 174.155565][ T67] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 174.155910][ T67] ? __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) 
[ 174.156320][ T67] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 174.156684][ T67] ? br_device_event (net/bridge/br.c:141) bridge 
[ 174.157060][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 174.157383][ T67] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 174.157733][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 174.158088][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 174.158438][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.158775][ T67] ? kthread (kernel/kthread.c:464) 
[ 174.159042][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.159360][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 174.159678][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 174.160100][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 174.160656][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 174.161276][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 174.161703][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 174.162483][ T67] br_del_if (net/bridge/br_if.c:743) bridge 
[ 174.163118][ T67] br_device_event (net/bridge/br.c:141) bridge 
[ 174.163730][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) bridge 
[ 174.164514][ T67] ? nft_offload_netdev_event (net/netfilter/nf_tables_offload.c:684) nf_tables 
[ 174.165320][ T67] notifier_call_chain (kernel/notifier.c:87 (discriminator 2)) 
[ 174.165737][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 174.166162][ T67] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 174.166479][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 174.166874][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 174.167273][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.167682][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.168111][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 174.168439][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 174.168843][ T67] ops_undo_list (net/core/net_namespace.c:250) 
[ 174.169322][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 174.169635][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 174.169986][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 174.170315][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 174.170637][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.170974][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 174.171304][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 174.171623][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 174.171994][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.172344][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 174.172659][ T67] kthread (kernel/kthread.c:464) 
[ 174.172916][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.173462][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 174.174034][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 174.174612][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.175191][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.175765][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.176331][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.176906][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  174.784610][   T67] ------------[ cut here ]------------
| [ 174.784984][ T67] WARNING: CPU: 1 PID: 67 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) 
| [  174.785577][   T67] Modules linked in: nf_conntrack_netlink nfnetlink_queue nft_queue nft_ct nf_conntrack br_netfilter bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [  174.787802][   T67] Tainted: [W]=WARN
[  174.788117][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  174.788544][   T67] Workqueue: netns cleanup_net
[ 174.788906][ T67] 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) 
[ 174.789249][ T67] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  174.790476][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  174.790918][   T67] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  174.791424][   T67] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  174.791949][   T67] RBP: ffffc900004876a0 R08: 0000000000000000 R09: 0000000000000000
[  174.792462][   T67] R10: ffffc900004876d0 R11: ffffffff9d5798a0 R12: 1ffff92000090eba
[  174.792976][   T67] R13: 00000000000005dc R14: ffffc900004876d0 R15: ffff88800934af08
[  174.793482][   T67] FS:  0000000000000000(0000) GS:ffff888097127000(0000) knlGS:0000000000000000
[  174.794077][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.794499][   T67] CR2: 00007f521133bb00 CR3: 000000002a736004 CR4: 0000000000772ef0
[  174.795020][   T67] PKRU: 55555554
[  174.795279][   T67] Call Trace:
[  174.795525][   T67]  <TASK>
[ 174.795698][ T67] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 174.796058][ T67] ? __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) 
[ 174.796472][ T67] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 174.796849][ T67] ? br_device_event (net/bridge/br.c:141) bridge 
[ 174.797224][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 174.797565][ T67] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 174.797915][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 174.798244][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 174.798589][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.798920][ T67] ? kthread (kernel/kthread.c:464) 
[ 174.799164][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.799493][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 174.799809][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 174.800162][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 174.800483][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 174.800814][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 174.801073][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 174.801501][ T67] br_del_if (net/bridge/br_if.c:743) bridge 
[ 174.801846][ T67] br_device_event (net/bridge/br.c:141) bridge 
[ 174.802204][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) bridge 
[ 174.802620][ T67] ? nft_offload_netdev_event (net/netfilter/nf_tables_offload.c:684) nf_tables 
[ 174.803077][ T67] notifier_call_chain (kernel/notifier.c:87 (discriminator 2)) 
[ 174.803402][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 174.803816][ T67] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 174.804147][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 174.804540][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 174.804949][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.805360][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 174.805770][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 174.806131][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 174.806539][ T67] ops_undo_list (net/core/net_namespace.c:250) 
[ 174.806881][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 174.807196][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 174.807520][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 174.807851][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 174.808197][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.808524][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 174.808874][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 174.809219][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 174.809545][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 174.809899][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 174.810221][ T67] kthread (kernel/kthread.c:464) 
[ 174.810458][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.810772][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 174.811099][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 174.811417][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 174.811737][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.812067][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 174.812378][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 174.812689][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  175.384366][   T67] ------------[ cut here ]------------
| [ 175.384771][ T67] WARNING: CPU: 1 PID: 67 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) 
| [  175.385482][   T67] Modules linked in: nf_conntrack_netlink nfnetlink_queue nft_queue nft_ct nf_conntrack br_netfilter bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [  175.387960][   T67] Tainted: [W]=WARN
[  175.388276][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  175.388677][   T67] Workqueue: netns cleanup_net
[ 175.389123][ T67] 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) 
[ 175.389464][ T67] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  175.390794][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  175.391405][   T67] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  175.391976][   T67] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  175.392588][   T67] RBP: ffffc900004876a0 R08: 0000000000000000 R09: 0000000000000000
[  175.393080][   T67] R10: ffffc900004876d0 R11: ffffffff9d5798a0 R12: 1ffff92000090eba
[  175.393639][   T67] R13: 00000000000005dc R14: ffffc900004876d0 R15: ffff88800934af08
[  175.394148][   T67] FS:  0000000000000000(0000) GS:ffff888097127000(0000) knlGS:0000000000000000
[  175.394774][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  175.395256][   T67] CR2: 00007f521133bb00 CR3: 000000002a736004 CR4: 0000000000772ef0
[  175.395833][   T67] PKRU: 55555554
[  175.396145][   T67] Call Trace:
[  175.396385][   T67]  <TASK>
[ 175.396624][ T67] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 175.396965][ T67] ? __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) 
[ 175.397357][ T67] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 175.397820][ T67] ? br_device_event (net/bridge/br.c:141) bridge 
[ 175.398282][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 175.398657][ T67] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 175.399007][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 175.399332][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 175.399664][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 175.400054][ T67] ? kthread (kernel/kthread.c:464) 
[ 175.400450][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 175.400758][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 175.401097][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 175.401420][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 175.401774][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 175.402188][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 175.402428][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 175.402858][ T67] br_del_if (net/bridge/br_if.c:743) bridge 
[ 175.403285][ T67] br_device_event (net/bridge/br.c:141) bridge 
[ 175.403735][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) bridge 
[ 175.404187][ T67] ? nft_offload_netdev_event (net/netfilter/nf_tables_offload.c:684) nf_tables 
[ 175.404763][ T67] notifier_call_chain (kernel/notifier.c:87 (discriminator 2)) 
[ 175.405276][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 175.405728][ T67] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 175.406075][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 175.406552][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 175.406963][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 175.407389][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 175.408333][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 175.408777][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 175.409571][ T67] ops_undo_list (net/core/net_namespace.c:250) 
[ 175.410195][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 175.410631][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 175.411162][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 175.411482][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 175.411796][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 175.412144][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 175.412470][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 175.412795][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 175.413129][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 175.413473][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 175.413788][ T67] kthread (kernel/kthread.c:464) 
[ 175.414043][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 175.414361][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 175.414677][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 175.415016][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 175.415331][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 175.415648][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 175.416014][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 175.416496][ T67] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [  176.008555][   T67] ------------[ cut here ]------------
| [ 176.008892][ T67] WARNING: CPU: 1 PID: 67 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) 
| [  176.009445][   T67] Modules linked in: nf_conntrack_netlink nfnetlink_queue nft_queue nft_ct nf_conntrack br_netfilter bridge stp llc tcp_diag nft_quota inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
| [  176.011653][   T67] Tainted: [W]=WARN
[  176.012039][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  176.012428][   T67] Workqueue: netns cleanup_net
[ 176.012751][ T67] 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) 
[ 176.013179][ T67] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[  176.014329][   T67] RSP: 0018:ffffc900004875b0 EFLAGS: 00010246
[  176.014722][   T67] RAX: 0000000000000000 RBX: ffff88800934a000 RCX: 0000000000000001
[  176.015196][   T67] RDX: 0000000000000000 RSI: ffffffff9d09f52e RDI: ffffffff9c85a5a0
[  176.015655][   T67] RBP: ffffc900004876a0 R08: 0000000000000000 R09: 0000000000000000
[  176.016131][   T67] R10: ffffc900004876d0 R11: ffffffff9d5798a0 R12: 1ffff92000090eba
[  176.016590][   T67] R13: 00000000000005dc R14: ffffc900004876d0 R15: ffff88800934af08
[  176.017061][   T67] FS:  0000000000000000(0000) GS:ffff888097127000(0000) knlGS:0000000000000000
[  176.017623][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.018046][   T67] CR2: 00007f03f3c4ef93 CR3: 000000002a736004 CR4: 0000000000772ef0
[  176.018515][   T67] PKRU: 55555554
[  176.018748][   T67] Call Trace:
[  176.018989][   T67]  <TASK>
[ 176.019144][ T67] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 176.019453][ T67] ? __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) 
[ 176.019833][ T67] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 176.020204][ T67] ? br_device_event (net/bridge/br.c:141) bridge 
[ 176.020544][ T67] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 176.020850][ T67] ? ops_undo_list (net/core/net_namespace.c:250) 
[ 176.021170][ T67] ? cleanup_net (net/core/net_namespace.c:684) 
[ 176.021476][ T67] ? process_one_work (kernel/workqueue.c:3238) 
[ 176.021783][ T67] ? worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.022115][ T67] ? kthread (kernel/kthread.c:464) 
[ 176.022350][ T67] ? ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.022662][ T67] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 176.022985][ T67] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 176.023303][ T67] netif_set_mtu (net/core/dev.c:9652) 
[ 176.023611][ T67] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 176.023948][ T67] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 176.024192][ T67] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 176.024634][ T67] br_del_if (net/bridge/br_if.c:743) bridge 
[ 176.024983][ T67] br_device_event (net/bridge/br.c:141) bridge 
[ 176.025332][ T67] ? __pfx_br_device_event (net/bridge/br.c:29) bridge 
[ 176.025743][ T67] ? nft_offload_netdev_event (net/netfilter/nf_tables_offload.c:684) nf_tables 
[ 176.026197][ T67] notifier_call_chain (kernel/notifier.c:87 (discriminator 2)) 
[ 176.026518][ T67] unregister_netdevice_many_notify (net/core/dev.c:12107) 
[ 176.026919][ T67] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:67) 
[ 176.027224][ T67] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:12032) 
[ 176.027621][ T67] ? unregister_netdevice_queue (net/core/dev.c:12004) 
[ 176.028022][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.028407][ T67] ? __pfx_unregister_netdevice_queue (net/core/dev.c:12003) 
[ 176.028797][ T67] default_device_exit_batch (net/core/dev.c:12673) 
[ 176.029122][ T67] ? __pfx_default_device_exit_batch (net/core/dev.c:12648) 
[ 176.029516][ T67] ops_undo_list (net/core/net_namespace.c:250) 
[ 176.029856][ T67] ? __pfx_ops_undo_list (net/core/net_namespace.c:222) 
[ 176.030219][ T67] ? cleanup_net (./include/linux/list.h:183 net/core/net_namespace.c:679) 
[ 176.030556][ T67] cleanup_net (net/core/net_namespace.c:684) 
[ 176.030900][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:648) 
[ 176.031233][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.031565][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 176.031910][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 176.032243][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 176.032581][ T67] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 176.032927][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 176.033255][ T67] kthread (kernel/kthread.c:464) 
[ 176.033501][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.033823][ T67] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 176.034176][ T67] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 176.034510][ T67] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 176.034835][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 176.035180][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 176.035503][ T67] ? __pfx_kthread (kernel/kthread.c:413) 


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