======================================
| [   45.421065][  T394] 1 lock held by ip/394:
| [ 45.421204][ T394] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   45.421557][  T394]
| [   45.421557][  T394] stack backtrace:
[   45.422080][  T394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   45.422476][  T394] Call Trace:
[   45.422672][  T394]  <TASK>
[ 45.422821][ T394] dump_stack_lvl (lib/dump_stack.c:122) 
[ 45.423117][ T394] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 45.423385][ T394] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 45.423854][ T394] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge
[ 45.424258][ T394] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 45.424593][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.424961][ T394] br_add_if (net/bridge/br_if.c:692) bridge
[ 45.425323][ T394] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 45.425627][ T394] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 45.425998][ T394] do_setlink (net/core/rtnetlink.c:2907) 
[ 45.426296][ T394] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 45.426601][ T394] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 45.426896][ T394] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 45.427188][ T394] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 45.427482][ T394] ? __kernel_text_address (kernel/extable.c:79) 
[ 45.427775][ T394] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 45.428069][ T394] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 45.428444][ T394] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 45.428752][ T394] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 45.428969][ T394] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 45.429148][ T394] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 45.429331][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 45.429471][ T394] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 45.429667][ T394] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 45.430229][ T394] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 45.430480][ T394] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) 
[ 45.430665][ T394] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 45.430851][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.431086][ T394] ? __create_object (mm/kmemleak.c:751) 
[ 45.431270][ T394] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 45.431458][ T394] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 45.431596][ T394] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 45.431791][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 45.431981][ T394] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) 
[ 45.432160][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 45.432300][ T394] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 45.432482][ T394] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 45.432668][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 45.432851][ T394] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 45.433053][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 45.433235][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 45.433418][ T394] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 45.433599][ T394] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 45.433778][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 45.433998][ T394] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 45.434190][ T394] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 45.434366][ T394] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 45.434554][ T394] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 45.434741][ T394] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 45.434939][ T394] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 45.435120][ T394] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 45.435344][ T394] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 45.435533][ T394] ___sys_sendmsg (net/socket.c:2653) 
[ 45.435716][ T394] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 45.435908][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 45.436093][ T394] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 45.436270][ T394] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 45.436497][ T394] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 45.436680][ T394] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 45.436866][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.437101][ T394] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 45.437288][ T394] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 45.437468][ T394] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 45.437642][ T394] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 45.437844][ T394] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.438035][ T394] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.438274][  T394] RIP: 0033:0x7f48446f87b7
[ 45.438462][ T394] Code: 0a 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:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   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)
[   45.439088][  T394] RSP: 002b:00007ffc68a7d358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.439359][  T394] RAX: ffffffffffffffda RBX: 00007ffc68a7da80 RCX: 00007f48446f87b7
[   45.439620][  T394] RDX: 0000000000000000 RSI: 00007ffc68a7d3c0 RDI: 0000000000000005
[   45.439901][  T394] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   45.440166][  T394] R10: 00000000226bb910 R11: 0000000000000246 R12: 0000000000000004
[   45.440433][  T394] R13: 0000000066be9e30 R14: 0000000000496600 R15: 0000000000000000
| [   45.442614][  T394] 1 lock held by ip/394:
| [ 45.442753][ T394] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   45.443203][  T394]
| [   45.443203][  T394] stack backtrace:
[   45.443846][  T394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   45.444243][  T394] Call Trace:
[   45.444381][  T394]  <TASK>
[ 45.444478][ T394] dump_stack_lvl (lib/dump_stack.c:122) 
[ 45.444666][ T394] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 45.444844][ T394] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 45.445122][ T394] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge
[ 45.445379][ T394] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 45.445591][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.445814][ T394] br_add_if (net/bridge/br_if.c:692) bridge
[ 45.446037][ T394] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 45.446217][ T394] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 45.446447][ T394] do_setlink (net/core/rtnetlink.c:2907) 
[ 45.446632][ T394] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 45.446813][ T394] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 45.446998][ T394] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 45.447180][ T394] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 45.447361][ T394] ? __kernel_text_address (kernel/extable.c:79) 
[ 45.447538][ T394] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 45.447715][ T394] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 45.447948][ T394] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 45.448154][ T394] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 45.448337][ T394] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 45.448517][ T394] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 45.448700][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 45.448840][ T394] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 45.449037][ T394] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 45.449223][ T394] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 45.449429][ T394] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) 
[ 45.449637][ T394] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 45.449854][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.450089][ T394] ? __create_object (mm/kmemleak.c:751) 
[ 45.450272][ T394] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 45.450478][ T394] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 45.450616][ T394] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 45.450814][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 45.451052][ T394] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) 
[ 45.451237][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 45.451381][ T394] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 45.451560][ T394] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 45.451740][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 45.451934][ T394] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 45.452153][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 45.452342][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 45.452538][ T394] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 45.452733][ T394] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 45.452952][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 45.453153][ T394] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 45.453336][ T394] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 45.453520][ T394] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 45.453717][ T394] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 45.453922][ T394] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 45.454146][ T394] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 45.454322][ T394] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 45.454564][ T394] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 45.454754][ T394] ___sys_sendmsg (net/socket.c:2653) 
[ 45.454959][ T394] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 45.455139][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 45.455321][ T394] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 45.455496][ T394] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 45.455717][ T394] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 45.455912][ T394] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 45.456108][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.456333][ T394] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 45.456520][ T394] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 45.456698][ T394] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 45.456878][ T394] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 45.457087][ T394] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.457268][ T394] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.457494][  T394] RIP: 0033:0x7f48446f87b7
[ 45.457687][ T394] Code: 0a 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:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   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)
[   45.458365][  T394] RSP: 002b:00007ffc68a7d358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.458666][  T394] RAX: ffffffffffffffda RBX: 00007ffc68a7da80 RCX: 00007f48446f87b7
[   45.458974][  T394] RDX: 0000000000000000 RSI: 00007ffc68a7d3c0 RDI: 0000000000000005
[   45.459246][  T394] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   45.459529][  T394] R10: 00000000226bb910 R11: 0000000000000246 R12: 0000000000000004
[   45.459812][  T394] R13: 0000000066be9e30 R14: 0000000000496600 R15: 0000000000000000
| [   45.462237][  T394] 1 lock held by ip/394:
| [ 45.462386][ T394] #0: ffffffff9c7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   45.462716][  T394]
| [   45.462716][  T394] stack backtrace:
[   45.463309][  T394] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   45.463808][  T394] Call Trace:
[   45.463946][  T394]  <TASK>
[ 45.464044][ T394] dump_stack_lvl (lib/dump_stack.c:122) 
[ 45.464232][ T394] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 45.464411][ T394] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 45.464873][ T394] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge
[ 45.465133][ T394] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 45.465348][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.465572][ T394] br_add_if (net/bridge/br_if.c:692) bridge
[ 45.465880][ T394] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 45.466059][ T394] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 45.466286][ T394] do_setlink (net/core/rtnetlink.c:2907) 
[ 45.466468][ T394] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 45.466747][ T394] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 45.466927][ T394] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 45.467108][ T394] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 45.467288][ T394] ? __kernel_text_address (kernel/extable.c:79) 
[ 45.467583][ T394] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 45.467762][ T394] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 45.467986][ T394] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 45.468191][ T394] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 45.468375][ T394] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 45.468584][ T394] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 45.468765][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 45.468918][ T394] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 45.469104][ T394] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 45.469314][ T394] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 45.469520][ T394] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) 
[ 45.469711][ T394] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 45.469920][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.470258][ T394] ? __create_object (mm/kmemleak.c:751) 
[ 45.470439][ T394] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 45.470649][ T394] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 45.470788][ T394] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 45.471094][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 45.471293][ T394] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) 
[ 45.471472][ T394] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 45.471623][ T394] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 45.471927][ T394] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 45.472123][ T394] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 45.472322][ T394] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 45.472539][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 45.472718][ T394] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 45.473002][ T394] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 45.473198][ T394] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 45.473384][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 45.473591][ T394] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 45.473886][ T394] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 45.474069][ T394] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 45.474259][ T394] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 45.474449][ T394] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 45.474743][ T394] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 45.474944][ T394] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 45.475175][ T394] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 45.475369][ T394] ___sys_sendmsg (net/socket.c:2653) 
[ 45.475657][ T394] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 45.475854][ T394] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 45.476038][ T394] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 45.476236][ T394] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 45.476571][ T394] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 45.476753][ T394] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 45.476942][ T394] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 45.477161][ T394] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 45.477477][ T394] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 45.477653][ T394] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 45.477853][ T394] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 45.478078][ T394] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.478273][ T394] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.478498][  T394] RIP: 0033:0x7f48446f87b7
[ 45.478705][ T394] Code: 0a 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:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   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)
[   45.479467][  T394] RSP: 002b:00007ffc68a7d358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.479741][  T394] RAX: ffffffffffffffda RBX: 00007ffc68a7da80 RCX: 00007f48446f87b7
[   45.480123][  T394] RDX: 0000000000000000 RSI: 00007ffc68a7d3c0 RDI: 0000000000000005
[   45.480411][  T394] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   45.480691][  T394] R10: 00000000226bb910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink