======================================
| [   33.222541][  T307] 1 lock held by ip/307:
| [ 33.222671][ T307] #0: ffffffff9fdbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.222988][  T307]
| [   33.222988][  T307] stack backtrace:
[   33.223471][  T307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.223843][  T307] Call Trace:
[   33.223977][  T307]  <TASK>
[ 33.224066][ T307] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.224241][ T307] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.224409][ T307] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.224674][ T307] 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
[ 33.225076][ T307] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.225275][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.225488][ T307] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.225796][ T307] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.225965][ T307] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.226181][ T307] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.226350][ T307] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.226525][ T307] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.226691][ T307] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.226855][ T307] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.227024][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.227197][ T307] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.227367][ T307] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.227574][ T307] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.227760][ T307] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.227930][ T307] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.228102][ T307] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.228274][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.228406][ T307] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.228681][ T307] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.228861][ T307] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.229030][ T307] ? 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) 
[ 33.229201][ T307] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.229383][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.229600][ T307] ? __create_object (mm/kmemleak.c:751) 
[ 33.229778][ T307] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.229955][ T307] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.230092][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.230359][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.230525][ T307] ? 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) 
[ 33.230695][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.230832][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.231212][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.231389][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.231559][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.231743][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.231929][ T307] ? 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) 
[ 33.232099][ T307] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.232375][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.232543][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.232714][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.232884][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.233048][ T307] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.233318][ T307] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.233506][ T307] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.233687][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.233858][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.234168][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.234348][ T307] ___sys_sendmsg (net/socket.c:2653) 
[ 33.234517][ T307] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.234683][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.234862][ T307] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.235030][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.235335][ T307] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.235509][ T307] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.235694][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.235903][ T307] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.236174][ T307] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.236342][ T307] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.236515][ T307] ? __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) 
[ 33.236706][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.236969][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.237181][  T307] RIP: 0033:0x7f79fc0657b7
[ 33.237361][ T307] 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)
[   33.238052][  T307] RSP: 002b:00007ffcba5308f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.238312][  T307] RAX: ffffffffffffffda RBX: 00007ffcba531020 RCX: 00007f79fc0657b7
[   33.238674][  T307] RDX: 0000000000000000 RSI: 00007ffcba530960 RDI: 0000000000000005
[   33.238925][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.239174][  T307] R10: 000000002bd0f910 R11: 0000000000000246 R12: 0000000000000004
[   33.239431][  T307] R13: 0000000066be9f07 R14: 0000000000496600 R15: 0000000000000000
| [   33.242757][  T307] 1 lock held by ip/307:
| [ 33.242897][ T307] #0: ffffffff9fdbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.243233][  T307]
| [   33.243233][  T307] stack backtrace:
[   33.243723][  T307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.244114][  T307] Call Trace:
[   33.244253][  T307]  <TASK>
[ 33.244352][ T307] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.244634][ T307] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.244804][ T307] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.245054][ T307] 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
[ 33.245301][ T307] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.245497][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.245718][ T307] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.245926][ T307] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.246101][ T307] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.246314][ T307] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.246495][ T307] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.246664][ T307] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.246838][ T307] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.247128][ T307] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.247306][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.247474][ T307] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.247660][ T307] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.247970][ T307] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.248163][ T307] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.248342][ T307] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.248509][ T307] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.248685][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.248817][ T307] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.249092][ T307] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.249265][ T307] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.249440][ T307] ? 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) 
[ 33.249608][ T307] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.249782][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.249995][ T307] ? __create_object (mm/kmemleak.c:751) 
[ 33.250264][ T307] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.250551][ T307] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.250680][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.250853][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.251031][ T307] ? 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) 
[ 33.251205][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.251339][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.251509][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.251694][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.251986][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.252176][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.252346][ T307] ? 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) 
[ 33.252517][ T307] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.252688][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.252860][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.253138][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.253313][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.253480][ T307] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.253657][ T307] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.253835][ T307] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.254010][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.254174][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.254484][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.254669][ T307] ___sys_sendmsg (net/socket.c:2653) 
[ 33.254843][ T307] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.255017][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.255298][ T307] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.255604][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.255818][ T307] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.255988][ T307] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.256167][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.256384][ T307] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.256670][ T307] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.256833][ T307] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.257106][ T307] ? __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) 
[ 33.257299][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.257573][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.257812][  T307] RIP: 0033:0x7f79fc0657b7
[ 33.257993][ T307] 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)
[   33.258592][  T307] RSP: 002b:00007ffcba5308f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.258857][  T307] RAX: ffffffffffffffda RBX: 00007ffcba531020 RCX: 00007f79fc0657b7
[   33.259113][  T307] RDX: 0000000000000000 RSI: 00007ffcba530960 RDI: 0000000000000005
[   33.259384][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.259837][  T307] R10: 000000002bd0f910 R11: 0000000000000246 R12: 0000000000000004
[   33.260102][  T307] R13: 0000000066be9f07 R14: 0000000000496600 R15: 0000000000000000
| [   33.262751][  T307] 1 lock held by ip/307:
| [ 33.262882][ T307] #0: ffffffff9fdbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   33.263186][  T307]
| [   33.263186][  T307] stack backtrace:
[   33.263772][  T307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.264148][  T307] Call Trace:
[   33.264283][  T307]  <TASK>
[ 33.264376][ T307] dump_stack_lvl (lib/dump_stack.c:122) 
[ 33.264550][ T307] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 33.264719][ T307] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 33.264965][ T307] 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
[ 33.265212][ T307] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 33.265412][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.265623][ T307] br_add_if (net/bridge/br_if.c:692) bridge
[ 33.265845][ T307] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 33.266117][ T307] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 33.266332][ T307] do_setlink (net/core/rtnetlink.c:2907) 
[ 33.266499][ T307] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 33.266674][ T307] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 33.266944][ T307] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 33.267111][ T307] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 33.267277][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.267442][ T307] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 33.267709][ T307] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 33.267916][ T307] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 33.268093][ T307] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 33.268262][ T307] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 33.268432][ T307] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 33.268598][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.268731][ T307] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 33.268902][ T307] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 33.269076][ T307] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 33.269559][ T307] ? 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) 
[ 33.269727][ T307] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 33.269905][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.270117][ T307] ? __create_object (mm/kmemleak.c:751) 
[ 33.270384][ T307] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 33.270565][ T307] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 33.270795][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 33.270971][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.271136][ T307] ? 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) 
[ 33.271311][ T307] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 33.271445][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 33.271716][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 33.271904][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 33.272228][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 33.272454][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 33.272637][ T307] ? 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) 
[ 33.272820][ T307] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 33.273009][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 33.273191][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.273381][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 33.273566][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 33.273858][ T307] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 33.274043][ T307] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 33.274230][ T307] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 33.274419][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 33.274704][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 33.274929][ T307] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 33.275120][ T307] ___sys_sendmsg (net/socket.c:2653) 
[ 33.275313][ T307] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 33.275603][ T307] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 33.275786][ T307] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 33.275954][ T307] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 33.276180][ T307] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 33.276354][ T307] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 33.276532][ T307] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 33.276750][ T307] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 33.276927][ T307] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 33.277097][ T307] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 33.277268][ T307] ? __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) 
[ 33.277461][ T307] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.277630][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.277852][  T307] RIP: 0033:0x7f79fc0657b7
[ 33.278028][ T307] 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)
[   33.278612][  T307] RSP: 002b:00007ffcba5308f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.278870][  T307] RAX: ffffffffffffffda RBX: 00007ffcba531020 RCX: 00007f79fc0657b7
[   33.279116][  T307] RDX: 0000000000000000 RSI: 00007ffcba530960 RDI: 0000000000000005
[   33.279374][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.279628][  T307] R10: 000000002bd0f910 R11: 0000000000000246 R12: 0000000000000004


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