======================================
| [  347.538392][ T1776] 1 lock held by ip/1776:
| [ 347.538523][ T1776] #0: ffffffff8efbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  347.538852][ T1776]
| [  347.538852][ T1776] stack backtrace:
[  347.539358][ T1776] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  347.539791][ T1776] Call Trace:
[  347.539949][ T1776]  <TASK>
[ 347.540047][ T1776] dump_stack_lvl (lib/dump_stack.c:122) 
[ 347.540240][ T1776] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 347.540424][ T1776] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 347.540738][ T1776] 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
[ 347.541013][ T1776] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 347.541231][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.541470][ T1776] br_add_if (net/bridge/br_if.c:692) bridge
[ 347.541686][ T1776] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 347.541877][ T1776] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 347.542108][ T1776] do_setlink (net/core/rtnetlink.c:2907) 
[ 347.542300][ T1776] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 347.542489][ T1776] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 347.542676][ T1776] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 347.542864][ T1776] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 347.543050][ T1776] ? __kernel_text_address (kernel/extable.c:79) 
[ 347.543252][ T1776] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 347.543434][ T1776] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 347.543693][ T1776] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 347.543900][ T1776] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 347.544128][ T1776] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 347.544322][ T1776] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 347.544542][ T1776] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 347.544699][ T1776] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 347.544931][ T1776] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 347.545154][ T1776] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 347.545347][ T1776] ? 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) 
[ 347.545572][ T1776] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 347.545801][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.546064][ T1776] ? __create_object (mm/kmemleak.c:751) 
[ 347.546291][ T1776] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 347.546513][ T1776] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 347.546661][ T1776] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 347.546876][ T1776] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 347.547058][ T1776] ? 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) 
[ 347.547263][ T1776] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 347.547407][ T1776] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 347.547628][ T1776] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 347.547844][ T1776] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 347.548060][ T1776] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 347.548296][ T1776] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 347.548530][ T1776] ? 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) 
[ 347.548753][ T1776] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 347.548971][ T1776] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 347.549171][ T1776] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 347.549376][ T1776] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 347.549596][ T1776] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 347.549776][ T1776] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 347.549991][ T1776] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 347.550181][ T1776] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 347.550378][ T1776] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 347.550554][ T1776] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 347.550777][ T1776] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 347.550985][ T1776] ___sys_sendmsg (net/socket.c:2653) 
[ 347.551189][ T1776] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 347.551371][ T1776] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 347.551571][ T1776] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 347.551739][ T1776] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 347.551976][ T1776] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 347.552150][ T1776] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 347.552354][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.552576][ T1776] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 347.552784][ T1776] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 347.552988][ T1776] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 347.553190][ T1776] ? __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) 
[ 347.553414][ T1776] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 347.553617][ T1776] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  347.553847][ T1776] RIP: 0033:0x7fd753e147b7
[ 347.554046][ T1776] 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)
[  347.554773][ T1776] RSP: 002b:00007ffdc82a4158 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  347.555059][ T1776] RAX: ffffffffffffffda RBX: 00007ffdc82a4880 RCX: 00007fd753e147b7
[  347.555329][ T1776] RDX: 0000000000000000 RSI: 00007ffdc82a41c0 RDI: 0000000000000005
[  347.555603][ T1776] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  347.555889][ T1776] R10: 0000000018b60910 R11: 0000000000000246 R12: 0000000000000004
[  347.556183][ T1776] R13: 0000000066be9dee R14: 0000000000496600 R15: 0000000000000000
| [  347.558651][ T1776] 1 lock held by ip/1776:
| [ 347.558827][ T1776] #0: ffffffff8efbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  347.559166][ T1776]
| [  347.559166][ T1776] stack backtrace:
[  347.559695][ T1776] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  347.560117][ T1776] Call Trace:
[  347.560260][ T1776]  <TASK>
[ 347.560365][ T1776] dump_stack_lvl (lib/dump_stack.c:122) 
[ 347.560563][ T1776] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 347.560767][ T1776] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 347.561070][ T1776] 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
[ 347.561351][ T1776] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 347.561584][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.561819][ T1776] br_add_if (net/bridge/br_if.c:692) bridge
[ 347.562040][ T1776] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 347.562267][ T1776] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 347.562504][ T1776] do_setlink (net/core/rtnetlink.c:2907) 
[ 347.562689][ T1776] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 347.562882][ T1776] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 347.563059][ T1776] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 347.563259][ T1776] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 347.563434][ T1776] ? __kernel_text_address (kernel/extable.c:79) 
[ 347.563614][ T1776] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 347.563802][ T1776] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 347.564033][ T1776] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 347.564228][ T1776] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 347.564405][ T1776] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 347.564574][ T1776] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 347.564764][ T1776] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 347.564909][ T1776] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 347.565104][ T1776] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 347.565292][ T1776] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 347.565481][ T1776] ? 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) 
[ 347.565670][ T1776] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 347.565857][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.566083][ T1776] ? __create_object (mm/kmemleak.c:751) 
[ 347.566269][ T1776] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 347.566459][ T1776] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 347.566605][ T1776] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 347.566788][ T1776] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 347.566977][ T1776] ? 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) 
[ 347.567160][ T1776] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 347.567305][ T1776] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 347.567490][ T1776] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 347.567670][ T1776] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 347.567851][ T1776] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 347.568051][ T1776] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 347.568251][ T1776] ? 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) 
[ 347.568436][ T1776] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 347.568620][ T1776] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 347.568803][ T1776] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 347.568988][ T1776] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 347.569186][ T1776] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 347.569366][ T1776] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 347.569551][ T1776] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 347.569746][ T1776] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 347.569939][ T1776] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 347.570126][ T1776] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 347.570352][ T1776] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 347.570547][ T1776] ___sys_sendmsg (net/socket.c:2653) 
[ 347.570732][ T1776] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 347.570913][ T1776] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 347.571099][ T1776] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 347.571284][ T1776] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 347.571509][ T1776] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 347.571693][ T1776] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 347.571883][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.572109][ T1776] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 347.572297][ T1776] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 347.572478][ T1776] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 347.572665][ T1776] ? __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) 
[ 347.572873][ T1776] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 347.573057][ T1776] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  347.573292][ T1776] RIP: 0033:0x7fd753e147b7
[ 347.573483][ T1776] 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)
[  347.574128][ T1776] RSP: 002b:00007ffdc82a4158 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  347.574576][ T1776] RAX: ffffffffffffffda RBX: 00007ffdc82a4880 RCX: 00007fd753e147b7
[  347.574850][ T1776] RDX: 0000000000000000 RSI: 00007ffdc82a41c0 RDI: 0000000000000005
[  347.575119][ T1776] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  347.575473][ T1776] R10: 0000000018b60910 R11: 0000000000000246 R12: 0000000000000004
[  347.575749][ T1776] R13: 0000000066be9dee R14: 0000000000496600 R15: 0000000000000000
| [  347.578091][ T1776] 1 lock held by ip/1776:
| [ 347.578222][ T1776] #0: ffffffff8efbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  347.578528][ T1776]
| [  347.578528][ T1776] stack backtrace:
[  347.578994][ T1776] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  347.579463][ T1776] Call Trace:
[  347.579599][ T1776]  <TASK>
[ 347.579692][ T1776] dump_stack_lvl (lib/dump_stack.c:122) 
[ 347.579871][ T1776] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 347.580047][ T1776] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 347.580393][ T1776] 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
[ 347.580639][ T1776] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 347.580841][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.581050][ T1776] br_add_if (net/bridge/br_if.c:692) bridge
[ 347.581357][ T1776] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 347.581527][ T1776] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 347.581754][ T1776] do_setlink (net/core/rtnetlink.c:2907) 
[ 347.581925][ T1776] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 347.582201][ T1776] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 347.582393][ T1776] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 347.582562][ T1776] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 347.582733][ T1776] ? __kernel_text_address (kernel/extable.c:79) 
[ 347.583028][ T1776] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 347.583204][ T1776] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 347.583423][ T1776] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 347.583615][ T1776] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 347.583792][ T1776] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 347.583960][ T1776] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 347.584129][ T1776] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 347.584260][ T1776] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 347.584435][ T1776] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 347.584612][ T1776] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 347.584802][ T1776] ? 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) 
[ 347.585002][ T1776] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 347.585194][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.585508][ T1776] ? __create_object (mm/kmemleak.c:751) 
[ 347.585682][ T1776] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 347.585858][ T1776] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 347.585990][ T1776] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 347.586275][ T1776] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 347.586447][ T1776] ? 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) 
[ 347.586632][ T1776] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 347.586767][ T1776] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 347.587041][ T1776] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 347.587219][ T1776] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 347.587390][ T1776] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 347.587588][ T1776] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 347.587761][ T1776] ? 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) 
[ 347.588064][ T1776] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 347.588255][ T1776] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 347.588435][ T1776] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 347.588614][ T1776] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 347.588789][ T1776] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 347.588956][ T1776] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 347.589131][ T1776] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 347.589313][ T1776] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 347.589487][ T1776] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 347.589659][ T1776] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 347.589869][ T1776] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 347.590063][ T1776] ___sys_sendmsg (net/socket.c:2653) 
[ 347.590340][ T1776] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 347.590509][ T1776] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 347.590692][ T1776] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 347.590857][ T1776] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 347.591161][ T1776] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 347.591338][ T1776] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 347.591514][ T1776] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 347.591723][ T1776] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 347.592015][ T1776] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 347.592186][ T1776] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 347.592351][ T1776] ? __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) 
[ 347.592539][ T1776] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 347.592713][ T1776] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  347.592926][ T1776] RIP: 0033:0x7fd753e147b7
[ 347.593122][ T1776] 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)
[  347.593807][ T1776] RSP: 002b:00007ffdc82a4158 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  347.594063][ T1776] RAX: ffffffffffffffda RBX: 00007ffdc82a4880 RCX: 00007fd753e147b7
[  347.594420][ T1776] RDX: 0000000000000000 RSI: 00007ffdc82a41c0 RDI: 0000000000000005
[  347.594678][ T1776] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  347.594926][ T1776] R10: 0000000018b60910 R11: 0000000000000246 R12: 0000000000000004


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