======================================
| [ 1953.889142][ T7910] 1 lock held by mausezahn/7910:
| [ 1953.889305][ T7910] #0: ffffffff9556f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:901 net/core/dev.c:4555) 
| [ 1953.889634][ T7910]
| [ 1953.889634][ T7910] stack backtrace:
[ 1953.889838][ T7910] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1953.889840][ T7910] Call Trace:
[ 1953.889842][ T7910]  <TASK>
[ 1953.889844][ T7910] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1953.889852][ T7910] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[ 1953.889863][ T7910] dev_hard_start_xmit (./include/net/net_namespace.h:418 ./include/linux/netdevice.h:2695 net/core/dev.c:2466 net/core/dev.c:3772 net/core/dev.c:3793) 
[ 1953.889875][ T7910] __dev_queue_xmit (net/core/dev.h:340 net/core/dev.c:4631) 
[ 1953.889879][ T7910] ? _copy_from_iter (./arch/x86/include/asm/uaccess_64.h:126 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:55 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:300 ./include/linux/iov_iter.h:328 lib/iov_iter.c:249 lib/iov_iter.c:260) 
[ 1953.889890][ T7910] ? __pfx_vlan_parse_protocol (net/8021q/vlan_dev.c:484) 
[ 1953.889902][ T7910] ? __pfx___dev_queue_xmit (net/core/dev.c:4538) 
[ 1953.889906][ T7910] ? packet_parse_headers (./include/linux/skbuff.h:3108 net/packet/af_packet.c:1992) 
[ 1953.889916][ T7910] ? __pfx_sock_alloc_send_pskb (net/core/sock.c:2922) 
[ 1953.889923][ T7910] ? __pfx_packet_parse_headers (net/packet/af_packet.c:1977) 
[ 1953.889928][ T7910] ? skb_copy_datagram_from_iter (net/core/datagram.c:564) 
[ 1953.889934][ T7910] ? dev_get_by_index (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/dev.c:982) 
[ 1953.889945][ T7910] packet_snd (net/packet/af_packet.c:3131) 
[ 1953.889957][ T7910] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 1953.889959][ T7910] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) 
[ 1953.889966][ T7910] ? __pfx_packet_snd (net/packet/af_packet.c:2995) 
[ 1953.889968][ T7910] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 1953.889971][ T7910] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) 
[ 1953.889978][ T7910] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 1953.889984][ T7910] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) 
[ 1953.889995][ T7910] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2177) 
[ 1953.890002][ T7910] ? __pfx___sys_sendto (net/socket.c:2144) 
[ 1953.890018][ T7910] ? sock_ioctl (net/socket.c:1311) 
[ 1953.890027][ T7910] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 1953.890033][ T7910] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 1953.890043][ T7910] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 1953.890051][ T7910] __x64_sys_sendto (net/socket.c:2180) 
[ 1953.890055][ T7910] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 1953.890059][ T7910] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1953.890067][ T7910] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1953.890071][ T7910] RIP: 0033:0x7f27b2323a4a
[ 1953.890076][ T7910] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[ 1953.890078][ T7910] RSP: 002b:00007fff7fbc1528 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 1953.890085][ T7910] RAX: ffffffffffffffda RBX: 00000000293329d0 RCX: 00007f27b2323a4a
[ 1953.890087][ T7910] RDX: 0000000000000086 RSI: 0000000029332ce2 RDI: 0000000000000005
[ 1953.890089][ T7910] RBP: 0000000029332ce2 R08: 00007fff7fbc1530 R09: 0000000000000014
[ 1953.890091][ T7910] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 1953.890092][ T7910] R13: 0000000000000086 R14: 00007fff7fbc1530 R15: 0000000000000000
| [ 1972.539873][ T8109] ==================================================================
| [ 1972.540118][ T8109] BUG: KASAN: null-ptr-deref in nexthop_create_group (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 ./include/linux/refcount.h:142 ./include/linux/refcount.h:218 ./include/linux/refcount.h:236 ./include/net/nexthop.h:264 net/ipv4/nexthop.c:2721) 
| [ 1972.540327][ T8109] Read of size 4 at addr 0000000000000068 by task ip/8109
| [ 1972.540493][ T8109]
[ 1972.540567][ T8109] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1972.540569][ T8109] Call Trace:
[ 1972.540571][ T8109]  <TASK>
[ 1972.540572][ T8109] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1972.540579][ T8109] kasan_report (mm/kasan/report.c:636) 
[ 1972.540586][ T8109] ? nexthop_create_group (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 ./include/linux/refcount.h:142 ./include/linux/refcount.h:218 ./include/linux/refcount.h:236 ./include/net/nexthop.h:264 net/ipv4/nexthop.c:2721) 
[ 1972.540593][ T8109] kasan_check_range (mm/kasan/generic.c:183 mm/kasan/generic.c:189) 
[ 1972.540596][ T8109] nexthop_create_group (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 ./include/linux/refcount.h:142 ./include/linux/refcount.h:218 ./include/linux/refcount.h:236 ./include/net/nexthop.h:264 net/ipv4/nexthop.c:2721) 
[ 1972.540603][ T8109] ? __pfx_nexthop_create_group (net/ipv4/nexthop.c:2686) 
[ 1972.540607][ T8109] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 1972.540614][ T8109] rtm_new_nexthop (net/ipv4/nexthop.c:2937 net/ipv4/nexthop.c:3254) 
[ 1972.540617][ T8109] ? 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:230) 
[ 1972.540622][ T8109] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 1972.540626][ T8109] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 1972.540639][ T8109] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[ 1972.540645][ T8109] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 1972.540647][ T8109] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[ 1972.540651][ T8109] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 1972.540655][ T8109] ? 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:230) 
[ 1972.540658][ T8109] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 1972.540663][ T8109] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 1972.540666][ T8109] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 1972.540671][ T8109] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 1972.540675][ T8109] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 1972.540683][ T8109] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 1972.540686][ T8109] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 1972.540690][ T8109] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 1972.540694][ T8109] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 1972.540697][ T8109] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 1972.540702][ T8109] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 1972.540707][ T8109] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 1972.540714][ T8109] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) 
[ 1972.540719][ T8109] ? __pfx_____sys_sendmsg (net/socket.c:2509) 
[ 1972.540721][ T8109] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) 
[ 1972.540730][ T8109] ___sys_sendmsg (net/socket.c:2619) 
[ 1972.540733][ T8109] ? 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:230) 
[ 1972.540736][ T8109] ? __pfx____sys_sendmsg (net/socket.c:2606) 
[ 1972.540742][ T8109] ? usage_skip (kernel/locking/lockdep.c:2316 kernel/locking/lockdep.c:2284) 
[ 1972.540747][ T8109] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[ 1972.540751][ T8109] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[ 1972.540757][ T8109] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 1972.540760][ T8109] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 1972.540764][ T8109] __sys_sendmsg (net/socket.c:2649) 
[ 1972.540768][ T8109] ? __pfx___sys_sendmsg (net/socket.c:2634) 
[ 1972.540774][ T8109] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 1972.540779][ T8109] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1972.540783][ T8109] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1972.540788][ T8109] RIP: 0033:0x7f27d00359a7
[ 1972.540791][ T8109] 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)
[ 1972.540794][ T8109] RSP: 002b:00007ffdd90dd8d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 1972.540799][ T8109] RAX: ffffffffffffffda RBX: 00007ffdd90de448 RCX: 00007f27d00359a7
[ 1972.540802][ T8109] RDX: 0000000000000000 RSI: 00007ffdd90dd940 RDI: 0000000000000005
[ 1972.540804][ T8109] RBP: 00007ffdd90dde00 R08: 0000000000000000 R09: 0000000000000000
[ 1972.540806][ T8109] R10: 00007f27cfeee708 R11: 0000000000000246 R12: 00007ffdd90df9d7
[ 1972.540808][ T8109] R13: 0000000067da68cf R14: 0000000000498600 R15: 000000003ba0e910
| [ 1972.549631][ T8109] Disabling lock debugging due to kernel taint
| [ 1972.549852][ T8109] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [ 1972.550176][ T8109] KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
| [ 1972.550603][ T8109] Tainted: [B]=BAD_PAGE
[ 1972.550703][ T8109] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1972.550864][ T8109] RIP: 0010:nexthop_create_group (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 ./include/linux/refcount.h:142 ./include/linux/refcount.h:218 ./include/linux/refcount.h:236 ./include/net/nexthop.h:264 net/ipv4/nexthop.c:2721) 
[ 1972.551036][ T8109] Code: 5c 09 00 00 45 3b 7e 60 72 c0 76 06 49 83 c6 08 eb bc 4d 8d 7e 68 be 04 00 00 00 4c 89 ff e8 c4 a2 27 fe 4c 89 f8 48 c1 e8 03 <42> 0f b6 14 20 4c 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
All code
========
   0:	5c                   	pop    %rsp
   1:	09 00                	or     %eax,(%rax)
   3:	00 45 3b             	add    %al,0x3b(%rbp)
   6:	7e 60                	jle    0x68
   8:	72 c0                	jb     0xffffffffffffffca
   a:	76 06                	jbe    0x12
   c:	49 83 c6 08          	add    $0x8,%r14
  10:	eb bc                	jmp    0xffffffffffffffce
  12:	4d 8d 7e 68          	lea    0x68(%r14),%r15
  16:	be 04 00 00 00       	mov    $0x4,%esi
  1b:	4c 89 ff             	mov    %r15,%rdi
  1e:	e8 c4 a2 27 fe       	call   0xfffffffffe27a2e7
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
  2a:*	42 0f b6 14 20       	movzbl (%rax,%r12,1),%edx		<-- trapping instruction
  2f:	4c 89 f8             	mov    %r15,%rax
  32:	83 e0 07             	and    $0x7,%eax
  35:	83 c0 03             	add    $0x3,%eax
  38:	38 d0                	cmp    %dl,%al
  3a:	7c 08                	jl     0x44
  3c:	84 d2                	test   %dl,%dl
  3e:	0f                   	.byte 0xf
  3f:	85                   	.byte 0x85

Code starting with the faulting instruction
===========================================
   0:	42 0f b6 14 20       	movzbl (%rax,%r12,1),%edx
   5:	4c 89 f8             	mov    %r15,%rax
   8:	83 e0 07             	and    $0x7,%eax
   b:	83 c0 03             	add    $0x3,%eax
   e:	38 d0                	cmp    %dl,%al
  10:	7c 08                	jl     0x1a
  12:	84 d2                	test   %dl,%dl
  14:	0f                   	.byte 0xf
  15:	85                   	.byte 0x85
[ 1972.551496][ T8109] RSP: 0018:ffffc90000b373c8 EFLAGS: 00010202
[ 1972.551663][ T8109] RAX: 000000000000000d RBX: ffff888010d4f868 RCX: ffffffff9145e00a
[ 1972.551869][ T8109] RDX: fffffbfff2e05891 RSI: 0000000000000008 RDI: ffffffff9702c480
[ 1972.552064][ T8109] RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff2e05890
[ 1972.552266][ T8109] R10: ffffffff9702c487 R11: 205d393031385420 R12: dffffc0000000000
[ 1972.552461][ T8109] R13: ffff88800c01adc0 R14: 0000000000000000 R15: 0000000000000068
[ 1972.552655][ T8109] FS:  00007f27cfe29800(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[ 1972.552881][ T8109] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1972.553050][ T8109] CR2: 00007f27d0085423 CR3: 000000000b9ea002 CR4: 0000000000772ef0
[ 1972.553247][ T8109] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1972.553441][ T8109] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1972.553651][ T8109] PKRU: 55555554
[ 1972.553757][ T8109] Call Trace:
[ 1972.553856][ T8109]  <TASK>
[ 1972.553924][ T8109] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) 
[ 1972.554032][ T8109] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) 
[ 1972.554166][ T8109] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) 
[ 1972.554309][ T8109] ? add_taint (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 kernel/panic.c:605) 
[ 1972.554410][ T8109] ? nexthop_create_group (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 ./include/linux/refcount.h:142 ./include/linux/refcount.h:218 ./include/linux/refcount.h:236 ./include/net/nexthop.h:264 net/ipv4/nexthop.c:2721) 
[ 1972.554542][ T8109] ? nexthop_create_group (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 ./include/linux/refcount.h:142 ./include/linux/refcount.h:218 ./include/linux/refcount.h:236 ./include/net/nexthop.h:264 net/ipv4/nexthop.c:2721) 
[ 1972.554674][ T8109] ? __pfx_nexthop_create_group (net/ipv4/nexthop.c:2686) 
[ 1972.554810][ T8109] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 1972.554945][ T8109] rtm_new_nexthop (net/ipv4/nexthop.c:2937 net/ipv4/nexthop.c:3254) 
[ 1972.555076][ T8109] ? 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:230) 
[ 1972.555229][ T8109] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 1972.555332][ T8109] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 1972.555480][ T8109] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[ 1972.555614][ T8109] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 1972.555748][ T8109] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[ 1972.555880][ T8109] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 1972.556008][ T8109] ? 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:230) 
[ 1972.556137][ T8109] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 1972.556239][ T8109] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 1972.556370][ T8109] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 1972.556501][ T8109] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 1972.556632][ T8109] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 1972.556772][ T8109] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 1972.556903][ T8109] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 1972.557033][ T8109] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 1972.557167][ T8109] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 1972.557297][ T8109] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 1972.557428][ T8109] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 1972.557559][ T8109] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 1972.557697][ T8109] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) 
[ 1972.557875][ T8109] ? __pfx_____sys_sendmsg (net/socket.c:2509) 
[ 1972.558005][ T8109] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) 
[ 1972.558170][ T8109] ___sys_sendmsg (net/socket.c:2619) 
[ 1972.558299][ T8109] ? 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:230) 
[ 1972.558429][ T8109] ? __pfx____sys_sendmsg (net/socket.c:2606) 
[ 1972.558561][ T8109] ? usage_skip (kernel/locking/lockdep.c:2316 kernel/locking/lockdep.c:2284) 
[ 1972.558696][ T8109] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[ 1972.558827][ T8109] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[ 1972.558960][ T8109] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 1972.559090][ T8109] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 1972.559220][ T8109] __sys_sendmsg (net/socket.c:2649) 
[ 1972.559351][ T8109] ? __pfx___sys_sendmsg (net/socket.c:2634) 
[ 1972.559484][ T8109] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 1972.559624][ T8109] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1972.559757][ T8109] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1972.559919][ T8109] RIP: 0033:0x7f27d00359a7
[ 1972.560056][ T8109] 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)
[ 1972.560519][ T8109] RSP: 002b:00007ffdd90dd8d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 1972.560717][ T8109] RAX: ffffffffffffffda RBX: 00007ffdd90de448 RCX: 00007f27d00359a7
[ 1972.560915][ T8109] RDX: 0000000000000000 RSI: 00007ffdd90dd940 RDI: 0000000000000005
[ 1972.561111][ T8109] RBP: 00007ffdd90dde00 R08: 0000000000000000 R09: 0000000000000000
[ 1972.561311][ T8109] R10: 00007f27cfeee708 R11: 0000000000000246 R12: 00007ffdd90df9d7


Finger prints:
kasan_report:kasan_check_range:nexthop_create_group:rtm_new_nexthop:rtnetlink_rcv_msg
nexthop_create_group:rtm_new_nexthop:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast
lockdep_rcu_suspicious:dev_hard_start_xmit:__dev_queue_xmit:packet_snd:__sys_sendto