======================================
| [   50.461948][  T920] 1 lock held by mausezahn/920:
| [ 50.462136][ T920] #0: ffffffff9016f640 (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) 
| [   50.462485][  T920]
| [   50.462485][  T920] stack backtrace:
[   50.462736][  T920] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.462739][  T920] Call Trace:
[   50.462743][  T920]  <TASK>
[ 50.462747][ T920] dump_stack_lvl (lib/dump_stack.c:123) 
[ 50.462764][ T920] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) 
[ 50.462779][ T920] 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) 
[ 50.462791][ T920] __dev_queue_xmit (net/core/dev.h:340 net/core/dev.c:4631) 
[ 50.462796][ T920] ? _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) 
[ 50.462813][ T920] ? __pfx_vlan_parse_protocol (net/8021q/vlan_dev.c:484) 
[ 50.462840][ T920] ? __pfx___dev_queue_xmit (net/core/dev.c:4538) 
[ 50.462845][ T920] ? packet_parse_headers (./include/linux/skbuff.h:3108 net/packet/af_packet.c:1992) 
[ 50.462858][ T920] ? __pfx_sock_alloc_send_pskb (net/core/sock.c:2922) 
[ 50.462867][ T920] ? __pfx_packet_parse_headers (net/packet/af_packet.c:1977) 
[ 50.462873][ T920] ? skb_copy_datagram_from_iter (net/core/datagram.c:564) 
[ 50.462882][ T920] ? dev_get_by_index (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/dev.c:982) 
[ 50.462893][ T920] packet_snd (net/packet/af_packet.c:3131) 
[ 50.462907][ T920] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 50.462910][ T920] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) 
[ 50.462920][ T920] ? __pfx_packet_snd (net/packet/af_packet.c:2995) 
[ 50.462922][ T920] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 50.462926][ T920] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) 
[ 50.462933][ T920] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 50.462939][ T920] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) 
[ 50.462951][ T920] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2177) 
[ 50.462959][ T920] ? __pfx___sys_sendto (net/socket.c:2144) 
[ 50.462976][ T920] ? sock_ioctl (net/socket.c:1311) 
[ 50.462986][ T920] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 50.462992][ T920] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 50.463004][ T920] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 50.463012][ T920] __x64_sys_sendto (net/socket.c:2180) 
[ 50.463017][ T920] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 50.463022][ T920] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 50.463033][ T920] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.463041][  T920] RIP: 0033:0x7f207775ca4a
[ 50.463049][ T920] 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
[   50.463052][  T920] RSP: 002b:00007ffdd75922e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   50.463056][  T920] RAX: ffffffffffffffda RBX: 00000000338579d0 RCX: 00007f207775ca4a
[   50.463058][  T920] RDX: 0000000000000086 RSI: 0000000033857ce2 RDI: 0000000000000005
[   50.463060][  T920] RBP: 0000000033857ce2 R08: 00007ffdd75922f0 R09: 0000000000000014
[   50.463062][  T920] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   50.463064][  T920] R13: 0000000000000086 R14: 00007ffdd75922f0 R15: 0000000000000000
| [   72.289409][ T1121] ==================================================================
| [ 72.289772][ T1121] 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) 
| [   72.290109][ T1121] Read of size 4 at addr 0000000000000068 by task ip/1121
| [   72.290390][ T1121]
[   72.290525][ T1121] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   72.290529][ T1121] Call Trace:
[   72.290532][ T1121]  <TASK>
[ 72.290535][ T1121] dump_stack_lvl (lib/dump_stack.c:123) 
[ 72.290548][ T1121] kasan_report (mm/kasan/report.c:636) 
[ 72.290562][ T1121] ? 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) 
[ 72.290574][ T1121] kasan_check_range (mm/kasan/generic.c:183 mm/kasan/generic.c:189) 
[ 72.290581][ T1121] 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) 
[ 72.290593][ T1121] ? __pfx_nexthop_create_group (net/ipv4/nexthop.c:2686) 
[ 72.290600][ T1121] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 72.290611][ T1121] rtm_new_nexthop (net/ipv4/nexthop.c:2937 net/ipv4/nexthop.c:3254) 
[ 72.290615][ T1121] ? 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) 
[ 72.290621][ T1121] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 72.290626][ T1121] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 72.290638][ T1121] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[ 72.290646][ T1121] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 72.290649][ T1121] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[ 72.290653][ T1121] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 72.290657][ T1121] ? 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) 
[ 72.290660][ T1121] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 72.290665][ T1121] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 72.290669][ T1121] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 72.290675][ T1121] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 72.290679][ T1121] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 72.290687][ T1121] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 72.290691][ T1121] ? 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) 
[ 72.290694][ T1121] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 72.290699][ T1121] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 72.290702][ T1121] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 72.290707][ T1121] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 72.290712][ T1121] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 72.290719][ T1121] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) 
[ 72.290725][ T1121] ? __pfx_____sys_sendmsg (net/socket.c:2509) 
[ 72.290728][ T1121] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) 
[ 72.290738][ T1121] ___sys_sendmsg (net/socket.c:2619) 
[ 72.290741][ T1121] ? 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) 
[ 72.290745][ T1121] ? __pfx____sys_sendmsg (net/socket.c:2606) 
[ 72.290750][ T1121] ? usage_skip (kernel/locking/lockdep.c:2316 kernel/locking/lockdep.c:2284) 
[ 72.290755][ T1121] ? 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) 
[ 72.290762][ T1121] ? 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) 
[ 72.290767][ T1121] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 72.290771][ T1121] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 72.290774][ T1121] __sys_sendmsg (net/socket.c:2649) 
[ 72.290778][ T1121] ? __pfx___sys_sendmsg (net/socket.c:2634) 
[ 72.290784][ T1121] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 72.290789][ T1121] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 72.290795][ T1121] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   72.290802][ T1121] RIP: 0033:0x7f7a396379a7
[ 72.290807][ T1121] 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)
[   72.290810][ T1121] RSP: 002b:00007ffecf0cb078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   72.290815][ T1121] RAX: ffffffffffffffda RBX: 00007ffecf0cbbe8 RCX: 00007f7a396379a7
[   72.290817][ T1121] RDX: 0000000000000000 RSI: 00007ffecf0cb0e0 RDI: 0000000000000005
[   72.290819][ T1121] RBP: 00007ffecf0cb5a0 R08: 0000000000000000 R09: 0000000000000000
[   72.290820][ T1121] R10: 00007f7a394f0708 R11: 0000000000000246 R12: 00007ffecf0cd9d7
[   72.290822][ T1121] R13: 0000000067da7320 R14: 0000000000498600 R15: 000000000cf7a910
| [   72.304655][ T1121] Disabling lock debugging due to kernel taint
| [   72.304948][ T1121] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [   72.305469][ T1121] KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
| [   72.306161][ T1121] Tainted: [B]=BAD_PAGE
[   72.306327][ T1121] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 72.306611][ T1121] 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) 
[ 72.306900][ T1121] 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
[   72.307652][ T1121] RSP: 0018:ffffc90000b073c8 EFLAGS: 00010202
[   72.307925][ T1121] RAX: 000000000000000d RBX: ffff88800be30e68 RCX: ffffffff8c05e00a
[   72.308259][ T1121] RDX: fffffbfff2385891 RSI: 0000000000000008 RDI: ffffffff91c2c480
[   72.308582][ T1121] RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff2385890
[   72.308906][ T1121] R10: ffffffff91c2c487 R11: 205d313231315420 R12: dffffc0000000000
[   72.309229][ T1121] R13: ffff88800e09d840 R14: 0000000000000000 R15: 0000000000000068
[   72.309559][ T1121] FS:  00007f7a3942b800(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[   72.309947][ T1121] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   72.310229][ T1121] CR2: 00007f7a39687423 CR3: 0000000004f22006 CR4: 0000000000772ef0
[   72.310558][ T1121] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   72.310891][ T1121] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   72.311214][ T1121] PKRU: 55555554
[   72.311378][ T1121] Call Trace:
[   72.311543][ T1121]  <TASK>
[ 72.311658][ T1121] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) 
[ 72.311832][ T1121] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) 
[ 72.312058][ T1121] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) 
[ 72.312278][ T1121] ? add_taint (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 kernel/panic.c:605) 
[ 72.312456][ T1121] ? 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) 
[ 72.312672][ T1121] ? 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) 
[ 72.312900][ T1121] ? __pfx_nexthop_create_group (net/ipv4/nexthop.c:2686) 
[ 72.313116][ T1121] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 72.313337][ T1121] rtm_new_nexthop (net/ipv4/nexthop.c:2937 net/ipv4/nexthop.c:3254) 
[ 72.313558][ T1121] ? 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) 
[ 72.313778][ T1121] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 72.313952][ T1121] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 72.314184][ T1121] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[ 72.314401][ T1121] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 72.314611][ T1121] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[ 72.314826][ T1121] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 72.315041][ T1121] ? 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) 
[ 72.315254][ T1121] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 72.315434][ T1121] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 72.315656][ T1121] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 72.315883][ T1121] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 72.316103][ T1121] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 72.316328][ T1121] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 72.316542][ T1121] ? 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) 
[ 72.316756][ T1121] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 72.316977][ T1121] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 72.317188][ T1121] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 72.317405][ T1121] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 72.317620][ T1121] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 72.317839][ T1121] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) 
[ 72.318055][ T1121] ? __pfx_____sys_sendmsg (net/socket.c:2509) 
[ 72.318267][ T1121] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) 
[ 72.318544][ T1121] ___sys_sendmsg (net/socket.c:2619) 
[ 72.318755][ T1121] ? 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) 
[ 72.318970][ T1121] ? __pfx____sys_sendmsg (net/socket.c:2606) 
[ 72.319187][ T1121] ? usage_skip (kernel/locking/lockdep.c:2316 kernel/locking/lockdep.c:2284) 
[ 72.319405][ T1121] ? 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) 
[ 72.319623][ T1121] ? 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) 
[ 72.319841][ T1121] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 72.320062][ T1121] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 72.320277][ T1121] __sys_sendmsg (net/socket.c:2649) 
[ 72.320490][ T1121] ? __pfx___sys_sendmsg (net/socket.c:2634) 
[ 72.320707][ T1121] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 72.320924][ T1121] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 72.321140][ T1121] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   72.321409][ T1121] RIP: 0033:0x7f7a396379a7
[ 72.321636][ T1121] 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)
[   72.322408][ T1121] RSP: 002b:00007ffecf0cb078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   72.322742][ T1121] RAX: ffffffffffffffda RBX: 00007ffecf0cbbe8 RCX: 00007f7a396379a7
[   72.323069][ T1121] RDX: 0000000000000000 RSI: 00007ffecf0cb0e0 RDI: 0000000000000005
[   72.323390][ T1121] RBP: 00007ffecf0cb5a0 R08: 0000000000000000 R09: 0000000000000000
[   72.323709][ T1121] R10: 00007f7a394f0708 R11: 0000000000000246 R12: 00007ffecf0cd9d7


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