======================================
| [  100.444958][ T1271] ==================================================================
| [ 100.445225][ T1271] 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) 
| [  100.445458][ T1271] Read of size 4 at addr 0000000000000068 by task ip/1271
| [  100.445646][ T1271]
[  100.445729][ T1271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  100.445732][ T1271] Call Trace:
[  100.445733][ T1271]  <TASK>
[ 100.445735][ T1271] dump_stack_lvl (lib/dump_stack.c:123) 
[ 100.445742][ T1271] kasan_report (mm/kasan/report.c:636) 
[ 100.445747][ T1271] ? 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) 
[ 100.445752][ T1271] kasan_check_range (mm/kasan/generic.c:183 mm/kasan/generic.c:189) 
[ 100.445757][ T1271] 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) 
[ 100.445762][ T1271] ? __pfx_nexthop_create_group (net/ipv4/nexthop.c:2686) 
[ 100.445766][ T1271] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 100.445773][ T1271] rtm_new_nexthop (net/ipv4/nexthop.c:2937 net/ipv4/nexthop.c:3254) 
[ 100.445777][ T1271] ? 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) 
[ 100.445781][ T1271] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 100.445785][ T1271] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 100.445798][ T1271] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[ 100.445804][ T1271] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 100.445808][ T1271] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[ 100.445813][ T1271] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 100.445817][ T1271] ? 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) 
[ 100.445819][ T1271] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 100.445824][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 100.445828][ T1271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 100.445832][ T1271] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 100.445836][ T1271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 100.445844][ T1271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 100.445847][ T1271] ? 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) 
[ 100.445850][ T1271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 100.445854][ T1271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 100.445857][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.445862][ T1271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 100.445866][ T1271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 100.445872][ T1271] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) 
[ 100.445878][ T1271] ? __pfx_____sys_sendmsg (net/socket.c:2509) 
[ 100.445881][ T1271] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) 
[ 100.445888][ T1271] ___sys_sendmsg (net/socket.c:2619) 
[ 100.445890][ T1271] ? 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) 
[ 100.445894][ T1271] ? __pfx____sys_sendmsg (net/socket.c:2606) 
[ 100.445898][ T1271] ? hlock_class (kernel/locking/lockdep.c:225) 
[ 100.445902][ T1271] ? 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) 
[ 100.445907][ T1271] ? 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) 
[ 100.445911][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.445914][ T1271] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 100.445919][ T1271] __sys_sendmsg (net/socket.c:2649) 
[ 100.445922][ T1271] ? __pfx___sys_sendmsg (net/socket.c:2634) 
[ 100.445927][ T1271] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 100.445931][ T1271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.445936][ T1271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.445941][ T1271] RIP: 0033:0x7f80429179a7
[ 100.445945][ T1271] 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)
[  100.445948][ T1271] RSP: 002b:00007ffc29365e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.445951][ T1271] RAX: ffffffffffffffda RBX: 00007ffc293669d0 RCX: 00007f80429179a7
[  100.445953][ T1271] RDX: 0000000000000000 RSI: 00007ffc29365ee0 RDI: 0000000000000005
[  100.445955][ T1271] RBP: 00007ffc293663a0 R08: 0000000030108910 R09: 0000000000000000
[  100.445957][ T1271] R10: 00007f80427d0708 R11: 0000000000000246 R12: 0000000030108918
[  100.445958][ T1271] R13: 0000000067da6649 R14: 0000000000498600 R15: 0000000030108910
| [  100.455042][ T1271] Disabling lock debugging due to kernel taint
| [  100.455241][ T1271] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [  100.455592][ T1271] KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
| [  100.456049][ T1271] Tainted: [B]=BAD_PAGE
[  100.456157][ T1271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.456336][ T1271] 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) 
[ 100.456526][ T1271] 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 84 19 2f 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 84 19 2f fe       	call   0xfffffffffe2f19a7
  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
[  100.457025][ T1271] RSP: 0018:ffffc90001da73c8 EFLAGS: 00010202
[  100.457207][ T1271] RAX: 000000000000000d RBX: ffff888007c1ede8 RCX: ffffffff9b453d8a
[  100.457424][ T1271] RDX: fffffbfff40e2491 RSI: 0000000000000008 RDI: ffffffffa0712480
[  100.457636][ T1271] RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff40e2490
[  100.457847][ T1271] R10: ffffffffa0712487 R11: 205d313732315420 R12: dffffc0000000000
[  100.458062][ T1271] R13: ffff888004e624c0 R14: 0000000000000000 R15: 0000000000000068
[  100.458277][ T1271] FS:  00007f804270b800(0000) GS:ffff88802f200000(0000) knlGS:0000000000000000
[  100.458521][ T1271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.458698][ T1271] CR2: 00007f8042967423 CR3: 000000000bb82006 CR4: 0000000000772ef0
[  100.458912][ T1271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.459126][ T1271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.459332][ T1271] PKRU: 55555554
[  100.459442][ T1271] Call Trace:
[  100.459549][ T1271]  <TASK>
[ 100.459622][ T1271] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) 
[ 100.459735][ T1271] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) 
[ 100.459884][ T1271] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) 
[ 100.460037][ T1271] ? add_taint (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 kernel/panic.c:605) 
[ 100.460152][ T1271] ? 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) 
[ 100.460296][ T1271] ? 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) 
[ 100.460443][ T1271] ? __pfx_nexthop_create_group (net/ipv4/nexthop.c:2686) 
[ 100.460584][ T1271] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 100.460727][ T1271] rtm_new_nexthop (net/ipv4/nexthop.c:2937 net/ipv4/nexthop.c:3254) 
[ 100.460871][ T1271] ? 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) 
[ 100.461018][ T1271] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 100.461132][ T1271] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 100.461284][ T1271] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6952) 
[ 100.461426][ T1271] ? __pfx_rtm_new_nexthop (net/ipv4/nexthop.c:3225) 
[ 100.461567][ T1271] rtnetlink_rcv_msg (net/core/rtnetlink.c:6954) 
[ 100.461707][ T1271] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 100.461852][ T1271] ? 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) 
[ 100.461998][ T1271] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 100.462110][ T1271] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 100.462251][ T1271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 100.462395][ T1271] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6857) 
[ 100.462538][ T1271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 100.462684][ T1271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 100.462824][ T1271] ? 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) 
[ 100.462969][ T1271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 100.463120][ T1271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 100.463263][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.463401][ T1271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 100.463546][ T1271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 100.463685][ T1271] ____sys_sendmsg (net/socket.c:709 net/socket.c:724 net/socket.c:2563) 
[ 100.463832][ T1271] ? __pfx_____sys_sendmsg (net/socket.c:2509) 
[ 100.463975][ T1271] ? __pfx_copy_msghdr_from_user (net/socket.c:2489) 
[ 100.464159][ T1271] ___sys_sendmsg (net/socket.c:2619) 
[ 100.464297][ T1271] ? 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) 
[ 100.464442][ T1271] ? __pfx____sys_sendmsg (net/socket.c:2606) 
[ 100.464587][ T1271] ? hlock_class (kernel/locking/lockdep.c:225) 
[ 100.464733][ T1271] ? 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) 
[ 100.464876][ T1271] ? 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) 
[ 100.465019][ T1271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.465181][ T1271] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 100.465325][ T1271] __sys_sendmsg (net/socket.c:2649) 
[ 100.465468][ T1271] ? __pfx___sys_sendmsg (net/socket.c:2634) 
[ 100.465613][ T1271] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 100.465762][ T1271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.465907][ T1271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.466084][ T1271] RIP: 0033:0x7f80429179a7
[ 100.466217][ T1271] 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)
[  100.466681][ T1271] RSP: 002b:00007ffc29365e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.466896][ T1271] RAX: ffffffffffffffda RBX: 00007ffc293669d0 RCX: 00007f80429179a7
[  100.467114][ T1271] RDX: 0000000000000000 RSI: 00007ffc29365ee0 RDI: 0000000000000005
[  100.467329][ T1271] RBP: 00007ffc293663a0 R08: 0000000030108910 R09: 0000000000000000
[  100.467541][ T1271] R10: 00007f80427d0708 R11: 0000000000000246 R12: 0000000030108918


Finger prints:
nexthop_create_group:rtm_new_nexthop:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast
kasan_report:kasan_check_range:nexthop_create_group:rtm_new_nexthop:rtnetlink_rcv_msg