======================================
| [   13.438413][  T241] bond0: (slave eth0): Enslaving as an active interface with an up link
| [   18.337733][  T246] bond0: (slave eth0): Releasing backup interface
| [   18.936647][  T249] Oops: general protection fault, probably for non-canonical address 0xec90dbc4afeef6e0: 0000 [#1] SMP KASAN
| [   18.937066][  T249] KASAN: maybe wild-memory-access in range [0x6486fe257f77b700-0x6486fe257f77b707]
[   18.937659][  T249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.937872][ T249] RIP: 0010:bond_fill_info (drivers/net/bonding/bond_netlink.c:733) 
[ 18.938052][ T249] Code: 5d 08 41 b9 08 00 00 00 48 8d ac 24 ee 00 00 00 45 31 f6 41 29 d9 4d 63 c6 49 83 f8 05 0f 87 98 0f 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 14 20 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85
All code
========
   0:	5d                   	pop    %rbp
   1:	08 41 b9             	or     %al,-0x47(%rcx)
   4:	08 00                	or     %al,(%rax)
   6:	00 00                	add    %al,(%rax)
   8:	48 8d ac 24 ee 00 00 	lea    0xee(%rsp),%rbp
   f:	00 
  10:	45 31 f6             	xor    %r14d,%r14d
  13:	41 29 d9             	sub    %ebx,%r9d
  16:	4d 63 c6             	movslq %r14d,%r8
  19:	49 83 f8 05          	cmp    $0x5,%r8
  1d:	0f 87 98 0f 00 00    	ja     0xfbb
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
  2a:*	42 0f b6 14 20       	movzbl (%rax,%r12,1),%edx		<-- trapping instruction
  2f:	48 89 d8             	mov    %rbx,%rax
  32:	83 e0 07             	and    $0x7,%eax
  35:	83 c0 01             	add    $0x1,%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:	48 89 d8             	mov    %rbx,%rax
   8:	83 e0 07             	and    $0x7,%eax
   b:	83 c0 01             	add    $0x1,%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
[   18.938652][  T249] RSP: 0018:ffffc90000c06f30 EFLAGS: 00010202
[   18.938869][  T249] RAX: 0c90dfc4afeef6e0 RBX: 6486fe257f77b700 RCX: 0000000000000000
[   18.939123][  T249] RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffff888004b92ef0
[   18.939380][  T249] RBP: ffffc90000c0701e R08: 0000000000000000 R09: 0000000080884908
[   18.939634][  T249] R10: 0000000000000000 R11: ffffffff9c56ff00 R12: dffffc0000000000
[   18.939885][  T249] R13: ffff888004b92ee8 R14: 0000000000000000 R15: 0000000000000000
[   18.940139][  T249] FS:  00007fc3c1d8d800(0000) GS:ffff888092bac000(0000) knlGS:0000000000000000
[   18.940432][  T249] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.940645][  T249] CR2: 00000000004e5840 CR3: 0000000004f79003 CR4: 0000000000772ef0
[   18.940903][  T249] PKRU: 55555554
[   18.941030][  T249] Call Trace:
[   18.941158][  T249]  <TASK>
[ 18.941247][ T249] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 18.941419][ T249] ? bond_slave_changelink (drivers/net/bonding/bond_netlink.c:677) 
[ 18.941590][ T249] ? rtnl_xdp_prog_skb (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:1696) 
[ 18.941758][ T249] ? __lock_release (kernel/locking/lockdep.c:5536) 
[ 18.941928][ T249] ? nla_put (lib/nlattr.c:1100) 
[ 18.942057][ T249] ? rtnl_xdp_fill (net/core/rtnetlink.c:1762) 
[ 18.942227][ T249] ? nla_put (lib/nlattr.c:1100) 
[ 18.942355][ T249] rtnl_link_fill (net/core/rtnetlink.c:901 net/core/rtnetlink.c:921) 
[ 18.942529][ T249] rtnl_fill_ifinfo.constprop.0 (net/core/rtnetlink.c:2139) 
[ 18.942741][ T249] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.942911][ T249] ? rtnl_fill_vf (net/core/rtnetlink.c:2021) 
[ 18.943081][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 18.943254][ T249] ? mark_held_locks (kernel/locking/lockdep.c:4325) 
[ 18.943423][ T249] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.943636][ T249] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) 
[ 18.943806][ T249] rtnl_getlink (net/core/rtnetlink.c:4187) 
[ 18.943977][ T249] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:4128) 
[ 18.944157][ T249] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760) 
[ 18.944327][ T249] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6961) 
[ 18.944497][ T249] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 18.944669][ T249] rtnetlink_rcv_msg (net/core/rtnetlink.c:6963) 
[ 18.944834][ T249] ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876) 
[ 18.945003][ T249] ? rtnl_port_fill (net/core/rtnetlink.c:6857) 
[ 18.945173][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 18.945343][ T249] netlink_rcv_skb (net/netlink/af_netlink.c:2552) 
[ 18.945511][ T249] ? rtnl_port_fill (net/core/rtnetlink.c:6857) 
[ 18.945681][ T249] ? netlink_ack (net/netlink/af_netlink.c:2529) 
[ 18.945851][ T249] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.946022][ T249] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 18.946193][ T249] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.946361][ T249] ? netlink_attachskb (net/netlink/af_netlink.c:1331) 
[ 18.946539][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 18.946770][ T249] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.946943][ T249] ? netlink_unicast (net/netlink/af_netlink.c:1815) 
[ 18.947111][ T249] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.947280][ T249] ? netlink_unicast (net/netlink/af_netlink.c:1815) 
[ 18.947447][ T249] ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2627) 
[ 18.947618][ T249] ? get_timestamp.constprop.0 (net/socket.c:2573) 
[ 18.947826][ T249] ? __copy_msghdr (net/socket.c:2553) 
[ 18.947996][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 18.948163][ T249] ___sys_sendmsg (net/socket.c:2683) 
[ 18.948332][ T249] ? copy_msghdr_from_user (net/socket.c:2670) 
[ 18.948500][ T249] ? __lock_acquire (kernel/locking/lockdep.c:5237) 
[ 18.948672][ T249] ? find_held_lock (kernel/locking/lockdep.c:5350) 
[ 18.948840][ T249] ? __might_fault (mm/memory.c:6958 mm/memory.c:6952) 
[ 18.949012][ T249] ? __lock_release (kernel/locking/lockdep.c:5536) 
[ 18.949178][ T249] ? __might_fault (mm/memory.c:6958 mm/memory.c:6952) 
[ 18.949348][ T249] ? _copy_to_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:147 ./include/linux/uaccess.h:197 lib/usercopy.c:26) 
[ 18.949518][ T249] __sys_sendmsg (net/socket.c:2713) 
[ 18.949687][ T249] ? __sys_sendmsg_sock (net/socket.c:2698) 
[ 18.949859][ T249] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) 
[ 18.950030][ T249] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.950198][ T249] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.950411][  T249] RIP: 0033:0x7fc3c1f5b1d7
[ 18.950587][ T249] Code: 0e 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:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   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)
[   18.951195][  T249] RSP: 002b:00007fff449f7478 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.951450][  T249] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc3c1f5b1d7
[   18.951703][  T249] RDX: 0000000000000000 RSI: 00007fff449f74e0 RDI: 0000000000000006
[   18.951958][  T249] RBP: 00007fff449f75d0 R08: 0000000000000006 R09: 00007fc3c2128060
[   18.952213][  T249] R10: 00007fc3c1e52770 R11: 0000000000000246 R12: 00007fff449f9953


Finger prints:
bond_fill_info:rtnl_link_fill:rtnl_getlink:rtnetlink_rcv_msg:netlink_rcv_skb