======================================
| [ 1432.246086] #PF: supervisor read access in kernel mode
| [ 1432.246146] #PF: error_code(0x0000) - not-present page
| [ 1432.246203] PGD 11e26067 P4D 11e26067 PUD 11e27067 PMD 0
| [ 1432.246257] Oops: Oops: 0000 [#1] SMP
[ 1432.246399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1432.246469] RIP: 0010:ip_route_output_key_hash_rcu (net/ipv4/route.c:2663 net/ipv4/route.c:2871) 
[ 1432.246547] Code: ff 49 8b 06 ba 05 00 00 00 48 8b 80 08 01 00 00 48 8b 80 10 04 00 00 e9 48 f9 ff ff e8 2e 55 81 ff e9 3f fc ff ff 49 8b 45 18 <48> 8b 40 58 48 89 c2 48 83 ca 01 49 89 54 24 10 48 3d e0 93 2e 94
All code
========
   0:	ff 49 8b             	decl   -0x75(%rcx)
   3:	06                   	(bad)
   4:	ba 05 00 00 00       	mov    $0x5,%edx
   9:	48 8b 80 08 01 00 00 	mov    0x108(%rax),%rax
  10:	48 8b 80 10 04 00 00 	mov    0x410(%rax),%rax
  17:	e9 48 f9 ff ff       	jmp    0xfffffffffffff964
  1c:	e8 2e 55 81 ff       	call   0xffffffffff81554f
  21:	e9 3f fc ff ff       	jmp    0xfffffffffffffc65
  26:	49 8b 45 18          	mov    0x18(%r13),%rax
  2a:*	48 8b 40 58          	mov    0x58(%rax),%rax		<-- trapping instruction
  2e:	48 89 c2             	mov    %rax,%rdx
  31:	48 83 ca 01          	or     $0x1,%rdx
  35:	49 89 54 24 10       	mov    %rdx,0x10(%r12)
  3a:	48 3d e0 93 2e 94    	cmp    $0xffffffff942e93e0,%rax

Code starting with the faulting instruction
===========================================
   0:	48 8b 40 58          	mov    0x58(%rax),%rax
   4:	48 89 c2             	mov    %rax,%rdx
   7:	48 83 ca 01          	or     $0x1,%rdx
   b:	49 89 54 24 10       	mov    %rdx,0x10(%r12)
  10:	48 3d e0 93 2e 94    	cmp    $0xffffffff942e93e0,%rax
[ 1432.246744] RSP: 0018:ffffc1b0022dfd58 EFLAGS: 00010246
[ 1432.246799] RAX: 0000000000000000 RBX: ffff9daf419758f8 RCX: 0000000000000017
[ 1432.246885] RDX: 0000000000000000 RSI: ffffffff9548e5c4 RDI: 0000000000000016
[ 1432.246969] RBP: ffff9daf4ccc5000 R08: 0000000000000000 R09: 0000000090000000
[ 1432.247052] R10: 0000000000000000 R11: 0000000000000003 R12: ffff9daf4e3b0cc0
[ 1432.247136] R13: ffffc1b0022dfdc0 R14: ffff9daf43db0600 R15: 0000000000000000
[ 1432.247222] FS:  00007fa84436a300(0000) GS:ffff9dafe991f000(0000) knlGS:0000000000000000
[ 1432.247307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1432.247375] CR2: 0000000000000058 CR3: 0000000009f1a001 CR4: 0000000000772ef0
[ 1432.247459] PKRU: 55555554
[ 1432.247485] Call Trace:
[ 1432.247514]  <TASK>
[ 1432.247542] ip_route_output_flow (net/ipv4/route.c:2701 ./include/net/route.h:169 net/ipv4/route.c:2928) 
[ 1432.247590] __ip4_datagram_connect (./include/net/route.h:355 net/ipv4/datagram.c:49) 
[ 1432.247645] udp_connect (net/ipv4/udp.c:2153) 
[ 1432.247687] __sys_connect (./include/linux/file.h:62 ./include/linux/file.h:83 net/socket.c:2095) 
[ 1432.247740] ? sock_alloc_file (./include/linux/fs.h:3229 net/socket.c:486) 
[ 1432.247787] ? __sys_socket (net/socket.c:503 net/socket.c:1740) 
[ 1432.247829] __x64_sys_connect (net/socket.c:2111 net/socket.c:2108 net/socket.c:2108) 
[ 1432.247870] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1432.247919] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1432.247973] RIP: 0033:0x7fa844600d77
[ 1432.248014] Code: 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 18 89 54 24 0c 48 89 34 24 89
All code
========
   0:	64 89 01             	mov    %eax,%fs:(%rcx)
   3:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
   7:	c3                   	ret
   8:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   f:	00 00 00 
  12:	90                   	nop
  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 2a 00 00 00       	mov    $0x2a,%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 18          	sub    $0x18,%rsp
  37:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  3b:	48 89 34 24          	mov    %rsi,(%rsp)
  3f:	89                   	.byte 0x89

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 18          	sub    $0x18,%rsp
   d:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  11:	48 89 34 24          	mov    %rsi,(%rsp)
  15:	89                   	.byte 0x89
[ 1432.248214] RSP: 002b:00007ffd59576878 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[ 1432.248298] RAX: ffffffffffffffda RBX: 00007ffd595779a8 RCX: 00007fa844600d77
[ 1432.248382] RDX: 0000000000000010 RSI: 00007ffd595768e0 RDI: 0000000000000007
[ 1432.248465] RBP: 00007ffd59576f30 R08: 00000000000000ff R09: 0000000000000000
[ 1432.248549] R10: 00007fa8444f85a0 R11: 0000000000000246 R12: 00007ffd59577288
[ 1432.248634] R13: 000000000040305a R14: 0000000000415dd0 R15: 00007fa84476c000
| [ 1432.250571] Voluntary context switch within RCU read-side critical section!
| [ 1432.250580] WARNING: CPU: 3 PID: 18377 at kernel/rcu/tree_plugin.h:332 rcu_note_context_switch (kernel/rcu/tree_plugin.h:332 (discriminator 11)) 
| [ 1432.250752] Modules linked in: vxcan can_dev xfrm_interface ip6_gre ip_gre gre macsec ipvlan xt_length act_ct nf_flow_table xt_conntrack drop_monitor netdevsim chacha chacha_x86_64 libchacha chacha20poly1305 libpoly1305 poly1305_x86_64 tls xt_mark act_mirred cls_basic sch_fq_codel act_gact cls_matchall sch_ingress xt_policy nft_compat nf_tables xfrm_user geneve vxlan act_csum act_pedit cls_flower sch_prio openvswitch psample nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nsh
| [ 1432.251315] Tainted: [D]=DIE
[ 1432.251357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1432.251428] RIP: 0010:rcu_note_context_switch (kernel/rcu/tree_plugin.h:332 (discriminator 11)) 
[ 1432.251484] Code: 00 00 00 be 01 00 00 00 48 89 ef e8 e9 e3 fe ff e9 43 fc ff ff c6 05 b3 0b 68 01 01 90 48 c7 c7 40 d5 52 94 e8 20 1e f6 ff 90 <0f> 0b 90 90 e9 b9 fb ff ff 80 7b 11 00 0f 84 40 fe ff ff 90 0f 0b
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 be 01 00 00 00    	add    %bh,0x1(%rsi)
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 e9 e3 fe ff       	call   0xfffffffffffee3f9
  10:	e9 43 fc ff ff       	jmp    0xfffffffffffffc58
  15:	c6 05 b3 0b 68 01 01 	movb   $0x1,0x1680bb3(%rip)        # 0x1680bcf
  1c:	90                   	nop
  1d:	48 c7 c7 40 d5 52 94 	mov    $0xffffffff9452d540,%rdi
  24:	e8 20 1e f6 ff       	call   0xfffffffffff61e49
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	e9 b9 fb ff ff       	jmp    0xfffffffffffffbec
  33:	80 7b 11 00          	cmpb   $0x0,0x11(%rbx)
  37:	0f 84 40 fe ff ff    	je     0xfffffffffffffe7d
  3d:	90                   	nop
  3e:	0f 0b                	ud2

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	90                   	nop
   4:	e9 b9 fb ff ff       	jmp    0xfffffffffffffbc2
   9:	80 7b 11 00          	cmpb   $0x0,0x11(%rbx)
   d:	0f 84 40 fe ff ff    	je     0xfffffffffffffe53
  13:	90                   	nop
  14:	0f 0b                	ud2
[ 1432.251685] RSP: 0018:ffffc1b0022dfcf0 EFLAGS: 00010082
[ 1432.251740] RAX: 0000000000000000 RBX: ffff9daf7eda9340 RCX: 00000000ffffdfff
[ 1432.251828] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[ 1432.251916] RBP: ffff9daf49cb9700 R08: ffffffff94d5b248 R09: 00000000ffffdfff
[ 1432.252003] R10: ffffffff94c7b260 R11: ffffffff94d32088 R12: 0000000000000000
[ 1432.252091] R13: 0000000000000000 R14: ffff9daf7eda85c0 R15: 0000000000000000
[ 1432.252178] FS:  0000000000000000(0000) GS:ffff9dafe991f000(0000) knlGS:0000000000000000
[ 1432.252266] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1432.252338] CR2: 0000000000000058 CR3: 000000003da46003 CR4: 0000000000772ef0
[ 1432.252426] PKRU: 55555554
[ 1432.252454] Call Trace:
[ 1432.252485]  <TASK>
[ 1432.252513] __schedule (./arch/x86/include/asm/preempt.h:80 kernel/sched/core.c:634 kernel/sched/sched.h:1519 kernel/sched/sched.h:1841 kernel/sched/core.c:6865) 
[ 1432.252557] schedule (./arch/x86/include/asm/preempt.h:85 kernel/sched/core.c:7044 kernel/sched/core.c:7058) 
[ 1432.252600] __lock_sock (./include/linux/spinlock.h:356 net/core/sock.c:3173) 
[ 1432.252644] ? housekeeping_test_cpu (kernel/sched/wait.c:402) 
[ 1432.252699] __lock_sock_fast (./include/linux/spinlock.h:396 net/core/sock.c:3788) 
[ 1432.252742] udp_destroy_sock (./include/net/sock.h:1703 net/ipv4/udp.c:2887) 
[ 1432.252787] sk_common_release (net/core/sock.c:3942) 
[ 1432.252829] inet_release (net/ipv4/af_inet.c:436) 
[ 1432.252873] __sock_release (net/socket.c:650) 
[ 1432.252916] sock_close (net/socket.c:1441) 
[ 1432.252959] __fput (fs/file_table.c:469) 
[ 1432.253010] task_work_run (./include/linux/sched.h:2070 (discriminator 1) kernel/task_work.c:229 (discriminator 1)) 
[ 1432.253054] do_exit (kernel/exit.c:962) 
[ 1432.253106] make_task_dead (kernel/exit.c:1050) 
[ 1432.253149] rewind_stack_and_make_dead (??:?) 
[ 1432.253208] RIP: 0033:0x7fa844600d77
[ 1432.253250] Code: Unable to access opcode bytes at 0x7fa844600d4d.

Code starting with the faulting instruction
===========================================
[ 1432.253323] RSP: 002b:00007ffd59576878 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[ 1432.253411] RAX: ffffffffffffffda RBX: 00007ffd595779a8 RCX: 00007fa844600d77
[ 1432.253497] RDX: 0000000000000010 RSI: 00007ffd595768e0 RDI: 0000000000000007
[ 1432.253583] RBP: 00007ffd59576f30 R08: 00000000000000ff R09: 0000000000000000
[ 1432.253670] R10: 00007fa8444f85a0 R11: 0000000000000246 R12: 00007ffd59577288


Finger prints:
ip_route_output_key_hash_rcu:ip_route_output_flow:__ip4_datagram_connect:udp_connect:__sys_connect
rcu_note_context_switch:__schedule:schedule:__lock_sock:__lock_sock_fast