BUG: unable to handle page fault for address: ffffed101ac89400
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 17fff6067 P4D 17fff6067 PUD 7ffd6067 PMD 0 
Oops: Oops: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 9144 Comm: syz.5.884 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__mkroute_output net/ipv4/route.c:2649 [inline]
RIP: 0010:ip_route_output_key_hash_rcu+0x6c0/0x2870 net/ipv4/route.c:2875
Code: 24 30 48 85 ed 0f 84 91 14 00 00 e8 6a 6f 1b f8 48 83 c5 30 e8 61 6f 1b f8 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 06 1e 00 00 48 8b 6d 00 e8 ed 33 a2 01 31 ff 41
RSP: 0018:ffffc9000cd36f90 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffffc9000cd37168 RCX: ffffc90028bd9000
RDX: 1ffff1101ac89400 RSI: ffffffff89ed2b5f RDI: ffff888032d56758
RBP: ffff8880d644a000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888032d56720
R13: ffff888057bd4000 R14: ffffc9000cd37040 R15: ffff888036f28000
FS:  00007f2406c0e6c0(0000) GS:ffff8880d644a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101ac89400 CR3: 0000000057619000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ip_route_output_key_hash+0x118/0x2b0 net/ipv4/route.c:2705
 __ip_route_output_key include/net/route.h:169 [inline]
 ip_route_output_flow+0x27/0x150 net/ipv4/route.c:2932
 ip_route_output_key include/net/route.h:179 [inline]
 ip_tunnel_bind_dev+0x49e/0xb70 net/ipv4/ip_tunnel.c:300
 ip_tunnel_newlink+0x331/0x8f0 net/ipv4/ip_tunnel.c:1222
 erspan_newlink+0x1c9/0x250 net/ipv4/ip_gre.c:1445
 rtnl_newlink_create net/core/rtnetlink.c:3840 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3957 [inline]
 rtnl_newlink+0x1494/0x2380 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa54/0xc30 net/socket.c:2592
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2646
 __sys_sendmsg+0x170/0x220 net/socket.c:2678
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2405d9c629
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2406c0e028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2406016180 RCX: 00007f2405d9c629
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 000000000000000a
RBP: 00007f2405e32b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2406016218 R14: 00007f2406016180 R15: 00007ffd391448d8
 </TASK>
Modules linked in:
CR2: ffffed101ac89400
---[ end trace 0000000000000000 ]---
RIP: 0010:__mkroute_output net/ipv4/route.c:2649 [inline]
RIP: 0010:ip_route_output_key_hash_rcu+0x6c0/0x2870 net/ipv4/route.c:2875
Code: 24 30 48 85 ed 0f 84 91 14 00 00 e8 6a 6f 1b f8 48 83 c5 30 e8 61 6f 1b f8 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 06 1e 00 00 48 8b 6d 00 e8 ed 33 a2 01 31 ff 41
RSP: 0018:ffffc9000cd36f90 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffffc9000cd37168 RCX: ffffc90028bd9000
RDX: 1ffff1101ac89400 RSI: ffffffff89ed2b5f RDI: ffff888032d56758
RBP: ffff8880d644a000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888032d56720
R13: ffff888057bd4000 R14: ffffc9000cd37040 R15: ffff888036f28000
FS:  00007f2406c0e6c0(0000) GS:ffff8880d644a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101ac89400 CR3: 0000000057619000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
   0:	24 30                	and    $0x30,%al
   2:	48 85 ed             	test   %rbp,%rbp
   5:	0f 84 91 14 00 00    	je     0x149c
   b:	e8 6a 6f 1b f8       	call   0xf81b6f7a
  10:	48 83 c5 30          	add    $0x30,%rbp
  14:	e8 61 6f 1b f8       	call   0xf81b6f7a
  19:	48 89 ea             	mov    %rbp,%rdx
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 06 1e 00 00    	jne    0x1e3a
  34:	48 8b 6d 00          	mov    0x0(%rbp),%rbp
  38:	e8 ed 33 a2 01       	call   0x1a2342a
  3d:	31 ff                	xor    %edi,%edi
  3f:	41                   	rex.B