BUG: unable to handle page fault for address: ffffed1012e8a200
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 7ffd5067 P4D 7ffd5067 PUD 3fffa067 PMD 0 
Oops: Oops: 0000 [#1] SMP KASAN NOPTI
CPU: 3 UID: 0 PID: 15974 Comm: syz.3.3814 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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 da 77 1d f8 48 83 c5 30 e8 d1 77 1d 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 fd 1d a2 01 31 ff 41
RSP: 0018:ffffc90022f87650 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffffc90022f878a0 RCX: ffffc90028db9000
RDX: 1ffff11012e8a200 RSI: ffffffff89ea814f RDI: ffff888028c1ac58
RBP: ffff888097451000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888028c1ac20
R13: ffff888052d39c00 R14: ffffc90022f87700 R15: ffff88807038c000
FS:  0000000000000000(0000) GS:ffff888097451000(0063) knlGS:00000000f541cb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffed1012e8a200 CR3: 00000000682e6000 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]
 sctp_v4_get_dst+0x3c4/0x1220 net/sctp/protocol.c:455
 sctp_transport_route+0x131/0x360 net/sctp/transport.c:448
 sctp_assoc_add_peer+0x765/0x14f0 net/sctp/associola.c:663
 sctp_connect_new_asoc+0x1f8/0x770 net/sctp/socket.c:1100
 sctp_sendmsg_new_asoc net/sctp/socket.c:1692 [inline]
 sctp_sendmsg+0x171a/0x22b0 net/sctp/socket.c:2003
 inet_sendmsg+0x11c/0x140 net/ipv4/af_inet.c:859
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x467/0x520 net/socket.c:2206
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __ia32_sys_sendto+0xdd/0x1b0 net/socket.c:2209
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xe3/0x8c0 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf704ef6c
Code: d2 74 05 c1 e8 0c 89 02 8b 5d fc 31 c0 c9 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 58 b8 77 00 00 00 cd 80 0f 0b 8d b6 00 00 00 00 b8 ad
RSP: 002b:00000000f541c50c EFLAGS: 00000292 ORIG_RAX: 0000000000000171
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000080000140
RDX: 0000000000034000 RSI: 0000000000000000 RDI: 0000000080004ff0
RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
CR2: ffffed1012e8a200
---[ 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 da 77 1d f8 48 83 c5 30 e8 d1 77 1d 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 fd 1d a2 01 31 ff 41
RSP: 0018:ffffc90022f87650 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffffc90022f878a0 RCX: ffffc90028db9000
RDX: 1ffff11012e8a200 RSI: ffffffff89ea814f RDI: ffff888028c1ac58
RBP: ffff888097451000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888028c1ac20
R13: ffff888052d39c00 R14: ffffc90022f87700 R15: ffff88807038c000
FS:  0000000000000000(0000) GS:ffff888097451000(0063) knlGS:00000000f541cb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffed1012e8a200 CR3: 00000000682e6000 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 da 77 1d f8       	call   0xf81d77ea
  10:	48 83 c5 30          	add    $0x30,%rbp
  14:	e8 d1 77 1d f8       	call   0xf81d77ea
  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 fd 1d a2 01       	call   0x1a21e3a
  3d:	31 ff                	xor    %edi,%edi
  3f:	41                   	rex.B