BUG: unable to handle page fault for address: ffffffffffffc070
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 8a70067 P4D 8a70067 PUD 8a72067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 12135 Comm: syz-executor.0 Not tainted 5.2.0-rc2+ #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:268 [inline]
RIP: 0010:sctp_v6_get_dst+0x8bf/0x1d80 net/sctp/ipv6.c:363
Code: 10 ff ff ff 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 48 13 00 00 48 8b 85 10 ff ff ff <4c> 8b 60 70 e8 e8 6a c3 fa 31 ff 89 c3 89 c6 e8 6d 86 d6 fa 85 db
RSP: 0018:ffff88806c88f150 EFLAGS: 00010246
RAX: ffffffffffffc000 RBX: 0000000000000001 RCX: ffffc90012f74000
RDX: 1ffffffffffff80e RSI: ffffffff869a2092 RDI: ffffffffffffc070
RBP: ffff88806c88f2a0 R08: ffff8880668a4400 R09: ffffed1015d26be8
R10: ffffed1015d26be7 R11: ffff8880ae935f3b R12: ffff888096168948
R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000204e
FS:  00007f67114f0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffc070 CR3: 000000009910b000 CR4: 00000000001406e0
Call Trace:
 sctp_transport_route+0x12d/0x360 net/sctp/transport.c:297
 sctp_assoc_add_peer+0x53e/0xfc0 net/sctp/associola.c:663
 sctp_process_param net/sctp/sm_make_chunk.c:2531 [inline]
 sctp_process_init+0x2491/0x2b10 net/sctp/sm_make_chunk.c:2344
 sctp_sf_do_unexpected_init net/sctp/sm_statefuns.c:1541 [inline]
 sctp_sf_do_unexpected_init.isra.0+0x7cd/0x1350 net/sctp/sm_statefuns.c:1441
 sctp_sf_do_5_2_1_siminit+0x35/0x40 net/sctp/sm_statefuns.c:1670
 sctp_do_sm+0x121/0x50e0 net/sctp/sm_sideeffect.c:1147
 sctp_assoc_bh_rcv+0x343/0x660 net/sctp/associola.c:1059
 sctp_inq_push+0x1e4/0x280 net/sctp/inqueue.c:80
 sctp_backlog_rcv+0x196/0xbe0 net/sctp/input.c:339
 sk_backlog_rcv include/net/sock.h:950 [inline]
 __release_sock+0x129/0x390 net/core/sock.c:2418
 release_sock+0x59/0x1c0 net/core/sock.c:2934
 sctp_wait_for_connect+0x316/0x540 net/sctp/socket.c:9039
 __sctp_connect+0xab2/0xcd0 net/sctp/socket.c:1226
 sctp_connect net/sctp/socket.c:4846 [inline]
 sctp_inet_connect+0x29c/0x340 net/sctp/socket.c:4862
 __sys_connect+0x264/0x330 net/socket.c:1840
 __do_sys_connect net/socket.c:1851 [inline]
 __se_sys_connect net/socket.c:1848 [inline]
 __x64_sys_connect+0x73/0xb0 net/socket.c:1848
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f67114efc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000004
RBP: 000000000075bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f67114f06d4
R13: 00000000004bf74d R14: 00000000004d0c58 R15: 00000000ffffffff
Modules linked in:
CR2: ffffffffffffc070
---[ end trace 8d706cd551ab8a7e ]---
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:268 [inline]
RIP: 0010:sctp_v6_get_dst+0x8bf/0x1d80 net/sctp/ipv6.c:363
Code: 10 ff ff ff 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 48 13 00 00 48 8b 85 10 ff ff ff <4c> 8b 60 70 e8 e8 6a c3 fa 31 ff 89 c3 89 c6 e8 6d 86 d6 fa 85 db
RSP: 0018:ffff88806c88f150 EFLAGS: 00010246
RAX: ffffffffffffc000 RBX: 0000000000000001 RCX: ffffc90012f74000
RDX: 1ffffffffffff80e RSI: ffffffff869a2092 RDI: ffffffffffffc070
RBP: ffff88806c88f2a0 R08: ffff8880668a4400 R09: ffffed1015d26be8
R10: ffffed1015d26be7 R11: ffff8880ae935f3b R12: ffff888096168948
R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000204e
FS:  00007f67114f0700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffc070 CR3: 000000009910b000 CR4: 00000000001406e0