BUG: unable to handle kernel paging request at ffffffffffff80d2
#PF error: [normal kernel read fault]
PGD 8874067 P4D 8874067 PUD 8876067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 28363 Comm: syz-executor.4 Not tainted 5.1.0-rc4+ #171
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:260 [inline]
RIP: 0010:sctp_v6_get_dst+0x8bf/0x1d80 net/sctp/ipv6.c:378
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 48 c1 d0 fa 31 ff 89 c3 89 c6 e8 dd 8c e3 fa 85 db
RSP: 0018:ffff88806d62f150 EFLAGS: 00010246
RAX: ffffffffffff8062 RBX: 0000000000000001 RCX: ffffc9000c45a000
RDX: 1ffffffffffff01a RSI: ffffffff868d0362 RDI: ffffffffffff80d2
RBP: ffff88806d62f2a0 R08: ffff88805e5d8340 R09: ffffed1015d05bc8
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: ffff888070490548
R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000214e
FS:  00007f4f3738c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffff80d2 CR3: 00000000a040d000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sctp_transport_route+0x132/0x370 net/sctp/transport.c:312
 sctp_assoc_add_peer+0x53e/0xfc0 net/sctp/associola.c:678
 sctp_process_param net/sctp/sm_make_chunk.c:2548 [inline]
 sctp_process_init+0x249f/0x2b20 net/sctp/sm_make_chunk.c:2361
 sctp_sf_do_unexpected_init net/sctp/sm_statefuns.c:1556 [inline]
 sctp_sf_do_unexpected_init.isra.0+0x7cd/0x1350 net/sctp/sm_statefuns.c:1456
 sctp_sf_do_5_2_1_siminit+0x35/0x40 net/sctp/sm_statefuns.c:1685
 sctp_do_sm+0x12c/0x5770 net/sctp/sm_sideeffect.c:1188
 sctp_assoc_bh_rcv+0x343/0x660 net/sctp/associola.c:1074
 sctp_inq_push+0x1ea/0x290 net/sctp/inqueue.c:95
 sctp_backlog_rcv+0x196/0xbe0 net/sctp/input.c:354
 sk_backlog_rcv include/net/sock.h:943 [inline]
 __release_sock+0x12e/0x3a0 net/core/sock.c:2413
 release_sock+0x59/0x1c0 net/core/sock.c:2929
 sctp_wait_for_connect+0x316/0x540 net/sctp/socket.c:9048
 __sctp_connect+0xac2/0xce0 net/sctp/socket.c:1241
 sctp_connect net/sctp/socket.c:4858 [inline]
 sctp_inet_connect+0x2a2/0x340 net/sctp/socket.c:4874
 __sys_connect+0x266/0x330 net/socket.c:1808
 __do_sys_connect net/socket.c:1819 [inline]
 __se_sys_connect net/socket.c:1816 [inline]
 __x64_sys_connect+0x73/0xb0 net/socket.c:1816
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458c29
Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f4f3738bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29
RDX: 000000000000001c RSI: 0000000020000200 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4f3738c6d4
R13: 00000000004bf05e R14: 00000000004d0140 R15: 00000000ffffffff
Modules linked in:
CR2: ffffffffffff80d2
---[ end trace 53c908d89f69dfc0 ]---
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:260 [inline]
RIP: 0010:sctp_v6_get_dst+0x8bf/0x1d80 net/sctp/ipv6.c:378
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 48 c1 d0 fa 31 ff 89 c3 89 c6 e8 dd 8c e3 fa 85 db
RSP: 0018:ffff88806d62f150 EFLAGS: 00010246
RAX: ffffffffffff8062 RBX: 0000000000000001 RCX: ffffc9000c45a000
RDX: 1ffffffffffff01a RSI: ffffffff868d0362 RDI: ffffffffffff80d2
RBP: ffff88806d62f2a0 R08: ffff88805e5d8340 R09: ffffed1015d05bc8
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: ffff888070490548
R13: dffffc0000000000 R14: 000000000000000a R15: 000000000000214e
FS:  00007f4f3738c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffff80d2 CR3: 00000000a040d000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400