netlink: 'syz-executor2': attribute type 6 has an invalid length.
netlink: 17 bytes leftover after parsing attributes in process `syz-executor2'.
sctp: sctp_transport_update_pmtu: Reported pmtu 68 too low, using default minimum of 512
WARNING: CPU: 1 PID: 18 at include/net/sctp/sctp.h:599 sctp_mtu_payload include/net/sctp/sctp.h:599 [inline]
WARNING: CPU: 1 PID: 18 at include/net/sctp/sctp.h:599 sctp_assoc_update_frag_point+0x252/0x2c0 net/sctp/associola.c:1416
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.18.0-rc3+ #124
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:sctp_mtu_payload include/net/sctp/sctp.h:599 [inline]
RIP: 0010:sctp_assoc_update_frag_point+0x252/0x2c0 net/sctp/associola.c:1416
Code: 73 fa 45 39 e5 76 1e e8 5c 60 73 fa 45 29 e5 45 89 ec e9 34 ff ff ff e8 4c 60 73 fa 45 8d 66 34 e9 09 ff ff ff e8 3e 60 73 fa <0f> 0b 45 31 e4 e9 17 ff ff ff e8 1f 39 b1 fa e9 31 fe ff ff 4c 89 
RSP: 0018:ffff8801d9b26e88 EFLAGS: 00010206
RAX: ffff8801d9b0e4c0 RBX: ffff880196274700 RCX: ffffffff8708ab6a
RDX: 0000000000000100 RSI: ffffffff8708ab92 RDI: 0000000000000004
RBP: ffff8801d9b26eb0 R08: ffff8801d9b0e4c0 R09: ffffed003405e97f
R10: ffffed003405e97f R11: ffff8801a02f4bff R12: 0000000000000044
R13: 0000000000000044 R14: 0000000000000010 R15: ffff880196274700
 sctp_assoc_set_pmtu net/sctp/associola.c:1432 [inline]
 sctp_assoc_sync_pmtu+0x251/0x2e0 net/sctp/associola.c:1460
 sctp_icmp_frag_needed+0x16f/0x2c0 net/sctp/input.c:418
 sctp_v4_err+0x94d/0xb40 net/sctp/input.c:617
 icmp_socket_deliver+0x285/0x460 net/ipv4/icmp.c:766
 icmp_unreach+0x3bc/0xc60 net/ipv4/icmp.c:883
 icmp_rcv+0x8b1/0x1560 net/ipv4/icmp.c:1065
 ip_local_deliver_finish+0x2eb/0xda0 net/ipv4/ip_input.c:215
 NF_HOOK include/linux/netfilter.h:287 [inline]
 ip_local_deliver+0x1e9/0x750 net/ipv4/ip_input.c:256
IPVS: ftp: loaded support on port[0] = 21
 dst_input include/net/dst.h:450 [inline]
 ip_rcv_finish+0x1f9/0x300 net/ipv4/ip_input.c:415
 NF_HOOK include/linux/netfilter.h:287 [inline]
 ip_rcv+0xed/0x610 net/ipv4/ip_input.c:524
netlink: 'syz-executor2': attribute type 6 has an invalid length.
 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4878
 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:4988
netlink: 17 bytes leftover after parsing attributes in process `syz-executor2'.
 process_backlog+0x219/0x760 net/core/dev.c:5785
 napi_poll net/core/dev.c:6200 [inline]
 net_rx_action+0x7a5/0x1950 net/core/dev.c:6266
 __do_softirq+0x2e8/0xb17 kernel/softirq.c:288
 run_ksoftirqd+0x86/0x100 kernel/softirq.c:649
 smpboot_thread_fn+0x417/0x870 kernel/smpboot.c:164
 kthread+0x345/0x410 kernel/kthread.c:240
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..