netlink: 84 bytes leftover after parsing attributes in process `syz-executor7'.
IPVS: length: 235 != 24
sctp: sctp_transport_update_pmtu: Reported pmtu 68 too low, using default minimum of 512
WARNING: CPU: 1 PID: 8850 at include/net/sctp/sctp.h:599 sctp_mtu_payload include/net/sctp/sctp.h:599 [inline]
WARNING: CPU: 1 PID: 8850 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: 8850 Comm: kworker/u4:7 Not tainted 4.18.0-rc3+ #111
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 <IRQ>
 __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: 74 fa 45 39 e5 76 1e e8 8c 13 74 fa 45 29 e5 45 89 ec e9 34 ff ff ff e8 7c 13 74 fa 45 8d 66 34 e9 09 ff ff ff e8 6e 13 74 fa <0f> 0b 45 31 e4 e9 17 ff ff ff e8 4f ec b1 fa e9 31 fe ff ff 4c 89 
RSP: 0018:ffff8801daf06ec0 EFLAGS: 00010206
RAX: ffff8801ad096540 RBX: ffff8801999cc1c0 RCX: ffffffff8707f83a
RDX: 0000000000000100 RSI: ffffffff8707f862 RDI: 0000000000000004
RBP: ffff8801daf06ee8 R08: ffff8801ad096540 R09: ffffed0033fc6977
R10: ffffed0033fc6977 R11: ffff88019fe34bbf R12: 0000000000000044
R13: 0000000000000044 R14: 0000000000000010 R15: ffff8801999cc1c0
 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
 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
 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4767
 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:4872
 process_backlog+0x219/0x760 net/core/dev.c:5663
 napi_poll net/core/dev.c:6078 [inline]
 net_rx_action+0x7a5/0x1950 net/core/dev.c:6144
 __do_softirq+0x2e8/0xb17 kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x1d1/0x200 kernel/softirq.c:408
 exiting_irq arch/x86/include/asm/apic.h:527 [inline]
 smp_apic_timer_interrupt+0x186/0x730 arch/x86/kernel/apic/apic.c:1052
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863
 </IRQ>
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:778 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:800 [inline]
RIP: 0010:lock_release+0x105/0xa30 kernel/locking/lockdep.c:3939
Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 88 07 00 00 48 83 3d 12 a2 92 07 00 0f 84 8f 06 00 00 9c <58> 0f 1f 44 00 00 48 c7 c7 70 b0 f1 88 48 89 85 e8 fe ff ff 48 b8 
RSP: 0018:ffff88019bac71d0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 1ffff10033758e40 RCX: ffffffff866502c2
RDX: 1ffffffff11e360c RSI: 0000000000000001 RDI: ffffffff88f1b060
RBP: ffff88019bac7308 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed003b5e5938 R11: ffff8801daf2c9c3 R12: ffff88019bac72e0
R13: ffffffff88f92620 R14: dffffc0000000000 R15: ffff8801ad096540
 rcu_lock_release include/linux/rcupdate.h:250 [inline]
 rcu_read_unlock include/linux/rcupdate.h:685 [inline]
 inet_twsk_purge+0x5ec/0x880 net/ipv4/inet_timewait_sock.c:298
 dccp_v6_exit_batch+0x1a/0x20 net/dccp/ipv6.c:1113
 ops_exit_list.isra.7+0x105/0x160 net/core/net_namespace.c:155
 cleanup_net+0x537/0xb50 net/core/net_namespace.c:523
 process_one_work+0xc73/0x1ba0 kernel/workqueue.c:2153
 worker_thread+0x189/0x13c0 kernel/workqueue.c:2296
 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..