hsr_addr_subst_dest: Unknown node
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8918 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest.cold+0x45/0x4e net/hsr/hsr_framereg.c:313
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8918 Comm: syz-executor.0 Not tainted 4.14.215-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x4b kernel/panic.c:547
 report_bug+0x208/0x249 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:hsr_addr_subst_dest.cold+0x45/0x4e net/hsr/hsr_framereg.c:313
RSP: 0018:ffff88809c52f838 EFLAGS: 00010286
RAX: 0000000000000021 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 000000000000bf83 RSI: ffffffff8145ddf0 RDI: ffffed10138a5efd
RBP: ffff88809354ea82 R08: 0000000000000021 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88809244cde0 R14: ffff88809244cde0 R15: 0000000000000000
 hsr_xmit net/hsr/hsr_forward.c:230 [inline]
 hsr_forward_do net/hsr/hsr_forward.c:295 [inline]
 hsr_forward_skb+0x103d/0x19b1 net/hsr/hsr_forward.c:373
 hsr_dev_xmit+0x6b/0xa0 net/hsr/hsr_device.c:242
 __netdev_start_xmit include/linux/netdevice.h:4039 [inline]
 netdev_start_xmit include/linux/netdevice.h:4048 [inline]
 xmit_one net/core/dev.c:3005 [inline]
 dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021
 __dev_queue_xmit+0x1d7f/0x2480 net/core/dev.c:3521
 pppoe_sendmsg+0x55e/0x6a0 drivers/net/ppp/pppoe.c:909
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
 __sys_sendmsg+0xa3/0x120 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 net/socket.c:2103
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45e219
RSP: 002b:00007f79c9e8bc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219
RDX: 0000000000000000 RSI: 0000000020000440 RDI: 0000000000000003
RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffffd6a0faf R14: 00007f79c9e8c9c0 R15: 000000000119bf8c
Kernel Offset: disabled
Rebooting in 86400 seconds..