------------[ cut here ]------------
hsr_addr_subst_dest: Unknown node
WARNING: CPU: 0 PID: 8338 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest+0x3ae/0x450 syzkaller/managers/linux-4-19/kernel/net/hsr/hsr_framereg.c:313
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8338 Comm: syz-executor825 Not tainted 4.19.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:118
 panic+0x26a/0x50e syzkaller/managers/linux-4-19/kernel/kernel/panic.c:186
 __warn.cold+0x20/0x5a syzkaller/managers/linux-4-19/kernel/kernel/panic.c:541
 report_bug+0x262/0x2b0 syzkaller/managers/linux-4-19/kernel/lib/bug.c:186
 fixup_bug syzkaller/managers/linux-4-19/kernel/arch/x86/kernel/traps.c:178 [inline]
 fixup_bug syzkaller/managers/linux-4-19/kernel/arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 syzkaller/managers/linux-4-19/kernel/arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:1038
RIP: 0010:hsr_addr_subst_dest+0x3ae/0x450 syzkaller/managers/linux-4-19/kernel/net/hsr/hsr_framereg.c:313
Code: ca 7a f9 84 db 0f 85 49 fd ff ff e8 8c c9 7a f9 48 c7 c6 e0 4c 70 89 48 c7 c7 a0 4c 70 89 c6 05 16 f5 26 03 01 e8 27 0d 08 00 <0f> 0b e9 23 fd ff ff e8 c6 7f b0 f9 e9 c2 fd ff ff 48 89 ef e8 49
RSP: 0018:ffff8880af3677a0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814de0d1 RDI: ffffed1015e6cee6
RBP: ffff8880a1723282 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000f5ff2c00
R13: ffff88809532b2e0 R14: 00000000489c3f6d R15: 000000000000017b
 hsr_xmit syzkaller/managers/linux-4-19/kernel/net/hsr/hsr_forward.c:230 [inline]
 hsr_forward_do syzkaller/managers/linux-4-19/kernel/net/hsr/hsr_forward.c:295 [inline]
 hsr_forward_skb+0x1284/0x1c30 syzkaller/managers/linux-4-19/kernel/net/hsr/hsr_forward.c:373
 hsr_dev_xmit+0x6b/0xa0 syzkaller/managers/linux-4-19/kernel/net/hsr/hsr_device.c:242
 __netdev_start_xmit syzkaller/managers/linux-4-19/kernel/./include/linux/netdevice.h:4333 [inline]
 netdev_start_xmit syzkaller/managers/linux-4-19/kernel/./include/linux/netdevice.h:4347 [inline]
 xmit_one syzkaller/managers/linux-4-19/kernel/net/core/dev.c:3256 [inline]
 dev_hard_start_xmit+0x1a8/0x920 syzkaller/managers/linux-4-19/kernel/net/core/dev.c:3272
 __dev_queue_xmit+0x269d/0x2e00 syzkaller/managers/linux-4-19/kernel/net/core/dev.c:3838
 packet_snd syzkaller/managers/linux-4-19/kernel/net/packet/af_packet.c:2988 [inline]
 packet_sendmsg+0x2474/0x6b00 syzkaller/managers/linux-4-19/kernel/net/packet/af_packet.c:3013
 sock_sendmsg_nosec syzkaller/managers/linux-4-19/kernel/net/socket.c:622 [inline]
 sock_sendmsg+0xc3/0x120 syzkaller/managers/linux-4-19/kernel/net/socket.c:632
 __sys_sendto+0x21a/0x320 syzkaller/managers/linux-4-19/kernel/net/socket.c:1787
 __do_sys_sendto syzkaller/managers/linux-4-19/kernel/net/socket.c:1799 [inline]
 __se_sys_sendto syzkaller/managers/linux-4-19/kernel/net/socket.c:1795 [inline]
 __x64_sys_sendto+0xdd/0x1b0 syzkaller/managers/linux-4-19/kernel/net/socket.c:1795
 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x443879
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc5db1df08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443879
RDX: 0000000000003287 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000002ff
R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffc5db1df30
R13: 00000000000f4240 R14: 00000000000095ee R15: 00007ffc5db1df24
Kernel Offset: disabled
Rebooting in 86400 seconds..