bridge0: port 12(veth1_macvtap) entered disabled state
bridge0: port 11(ipvlan1) entered blocking state
bridge0: port 11(ipvlan1) entered disabled state
------------[ cut here ]------------
HSR: VLAN not yet supported
WARNING: CPU: 0 PID: 9 at net/hsr/hsr_forward.c:336 hsr_fill_frame_info net/hsr/hsr_forward.c:336 [inline]
WARNING: CPU: 0 PID: 9 at net/hsr/hsr_forward.c:336 hsr_forward_skb+0x177e/0x1c30 net/hsr/hsr_forward.c:370
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.139-syzkaller #0
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+0x1fc/0x2fe lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x61 kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:hsr_fill_frame_info net/hsr/hsr_forward.c:336 [inline]
RIP: 0010:hsr_forward_skb+0x177e/0x1c30 net/hsr/hsr_forward.c:370
Code: 4c 89 ea 48 8b 7c 24 28 e8 0f 5b ff ff e9 c7 f5 ff ff e8 b5 d7 35 fa 48 c7 c7 60 93 49 88 c6 05 20 0c 74 02 01 e8 dd cf 09 fa <0f> 0b 48 ba 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 0f b6 0c
RSP: 0018:ffff8880a9f0f1f8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff8154cf41 RDI: ffffed10153e1e31
RBP: ffff88808c24fb80 R08: 0000000000000000 R09: 00000000000009c9
R10: 0000000000000006 R11: 0000000000000000 R12: ffff88808c24fc46
R13: ffff88809efc6180 R14: ffff88809769250a R15: ffff8880976924fe
 hsr_dev_xmit+0x6b/0xa0 net/hsr/hsr_device.c:242
 __netdev_start_xmit include/linux/netdevice.h:4333 [inline]
 netdev_start_xmit include/linux/netdevice.h:4347 [inline]
 xmit_one net/core/dev.c:3256 [inline]
 dev_hard_start_xmit+0x1a8/0x920 net/core/dev.c:3272
 __dev_queue_xmit+0x269d/0x2e00 net/core/dev.c:3838
 br_dev_queue_push_xmit+0x25a/0x6c0 net/bridge/br_forward.c:56
 NF_HOOK include/linux/netfilter.h:289 [inline]
 br_forward_finish+0xb5/0x3d0 net/bridge/br_forward.c:69
 NF_HOOK include/linux/netfilter.h:289 [inline]
 __br_forward+0x5ff/0xae0 net/bridge/br_forward.c:113
 deliver_clone net/bridge/br_forward.c:129 [inline]
 maybe_deliver+0x292/0x380 net/bridge/br_forward.c:184
 br_flood+0x158/0x4d0 net/bridge/br_forward.c:226
 br_handle_frame_finish+0xf41/0x1410 net/bridge/br_input.c:167
 NF_HOOK include/linux/netfilter.h:289 [inline]
 br_handle_frame+0x814/0x13ae net/bridge/br_input.c:306
 __netif_receive_skb_core+0x929/0x3270 net/core/dev.c:4876
 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:4952
 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066
 process_backlog+0x239/0x6f0 net/core/dev.c:5848
 napi_poll net/core/dev.c:6271 [inline]
 net_rx_action+0x4ac/0xfb0 net/core/dev.c:6337
 __do_softirq+0x26c/0x9a0 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x30b/0x410 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..