------------[ cut here ]------------ hsr_addr_subst_dest: Unknown node WARNING: CPU: 1 PID: 6710 at net/hsr/hsr_framereg.c:321 hsr_addr_subst_dest+0x36c/0x440 net/hsr/hsr_framereg.c:321 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 6710 Comm: syz-executor.0 Not tainted 5.6.0-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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:hsr_addr_subst_dest+0x36c/0x440 net/hsr/hsr_framereg.c:321 Code: 89 de e8 77 27 c1 f9 84 db 75 d4 e8 3e 26 c1 f9 48 c7 c6 40 aa d9 88 48 c7 c7 00 a9 d9 88 c6 05 0f 31 b0 02 01 e8 3c 35 93 f9 <0f> 0b eb b1 e8 1b 26 c1 f9 0f b6 1d fb 30 b0 02 31 ff 89 de e8 3b RSP: 0018:ffffc90008a5f780 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000016292 RSI: ffffffff815c0511 RDI: fffff5200114bee2 RBP: 00000000489c376f R08: ffff88805f6ba140 R09: ffffed1015ce45c9 R10: ffffed1015ce45c8 R11: ffff8880ae722e43 R12: 00000000f5ff0000 R13: ffff88806a1ecba0 R14: 000000000000017b R15: ffff88806a1ecba0 hsr_xmit net/hsr/hsr_forward.c:221 [inline] hsr_forward_do net/hsr/hsr_forward.c:285 [inline] hsr_forward_skb+0x134b/0x1d00 net/hsr/hsr_forward.c:361 hsr_dev_xmit+0x78/0xd0 net/hsr/hsr_device.c:232 __netdev_start_xmit include/linux/netdevice.h:4523 [inline] netdev_start_xmit include/linux/netdevice.h:4537 [inline] xmit_one net/core/dev.c:3477 [inline] dev_hard_start_xmit+0x1a4/0x9b0 net/core/dev.c:3493 __dev_queue_xmit+0x25e1/0x30a0 net/core/dev.c:4052 packet_snd net/packet/af_packet.c:2979 [inline] packet_sendmsg+0x23cc/0x5ce0 net/packet/af_packet.c:3004 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 __sys_sendto+0x21a/0x330 net/socket.c:2000 __do_sys_sendto net/socket.c:2012 [inline] __se_sys_sendto net/socket.c:2008 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2008 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c849 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f424a2d4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f424a2d56d4 RCX: 000000000045c849 RDX: 0000000000003287 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf00 R08: 0000000000000000 R09: 00000000000002ff R10: 0000000004000002 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a07 R14: 00000000004ccbd2 R15: 000000000076bf0c Kernel Offset: disabled Rebooting in 86400 seconds..