Warning: Permanently added '10.128.0.250' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 58.691281][ T6805] IPVS: ftp: loaded support on port[0] = 21 [ 58.726520][ T6805] netlink: 24 bytes leftover after parsing attributes in process `syz-executor930'. [ 58.776864][ T6805] device veth1 entered promiscuous mode [ 58.817749][ T6805] ------------[ cut here ]------------ [ 58.823374][ T6805] WARNING: CPU: 1 PID: 6805 at net/core/dev.c:8992 rollback_registered_many+0xbdb/0xf60 [ 58.833985][ T6805] Kernel panic - not syncing: panic_on_warn set ... [ 58.840592][ T6805] CPU: 1 PID: 6805 Comm: syz-executor930 Not tainted 5.8.0-rc3-syzkaller #0 [ 58.849326][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.859535][ T6805] Call Trace: [ 58.862840][ T6805] dump_stack+0x18f/0x20d [ 58.867157][ T6805] panic+0x2e3/0x75c [ 58.871031][ T6805] ? __warn_printk+0xf3/0xf3 [ 58.875600][ T6805] ? printk+0xba/0xed [ 58.879586][ T6805] ? log_store.cold+0x16/0x16 [ 58.884264][ T6805] ? do_syscall_64+0x60/0xe0 [ 58.888838][ T6805] ? __warn.cold+0x5/0x45 [ 58.893149][ T6805] ? __warn+0xd6/0x1f2 [ 58.897217][ T6805] ? rollback_registered_many+0xbdb/0xf60 [ 58.902918][ T6805] __warn.cold+0x20/0x45 [ 58.907148][ T6805] ? rollback_registered_many+0xbdb/0xf60 [ 58.912848][ T6805] report_bug+0x1bd/0x210 [ 58.917338][ T6805] handle_bug+0x38/0x90 [ 58.921481][ T6805] exc_invalid_op+0x13/0x40 [ 58.926051][ T6805] asm_exc_invalid_op+0x12/0x20 [ 58.930972][ T6805] RIP: 0010:rollback_registered_many+0xbdb/0xf60 [ 58.937279][ T6805] Code: 00 00 31 f6 4c 89 f7 e8 f3 d9 fc ff e9 4f fe ff ff 4c 89 e7 e9 48 fd ff ff e8 51 61 3e fb 0f 0b e9 da fd ff ff e8 45 61 3e fb <0f> 0b e9 18 fe ff ff e8 39 61 3e fb 0f b6 2d 2e 28 74 04 31 ff 89 [ 58.956865][ T6805] RSP: 0018:ffffc900019fef60 EFLAGS: 00010293 [ 58.962920][ T6805] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff863553c5 [ 58.971047][ T6805] RDX: ffff888095026540 RSI: ffffffff863555db RDI: 0000000000000005 [ 58.979017][ T6805] RBP: ffff8880884a20b8 R08: 0000000000000000 R09: ffffffff8a7b2fc7 [ 58.986975][ T6805] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880972a8d80 [ 58.994927][ T6805] R13: 0000000000034960 R14: ffff8880884a2000 R15: 0000000000000000 [ 59.002903][ T6805] ? rollback_registered_many+0x9c5/0xf60 [ 59.008614][ T6805] ? rollback_registered_many+0xbdb/0xf60 [ 59.014333][ T6805] ? dev_xdp_uninstall+0x3f0/0x3f0 [ 59.019432][ T6805] ? dev_set_mtu_ext+0x590/0x590 [ 59.024352][ T6805] unregister_netdevice_queue+0x2dd/0x570 [ 59.030078][ T6805] ? unregister_netdevice_many+0x50/0x50 [ 59.035691][ T6805] ? hsr_add_port+0x4f3/0x790 [ 59.040350][ T6805] hsr_dev_finalize+0x5ce/0x746 [ 59.045326][ T6805] hsr_newlink+0x27c/0x520 [ 59.049720][ T6805] ? hsr_dellink+0x70/0x70 [ 59.054153][ T6805] ? rtnl_create_link+0x184/0xad0 [ 59.059175][ T6805] ? hsr_dellink+0x70/0x70 [ 59.063588][ T6805] __rtnl_newlink+0x1090/0x1730 [ 59.068424][ T6805] ? rtnl_setlink+0x3c0/0x3c0 [ 59.073099][ T6805] ? lock_downgrade+0x820/0x820 [ 59.077950][ T6805] ? is_bpf_text_address+0xcb/0x160 [ 59.083131][ T6805] ? kernel_text_address+0xbd/0xf0 [ 59.088223][ T6805] ? __kernel_text_address+0x9/0x30 [ 59.093400][ T6805] ? unwind_get_return_address+0x51/0x90 [ 59.099123][ T6805] ? profile_setup.cold+0xc1/0xc1 [ 59.104153][ T6805] ? arch_stack_walk+0x97/0xf0 [ 59.108908][ T6805] ? stack_trace_save+0x8c/0xc0 [ 59.113735][ T6805] ? stack_trace_consume_entry+0x160/0x160 [ 59.119540][ T6805] ? mark_lock+0xbc/0x1710 [ 59.123942][ T6805] ? lock_is_held_type+0xb0/0xe0 [ 59.129328][ T6805] ? trace_kmalloc+0xfd/0x130 [ 59.133994][ T6805] ? kmem_cache_alloc_trace+0x168/0x2d0 [ 59.139711][ T6805] rtnl_newlink+0x64/0xa0 [ 59.144030][ T6805] ? __rtnl_newlink+0x1730/0x1730 [ 59.149067][ T6805] rtnetlink_rcv_msg+0x44e/0xad0 [ 59.153994][ T6805] ? rtnetlink_put_metrics+0x510/0x510 [ 59.159444][ T6805] ? lock_acquire+0x1f1/0xad0 [ 59.164324][ T6805] ? netlink_deliver_tap+0x146/0xb70 [ 59.170382][ T6805] netlink_rcv_skb+0x15a/0x430 [ 59.175138][ T6805] ? rtnetlink_put_metrics+0x510/0x510 [ 59.181045][ T6805] ? netlink_ack+0xa10/0xa10 [ 59.185627][ T6805] netlink_unicast+0x533/0x7d0 [ 59.190373][ T6805] ? netlink_attachskb+0x810/0x810 [ 59.195463][ T6805] ? _copy_from_iter_full+0x247/0x890 [ 59.200829][ T6805] ? __phys_addr+0x9a/0x110 [ 59.205336][ T6805] ? __phys_addr_symbol+0x2c/0x70 [ 59.210432][ T6805] ? __check_object_size+0x171/0x3e4 [ 59.215700][ T6805] netlink_sendmsg+0x856/0xd90 [ 59.220446][ T6805] ? netlink_unicast+0x7d0/0x7d0 [ 59.225368][ T6805] ? netlink_unicast+0x7d0/0x7d0 [ 59.230466][ T6805] sock_sendmsg+0xcf/0x120 [ 59.235037][ T6805] ____sys_sendmsg+0x6e8/0x810 [ 59.239822][ T6805] ? kernel_sendmsg+0x50/0x50 [ 59.244660][ T6805] ? do_recvmmsg+0x6d0/0x6d0 [ 59.249537][ T6805] ? __wake_up_common_lock+0xb4/0x130 [ 59.255432][ T6805] ? find_held_lock+0x2d/0x110 [ 59.260527][ T6805] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 59.267592][ T6805] ? __wake_up_common_lock+0xde/0x130 [ 59.273384][ T6805] ___sys_sendmsg+0xf3/0x170 [ 59.278254][ T6805] ? sendmsg_copy_msghdr+0x160/0x160 [ 59.283805][ T6805] ? lock_downgrade+0x820/0x820 [ 59.289584][ T6805] ? lock_downgrade+0x820/0x820 [ 59.295246][ T6805] ? __might_fault+0x190/0x1d0 [ 59.302554][ T6805] ? _copy_to_user+0x126/0x160 [ 59.310351][ T6805] ? move_addr_to_user+0xb5/0x200 [ 59.317481][ T6805] ? __fget_light+0x215/0x280 [ 59.322452][ T6805] __sys_sendmsg+0xe5/0x1b0 [ 59.327485][ T6805] ? __sys_sendmsg_sock+0xb0/0xb0 [ 59.334876][ T6805] ? do_syscall_64+0x1c/0xe0 [ 59.344471][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.352111][ T6805] do_syscall_64+0x60/0xe0 [ 59.356865][ T6805] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.362855][ T6805] RIP: 0033:0x440e29 [ 59.366723][ T6805] Code: Bad RIP value. [ 59.370878][ T6805] RSP: 002b:00007ffdf7433518 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 59.379577][ T6805] RAX: ffffffffffffffda RBX: 00000000004a25f0 RCX: 0000000000440e29 [ 59.387706][ T6805] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 59.395843][ T6805] RBP: 00007ffdf7433520 R08: 0000000120080522 R09: 0000000120080522 [ 59.403885][ T6805] R10: 0000000120080522 R11: 0000000000000246 R12: 00000000004a25f0 [ 59.412136][ T6805] R13: 00000000004023c0 R14: 0000000000000000 R15: 0000000000000000 [ 59.422223][ T6805] Kernel Offset: disabled [ 59.426637][ T6805] Rebooting in 86400 seconds..