Warning: Permanently added '10.128.10.44' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 54.103744][ T6819] IPVS: ftp: loaded support on port[0] = 21 [ 54.137278][ T6819] netlink: 24 bytes leftover after parsing attributes in process `syz-executor131'. [ 54.192558][ T6819] device veth1 entered promiscuous mode [ 54.233033][ T6819] ------------[ cut here ]------------ [ 54.238506][ T6819] WARNING: CPU: 0 PID: 6819 at net/core/dev.c:8992 rollback_registered_many+0xbdb/0xf60 [ 54.249054][ T6819] Kernel panic - not syncing: panic_on_warn set ... [ 54.255636][ T6819] CPU: 0 PID: 6819 Comm: syz-executor131 Not tainted 5.8.0-rc3-syzkaller #0 [ 54.264285][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.274310][ T6819] Call Trace: [ 54.277574][ T6819] dump_stack+0x18f/0x20d [ 54.281879][ T6819] panic+0x2e3/0x75c [ 54.285746][ T6819] ? __warn_printk+0xf3/0xf3 [ 54.290309][ T6819] ? printk+0xba/0xed [ 54.294264][ T6819] ? log_store.cold+0x16/0x16 [ 54.299058][ T6819] ? do_syscall_64+0x60/0xe0 [ 54.303620][ T6819] ? __warn.cold+0x5/0x45 [ 54.307923][ T6819] ? __warn+0xd6/0x1f2 [ 54.312001][ T6819] ? rollback_registered_many+0xbdb/0xf60 [ 54.317695][ T6819] __warn.cold+0x20/0x45 [ 54.321915][ T6819] ? rollback_registered_many+0xbdb/0xf60 [ 54.327605][ T6819] report_bug+0x1bd/0x210 [ 54.331944][ T6819] handle_bug+0x38/0x90 [ 54.336095][ T6819] exc_invalid_op+0x13/0x40 [ 54.340570][ T6819] asm_exc_invalid_op+0x12/0x20 [ 54.345395][ T6819] RIP: 0010:rollback_registered_many+0xbdb/0xf60 [ 54.351786][ T6819] 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 [ 54.371361][ T6819] RSP: 0018:ffffc900016f6f60 EFLAGS: 00010293 [ 54.377447][ T6819] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff863553c5 [ 54.385390][ T6819] RDX: ffff8880972821c0 RSI: ffffffff863555db RDI: 0000000000000005 [ 54.393338][ T6819] RBP: ffff8880962a40b8 R08: 0000000000000000 R09: ffffffff8a7b2fc7 [ 54.401280][ T6819] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809af15f00 [ 54.409255][ T6819] R13: 0000000000034960 R14: ffff8880962a4000 R15: 0000000000000000 [ 54.417222][ T6819] ? rollback_registered_many+0x9c5/0xf60 [ 54.422914][ T6819] ? rollback_registered_many+0xbdb/0xf60 [ 54.428636][ T6819] ? dev_xdp_uninstall+0x3f0/0x3f0 [ 54.433730][ T6819] ? dev_set_mtu_ext+0x590/0x590 [ 54.438649][ T6819] unregister_netdevice_queue+0x2dd/0x570 [ 54.444347][ T6819] ? unregister_netdevice_many+0x50/0x50 [ 54.449970][ T6819] ? hsr_add_port+0x4f3/0x790 [ 54.454620][ T6819] hsr_dev_finalize+0x5ce/0x746 [ 54.459441][ T6819] hsr_newlink+0x27c/0x520 [ 54.463828][ T6819] ? hsr_dellink+0x70/0x70 [ 54.468343][ T6819] ? rtnl_create_link+0x184/0xad0 [ 54.473372][ T6819] ? hsr_dellink+0x70/0x70 [ 54.477760][ T6819] __rtnl_newlink+0x1090/0x1730 [ 54.482590][ T6819] ? rtnl_setlink+0x3c0/0x3c0 [ 54.487325][ T6819] ? lock_downgrade+0x820/0x820 [ 54.492154][ T6819] ? is_bpf_text_address+0xcb/0x160 [ 54.497323][ T6819] ? kernel_text_address+0xbd/0xf0 [ 54.502408][ T6819] ? __kernel_text_address+0x9/0x30 [ 54.507579][ T6819] ? unwind_get_return_address+0x51/0x90 [ 54.513286][ T6819] ? profile_setup.cold+0xc1/0xc1 [ 54.518279][ T6819] ? arch_stack_walk+0x97/0xf0 [ 54.523021][ T6819] ? stack_trace_save+0x8c/0xc0 [ 54.527842][ T6819] ? stack_trace_consume_entry+0x160/0x160 [ 54.533636][ T6819] ? mark_lock+0xbc/0x1710 [ 54.538113][ T6819] ? lock_is_held_type+0xb0/0xe0 [ 54.543113][ T6819] ? trace_kmalloc+0xfd/0x130 [ 54.547762][ T6819] ? kmem_cache_alloc_trace+0x168/0x2d0 [ 54.553277][ T6819] rtnl_newlink+0x64/0xa0 [ 54.557664][ T6819] ? __rtnl_newlink+0x1730/0x1730 [ 54.562661][ T6819] rtnetlink_rcv_msg+0x44e/0xad0 [ 54.567567][ T6819] ? rtnetlink_put_metrics+0x510/0x510 [ 54.572994][ T6819] ? lock_acquire+0x1f1/0xad0 [ 54.577640][ T6819] ? netlink_deliver_tap+0x146/0xb70 [ 54.582939][ T6819] netlink_rcv_skb+0x15a/0x430 [ 54.589233][ T6819] ? rtnetlink_put_metrics+0x510/0x510 [ 54.594687][ T6819] ? netlink_ack+0xa10/0xa10 [ 54.599253][ T6819] netlink_unicast+0x533/0x7d0 [ 54.603991][ T6819] ? netlink_attachskb+0x810/0x810 [ 54.609070][ T6819] ? _copy_from_iter_full+0x247/0x890 [ 54.614615][ T6819] ? __phys_addr+0x9a/0x110 [ 54.619087][ T6819] ? __phys_addr_symbol+0x2c/0x70 [ 54.624104][ T6819] ? __check_object_size+0x171/0x3e4 [ 54.629374][ T6819] netlink_sendmsg+0x856/0xd90 [ 54.634115][ T6819] ? netlink_unicast+0x7d0/0x7d0 [ 54.639024][ T6819] ? netlink_unicast+0x7d0/0x7d0 [ 54.643932][ T6819] sock_sendmsg+0xcf/0x120 [ 54.648322][ T6819] ____sys_sendmsg+0x6e8/0x810 [ 54.653079][ T6819] ? kernel_sendmsg+0x50/0x50 [ 54.657749][ T6819] ? do_recvmmsg+0x6d0/0x6d0 [ 54.662311][ T6819] ? __wake_up_common_lock+0xb4/0x130 [ 54.667665][ T6819] ? find_held_lock+0x2d/0x110 [ 54.672406][ T6819] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 54.678373][ T6819] ? __wake_up_common_lock+0xde/0x130 [ 54.683747][ T6819] ___sys_sendmsg+0xf3/0x170 [ 54.688316][ T6819] ? sendmsg_copy_msghdr+0x160/0x160 [ 54.693574][ T6819] ? lock_downgrade+0x820/0x820 [ 54.698404][ T6819] ? lock_downgrade+0x820/0x820 [ 54.703229][ T6819] ? __might_fault+0x190/0x1d0 [ 54.707969][ T6819] ? _copy_to_user+0x126/0x160 [ 54.712706][ T6819] ? move_addr_to_user+0xb5/0x200 [ 54.717720][ T6819] ? __fget_light+0x215/0x280 [ 54.722370][ T6819] __sys_sendmsg+0xe5/0x1b0 [ 54.726862][ T6819] ? __sys_sendmsg_sock+0xb0/0xb0 [ 54.731863][ T6819] ? do_syscall_64+0x1c/0xe0 [ 54.736424][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.742387][ T6819] do_syscall_64+0x60/0xe0 [ 54.746781][ T6819] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.752645][ T6819] RIP: 0033:0x440e29 [ 54.756520][ T6819] Code: Bad RIP value. [ 54.760557][ T6819] RSP: 002b:00007ffecefd0338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.768937][ T6819] RAX: ffffffffffffffda RBX: 00000000004a25f0 RCX: 0000000000440e29 [ 54.776880][ T6819] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 54.784824][ T6819] RBP: 00007ffecefd0340 R08: 0000000120080522 R09: 0000000120080522 [ 54.792855][ T6819] R10: 0000000120080522 R11: 0000000000000246 R12: 00000000004a25f0 [ 54.800912][ T6819] R13: 00000000004023c0 R14: 0000000000000000 R15: 0000000000000000 [ 54.810192][ T6819] Kernel Offset: disabled [ 54.814583][ T6819] Rebooting in 86400 seconds..