[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.44' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.568842][ T6791] IPVS: ftp: loaded support on port[0] = 21 [ 42.603560][ T6791] netlink: 24 bytes leftover after parsing attributes in process `syz-executor643'. [ 42.663903][ T6791] device veth1 entered promiscuous mode [ 42.713208][ T6791] ------------[ cut here ]------------ [ 42.718830][ T6791] WARNING: CPU: 1 PID: 6791 at net/core/dev.c:8992 rollback_registered_many+0x1146/0x14a0 [ 42.729011][ T6791] Kernel panic - not syncing: panic_on_warn set ... [ 42.735837][ T6791] CPU: 1 PID: 6791 Comm: syz-executor643 Not tainted 5.8.0-rc3-syzkaller #0 [ 42.744685][ T6791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.754808][ T6791] Call Trace: [ 42.758087][ T6791] dump_stack+0x1f0/0x31e [ 42.762396][ T6791] panic+0x264/0x7a0 [ 42.766396][ T6791] ? __warn+0x102/0x250 [ 42.770568][ T6791] ? rollback_registered_many+0x1146/0x14a0 [ 42.776722][ T6791] ? rollback_registered_many+0x1146/0x14a0 [ 42.782722][ T6791] __warn+0x227/0x250 [ 42.787249][ T6791] ? rollback_registered_many+0x1146/0x14a0 [ 42.793168][ T6791] report_bug+0x1b1/0x2e0 [ 42.797560][ T6791] handle_bug+0x42/0x80 [ 42.801697][ T6791] exc_invalid_op+0x16/0x40 [ 42.806278][ T6791] asm_exc_invalid_op+0x12/0x20 [ 42.811120][ T6791] RIP: 0010:rollback_registered_many+0x1146/0x14a0 [ 42.817597][ T6791] Code: 4c 8d bc 24 90 00 00 00 e9 97 f6 ff ff e8 c2 c6 07 fb 0f 0b e9 e9 f6 ff ff e8 b6 c6 07 fb 0f 0b e9 1c ff ff ff e8 aa c6 07 fb <0f> 0b e9 70 ff ff ff e8 9e c6 07 fb 0f 0b e9 fc f7 ff ff e8 92 c6 [ 42.837185][ T6791] RSP: 0018:ffffc90000f871d8 EFLAGS: 00010293 [ 42.843233][ T6791] RAX: ffffffff866cb4a6 RBX: ffff88809482c0b8 RCX: ffff88809602c040 [ 42.851182][ T6791] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 42.859804][ T6791] RBP: ffff88809482c010 R08: ffffffff866cb3cd R09: fffffbfff12b74c1 [ 42.868138][ T6791] R10: fffffbfff12b74c1 R11: 0000000000000000 R12: dead000000000122 [ 42.876917][ T6791] R13: dffffc0000000000 R14: ffff88809482c068 R15: ffffc90000f872d0 [ 42.884891][ T6791] ? rollback_registered_many+0x106d/0x14a0 [ 42.890762][ T6791] ? rollback_registered_many+0x1146/0x14a0 [ 42.896704][ T6791] ? rollback_registered_many+0x1146/0x14a0 [ 42.902601][ T6791] unregister_netdevice_queue+0x2f3/0x4b0 [ 42.908678][ T6791] hsr_dev_finalize+0x4d4/0x6d0 [ 42.913513][ T6791] hsr_newlink+0x410/0x4c0 [ 42.917906][ T6791] rtnl_newlink+0x143e/0x1bf0 [ 42.922584][ T6791] ? __lock_acquire+0x116c/0x2c30 [ 42.927975][ T6791] ? __mutex_lock_common+0x582/0x2fc0 [ 42.933339][ T6791] ? trace_lock_release+0x137/0x1a0 [ 42.938689][ T6791] ? rtnetlink_rcv_msg+0x83c/0xd40 [ 42.943809][ T6791] ? lock_is_held_type+0x87/0xe0 [ 42.949163][ T6791] ? rtnl_setlink+0x490/0x490 [ 42.953830][ T6791] rtnetlink_rcv_msg+0x889/0xd40 [ 42.959511][ T6791] ? lock_acquire+0x160/0x720 [ 42.964179][ T6791] ? rcu_lock_acquire+0x5/0x30 [ 42.968946][ T6791] netlink_rcv_skb+0x190/0x3a0 [ 42.973757][ T6791] ? rtnetlink_bind+0x80/0x80 [ 42.978415][ T6791] netlink_unicast+0x786/0x940 [ 42.983163][ T6791] netlink_sendmsg+0xa57/0xd70 [ 42.987999][ T6791] ? netlink_getsockopt+0x9e0/0x9e0 [ 42.993176][ T6791] ____sys_sendmsg+0x519/0x800 [ 42.997934][ T6791] ? import_iovec+0x12a/0x2c0 [ 43.002633][ T6791] __sys_sendmsg+0x2b1/0x360 [ 43.007220][ T6791] ? _copy_to_user+0x100/0x140 [ 43.011970][ T6791] ? move_addr_to_user+0x17e/0x1e0 [ 43.017146][ T6791] ? __sys_getsockname+0x1e2/0x220 [ 43.022258][ T6791] ? check_preemption_disabled+0x51/0x140 [ 43.027956][ T6791] ? lock_is_held_type+0x87/0xe0 [ 43.033570][ T6791] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.039620][ T6791] do_syscall_64+0x73/0xe0 [ 43.044030][ T6791] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.049997][ T6791] RIP: 0033:0x440e29 [ 43.054125][ T6791] Code: Bad RIP value. [ 43.059843][ T6791] RSP: 002b:00007ffe7d619ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 43.068374][ T6791] RAX: ffffffffffffffda RBX: 00000000004a25f0 RCX: 0000000000440e29 [ 43.076486][ T6791] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 43.084452][ T6791] RBP: 00007ffe7d619ac0 R08: 0000000120080522 R09: 0000000120080522 [ 43.093034][ T6791] R10: 0000000120080522 R11: 0000000000000246 R12: 00000000004a25f0 [ 43.101105][ T6791] R13: 00000000004023c0 R14: 0000000000000000 R15: 0000000000000000 [ 43.112138][ T6791] Kernel Offset: disabled [ 43.116901][ T6791] Rebooting in 86400 seconds..