[ 89.191075][ T27] audit: type=1800 audit(1584404962.535:27): pid=10036 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 89.242590][ T27] audit: type=1800 audit(1584404962.535:28): pid=10036 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 90.291829][ T27] audit: type=1800 audit(1584404963.725:29): pid=10036 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 90.339132][ T27] audit: type=1800 audit(1584404963.725:30): pid=10036 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.60' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 101.826271][T10189] IPVS: ftp: loaded support on port[0] = 21 [ 101.867176][T10190] ------------[ cut here ]------------ [ 101.873833][T10190] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 101.884196][T10190] WARNING: CPU: 1 PID: 10190 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 101.894206][T10190] Kernel panic - not syncing: panic_on_warn set ... [ 101.901427][T10190] CPU: 1 PID: 10190 Comm: syz-executor054 Not tainted 5.6.0-rc5-syzkaller #0 [ 101.912242][T10190] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.924806][T10190] Call Trace: [ 101.928900][T10190] dump_stack+0x188/0x20d [ 101.933988][T10190] ? debug_print_object+0x80/0x250 [ 101.940070][T10190] panic+0x2e3/0x75c [ 101.946270][T10190] ? add_taint.cold+0x16/0x16 [ 101.952473][T10190] ? __probe_kernel_read+0x188/0x1d0 [ 101.958101][T10190] ? __warn.cold+0x14/0x35 [ 101.963203][T10190] ? __warn+0xd5/0x1c8 [ 101.967366][T10190] ? debug_print_object+0x160/0x250 [ 101.972750][T10190] __warn.cold+0x2f/0x35 [ 101.977488][T10190] ? debug_print_object+0x160/0x250 [ 101.982970][T10190] report_bug+0x27b/0x2f0 [ 101.988004][T10190] do_error_trap+0x12b/0x220 [ 101.992623][T10190] ? debug_print_object+0x160/0x250 [ 101.997934][T10190] do_invalid_op+0x32/0x40 [ 102.004040][T10190] ? debug_print_object+0x160/0x250 [ 102.011825][T10190] invalid_op+0x23/0x30 [ 102.016207][T10190] RIP: 0010:debug_print_object+0x160/0x250 [ 102.022126][T10190] Code: dd c0 fa 51 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd c0 fa 51 88 48 c7 c7 20 f0 51 88 e8 a8 bd b1 fd <0f> 0b 83 05 8b cf d3 06 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 102.045084][T10190] RSP: 0018:ffffc90002027178 EFLAGS: 00010282 [ 102.052087][T10190] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 102.060412][T10190] RDX: 0000000000000000 RSI: ffffffff815bfe61 RDI: fffff52000404e21 [ 102.068560][T10190] RBP: 0000000000000001 R08: ffff8880997ee5c0 R09: ffffed1015ce6659 [ 102.076732][T10190] R10: ffffed1015ce6658 R11: ffff8880ae7332c7 R12: ffffffff897acba0 [ 102.085134][T10190] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000404e3c [ 102.095425][T10190] ? vprintk_func+0x81/0x17e [ 102.101110][T10190] ? debug_print_object+0x160/0x250 [ 102.106586][T10190] ? lockdep_hardirqs_on+0x417/0x5d0 [ 102.112114][T10190] debug_object_activate+0x346/0x470 [ 102.118190][T10190] ? _raw_spin_unlock_irqrestore+0x9b/0xe0 [ 102.125390][T10190] ? debug_object_init_on_stack+0x20/0x20 [ 102.132712][T10190] ? find_held_lock+0x2d/0x110 [ 102.138835][T10190] ? free_object+0x70/0x70 [ 102.144813][T10190] ? lock_downgrade+0x7f0/0x7f0 [ 102.151843][T10190] ? delayed_work_timer_fn+0x90/0x90 [ 102.157653][T10190] call_rcu+0x2c/0x690 [ 102.162335][T10190] queue_rcu_work+0x82/0xa0 [ 102.167600][T10190] route4_change+0x19e8/0x2250 [ 102.173055][T10190] ? route4_destroy+0x800/0x800 [ 102.178412][T10190] ? wait_for_completion+0x3c0/0x3c0 [ 102.185471][T10190] tc_new_tfilter+0xa59/0x20b0 [ 102.191693][T10190] ? route4_destroy+0x800/0x800 [ 102.198103][T10190] ? tc_del_tfilter+0x1430/0x1430 [ 102.203887][T10190] ? __lock_acquire+0x80b/0x3ca0 [ 102.211744][T10190] ? apparmor_capable+0x454/0x8a0 [ 102.217658][T10190] ? rcu_read_lock_held+0x9c/0xb0 [ 102.225411][T10190] ? tc_del_tfilter+0x1430/0x1430 [ 102.232395][T10190] rtnetlink_rcv_msg+0x810/0xad0 [ 102.237799][T10190] ? rtnl_bridge_getlink+0x870/0x870 [ 102.244977][T10190] ? mark_held_locks+0xe0/0xe0 [ 102.252495][T10190] ? netlink_deliver_tap+0x146/0xb50 [ 102.261042][T10190] netlink_rcv_skb+0x15a/0x410 [ 102.266601][T10190] ? rtnl_bridge_getlink+0x870/0x870 [ 102.273798][T10190] ? netlink_ack+0xa80/0xa80 [ 102.279991][T10190] netlink_unicast+0x537/0x740 [ 102.285490][T10190] ? netlink_attachskb+0x810/0x810 [ 102.291187][T10190] ? _copy_from_iter_full+0x25c/0x870 [ 102.297022][T10190] ? __phys_addr_symbol+0x2c/0x70 [ 102.304064][T10190] ? __check_object_size+0x171/0x437 [ 102.309934][T10190] netlink_sendmsg+0x882/0xe10 [ 102.314845][T10190] ? aa_af_perm+0x260/0x260 [ 102.320812][T10190] ? netlink_unicast+0x740/0x740 [ 102.327494][T10190] ? netlink_unicast+0x740/0x740 [ 102.334071][T10190] sock_sendmsg+0xcf/0x120 [ 102.338920][T10190] ____sys_sendmsg+0x6b9/0x7d0 [ 102.343860][T10190] ? kernel_sendmsg+0x50/0x50 [ 102.348930][T10190] ___sys_sendmsg+0x100/0x170 [ 102.354876][T10190] ? sendmsg_copy_msghdr+0x70/0x70 [ 102.361858][T10190] ? __fget_files+0x329/0x4f0 [ 102.368156][T10190] ? ksys_dup3+0x3c0/0x3c0 [ 102.373189][T10190] ? __fget_light+0x208/0x270 [ 102.379534][T10190] __sys_sendmsg+0xec/0x1b0 [ 102.384510][T10190] ? __sys_sendmsg_sock+0xb0/0xb0 [ 102.389835][T10190] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 102.397513][T10190] ? __x64_sys_futex+0x380/0x4f0 [ 102.403907][T10190] ? trace_hardirqs_off_caller+0x55/0x230 [ 102.410299][T10190] ? do_syscall_64+0x21/0x7d0 [ 102.415873][T10190] do_syscall_64+0xf6/0x7d0 [ 102.422146][T10190] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.430569][T10190] RIP: 0033:0x4466c9 [ 102.438305][T10190] Code: e8 1c ba 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 ab 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 102.465797][T10190] RSP: 002b:00007f0ef2e48d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 102.478989][T10190] RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 00000000004466c9 [ 102.492439][T10190] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 102.501483][T10190] RBP: 00000000006dbc60 R08: 0000000000000000 R09: 0000000000000000 [ 102.510909][T10190] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c [ 102.522624][T10190] R13: 0000000000000005 R14: 00a3a20740000000 R15: 0507002400000038 [ 102.533033][T10190] Kernel Offset: disabled [ 102.540109][T10190] Rebooting in 86400 seconds..