[ 88.976044][ T27] audit: type=1800 audit(1583394366.645:26): pid=9584 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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. [ 89.779255][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 89.779267][ T27] audit: type=1800 audit(1583394367.465:29): pid=9584 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 [ 89.806894][ T27] audit: type=1800 audit(1583394367.465:30): pid=9584 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 '10.128.0.87' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 99.328881][ T9738] IPVS: ftp: loaded support on port[0] = 21 [ 99.360661][ T9739] ------------[ cut here ]------------ [ 99.366514][ T9739] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 99.375838][ T9739] WARNING: CPU: 0 PID: 9739 at lib/debugobjects.c:485 debug_print_object+0x168/0x250 [ 99.385298][ T9739] Kernel panic - not syncing: panic_on_warn set ... [ 99.391891][ T9739] CPU: 0 PID: 9739 Comm: syz-executor468 Not tainted 5.6.0-rc2-syzkaller #0 [ 99.400552][ T9739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.410752][ T9739] Call Trace: [ 99.414038][ T9739] dump_stack+0x197/0x210 [ 99.418361][ T9739] ? debug_print_object+0x160/0x250 [ 99.423568][ T9739] panic+0x2e3/0x75c [ 99.427594][ T9739] ? add_taint.cold+0x16/0x16 [ 99.432318][ T9739] ? __kasan_check_write+0x14/0x20 [ 99.437449][ T9739] ? __warn.cold+0x14/0x3e [ 99.441855][ T9739] ? __warn+0xd9/0x1cf [ 99.446097][ T9739] ? debug_print_object+0x168/0x250 [ 99.451298][ T9739] __warn.cold+0x2f/0x3e [ 99.455532][ T9739] ? debug_print_object+0x168/0x250 [ 99.460715][ T9739] report_bug+0x289/0x300 [ 99.465037][ T9739] do_error_trap+0x11b/0x200 [ 99.469617][ T9739] do_invalid_op+0x37/0x50 [ 99.474051][ T9739] ? debug_print_object+0x168/0x250 [ 99.479243][ T9739] invalid_op+0x23/0x30 [ 99.483390][ T9739] RIP: 0010:debug_print_object+0x168/0x250 [ 99.489179][ T9739] Code: dd 00 e2 91 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 00 e2 91 88 48 c7 c7 60 d7 91 88 e8 e7 ab 9f fd <0f> 0b 83 05 23 b5 ff 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 [ 99.508776][ T9739] RSP: 0018:ffffc900069cf0b0 EFLAGS: 00010286 [ 99.514836][ T9739] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 99.522805][ T9739] RDX: 0000000000000000 RSI: ffffffff815eae46 RDI: fffff52000d39e08 [ 99.530778][ T9739] RBP: ffffc900069cf0f0 R08: ffff8880a820a0c0 R09: ffffed1015d06659 [ 99.538735][ T9739] R10: ffffed1015d06658 R11: ffff8880ae8332c7 R12: 0000000000000001 [ 99.546701][ T9739] R13: ffffffff89bac120 R14: 0000000000000000 R15: 1ffff92000d39e24 [ 99.554708][ T9739] ? vprintk_func+0x86/0x189 [ 99.559310][ T9739] debug_object_activate+0x346/0x470 [ 99.564584][ T9739] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 99.570375][ T9739] ? debug_object_init_on_stack+0x20/0x20 [ 99.576074][ T9739] ? mark_lock+0xc2/0x1220 [ 99.580516][ T9739] ? find_held_lock+0x35/0x130 [ 99.585278][ T9739] ? delayed_work_timer_fn+0x90/0x90 [ 99.590546][ T9739] call_rcu+0x2f/0x700 [ 99.594619][ T9739] ? trace_hardirqs_on+0x67/0x240 [ 99.599647][ T9739] queue_rcu_work+0x8a/0xa0 [ 99.604154][ T9739] ? __route4_delete_filter+0xe0/0xe0 [ 99.609510][ T9739] tcf_queue_work+0xd3/0x110 [ 99.614102][ T9739] route4_change+0x19e8/0x2250 [ 99.618860][ T9739] ? route4_destroy+0x850/0x850 [ 99.623699][ T9739] ? __kasan_check_write+0x14/0x20 [ 99.628801][ T9739] ? wait_for_completion+0x440/0x440 [ 99.634072][ T9739] ? route4_destroy+0x850/0x850 [ 99.638922][ T9739] tc_new_tfilter+0xb82/0x2480 [ 99.643702][ T9739] ? tc_del_tfilter+0x1560/0x1560 [ 99.648713][ T9739] ? __kasan_check_read+0x11/0x20 [ 99.653739][ T9739] ? __lock_acquire+0x8a0/0x4a00 [ 99.658676][ T9739] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.665009][ T9739] ? rtnetlink_rcv_msg+0x7e3/0xaf0 [ 99.670163][ T9739] ? find_held_lock+0x35/0x130 [ 99.674954][ T9739] ? rcu_read_lock_held_common+0x130/0x130 [ 99.680858][ T9739] ? tc_del_tfilter+0x1560/0x1560 [ 99.686018][ T9739] ? __kasan_check_read+0x11/0x20 [ 99.691053][ T9739] ? tc_del_tfilter+0x1560/0x1560 [ 99.696064][ T9739] rtnetlink_rcv_msg+0x824/0xaf0 [ 99.700992][ T9739] ? rtnl_bridge_getlink+0x910/0x910 [ 99.706260][ T9739] ? lock_downgrade+0x920/0x920 [ 99.711099][ T9739] ? netlink_deliver_tap+0x226/0xbf0 [ 99.716368][ T9739] ? find_held_lock+0x35/0x130 [ 99.721697][ T9739] netlink_rcv_skb+0x177/0x450 [ 99.726451][ T9739] ? rtnl_bridge_getlink+0x910/0x910 [ 99.731737][ T9739] ? netlink_ack+0xb50/0xb50 [ 99.736320][ T9739] ? __kasan_check_read+0x11/0x20 [ 99.741343][ T9739] ? netlink_deliver_tap+0x248/0xbf0 [ 99.746717][ T9739] rtnetlink_rcv+0x1d/0x30 [ 99.751171][ T9739] netlink_unicast+0x59e/0x7e0 [ 99.755953][ T9739] ? netlink_attachskb+0x870/0x870 [ 99.761068][ T9739] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 99.766784][ T9739] ? __check_object_size+0x3d/0x437 [ 99.771985][ T9739] netlink_sendmsg+0x91c/0xea0 [ 99.776767][ T9739] ? netlink_unicast+0x7e0/0x7e0 [ 99.781688][ T9739] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 99.787219][ T9739] ? apparmor_socket_sendmsg+0x2a/0x30 [ 99.792662][ T9739] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.798900][ T9739] ? security_socket_sendmsg+0x8d/0xc0 [ 99.804362][ T9739] ? netlink_unicast+0x7e0/0x7e0 [ 99.809306][ T9739] sock_sendmsg+0xd7/0x130 [ 99.813726][ T9739] ____sys_sendmsg+0x753/0x880 [ 99.818495][ T9739] ? kernel_sendmsg+0x50/0x50 [ 99.823162][ T9739] ? __fget_files+0x337/0x520 [ 99.827826][ T9739] ? find_held_lock+0x35/0x130 [ 99.832714][ T9739] ___sys_sendmsg+0x100/0x170 [ 99.837444][ T9739] ? sendmsg_copy_msghdr+0x70/0x70 [ 99.842548][ T9739] ? __kasan_check_read+0x11/0x20 [ 99.847724][ T9739] ? __fget_files+0x359/0x520 [ 99.852402][ T9739] ? ksys_dup3+0x3e0/0x3e0 [ 99.856814][ T9739] ? __fget_light+0x1ad/0x270 [ 99.861562][ T9739] ? __fdget+0x1b/0x20 [ 99.865614][ T9739] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.871848][ T9739] __sys_sendmsg+0x105/0x1d0 [ 99.876422][ T9739] ? __sys_sendmsg_sock+0xc0/0xc0 [ 99.881571][ T9739] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 99.887679][ T9739] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 99.893185][ T9739] ? do_syscall_64+0x26/0x790 [ 99.897863][ T9739] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.903917][ T9739] ? do_syscall_64+0x26/0x790 [ 99.908642][ T9739] __x64_sys_sendmsg+0x78/0xb0 [ 99.913402][ T9739] do_syscall_64+0xfa/0x790 [ 99.917989][ T9739] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.924005][ T9739] RIP: 0033:0x446709 [ 99.927887][ T9739] 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 [ 99.947537][ T9739] RSP: 002b:00007f8ee8d7cd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 99.955994][ T9739] RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 0000000000446709 [ 99.964021][ T9739] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 99.972017][ T9739] RBP: 00000000006dbc60 R08: 0000000000000000 R09: 0000000000000000 [ 99.980139][ T9739] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c [ 99.988127][ T9739] R13: 0000000000000005 R14: 00a3a20740000000 R15: 0507002400000038 [ 99.997820][ T9739] Kernel Offset: disabled [ 100.002229][ T9739] Rebooting in 86400 seconds..