INIT: Id "5" respawning too fast: disabled for 5 minutes

INIT: Id "2" respawning too fast: disabled for 5 minutes

INIT: Id "6" respawning too fast: disabled for 5 minutes

INIT: Id "3" respawning too fast: disabled for 5 minutes

INIT: Id "1" respawning too fast: disabled for 5 minutes
[  427.458015] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts.
[  432.918715] random: sshd: uninitialized urandom read (32 bytes read)
executing program
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[  433.295034] random: crng init done
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INIT: Id "6" respawning too fast: disabled for 5 minutes

INIT: Id "1" respawning too fast: disabled for 5 minutes

INIT: Id "5" respawning too fast: disabled for 5 minutes

INIT: Id "2" respawning too fast: disabled for 5 minutes

INIT: Id "3" respawning too fast: disabled for 5 minutes

INIT: Id "4" respawning too fast: disabled for 5 minutes
[  613.713437] INFO: task syz-executor738:4050 blocked for more than 120 seconds.
[  613.720836]       Not tainted 4.9.98-g0e25e2c #15
[  613.726140] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  613.734290] syz-executor738 D29832  4050   3867 0x00000004
[  613.740195]  ffff8801d7203000 0000000000000000 ffff8801d7584a80 ffff8801d9bc9800
[  613.748512]  ffff8801db321b98 ffff8801d71078b8 ffffffff839e375d ffff8801d72038c8
[  613.756760]  ffffed003ae40718 ffff8801d7203000 00fffc0000000000 ffff8801db322468
[  613.765012] Call Trace:
[  613.767692]  [<ffffffff839e375d>] ? __schedule+0x64d/0x1bd0
[  613.774242]  [<ffffffff839e4d5f>] schedule+0x7f/0x1b0
[  613.779509]  [<ffffffff839e56e3>] schedule_preempt_disabled+0x13/0x20
[  613.786327]  [<ffffffff839e9b66>] mutex_lock_nested+0x326/0x870
[  613.792418]  [<ffffffff8212259d>] ? n_tty_receive_buf_common+0xcfd/0x2300
[  613.799612]  [<ffffffff839e9840>] ? mutex_trylock+0x3e0/0x3e0
[  613.805713]  [<ffffffff8211a49b>] ? commit_echoes+0xfb/0x1b0
[  613.811497]  [<ffffffff8212259d>] n_tty_receive_buf_common+0xcfd/0x2300
[  613.818588]  [<ffffffff82123c10>] n_tty_receive_buf+0x30/0x40
[  613.824711]  [<ffffffff8211402f>] tty_ioctl+0xc8f/0x2270
[  613.830147]  [<ffffffff821133a0>] ? no_tty+0xa0/0xa0
[  613.835579]  [<ffffffff81cf4a06>] ? avc_ss_reset+0x66/0x110
[  613.841313]  [<ffffffff812349d4>] ? __lock_acquire+0x654/0x4070
[  613.847806]  [<ffffffff811b9335>] ? __might_sleep+0x95/0x1a0
[  613.853795]  [<ffffffff821133a0>] ? no_tty+0xa0/0xa0
[  613.858901]  [<ffffffff815b051c>] do_vfs_ioctl+0x1ac/0x11a0
[  613.864828]  [<ffffffff815b0370>] ? ioctl_preallocate+0x220/0x220
[  613.871047]  [<ffffffff81d04b20>] ? selinux_capable+0x40/0x40
[  613.877154]  [<ffffffff815d333a>] ? __fget+0x20a/0x3b0
[  613.882433]  [<ffffffff815d3361>] ? __fget+0x231/0x3b0
[  613.887947]  [<ffffffff815d3177>] ? __fget+0x47/0x3b0
[  613.893125]  [<ffffffff81cedaff>] ? security_file_ioctl+0x8f/0xc0
[  613.899574]  [<ffffffff815b159f>] SyS_ioctl+0x8f/0xc0
[  613.905495]  [<ffffffff815b1510>] ? do_vfs_ioctl+0x11a0/0x11a0
[  613.911457]  [<ffffffff81006316>] do_syscall_64+0x1a6/0x490
[  613.917442]  [<ffffffff839f4653>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
[  613.924683] 
[  613.924683] Showing all locks held in the system:
[  613.930992] 2 locks held by khungtaskd/519:
[  613.935313]  #0:  (rcu_read_lock){......}, at: [<ffffffff813646ec>] watchdog+0x11c/0xa20
[  613.944757]  #1:  (tasklist_lock){.+.+..}, at: [<ffffffff81423ce0>] debug_show_all_locks+0x79/0x218
[  613.954491] 2 locks held by getty/3777:
[  613.958443]  #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff839f2802>] ldsem_down_read+0x32/0x40
[  613.967827]  #1:  (&ldata->atomic_read_lock){+.+...}, at: [<ffffffff8211ccf2>] n_tty_read+0x202/0x16e0
[  613.977776] 3 locks held by syz-executor738/4050:
[  613.982593]  #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff839f2802>] ldsem_down_read+0x32/0x40
[  613.991929]  #1:  (&o_tty->termios_rwsem/1){++++..}, at: [<ffffffff8212192b>] n_tty_receive_buf_common+0x8b/0x2300
[  614.003664]  #2:  (&ldata->output_lock){+.+...}, at: [<ffffffff8212259d>] n_tty_receive_buf_common+0xcfd/0x2300
[  614.014475] 
[  614.016081] =============================================
[  614.016081] 
[  614.025254] NMI backtrace for cpu 0
[  614.028881] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.98-g0e25e2c #15
[  614.036048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  614.045384]  ffff8801d85dfd08 ffffffff81eb0fc9 0000000000000000 0000000000000000
[  614.053424]  0000000000000000 0000000000000001 ffffffff810b7da0 ffff8801d85dfd40
[  614.061454]  ffffffff81ebc2c7 0000000000000000 0000000000000000 0000000000000003
[  614.069478] Call Trace:
[  614.072106]  [<ffffffff81eb0fc9>] dump_stack+0xc1/0x128
[  614.077479]  [<ffffffff810b7da0>] ? irq_force_complete_move+0x320/0x320
[  614.084235]  [<ffffffff81ebc2c7>] nmi_cpu_backtrace.cold.2+0x48/0x87
[  614.090709]  [<ffffffff810b7da0>] ? irq_force_complete_move+0x320/0x320
[  614.097447]  [<ffffffff81ebc25a>] nmi_trigger_cpumask_backtrace+0x12a/0x14f
[  614.104530]  [<ffffffff810b7ea4>] arch_trigger_cpumask_backtrace+0x14/0x20
[  614.111532]  [<ffffffff81364c84>] watchdog+0x6b4/0xa20
[  614.116795]  [<ffffffff813646ec>] ? watchdog+0x11c/0xa20
[  614.122266]  [<ffffffff8119ad5d>] kthread+0x26d/0x300
[  614.127449]  [<ffffffff813645d0>] ? reset_hung_task_detector+0x20/0x20
[  614.134102]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.139707]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.145314]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.150925]  [<ffffffff839f481c>] ret_from_fork+0x5c/0x70
[  614.156533] Sending NMI from CPU 0 to CPUs 1:
[  614.161361] NMI backtrace for cpu 1
[  614.164998] CPU: 1 PID: 3876 Comm: kworker/u4:3 Not tainted 4.9.98-g0e25e2c #15
[  614.172417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  614.181743] Workqueue: events_unbound flush_to_ldisc
c
[  614.186990] task: ffff8801d8158000 task.stack: ffff8801b5f60000
[  614.193018] RIP: 0010:[<ffffffff8135ca1a>] 
c [<ffffffff8135ca1a>] __sanitizer_cov_trace_pc+0x1a/0x50
[  614.202347] RSP: 0018:ffff8801b5f679c8  EFLAGS: 00000246
[  614.207766] RAX: ffff8801d8158000 RBX: ffffc90001033000 RCX: 0000000000000006
[  614.215014] RDX: 0000000000000000 RSI: ffffffff82118b88 RDI: ffffc90001034f1f
[  614.222257] RBP: ffff8801b5f679c8 R08: ffff8801d81589b0 R09: 0000000000000000
[  614.229501] R10: 0000000000000000 R11: 0000000000000000 R12: 000000097e254cc0
[  614.236747] R13: 000000000000310e R14: dffffc0000000000 R15: 000000097e254cc0
[  614.243999] FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[  614.252201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  614.258065] CR2: 00007fa603817000 CR3: 00000001cd8d7000 CR4: 00000000001606f0
[  614.265308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  614.272553] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  614.279794] Stack:
[  614.281913]  ffff8801b5f67a40
c ffffffff82118b9f
c ffff8801b5f67a18
c 0000000000000000
c
[  614.290118]  ffffc90001035278
c ffffed003ae338f5
c ffff8801d719c7ac
c ffffc90001033020
c
[  614.298329]  0000000000000900
c ffff8801d719c400
c ffffc90001035300
c ffffc90001033000
c
[  614.306526] Call Trace:
[  614.309081]  [<ffffffff82118b9f>] __process_echoes+0x5cf/0x780
[  614.315026]  [<ffffffff821225d4>] n_tty_receive_buf_common+0xd34/0x2300
[  614.321749]  [<ffffffff81233817>] ? mark_held_locks+0xc7/0x130
[  614.327696]  [<ffffffff81233c00>] ? trace_hardirqs_on_caller+0x380/0x590
[  614.334503]  [<ffffffff82123bd3>] n_tty_receive_buf2+0x33/0x40
[  614.340441]  [<ffffffff821296cf>] tty_ldisc_receive_buf+0xaf/0x190
[  614.346729]  [<ffffffff82123ba0>] ? n_tty_receive_buf_common+0x2300/0x2300
[  614.353710]  [<ffffffff8212a6d3>] flush_to_ldisc+0x253/0x370
[  614.359479]  [<ffffffff8122e3f2>] ? __lock_is_held+0xa2/0xf0
[  614.365249]  [<ffffffff8118ae31>] process_one_work+0x7e1/0x1500
[  614.371285]  [<ffffffff8118ad78>] ? process_one_work+0x728/0x1500
[  614.377485]  [<ffffffff8118a650>] ? pwq_dec_nr_in_flight+0x2e0/0x2e0
[  614.383955]  [<ffffffff8118bc26>] worker_thread+0xd6/0x10a0
[  614.389638]  [<ffffffff839e3765>] ? __schedule+0x655/0x1bd0
[  614.395318]  [<ffffffff8119ad5d>] kthread+0x26d/0x300
[  614.400478]  [<ffffffff8118bb50>] ? process_one_work+0x1500/0x1500
[  614.406765]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.412357]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.417952]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.423544]  [<ffffffff839f481c>] ret_from_fork+0x5c/0x70
[  614.429318] Code: 
cf9 
cfe 
cff 
cff 
c66 
c2e 
c0f 
c1f 
c84 
c00 
c00 
c00 
c00 
c00 
c0f 
c1f 
c00 
c55 
c48 
c89 
ce5 
c65 
c48 
c8b 
c04 
c25 
c40 
c7d 
c01 
c00 
c65 
c8b 
c15 
cbc 
cb2 
ccb 
c7e 
c81 
ce2 
c00 
c01 
c1f 
c00 
c<48> 
c8b 
c75 
c08 
c75 
c2b 
c8b 
c90 
c80 
c12 
c00 
c00 
c83 
cfa 
c02 
c75 
c20 
c48 
c8b 
c88 
c88 
c
[  614.462188] Kernel panic - not syncing: hung_task: blocked tasks
[  614.468343] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.98-g0e25e2c #15
[  614.475513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  614.484848]  ffff8801d85dfcc8 ffffffff81eb0fc9 ffffffff83c8b4e0 00000000ffffffff
[  614.492877]  0000000000000000 0000000000000000 dffffc0000000000 ffff8801d85dfd88
[  614.500912]  ffffffff8141f975 0000000041b58ab3 ffffffff843b86e8 ffffffff8141f7b6
[  614.508923] Call Trace:
[  614.511495]  [<ffffffff81eb0fc9>] dump_stack+0xc1/0x128
[  614.516841]  [<ffffffff8141f975>] panic+0x1bf/0x3bc
[  614.521841]  [<ffffffff8141f7b6>] ? add_taint.cold.6+0x16/0x16
[  614.527795]  [<ffffffff81003066>] ? ___preempt_schedule+0x16/0x18
[  614.534012]  [<ffffffff81ebc230>] ? nmi_trigger_cpumask_backtrace+0x100/0x14f
[  614.541270]  [<ffffffff81364c95>] watchdog+0x6c5/0xa20
[  614.546536]  [<ffffffff813646ec>] ? watchdog+0x11c/0xa20
[  614.551969]  [<ffffffff8119ad5d>] kthread+0x26d/0x300
[  614.557142]  [<ffffffff813645d0>] ? reset_hung_task_detector+0x20/0x20
[  614.563789]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.569393]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.575001]  [<ffffffff8119aaf0>] ? kthread_park+0xa0/0xa0
[  614.580607]  [<ffffffff839f481c>] ret_from_fork+0x5c/0x70
[  614.586720] Dumping ftrace buffer:
[  614.590274]    (ftrace buffer empty)
[  614.593958] Kernel Offset: disabled
[  614.597566] Rebooting in 86400 seconds..