Warning: Permanently added '10.128.1.35' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  717.679917] INFO: task syz-executor889:8128 blocked for more than 140 seconds.
[  717.687461]       Not tainted 4.19.200-syzkaller #0
[  717.692798] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  717.701072] syz-executor889 D28640  8128   8127 0x00000004
[  717.706691] Call Trace:
[  717.709263]  __schedule+0x887/0x2040
[  717.713056]  ? io_schedule_timeout+0x140/0x140
[  717.717670]  ? mark_held_locks+0xf0/0xf0
[  717.721808]  ? trace_hardirqs_off+0x64/0x200
[  717.726225]  schedule+0x8d/0x1b0
[  717.729579]  schedule_timeout+0x92d/0xfe0
[  717.734393]  ? _raw_spin_unlock_irqrestore+0x66/0xe0
[  717.739515]  ? usleep_range+0x170/0x170
[  717.743552]  ? wait_for_common+0x294/0x470
[  717.747785]  ? mark_held_locks+0xa6/0xf0
[  717.751920]  ? _raw_spin_unlock_irq+0x24/0x80
[  717.756413]  wait_for_common+0x29c/0x470
[  717.760540]  ? bit_wait_io_timeout+0x100/0x100
[  717.765123]  ? padata_do_parallel+0x4ff/0x700
[  717.769686]  ? __local_bh_enable_ip+0x159/0x270
[  717.774401]  ? wake_up_q+0xe0/0xe0
[  717.777954]  ? pcrypt_aead_encrypt+0x36a/0x450
[  717.782622]  tls_push_record+0xec4/0x1370
[  717.786785]  tls_sw_sendpage+0x8c6/0xd00
[  717.790891]  ? tls_sw_sendmsg+0x1210/0x1210
[  717.795226]  ? tls_sw_sendmsg+0x1210/0x1210
[  717.799869]  inet_sendpage+0x164/0x650
[  717.803937]  ? inet_accept+0x770/0x770
[  717.807816]  sock_sendpage+0xdf/0x140
[  717.811683]  pipe_to_sendpage+0x268/0x330
[  717.815836]  ? sockfs_setattr+0x160/0x160
[  717.820060]  ? direct_splice_actor+0x160/0x160
[  717.824642]  ? splice_from_pipe_next.part.0+0x2ad/0x360
[  717.830060]  __splice_from_pipe+0x389/0x800
[  717.834386]  ? direct_splice_actor+0x160/0x160
[  717.839077]  generic_splice_sendpage+0xd4/0x140
[  717.843843]  ? __splice_from_pipe+0x800/0x800
[  717.848342]  ? security_file_permission+0x1c0/0x220
[  717.853444]  ? __splice_from_pipe+0x800/0x800
[  717.858022]  __se_sys_splice+0xfe7/0x16d0
[  717.862925]  ? kernel_accept+0x310/0x310
[  717.867005]  ? lockdep_hardirqs_on+0x3a8/0x5c0
[  717.871891]  ? __se_sys_tee+0xb90/0xb90
[  717.875875]  ? trace_hardirqs_off_caller+0x6e/0x210
[  717.881230]  ? do_syscall_64+0x21/0x620
[  717.885209]  do_syscall_64+0xf9/0x620
[  717.888996]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  717.894555] RIP: 0033:0x43fd99
[  717.897749] Code: Bad RIP value.
[  717.901465] RSP: 002b:00007ffe13431268 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
[  717.909177] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043fd99
[  717.916869] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004
[  717.924377] RBP: 0000000000000000 R08: 0000000100000000 R09: 0000000000000000
[  717.931895] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403620
[  717.939169] R13: 431bde82d7b634db R14: 00000000004ae018 R15: 0000000000400488
[  717.946813] 
[  717.946813] Showing all locks held in the system:
[  717.953264] 1 lock held by khungtaskd/1570:
[  717.957721]  #0: 0000000095b5f741 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265
[  717.966491] 2 locks held by syz-executor889/8128:
[  717.971394]  #0: 000000004b3e5d54 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x63/0x80
[  717.979030]  #1: 00000000a3973004 (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x151/0xd00
[  717.987608] 
[  717.989252] =============================================
[  717.989252] 
[  717.996448] NMI backtrace for cpu 0
[  718.000152] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.200-syzkaller #0
[  718.007600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  718.017027] Call Trace:
[  718.019602]  dump_stack+0x1fc/0x2ef
[  718.023217]  nmi_cpu_backtrace.cold+0x63/0xa2
[  718.027699]  ? lapic_can_unplug_cpu+0x80/0x80
[  718.032184]  nmi_trigger_cpumask_backtrace+0x1a6/0x1f0
[  718.037458]  watchdog+0x991/0xe60
[  718.040895]  ? reset_hung_task_detector+0x30/0x30
[  718.045731]  kthread+0x33f/0x460
[  718.049087]  ? kthread_park+0x180/0x180
[  718.053056]  ret_from_fork+0x24/0x30
[  718.057313] Sending NMI from CPU 0 to CPUs 1:
[  718.061913] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10
[  718.062858] Kernel panic - not syncing: hung_task: blocked tasks
[  718.075617] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.200-syzkaller #0
[  718.083041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  718.092372] Call Trace:
[  718.094943]  dump_stack+0x1fc/0x2ef
[  718.098555]  panic+0x26a/0x50e
[  718.101740]  ? __warn_printk+0xf3/0xf3
[  718.105605]  ? _raw_spin_unlock_irqrestore+0x79/0xe0
[  718.110689]  ? cpumask_next+0x3c/0x40
[  718.114470]  ? printk_safe_flush+0xd6/0x120
[  718.118772]  ? watchdog+0x991/0xe60
[  718.122379]  ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0
[  718.127809]  watchdog+0x9a2/0xe60
[  718.131245]  ? reset_hung_task_detector+0x30/0x30
[  718.136068]  kthread+0x33f/0x460
[  718.139416]  ? kthread_park+0x180/0x180
[  718.143369]  ret_from_fork+0x24/0x30
[  718.148759] Kernel Offset: disabled
[  718.152392] Rebooting in 86400 seconds..