Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts.
executing program
[ 492.410469][ T3644] nbd0: detected capacity change from 0 to 128
[ 492.530766][ T3641] block nbd0: shutting down sockets
[ 522.958487][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 30 seconds
[ 552.488578][ T2976] udevd[2976]: worker [3643] /devices/virtual/block/nbd0 is taking a long time
[ 553.038469][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 60 seconds
[ 583.118504][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 90 seconds
[ 613.198453][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 120 seconds
[ 643.278465][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 150 seconds
executing program
[ 672.640121][ T2976] udevd[2976]: worker [3643] /devices/virtual/block/nbd0 timeout; kill it
[ 672.649405][ T3643] ldm_validate_partition_table(): Disk read failed.
[ 672.649480][ T2976] udevd[2976]: seq 7491 '/devices/virtual/block/nbd0' killed
[ 672.656097][ T3643] Dev nbd0: unable to read RDB block 0
[ 672.669018][ T3643] nbd0: unable to read partition table
[ 672.674661][ T3643] nbd0: partition table beyond EOD, truncated
[ 672.687174][ T2976] udevd[2976]: worker [3643] terminated by signal 9 (Killed)
[ 672.694629][ T2976] udevd[2976]: worker [3643] failed while handling '/devices/virtual/block/nbd0'
[ 673.358364][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 180 seconds
[ 703.438504][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 210 seconds
[ 733.518396][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 240 seconds
[ 763.598409][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 270 seconds
[ 793.678407][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 300 seconds
[ 823.758411][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 330 seconds
[ 853.838381][ T9] block nbd0: Possible stuck request ffff88801e638000: control (read@0,4096B). Runtime 360 seconds
[ 859.598354][ T28] INFO: task syz-executor184:3652 blocked for more than 143 seconds.
[ 859.606519][ T28] Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
[ 859.613685][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.622546][ T28] task:syz-executor184 state:D stack:28120 pid:3652 ppid:3639 flags:0x00000004
[ 859.631993][ T28] Call Trace:
[ 859.635276][ T28]
[ 859.638249][ T28] __schedule+0xadf/0x52b0
[ 859.642817][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.648103][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.654001][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 859.659856][ T28] schedule+0xda/0x1b0
[ 859.663943][ T28] blk_mq_freeze_queue_wait+0x112/0x160
[ 859.669643][ T28] ? blk_mq_queue_inflight+0xa0/0xa0
[ 859.674949][ T28] ? blk_mq_run_hw_queue+0x490/0x490
[ 859.680366][ T28] ? prepare_to_wait_exclusive+0x2b0/0x2b0
[ 859.686198][ T28] nbd_add_socket+0x166/0x810
[ 859.691003][ T28] ? apparmor_capable+0x1d8/0x460
[ 859.696101][ T28] ? nbd_alloc_config.part.0+0x180/0x180
[ 859.701777][ T28] ? bpf_lsm_capable+0x5/0x10
[ 859.706484][ T28] ? security_capable+0x8f/0xc0
[ 859.711483][ T28] nbd_ioctl+0x4ab/0xbd0
[ 859.715769][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 859.720587][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.725653][ T28] ? __ct_user_exit+0xff/0x150
[ 859.730654][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 859.735631][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.741007][ T28] blkdev_ioctl+0x36e/0x800
[ 859.745625][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.751137][ T28] ? bpf_lsm_file_ioctl+0x5/0x10
[ 859.756090][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.761665][ T28] __x64_sys_ioctl+0x193/0x200
[ 859.766454][ T28] do_syscall_64+0x35/0xb0
[ 859.770946][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 859.776856][ T28] RIP: 0033:0x7fd2632b1ee9
[ 859.781324][ T28] RSP: 002b:00007fd26325f308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 859.789784][ T28] RAX: ffffffffffffffda RBX: 00007fd263335408 RCX: 00007fd2632b1ee9
[ 859.797754][ T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
[ 859.805760][ T28] RBP: 00007fd263335400 R08: 0000000000000000 R09: 0000000000000000
[ 859.813764][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd26333540c
[ 859.821905][ T28] R13: 00007fd263303074 R14: 64626e2f7665642f R15: 0000000000022000
[ 859.830017][ T28]
[ 859.833066][ T28] INFO: task syz-executor184:3653 blocked for more than 143 seconds.
[ 859.841164][ T28] Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
[ 859.848257][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.856944][ T28] task:syz-executor184 state:D stack:28864 pid:3653 ppid:3639 flags:0x00000004
[ 859.866314][ T28] Call Trace:
[ 859.869642][ T28]
[ 859.872607][ T28] __schedule+0xadf/0x52b0
[ 859.877038][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.882393][ T28] schedule+0xda/0x1b0
[ 859.886488][ T28] schedule_preempt_disabled+0xf/0x20
[ 859.891925][ T28] __mutex_lock+0xa44/0x1350
[ 859.896536][ T28] ? nbd_ioctl+0x151/0xbd0
[ 859.900993][ T28] ? mutex_lock_io_nested+0x1190/0x1190
[ 859.906581][ T28] ? tomoyo_execute_permission+0x4a0/0x4a0
[ 859.912446][ T28] ? bpf_lsm_capable+0x5/0x10
[ 859.917150][ T28] ? security_capable+0x8f/0xc0
[ 859.922067][ T28] nbd_ioctl+0x151/0xbd0
[ 859.926333][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 859.931308][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.936457][ T28] ? __ct_user_exit+0xff/0x150
[ 859.941258][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 859.946126][ T28] ? nbd_start_device+0xc30/0xc30
[ 859.951206][ T28] blkdev_ioctl+0x36e/0x800
[ 859.955728][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.961232][ T28] ? bpf_lsm_file_ioctl+0x5/0x10
[ 859.966198][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 859.971699][ T28] __x64_sys_ioctl+0x193/0x200
[ 859.976479][ T28] do_syscall_64+0x35/0xb0
[ 859.980935][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 859.986847][ T28] RIP: 0033:0x7fd2632b1ee9
[ 859.991321][ T28] RSP: 002b:00007fd26323e308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 859.999855][ T28] RAX: ffffffffffffffda RBX: 00007fd263335418 RCX: 00007fd2632b1ee9
[ 860.007935][ T28] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 860.015964][ T28] RBP: 00007fd263335410 R08: 00007fd26323e700 R09: 0000000000000000
[ 860.023976][ T28] R10: 00007fd26323e700 R11: 0000000000000246 R12: 00007fd26333541c
[ 860.032077][ T28] R13: 00007fd263303074 R14: 64626e2f7665642f R15: 0000000000022000
[ 860.040186][ T28]
[ 860.043199][ T28] INFO: task syz-executor184:3654 blocked for more than 143 seconds.
[ 860.051286][ T28] Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
[ 860.058335][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 860.066985][ T28] task:syz-executor184 state:D stack:29536 pid:3654 ppid:3639 flags:0x00000004
[ 860.076318][ T28] Call Trace:
[ 860.079621][ T28]
[ 860.082567][ T28] __schedule+0xadf/0x52b0
[ 860.087094][ T28] ? io_schedule_timeout+0x140/0x140
[ 860.092442][ T28] schedule+0xda/0x1b0
[ 860.096563][ T28] schedule_preempt_disabled+0xf/0x20
[ 860.101996][ T28] __mutex_lock+0xa44/0x1350
[ 860.106636][ T28] ? nbd_ioctl+0x151/0xbd0
[ 860.111128][ T28] ? mutex_lock_io_nested+0x1190/0x1190
[ 860.116713][ T28] ? tomoyo_execute_permission+0x4a0/0x4a0
[ 860.122604][ T28] ? bpf_lsm_capable+0x5/0x10
[ 860.127316][ T28] ? security_capable+0x8f/0xc0
[ 860.132314][ T28] nbd_ioctl+0x151/0xbd0
[ 860.136592][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 860.141415][ T28] ? nbd_start_device+0xc30/0xc30
[ 860.146467][ T28] ? __ct_user_exit+0xff/0x150
[ 860.151349][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 860.156217][ T28] ? nbd_start_device+0xc30/0xc30
[ 860.161286][ T28] blkdev_ioctl+0x36e/0x800
[ 860.165811][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 860.171319][ T28] ? bpf_lsm_file_ioctl+0x5/0x10
[ 860.176278][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 860.181781][ T28] __x64_sys_ioctl+0x193/0x200
[ 860.186564][ T28] do_syscall_64+0x35/0xb0
[ 860.191033][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.196961][ T28] RIP: 0033:0x7fd2632b1ee9
[ 860.201411][ T28] RSP: 002b:00007fd26321d308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 860.209860][ T28] RAX: ffffffffffffffda RBX: 00007fd263335428 RCX: 00007fd2632b1ee9
[ 860.217827][ T28] RDX: 0000000000000040 RSI: 000000000000ab07 RDI: 0000000000000003
[ 860.225846][ T28] RBP: 00007fd263335420 R08: 00007fd26321d700 R09: 0000000000000000
[ 860.233854][ T28] R10: 00007fd26321d700 R11: 0000000000000246 R12: 00007fd26333542c
[ 860.241962][ T28] R13: 00007fd263303074 R14: 64626e2f7665642f R15: 0000000000022000
[ 860.250045][ T28]
[ 860.253245][ T28]
[ 860.253245][ T28] Showing all threads with locks held in the system:
[ 860.262131][ T28] task:rcu_tasks_kthre state:I stack:29096 pid:12 ppid:2 flags:0x00004000
[ 860.271397][ T28] Call Trace:
[ 860.274681][ T28]
[ 860.277623][ T28] __schedule+0xadf/0x52b0
[ 860.282094][ T28] ? find_held_lock+0x2d/0x110
[ 860.286882][ T28] ? rcu_tasks_one_gp+0x6f5/0xc70
[ 860.291953][ T28] ? io_schedule_timeout+0x140/0x140
[ 860.297282][ T28] ? mark_held_locks+0x9f/0xe0
[ 860.302087][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 860.307931][ T28] schedule+0xda/0x1b0
[ 860.312059][ T28] rcu_tasks_one_gp+0x3e5/0xc70
[ 860.316943][ T28] rcu_tasks_kthread+0x73/0xa0
[ 860.321771][ T28] ? synchronize_rcu_tasks_trace+0x60/0x60
[ 860.327620][ T28] kthread+0x2e4/0x3a0
[ 860.331840][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.337611][ T28] ret_from_fork+0x1f/0x30
[ 860.342096][ T28]
[ 860.345123][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 860.350460][ T28] #0: ffffffff8bf88f30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.361032][ T28] task:rcu_tasks_trace state:I stack:29120 pid:13 ppid:2 flags:0x00004000
[ 860.370302][ T28] Call Trace:
[ 860.373588][ T28]
[ 860.376513][ T28] __schedule+0xadf/0x52b0
[ 860.380993][ T28] ? find_held_lock+0x2d/0x110
[ 860.385793][ T28] ? rcu_tasks_one_gp+0x6f5/0xc70
[ 860.390923][ T28] ? io_schedule_timeout+0x140/0x140
[ 860.396248][ T28] ? mark_held_locks+0x9f/0xe0
[ 860.401097][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 860.406983][ T28] schedule+0xda/0x1b0
[ 860.411109][ T28] rcu_tasks_one_gp+0x3e5/0xc70
[ 860.416023][ T28] rcu_tasks_kthread+0x73/0xa0
[ 860.420845][ T28] ? synchronize_rcu_tasks_trace+0x60/0x60
[ 860.426702][ T28] kthread+0x2e4/0x3a0
[ 860.430840][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.436494][ T28] ret_from_fork+0x1f/0x30
[ 860.440995][ T28]
[ 860.444035][ T28] 1 lock held by rcu_tasks_trace/13:
[ 860.449371][ T28] #0: ffffffff8bf88c30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.460508][ T28] task:getty state:S stack:23392 pid:3296 ppid:1 flags:0x00000000
[ 860.469926][ T28] Call Trace:
[ 860.473233][ T28]
[ 860.476167][ T28] __schedule+0xadf/0x52b0
[ 860.480760][ T28] ? io_schedule_timeout+0x140/0x140
[ 860.486186][ T28] schedule+0xda/0x1b0
[ 860.490313][ T28] schedule_timeout+0x1db/0x2a0
[ 860.495212][ T28] ? usleep_range_state+0x1b0/0x1b0
[ 860.500467][ T28] ? __up_read+0x192/0x720
[ 860.505003][ T28] ? down_read+0x198/0x450
[ 860.509486][ T28] ? up_write+0x470/0x470
[ 860.513853][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 860.519731][ T28] wait_woken+0x18b/0x1f0
[ 860.524112][ T28] n_tty_read+0x1051/0x13e0
[ 860.528780][ T28] ? n_tty_open+0x170/0x170
[ 860.533327][ T28] ? __init_waitqueue_head+0x150/0x150
[ 860.538860][ T28] tty_read+0x33a/0x5d0
[ 860.543039][ T28] ? do_SAK+0x70/0x70
[ 860.547019][ T28] ? fsnotify_perm.part.0+0x221/0x610
[ 860.552462][ T28] ? apparmor_file_permission+0x264/0x4e0
[ 860.558247][ T28] ? security_file_permission+0xab/0xd0
[ 860.563811][ T28] vfs_read+0x67d/0x930
[ 860.567977][ T28] ? kernel_read+0x1c0/0x1c0
[ 860.572617][ T28] ? __ct_user_exit+0xff/0x150
[ 860.577410][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 860.582307][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 860.587173][ T28] ? __fget_light+0x20a/0x270
[ 860.591902][ T28] ksys_read+0x127/0x250
[ 860.596164][ T28] ? vfs_write+0xdd0/0xdd0
[ 860.600617][ T28] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.606539][ T28] do_syscall_64+0x35/0xb0
[ 860.611016][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.616927][ T28] RIP: 0033:0x7fd49e0ea8fe
[ 860.621372][ T28] RSP: 002b:00007ffed6cc5c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 860.629825][ T28] RAX: ffffffffffffffda RBX: 00005605fb242910 RCX: 00007fd49e0ea8fe
[ 860.637802][ T28] RDX: 0000000000000001 RSI: 00007ffed6cc5c60 RDI: 0000000000000000
[ 860.645887][ T28] RBP: 00005605fb242970 R08: 0000000000000007 R09: 00005605fb243cd0
[ 860.653921][ T28] R10: 0000000000000063 R11: 0000000000000246 R12: 00005605fb2429ac
[ 860.661974][ T28] R13: 00007ffed6cc5c60 R14: 0000000000000000 R15: 00005605fb2429ac
[ 860.670046][ T28]
[ 860.673087][ T28] 2 locks held by getty/3296:
[ 860.677759][ T28] #0: ffff888144ba9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 860.687550][ T28] #1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0
[ 860.697730][ T28] task:syz-executor184 state:D stack:28120 pid:3652 ppid:3639 flags:0x00000004
[ 860.706978][ T28] Call Trace:
[ 860.710281][ T28]
[ 860.713206][ T28] __schedule+0xadf/0x52b0
[ 860.717631][ T28] ? io_schedule_timeout+0x140/0x140
[ 860.722961][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 860.728811][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 860.734623][ T28] schedule+0xda/0x1b0
[ 860.738733][ T28] blk_mq_freeze_queue_wait+0x112/0x160
[ 860.744320][ T28] ? blk_mq_queue_inflight+0xa0/0xa0
[ 860.749660][ T28] ? blk_mq_run_hw_queue+0x490/0x490
[ 860.754985][ T28] ? prepare_to_wait_exclusive+0x2b0/0x2b0
[ 860.760861][ T28] nbd_add_socket+0x166/0x810
[ 860.765558][ T28] ? apparmor_capable+0x1d8/0x460
[ 860.770659][ T28] ? nbd_alloc_config.part.0+0x180/0x180
[ 860.776314][ T28] ? bpf_lsm_capable+0x5/0x10
[ 860.781048][ T28] ? security_capable+0x8f/0xc0
[ 860.785932][ T28] nbd_ioctl+0x4ab/0xbd0
[ 860.790250][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 860.795041][ T28] ? nbd_start_device+0xc30/0xc30
[ 860.800145][ T28] ? __ct_user_exit+0xff/0x150
[ 860.804935][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 860.809843][ T28] ? nbd_start_device+0xc30/0xc30
[ 860.814890][ T28] blkdev_ioctl+0x36e/0x800
[ 860.819435][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 860.824917][ T28] ? bpf_lsm_file_ioctl+0x5/0x10
[ 860.829897][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 860.835382][ T28] __x64_sys_ioctl+0x193/0x200
[ 860.840216][ T28] do_syscall_64+0x35/0xb0
[ 860.844677][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.850617][ T28] RIP: 0033:0x7fd2632b1ee9
[ 860.855041][ T28] RSP: 002b:00007fd26325f308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 860.863487][ T28] RAX: ffffffffffffffda RBX: 00007fd263335408 RCX: 00007fd2632b1ee9
[ 860.871491][ T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
[ 860.879504][ T28] RBP: 00007fd263335400 R08: 0000000000000000 R09: 0000000000000000
[ 860.887499][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd26333540c
[ 860.895504][ T28] R13: 00007fd263303074 R14: 64626e2f7665642f R15: 0000000000022000
[ 860.903526][ T28]
[ 860.906535][ T28] 1 lock held by syz-executor184/3652:
[ 860.912026][ T28] #0: ffff88801e5c3998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[ 860.921430][ T28] task:syz-executor184 state:D stack:28864 pid:3653 ppid:3639 flags:0x00000004
[ 860.930706][ T28] Call Trace:
[ 860.934003][ T28]
[ 860.936959][ T28] __schedule+0xadf/0x52b0
[ 860.941462][ T28] ? io_schedule_timeout+0x140/0x140
[ 860.946796][ T28] schedule+0xda/0x1b0
[ 860.950902][ T28] schedule_preempt_disabled+0xf/0x20
[ 860.956301][ T28] __mutex_lock+0xa44/0x1350
[ 860.960940][ T28] ? nbd_ioctl+0x151/0xbd0
[ 860.965394][ T28] ? mutex_lock_io_nested+0x1190/0x1190
[ 860.971012][ T28] ? tomoyo_execute_permission+0x4a0/0x4a0
[ 860.976852][ T28] ? bpf_lsm_capable+0x5/0x10
[ 860.981584][ T28] ? security_capable+0x8f/0xc0
[ 860.986465][ T28] nbd_ioctl+0x151/0xbd0
[ 860.990759][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 860.995542][ T28] ? nbd_start_device+0xc30/0xc30
[ 861.000608][ T28] ? __ct_user_exit+0xff/0x150
[ 861.005405][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 861.010299][ T28] ? nbd_start_device+0xc30/0xc30
[ 861.015346][ T28] blkdev_ioctl+0x36e/0x800
[ 861.019913][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 861.025395][ T28] ? bpf_lsm_file_ioctl+0x5/0x10
[ 861.030375][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 861.035852][ T28] __x64_sys_ioctl+0x193/0x200
[ 861.040668][ T28] do_syscall_64+0x35/0xb0
[ 861.045105][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 861.051057][ T28] RIP: 0033:0x7fd2632b1ee9
[ 861.055489][ T28] RSP: 002b:00007fd26323e308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 861.063983][ T28] RAX: ffffffffffffffda RBX: 00007fd263335418 RCX: 00007fd2632b1ee9
[ 861.072005][ T28] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 861.080019][ T28] RBP: 00007fd263335410 R08: 00007fd26323e700 R09: 0000000000000000
[ 861.088007][ T28] R10: 00007fd26323e700 R11: 0000000000000246 R12: 00007fd26333541c
[ 861.096017][ T28] R13: 00007fd263303074 R14: 64626e2f7665642f R15: 0000000000022000
[ 861.104072][ T28]
[ 861.107083][ T28] 1 lock held by syz-executor184/3653:
[ 861.112561][ T28] #0: ffff88801e5c3998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[ 861.121954][ T28] task:syz-executor184 state:D stack:29536 pid:3654 ppid:3639 flags:0x00000004
[ 861.131182][ T28] Call Trace:
[ 861.134465][ T28]
[ 861.137387][ T28] __schedule+0xadf/0x52b0
[ 861.141867][ T28] ? io_schedule_timeout+0x140/0x140
[ 861.147185][ T28] schedule+0xda/0x1b0
[ 861.151306][ T28] schedule_preempt_disabled+0xf/0x20
[ 861.156724][ T28] __mutex_lock+0xa44/0x1350
[ 861.161392][ T28] ? nbd_ioctl+0x151/0xbd0
[ 861.165843][ T28] ? mutex_lock_io_nested+0x1190/0x1190
[ 861.171447][ T28] ? tomoyo_execute_permission+0x4a0/0x4a0
[ 861.177310][ T28] ? bpf_lsm_capable+0x5/0x10
[ 861.182037][ T28] ? security_capable+0x8f/0xc0
[ 861.186915][ T28] nbd_ioctl+0x151/0xbd0
[ 861.191236][ T28] ? blkdev_bszset+0x1f0/0x1f0
[ 861.196030][ T28] ? nbd_start_device+0xc30/0xc30
[ 861.201223][ T28] ? __ct_user_exit+0xff/0x150
[ 861.206014][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 861.210977][ T28] ? nbd_start_device+0xc30/0xc30
[ 861.216028][ T28] blkdev_ioctl+0x36e/0x800
[ 861.220577][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 861.226063][ T28] ? bpf_lsm_file_ioctl+0x5/0x10
[ 861.231042][ T28] ? blkdev_common_ioctl+0x1a30/0x1a30
[ 861.236518][ T28] __x64_sys_ioctl+0x193/0x200
[ 861.241323][ T28] do_syscall_64+0x35/0xb0
[ 861.245761][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 861.251713][ T28] RIP: 0033:0x7fd2632b1ee9
[ 861.256137][ T28] RSP: 002b:00007fd26321d308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 861.264593][ T28] RAX: ffffffffffffffda RBX: 00007fd263335428 RCX: 00007fd2632b1ee9
[ 861.272620][ T28] RDX: 0000000000000040 RSI: 000000000000ab07 RDI: 0000000000000003
[ 861.280617][ T28] RBP: 00007fd263335420 R08: 00007fd26321d700 R09: 0000000000000000
[ 861.288638][ T28] R10: 00007fd26321d700 R11: 0000000000000246 R12: 00007fd26333542c
[ 861.296610][ T28] R13: 00007fd263303074 R14: 64626e2f7665642f R15: 0000000000022000
[ 861.304634][ T28]
[ 861.307656][ T28] 1 lock held by syz-executor184/3654:
[ 861.313141][ T28] #0: ffff88801e5c3998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x151/0xbd0
[ 861.322589][ T28]
[ 861.324936][ T28] =============================================
[ 861.324936][ T28]
[ 861.333378][ T28] NMI backtrace for cpu 0
[ 861.337744][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
[ 861.347043][ T28] khungtaskd[28] cmdline: a
[ 861.352330][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[ 861.362389][ T28] Call Trace:
[ 861.365674][ T28]
[ 861.368609][ T28] dump_stack_lvl+0xcd/0x134
[ 861.373301][ T28] nmi_cpu_backtrace.cold+0x46/0x14f
[ 861.378598][ T28] ? lockdep_hardirqs_off+0x90/0xd0
[ 861.383822][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 861.389046][ T28] nmi_trigger_cpumask_backtrace+0x206/0x250
[ 861.395082][ T28] watchdog+0xcf7/0xfd0
[ 861.399260][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 861.405258][ T28] kthread+0x2e4/0x3a0
[ 861.409411][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 861.415108][ T28] ret_from_fork+0x1f/0x30
[ 861.419564][ T28]
[ 861.422671][ T28] Sending NMI from CPU 0 to CPUs 1:
[ 861.427897][ C1] NMI backtrace for cpu 1
[ 861.427907][ C1] CPU: 1 PID: 91 Comm: kworker/u4:4 Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
[ 861.427928][ C1] kworker/u4:4[91] cmdline: y yR
[ 861.427938][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[ 861.427950][ C1] Workqueue: 0x0 (events_unbound)
[ 861.427973][ C1] RIP: 0010:newidle_balance+0xb83/0x1190
[ 861.428006][ C1] Code: 0d 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 f7 05 00 00 48 8b 83 48 0d 00 00 e9 56 f7 ff ff a8 1a 0d 00 85 c0 0f 85 02 f8 ff ff e8 8b 8c 27 08 85 c0 0f 84
[ 861.428024][ C1] RSP: 0018:ffffc90001577b70 EFLAGS: 00000046
[ 861.428038][ C1] RAX: 0000000000000000 RBX: ffff8880b9b39f80 RCX: 0000000000000001
[ 861.428050][ C1] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[ 861.428061][ C1] RBP: 000000010000dab6 R08: ffffffff81588ffc R09: ffffffff908e0947
[ 861.428074][ C1] R10: fffffbfff211c128 R11: 0000000000000001 R12: 0000000000000000
[ 861.428085][ C1] R13: 0000000000000001 R14: ffffed101736740a R15: ffff888015a48400
[ 861.428098][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
[ 861.428116][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 861.428129][ C1] CR2: 000055f332140680 CR3: 000000000bc8e000 CR4: 00000000003506e0
[ 861.428141][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 861.428154][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 861.428164][ C1] Call Trace:
[ 861.428169][ C1]
[ 861.428176][ C1] ? rcu_read_lock_sched_held+0x3a/0x70
[ 861.428197][ C1] ? update_load_avg+0x1361/0x1c80
[ 861.428226][ C1] ? kvm_sched_clock_read+0x14/0x40
[ 861.428251][ C1] ? load_balance+0x2fe0/0x2fe0
[ 861.428274][ C1] pick_next_task_fair+0x96/0x12e0
[ 861.428297][ C1] __schedule+0x426/0x52b0
[ 861.428329][ C1] ? worker_thread+0x140/0x1080
[ 861.428356][ C1] ? io_schedule_timeout+0x140/0x140
[ 861.428383][ C1] ? rwlock_bug.part.0+0x90/0x90
[ 861.428413][ C1] schedule+0xda/0x1b0
[ 861.428438][ C1] worker_thread+0x15c/0x1080
[ 861.428468][ C1] ? __kthread_parkme+0x15f/0x220
[ 861.428489][ C1] ? process_one_work+0x1610/0x1610
[ 861.428516][ C1] kthread+0x2e4/0x3a0
[ 861.428536][ C1] ? kthread_complete_and_exit+0x40/0x40
[ 861.428561][ C1] ret_from_fork+0x1f/0x30
[ 861.428593][ C1]
[ 861.428891][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 861.428908][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
[ 861.428933][ T28] khungtaskd[28] cmdline: a
[ 861.428945][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[ 861.428957][ T28] Call Trace:
[ 861.428964][ T28]
[ 861.428972][ T28] dump_stack_lvl+0xcd/0x134
[ 861.429012][ T28] panic+0x2c8/0x627
[ 861.429070][ T28] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 861.429107][ T28] ? tick_nohz_tick_stopped+0x13/0xa0
[ 861.429135][ T28] ? __irq_work_queue_local+0xd8/0x1b0
[ 861.429166][ T28] ? irq_work_queue+0x29/0x80
[ 861.429193][ T28] ? watchdog.cold+0x135/0x426
[ 861.429233][ T28] watchdog.cold+0x146/0x426
[ 861.429266][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 861.429306][ T28] kthread+0x2e4/0x3a0
[ 861.429331][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 861.429363][ T28] ret_from_fork+0x1f/0x30
[ 861.429408][ T28]
[ 861.433145][ T28] Kernel Offset: disabled
[ 861.765112][ T28] Rebooting in 86400 seconds..