Warning: Permanently added '10.128.1.56' (ECDSA) to the list of known hosts.
executing program
[ 480.314735][ T27] audit: type=1400 audit(1663957448.049:75): avc: denied { execmem } for pid=3635 comm="syz-executor127" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 480.337094][ T27] audit: type=1400 audit(1663957448.079:76): avc: denied { read } for pid=3636 comm="syz-executor127" name="nbd0" dev="devtmpfs" ino=660 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 480.361090][ T27] audit: type=1400 audit(1663957448.079:77): avc: denied { open } for pid=3636 comm="syz-executor127" path="/dev/nbd0" dev="devtmpfs" ino=660 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 480.385419][ T27] audit: type=1400 audit(1663957448.079:78): avc: denied { ioctl } for pid=3636 comm="syz-executor127" path="/dev/nbd0" dev="devtmpfs" ino=660 ioctlcmd=0xab00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 480.413753][ T3636] nbd0: detected capacity change from 0 to -4194304
[ 485.336243][ T3636] block nbd0: shutting down sockets
[ 510.779750][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 30 seconds
[ 540.504171][ T2972] udevd[2972]: worker [3638] /devices/virtual/block/nbd0 is taking a long time
[ 540.859762][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 60 seconds
[ 570.939756][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 90 seconds
[ 601.019763][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 120 seconds
[ 631.099735][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 150 seconds
executing program
[ 660.669680][ T2972] udevd[2972]: worker [3638] /devices/virtual/block/nbd0 timeout; kill it
[ 660.678928][ T2972] udevd[2972]: seq 7473 '/devices/virtual/block/nbd0' killed
[ 660.679002][ T3638] ldm_validate_partition_table(): Disk read failed.
[ 660.693162][ T3638] Dev nbd0: unable to read RDB block 0
[ 660.698638][ T3638] nbd0: unable to read partition table
[ 660.704623][ T3638] nbd0: partition table beyond EOD, truncated
[ 661.179623][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 180 seconds
[ 691.259713][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 210 seconds
[ 721.339672][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 240 seconds
[ 751.419655][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 270 seconds
[ 781.499679][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 300 seconds
[ 811.579654][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 330 seconds
[ 841.659621][ T9] block nbd0: Possible stuck request ffff88801e700000: control (read@0,4096B). Runtime 360 seconds
[ 859.579707][ T28] INFO: task udevd:3638 blocked for more than 143 seconds.
[ 859.587088][ T28] Not tainted 6.0.0-rc6-syzkaller-00210-gbf682942cd26 #0
[ 859.595156][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.603922][ T28] task:udevd state:D stack:26248 pid: 3638 ppid: 2972 flags:0x00004006
[ 859.613180][ T28] Call Trace:
[ 859.616450][ T28]
[ 859.619376][ T28] __schedule+0xadf/0x52b0
[ 859.623994][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.629296][ T28] ? mark_held_locks+0x9f/0xe0
[ 859.634111][ T28] schedule+0xda/0x1b0
[ 859.638226][ T28] io_schedule+0xba/0x130
[ 859.642630][ T28] folio_wait_bit_common+0x3dd/0xa90
[ 859.647946][ T28] ? perf_trace_mm_filemap_op_page_cache+0x8c0/0x8c0
[ 859.654668][ T28] ? __filemap_get_folio+0x250/0xed0
[ 859.660004][ T28] ? folio_unlock+0xc0/0xc0
[ 859.664530][ T28] __filemap_get_folio+0xc6d/0xed0
[ 859.669682][ T28] ? filemap_add_folio+0x1d0/0x1d0
[ 859.674821][ T28] ? page_cache_delete+0x850/0x850
[ 859.679990][ T28] ? _flat_send_IPI_mask+0x53/0x60
[ 859.685121][ T28] ? _flat_send_IPI_mask+0x53/0x60
[ 859.690270][ T28] truncate_inode_pages_range+0x37c/0x1510
[ 859.696108][ T28] ? truncate_inode_partial_folio+0xdf0/0xdf0
[ 859.702503][ T28] ? lockdep_hardirqs_on+0x79/0x100
[ 859.707731][ T28] ? smp_call_function_many_cond+0x642/0x1430
[ 859.713921][ T28] ? generic_remap_file_range_prep+0x50/0x50
[ 859.719993][ T28] ? __brelse+0xa0/0xa0
[ 859.724169][ T28] ? smp_call_on_cpu+0x270/0x270
[ 859.729106][ T28] ? mutex_lock_io_nested+0x1190/0x1190
[ 859.734691][ T28] ? __brelse+0xa0/0xa0
[ 859.738864][ T28] blkdev_flush_mapping+0x140/0x2f0
[ 859.744208][ T28] blkdev_put_whole+0xd1/0xf0
[ 859.748901][ T28] blkdev_put+0x226/0x770
[ 859.753267][ T28] blkdev_close+0x64/0x80
[ 859.757612][ T28] __fput+0x277/0x9d0
[ 859.761644][ T28] ? blkdev_fsync+0xa0/0xa0
[ 859.766163][ T28] task_work_run+0xdd/0x1a0
[ 859.770699][ T28] do_exit+0xad5/0x29b0
[ 859.774866][ T28] ? find_held_lock+0x2d/0x110
[ 859.779735][ T28] ? mm_update_next_owner+0x7a0/0x7a0
[ 859.785128][ T28] ? lock_downgrade+0x6e0/0x6e0
[ 859.790015][ T28] do_group_exit+0xd2/0x2f0
[ 859.794530][ T28] get_signal+0x238c/0x2610
[ 859.799030][ T28] ? exit_signals+0x8b0/0x8b0
[ 859.803768][ T28] ? kmem_cache_free.part.0+0x1d3/0x2e0
[ 859.809333][ T28] ? putname+0xfe/0x140
[ 859.813681][ T28] ? lockdep_hardirqs_on+0x79/0x100
[ 859.818920][ T28] arch_do_signal_or_restart+0x82/0x2300
[ 859.824615][ T28] ? do_sys_openat2+0xa1/0x4c0
[ 859.829437][ T28] ? build_open_flags+0x6f0/0x6f0
[ 859.834489][ T28] ? get_sigframe_size+0x10/0x10
[ 859.839506][ T28] ? up_write+0x470/0x470
[ 859.843862][ T28] ? __x64_sys_openat+0x13f/0x1f0
[ 859.848913][ T28] ? __ia32_sys_open+0x1c0/0x1c0
[ 859.853896][ T28] ? exit_to_user_mode_prepare+0x137/0x250
[ 859.859759][ T28] exit_to_user_mode_prepare+0x15f/0x250
[ 859.865389][ T28] syscall_exit_to_user_mode+0x19/0x50
[ 859.870881][ T28] do_syscall_64+0x42/0xb0
[ 859.875361][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 859.881349][ T28] RIP: 0033:0x7fea11178697
[ 859.885769][ T28] RSP: 002b:00007ffc3c7fb710 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 859.894224][ T28] RAX: 0000000000000008 RBX: 000055b3e78469c0 RCX: 00007fea11178697
[ 859.902245][ T28] RDX: 00000000000a0800 RSI: 000055b3e7818920 RDI: 00000000ffffff9c
[ 859.910248][ T28] RBP: 000055b3e7818920 R08: 0000000000000001 R09: 00007ffc3c816080
[ 859.918230][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
[ 859.926260][ T28] R13: 000055b3e7819a80 R14: 00007ffc3c7fb7bc R15: 000055b3e780b2c0
[ 859.934262][ T28]
[ 859.937290][ T28] INFO: task syz-executor127:3645 blocked for more than 143 seconds.
[ 859.945431][ T28] Not tainted 6.0.0-rc6-syzkaller-00210-gbf682942cd26 #0
[ 859.953119][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.961851][ T28] task:syz-executor127 state:D stack:28376 pid: 3645 ppid: 3635 flags:0x00000004
[ 859.971128][ T28] Call Trace:
[ 859.974438][ T28]
[ 859.977366][ T28] __schedule+0xadf/0x52b0
[ 859.981877][ T28] ? io_schedule_timeout+0x140/0x140
[ 859.987186][ T28] schedule+0xda/0x1b0
[ 859.991304][ T28] schedule_preempt_disabled+0xf/0x20
[ 859.996708][ T28] __mutex_lock+0xa44/0x1350
[ 860.001365][ T28] ? blkdev_get_by_dev.part.0+0x9b/0xb90
[ 860.007019][ T28] ? mutex_lock_io_nested+0x1190/0x1190
[ 860.012637][ T28] ? _atomic_dec_and_lock+0x92/0x100
[ 860.017959][ T28] ? disk_block_events+0x1d/0x130
[ 860.023101][ T28] blkdev_get_by_dev.part.0+0x9b/0xb90
[ 860.028585][ T28] ? devcgroup_check_permission+0x1a6/0x430
[ 860.034609][ T28] blkdev_get_by_dev+0x6b/0x80
[ 860.039502][ T28] blkdev_open+0x13c/0x2c0
[ 860.043929][ T28] do_dentry_open+0x4a4/0x13a0
[ 860.048692][ T28] ? blkdev_close+0x80/0x80
[ 860.053250][ T28] path_openat+0x1c92/0x28f0
[ 860.057866][ T28] ? path_lookupat+0x840/0x840
[ 860.062701][ T28] do_filp_open+0x1b6/0x400
[ 860.067320][ T28] ? may_open_dev+0xf0/0xf0
[ 860.071869][ T28] ? find_held_lock+0x2d/0x110
[ 860.076657][ T28] ? do_raw_spin_lock+0x120/0x2a0
[ 860.081750][ T28] ? rwlock_bug.part.0+0x90/0x90
[ 860.086701][ T28] ? _find_next_bit+0x1e3/0x260
[ 860.091654][ T28] ? _raw_spin_unlock+0x24/0x40
[ 860.096564][ T28] ? alloc_fd+0x2f0/0x6f0
[ 860.101010][ T28] do_sys_openat2+0x16d/0x4c0
[ 860.105714][ T28] ? build_open_flags+0x6f0/0x6f0
[ 860.110803][ T28] ? up_write+0x470/0x470
[ 860.115160][ T28] __x64_sys_openat+0x13f/0x1f0
[ 860.120094][ T28] ? __ia32_sys_open+0x1c0/0x1c0
[ 860.125052][ T28] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.130989][ T28] ? syscall_enter_from_user_mode+0x22/0xb0
[ 860.136907][ T28] do_syscall_64+0x35/0xb0
[ 860.141405][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.147318][ T28] RIP: 0033:0x7ff1e173a4d7
[ 860.151775][ T28] RSP: 002b:00007ffdf8c863c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 860.160360][ T28] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff1e173a4d7
[ 860.168325][ T28] RDX: 0000000000000000 RSI: 00007ffdf8c86440 RDI: 00000000ffffff9c
[ 860.176335][ T28] RBP: 00007ffdf8c86440 R08: 000000000000ffff R09: 00007ffdf8c862d0
[ 860.184628][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 860.192640][ T28] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 860.200672][ T28]
[ 860.203688][ T28]
[ 860.203688][ T28] Showing all locks held in the system:
[ 860.211498][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 860.216880][ T28] #0: ffffffff8bf85db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.227471][ T28] 1 lock held by rcu_tasks_trace/13:
[ 860.232816][ T28] #0: ffffffff8bf85ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.243913][ T28] 1 lock held by khungtaskd/28:
[ 860.248771][ T28] #0: ffffffff8bf86900 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 860.258743][ T28] 1 lock held by klogd/2961:
[ 860.263401][ T28] #0: ffff8880b9a3a018 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120
[ 860.273373][ T28] 2 locks held by getty/3287:
[ 860.278056][ T28] #0: ffff88801caa6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 860.287941][ T28] #1: ffffc90001c482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0
[ 860.298161][ T28] 1 lock held by udevd/3638:
[ 860.302814][ T28] #0: ffff88801e6644c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xbc/0x770
[ 860.312194][ T28] 1 lock held by syz-executor127/3645:
[ 860.317669][ T28] #0: ffff88801e6644c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90
[ 860.328280][ T28]
[ 860.330641][ T28] =============================================
[ 860.330641][ T28]
[ 860.339048][ T28] NMI backtrace for cpu 1
[ 860.343381][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc6-syzkaller-00210-gbf682942cd26 #0
[ 860.353177][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.363222][ T28] Call Trace:
[ 860.366493][ T28]
[ 860.369423][ T28] dump_stack_lvl+0xcd/0x134
[ 860.374033][ T28] nmi_cpu_backtrace.cold+0x46/0x14f
[ 860.379310][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.384501][ T28] nmi_trigger_cpumask_backtrace+0x206/0x250
[ 860.390491][ T28] watchdog+0xc18/0xf50
[ 860.394657][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.400652][ T28] kthread+0x2e4/0x3a0
[ 860.404730][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.410369][ T28] ret_from_fork+0x1f/0x30
[ 860.414799][ T28]
[ 860.417917][ T28] Sending NMI from CPU 1 to CPUs 0:
[ 860.423188][ C0] NMI backtrace for cpu 0
[ 860.423197][ C0] CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.0.0-rc6-syzkaller-00210-gbf682942cd26 #0
[ 860.423219][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.423231][ C0] Workqueue: events_unbound toggle_allocation_gate
[ 860.423255][ C0] RIP: 0010:__lock_acquire+0x574/0x56d0
[ 860.423277][ C0] Code: 00 00 45 89 fe 41 83 ee 01 0f 88 7c 13 00 00 49 b9 00 00 00 00 00 fc ff df 49 63 c6 48 8d 04 80 49 8d ac c5 99 0a 00 00 eb 12 <41> 83 ee 01 48 83 ed 28 41 83 fe ff 0f 84 15 0b 00 00 48 8d 5d df
[ 860.423294][ C0] RSP: 0018:ffffc90000d2f738 EFLAGS: 00000046
[ 860.423308][ C0] RAX: 0000000000000000 RBX: ffff8880174d0af8 RCX: 0000000000000001
[ 860.423321][ C0] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff908e8dd9
[ 860.423333][ C0] RBP: ffff8880174d0b19 R08: 0000000000000000 R09: dffffc0000000000
[ 860.423345][ C0] R10: fffffbfff211c32a R11: 0000000000000000 R12: ffff8880174d0bc0
[ 860.423358][ C0] R13: ffff8880174d0080 R14: 0000000000000000 R15: 0000000000000005
[ 860.423370][ C0] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
[ 860.423386][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 860.423399][ C0] CR2: 000056317ad90680 CR3: 000000000bc8e000 CR4: 00000000003506f0
[ 860.423411][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 860.423422][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 860.423434][ C0] Call Trace:
[ 860.423438][ C0]
[ 860.423445][ C0] ? __lock_acquire+0x166e/0x56d0
[ 860.423464][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400
[ 860.423484][ C0] ? mark_lock.part.0+0xee/0x1910
[ 860.423503][ C0] lock_acquire+0x1ab/0x570
[ 860.423521][ C0] ? __get_locked_pte+0x154/0x270
[ 860.423544][ C0] ? lock_release+0x780/0x780
[ 860.423561][ C0] ? __text_poke+0x47a/0x8e0
[ 860.423579][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 860.423597][ C0] _raw_spin_lock+0x2a/0x40
[ 860.423618][ C0] ? __get_locked_pte+0x154/0x270
[ 860.423639][ C0] __get_locked_pte+0x154/0x270
[ 860.423661][ C0] ? kmem_cache_alloc_trace+0x119/0x460
[ 860.423684][ C0] __text_poke+0x1b3/0x8e0
[ 860.423701][ C0] ? cpumask_weight+0x40/0x40
[ 860.423725][ C0] ? text_poke_memset+0x60/0x60
[ 860.423748][ C0] text_poke_bp_batch+0x147/0x6c0
[ 860.423772][ C0] ? kmem_cache_alloc_trace+0x119/0x460
[ 860.423796][ C0] ? do_sync_core+0x20/0x20
[ 860.423814][ C0] ? arch_jump_label_transform_queue+0xa0/0x100
[ 860.423839][ C0] ? __jump_label_update+0x296/0x410
[ 860.423859][ C0] text_poke_finish+0x16/0x30
[ 860.423877][ C0] arch_jump_label_transform_apply+0x13/0x20
[ 860.423900][ C0] jump_label_update+0x32f/0x410
[ 860.423920][ C0] static_key_disable_cpuslocked+0x152/0x1b0
[ 860.423940][ C0] static_key_disable+0x16/0x20
[ 860.423959][ C0] toggle_allocation_gate+0x183/0x390
[ 860.423984][ C0] ? lock_release+0x780/0x780
[ 860.424001][ C0] ? wake_up_kfence_timer+0x20/0x20
[ 860.424021][ C0] ? lockdep_hardirqs_on+0x79/0x100
[ 860.424039][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400
[ 860.424060][ C0] process_one_work+0x991/0x1610
[ 860.424082][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 860.424104][ C0] ? rwlock_bug.part.0+0x90/0x90
[ 860.424122][ C0] ? _raw_spin_lock_irq+0x41/0x50
[ 860.424142][ C0] worker_thread+0x665/0x1080
[ 860.424163][ C0] ? __kthread_parkme+0x15f/0x220
[ 860.424181][ C0] ? process_one_work+0x1610/0x1610
[ 860.424202][ C0] kthread+0x2e4/0x3a0
[ 860.424219][ C0] ? kthread_complete_and_exit+0x40/0x40
[ 860.424239][ C0] ret_from_fork+0x1f/0x30
[ 860.424262][ C0]
[ 860.424268][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.080 msecs
[ 860.425183][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.793722][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-rc6-syzkaller-00210-gbf682942cd26 #0
[ 860.803536][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[ 860.813595][ T28] Call Trace:
[ 860.816877][ T28]
[ 860.819810][ T28] dump_stack_lvl+0xcd/0x134
[ 860.824410][ T28] panic+0x2c8/0x627
[ 860.828346][ T28] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 860.834351][ T28] ? irq_work_claim+0x76/0x90
[ 860.839037][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.844246][ T28] ? irq_work_queue+0x29/0x80
[ 860.848933][ T28] ? watchdog.cold+0x130/0x158
[ 860.853718][ T28] watchdog.cold+0x141/0x158
[ 860.858315][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.864309][ T28] kthread+0x2e4/0x3a0
[ 860.868397][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.874044][ T28] ret_from_fork+0x1f/0x30
[ 860.878501][ T28]
[ 860.881894][ T28] Kernel Offset: disabled
[ 860.886225][ T28] Rebooting in 86400 seconds..