[ 48.217922][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 56.217787][ T25] kauditd_printk_skb: 37 callbacks suppressed
[ 56.217804][ T25] audit: type=1400 audit(1639413302.007:73): avc: denied { transition } for pid=3389 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 56.247037][ T25] audit: type=1400 audit(1639413302.017:74): avc: denied { write } for pid=3389 comm="sh" path="pipe:[27022]" dev="pipefs" ino=27022 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1
[ 81.366210][ T32] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.63' (ECDSA) to the list of known hosts.
executing program
[ 480.780066][ T25] audit: type=1400 audit(1639413726.567:75): avc: denied { execmem } for pid=3626 comm="syz-executor220" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 480.803875][ T25] audit: type=1400 audit(1639413726.587:76): avc: denied { read } for pid=3627 comm="syz-executor220" name="nbd0" dev="devtmpfs" ino=661 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 480.827893][ T25] audit: type=1400 audit(1639413726.587:77): avc: denied { open } for pid=3627 comm="syz-executor220" path="/dev/nbd0" dev="devtmpfs" ino=661 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 480.854072][ T25] audit: type=1400 audit(1639413726.587:78): avc: denied { create } for pid=3627 comm="syz-executor220" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=ax25_socket permissive=1
[ 480.874448][ T25] audit: type=1400 audit(1639413726.587:79): avc: denied { ioctl } for pid=3627 comm="syz-executor220" path="/dev/nbd0" dev="devtmpfs" ino=661 ioctlcmd=0xab00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 485.801482][ T3627] block nbd0: shutting down sockets
[ 716.244223][ T26] INFO: task syz-executor220:3627 blocked for more than 143 seconds.
[ 716.252404][ T26] Not tainted 5.16.0-rc5-syzkaller #0
[ 716.259042][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.267824][ T26] task:syz-executor220 state:D stack:25848 pid: 3627 ppid: 3626 flags:0x00004004
[ 716.277153][ T26] Call Trace:
[ 716.280539][ T26]
[ 716.283459][ T26] __schedule+0xa9a/0x4940
[ 716.288014][ T26] ? __lock_acquire+0x162f/0x54a0
[ 716.293117][ T26] ? io_schedule_timeout+0x180/0x180
[ 716.298608][ T26] schedule+0xd2/0x260
[ 716.302685][ T26] schedule_timeout+0x1db/0x2a0
[ 716.307690][ T26] ? usleep_range_state+0x1b0/0x1b0
[ 716.312986][ T26] ? wait_for_completion+0x16c/0x270
[ 716.318337][ T26] ? lock_downgrade+0x6e0/0x6e0
[ 716.323198][ T26] ? do_raw_spin_lock+0x120/0x2b0
[ 716.328271][ T26] ? rwlock_bug.part.0+0x90/0x90
[ 716.333229][ T26] ? _raw_spin_unlock_irq+0x1f/0x40
[ 716.338505][ T26] wait_for_completion+0x174/0x270
[ 716.343626][ T26] ? bit_wait_io_timeout+0x160/0x160
[ 716.349089][ T26] ? flush_workqueue_prep_pwqs+0x290/0x4f0
[ 716.355048][ T26] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[ 716.361316][ T26] ? check_flush_dependency+0x86/0x400
[ 716.366821][ T26] flush_workqueue+0x3ed/0x15b0
[ 716.371826][ T26] ? __dev_printk+0xcf/0xf5
[ 716.376497][ T26] ? dev_err_probe.cold+0x21/0x21
[ 716.381542][ T26] ? check_flush_dependency+0x400/0x400
[ 716.387173][ T26] ? sock_shutdown.cold+0x62/0x6e
[ 716.392240][ T26] nbd_ioctl+0x6d8/0xb10
[ 716.396624][ T26] ? nbd_release+0x160/0x160
[ 716.401240][ T26] ? selinux_file_ioctl+0x10f/0x5d0
[ 716.406557][ T26] ? finish_wait+0x270/0x270
[ 716.411167][ T26] ? __context_tracking_exit+0xb8/0xe0
[ 716.416910][ T26] ? nbd_release+0x160/0x160
[ 716.421652][ T26] blkdev_ioctl+0x37a/0x800
[ 716.426256][ T26] ? blkdev_common_ioctl+0x1910/0x1910
[ 716.431731][ T26] ? security_file_ioctl+0x5c/0xb0
[ 716.436960][ T26] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[ 716.443216][ T26] ? blkdev_common_ioctl+0x1910/0x1910
[ 716.448726][ T26] __x64_sys_ioctl+0x193/0x200
[ 716.453686][ T26] do_syscall_64+0x35/0xb0
[ 716.458251][ T26] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 716.464202][ T26] RIP: 0033:0x7f25c24ab389
[ 716.468618][ T26] RSP: 002b:00007ffd8ab5c898 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 716.477093][ T26] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f25c24ab389
[ 716.485099][ T26] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 716.493060][ T26] RBP: 0000000000000000 R08: 00007ffd8ab5ca38 R09: 00007ffd8ab5ca38
[ 716.501097][ T26] R10: 00007ffd8ab5ca38 R11: 0000000000000246 R12: 00007f25c246a6a0
[ 716.509128][ T26] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 716.517178][ T26]
[ 716.520237][ T26]
[ 716.520237][ T26] Showing all locks held in the system:
[ 716.528041][ T26] 1 lock held by khungtaskd/26:
[ 716.532901][ T26] #0: ffffffff8bb812e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 716.542875][ T26] 3 locks held by kworker/u5:0/46:
[ 716.548069][ T26] #0: ffff888147490938 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_one_work+0x896/0x1690
[ 716.558770][ T26] #1: ffffc90001177db0 ((work_completion)(&args->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690
[ 716.570029][ T26] #2: ffff88807db23120 (sk_lock-AF_AX25){+.+.}-{0:0}, at: ax25_recvmsg+0xbc/0x850
[ 716.579689][ T26] 2 locks held by getty/3287:
[ 716.584396][ T26] #0: ffff88807ec29098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 716.594264][ T26] #1: ffffc90002b8e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230
[ 716.604417][ T26]
[ 716.606773][ T26] =============================================
[ 716.606773][ T26]
[ 716.615237][ T26] NMI backtrace for cpu 0
[ 716.619646][ T26] CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc5-syzkaller #0
[ 716.627784][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.637822][ T26] Call Trace:
[ 716.641086][ T26]
[ 716.644001][ T26] dump_stack_lvl+0xcd/0x134
[ 716.648659][ T26] nmi_cpu_backtrace.cold+0x47/0x144
[ 716.653937][ T26] ? lapic_can_unplug_cpu+0x80/0x80
[ 716.659166][ T26] nmi_trigger_cpumask_backtrace+0x1b3/0x230
[ 716.665171][ T26] watchdog+0xc1d/0xf50
[ 716.669316][ T26] ? reset_hung_task_detector+0x30/0x30
[ 716.674847][ T26] kthread+0x405/0x4f0
[ 716.678941][ T26] ? set_kthread_struct+0x130/0x130
[ 716.684127][ T26] ret_from_fork+0x1f/0x30
[ 716.688607][ T26]
[ 716.691759][ T26] Sending NMI from CPU 0 to CPUs 1:
[ 716.697024][ C1] NMI backtrace for cpu 1
[ 716.697036][ C1] CPU: 1 PID: 10 Comm: kworker/u4:1 Not tainted 5.16.0-rc5-syzkaller #0
[ 716.697059][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.697073][ C1] Workqueue: events_unbound toggle_allocation_gate
[ 716.697190][ C1] RIP: 0010:__get_locked_pte+0x1c6/0x4d0
[ 716.697236][ C1] Code: ff 49 83 c7 80 0f 84 9b 02 00 00 e8 54 ac ca ff 4d 89 f7 31 ff 49 83 e7 9f 4c 89 fe e8 d3 ae ca ff 4d 85 ff 0f 84 10 01 00 00 35 ac ca ff 4c 89 f6 31 ff e8 bb ae ca ff e8 26 ac ca ff 4d 89
[ 716.697256][ C1] RSP: 0018:ffffc90000f0f9c8 EFLAGS: 00000202
[ 716.697272][ C1] RAX: 0000000000000000 RBX: 00002aaaaaaab000 RCX: 0000000140ba5007
[ 716.697286][ C1] RDX: 0000000000000000 RSI: ffff888011c7e280 RDI: 0000000000000003
[ 716.697300][ C1] RBP: ffff888140ba4aa8 R08: 0000000000000000 R09: ffffea000006f307
[ 716.697314][ C1] R10: ffffffff81ac389d R11: 000000000000003f R12: ffff888011c28740
[ 716.697328][ C1] R13: ffffc90000f0fa60 R14: 0000000140ba5067 R15: 0000000140ba5007
[ 716.697343][ C1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[ 716.697364][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 716.697380][ C1] CR2: 00007ffe8fb3c448 CR3: 000000000b88e000 CR4: 00000000003506e0
[ 716.697400][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 716.697413][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 716.697426][ C1] Call Trace:
[ 716.697432][ C1]
[ 716.697439][ C1] ? kmem_cache_alloc+0x11b/0x560
[ 716.697460][ C1] __text_poke+0x1ae/0x8c0
[ 716.697515][ C1] ? text_poke_loc_init+0x340/0x340
[ 716.697539][ C1] ? kmem_cache_alloc+0x11b/0x560
[ 716.697559][ C1] text_poke_bp_batch+0x3d7/0x560
[ 716.697584][ C1] ? mutex_lock_io_nested+0x1150/0x1150
[ 716.697608][ C1] ? alternatives_enable_smp+0xf0/0xf0
[ 716.697633][ C1] ? __jump_label_patch+0x159/0x1b0
[ 716.697655][ C1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 716.697683][ C1] ? __jump_label_update+0x351/0x400
[ 716.697746][ C1] text_poke_finish+0x16/0x30
[ 716.697769][ C1] arch_jump_label_transform_apply+0x13/0x20
[ 716.697794][ C1] jump_label_update+0x1d5/0x430
[ 716.697819][ C1] static_key_enable_cpuslocked+0x1b1/0x260
[ 716.697846][ C1] static_key_enable+0x16/0x20
[ 716.697871][ C1] toggle_allocation_gate+0x100/0x390
[ 716.697897][ C1] ? lock_release+0x720/0x720
[ 716.697920][ C1] ? wake_up_kfence_timer+0x20/0x20
[ 716.697945][ C1] ? lockdep_hardirqs_on+0x79/0x100
[ 716.697970][ C1] process_one_work+0x9b2/0x1690
[ 716.697991][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 716.698019][ C1] ? rwlock_bug.part.0+0x90/0x90
[ 716.698043][ C1] ? _raw_spin_lock_irq+0x41/0x50
[ 716.698068][ C1] worker_thread+0x658/0x11f0
[ 716.698088][ C1] ? process_one_work+0x1690/0x1690
[ 716.698108][ C1] kthread+0x405/0x4f0
[ 716.698131][ C1] ? set_kthread_struct+0x130/0x130
[ 716.698156][ C1] ret_from_fork+0x1f/0x30
[ 716.698183][ C1]
[ 716.698190][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.166 msecs
[ 716.699140][ T26] Kernel panic - not syncing: hung_task: blocked tasks
[ 717.006886][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc5-syzkaller #0
[ 717.015043][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 717.025093][ T26] Call Trace:
[ 717.028370][ T26]
[ 717.031294][ T26] dump_stack_lvl+0xcd/0x134
[ 717.035903][ T26] panic+0x2b0/0x6dd
[ 717.039849][ T26] ? __warn_printk+0xf3/0xf3
[ 717.044789][ T26] ? lapic_can_unplug_cpu+0x80/0x80
[ 717.049990][ T26] ? preempt_schedule_thunk+0x16/0x18
[ 717.055371][ T26] ? nmi_trigger_cpumask_backtrace+0x196/0x230
[ 717.061526][ T26] ? watchdog.cold+0x130/0x158
[ 717.066309][ T26] watchdog.cold+0x141/0x158
[ 717.070907][ T26] ? reset_hung_task_detector+0x30/0x30
[ 717.076459][ T26] kthread+0x405/0x4f0
[ 717.080529][ T26] ? set_kthread_struct+0x130/0x130
[ 717.085734][ T26] ret_from_fork+0x1f/0x30
[ 717.090169][ T26]
[ 717.093587][ T26] Kernel Offset: disabled
[ 717.097913][ T26] Rebooting in 86400 seconds..