Warning: Permanently added '10.128.1.59' (ECDSA) to the list of known hosts. executing program [ 485.293208][ T3181] Bluetooth: hci0: command 0x0409 tx timeout [ 487.372082][ T3181] Bluetooth: hci0: command 0x041b tx timeout [ 489.451861][ T8477] Bluetooth: hci0: command 0x040f tx timeout [ 491.531489][ T8477] Bluetooth: hci0: command 0x0419 tx timeout [ 493.611201][ T8477] Bluetooth: hci0: command 0x0405 tx timeout [ 605.518078][ T8477] Bluetooth: hci0: command 0x0406 tx timeout [ 721.188815][ T1653] INFO: task krfcommd:4781 blocked for more than 143 seconds. [ 721.196534][ T1653] Not tainted 5.14.0-rc7-syzkaller #0 [ 721.203716][ T1653] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.212706][ T1653] task:krfcommd state:D stack:29640 pid: 4781 ppid: 2 flags:0x00004000 [ 721.222596][ T1653] Call Trace: [ 721.225967][ T1653] __schedule+0x93a/0x26f0 [ 721.231061][ T1653] ? io_schedule_timeout+0x140/0x140 [ 721.236427][ T1653] schedule+0xd3/0x270 [ 721.240972][ T1653] schedule_preempt_disabled+0xf/0x20 [ 721.246371][ T1653] __mutex_lock+0x7b6/0x10a0 [ 721.251449][ T1653] ? rfcomm_run+0x2ed/0x4a20 [ 721.256150][ T1653] ? mutex_lock_io_nested+0xf00/0xf00 [ 721.261991][ T1653] ? __mutex_unlock_slowpath+0xe2/0x610 [ 721.267593][ T1653] rfcomm_run+0x2ed/0x4a20 [ 721.272475][ T1653] ? find_held_lock+0x2d/0x110 [ 721.277374][ T1653] ? rfcomm_check_accept+0x240/0x240 [ 721.283196][ T1653] ? lock_downgrade+0x6e0/0x6e0 [ 721.288068][ T1653] ? __init_waitqueue_head+0xd0/0xd0 [ 721.293965][ T1653] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 721.300409][ T1653] ? lockdep_hardirqs_on+0x79/0x100 [ 721.305715][ T1653] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 721.312491][ T1653] ? __kthread_parkme+0x15f/0x220 [ 721.317591][ T1653] ? rfcomm_check_accept+0x240/0x240 [ 721.323467][ T1653] kthread+0x3e5/0x4d0 [ 721.327569][ T1653] ? set_kthread_struct+0x130/0x130 [ 721.333215][ T1653] ret_from_fork+0x1f/0x30 [ 721.337793][ T1653] INFO: task syz-executor712:8475 blocked for more than 143 seconds. [ 721.346396][ T1653] Not tainted 5.14.0-rc7-syzkaller #0 [ 721.352424][ T1653] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.361797][ T1653] task:syz-executor712 state:D stack:27488 pid: 8475 ppid: 8443 flags:0x00004006 [ 721.371149][ T1653] Call Trace: [ 721.374442][ T1653] __schedule+0x93a/0x26f0 [ 721.379416][ T1653] ? io_schedule_timeout+0x140/0x140 [ 721.384745][ T1653] ? mark_held_locks+0x9f/0xe0 [ 721.389929][ T1653] schedule+0xd3/0x270 [ 721.394034][ T1653] __lock_sock+0x13d/0x260 [ 721.398974][ T1653] ? sock_omalloc+0x180/0x180 [ 721.403694][ T1653] ? finish_wait+0x270/0x270 [ 721.408289][ T1653] ? rwlock_bug.part.0+0x90/0x90 [ 721.413288][ T1653] lock_sock_nested+0xf6/0x120 [ 721.418068][ T1653] rfcomm_sk_state_change+0xb4/0x390 [ 721.423513][ T1653] __rfcomm_dlc_close+0x1b6/0x8a0 [ 721.428787][ T1653] rfcomm_dlc_close+0x1ea/0x240 [ 721.433658][ T1653] __rfcomm_sock_close+0xac/0x260 [ 721.438945][ T1653] rfcomm_sock_shutdown+0xe9/0x210 [ 721.444081][ T1653] rfcomm_sock_release+0x5f/0x140 [ 721.449181][ T1653] __sock_release+0xcd/0x280 [ 721.449280][ T1653] sock_close+0x18/0x20 [ 721.458010][ T1653] __fput+0x288/0x920 [ 721.462141][ T1653] ? __sock_release+0x280/0x280 [ 721.467006][ T1653] task_work_run+0xdd/0x1a0 [ 721.471583][ T1653] do_exit+0xbd4/0x2a60 [ 721.475925][ T1653] ? mm_update_next_owner+0x7a0/0x7a0 [ 721.481352][ T1653] ? lock_downgrade+0x6e0/0x6e0 [ 721.486480][ T1653] do_group_exit+0x125/0x310 [ 721.491130][ T1653] get_signal+0x47f/0x2160 [ 721.495617][ T1653] ? lock_downgrade+0x6e0/0x6e0 [ 721.500552][ T1653] arch_do_signal_or_restart+0x2a9/0x1c40 [ 721.506361][ T1653] ? rfcomm_sock_connect+0x15f/0x460 [ 721.511824][ T1653] ? rfcomm_sock_getname+0x300/0x300 [ 721.517138][ T1653] ? __sys_connect_file+0x4e/0x1a0 [ 721.522442][ T1653] ? get_sigframe_size+0x10/0x10 [ 721.527397][ T1653] ? __sys_connect_file+0x1a0/0x1a0 [ 721.532672][ T1653] exit_to_user_mode_prepare+0x17d/0x290 [ 721.538419][ T1653] syscall_exit_to_user_mode+0x19/0x60 [ 721.543976][ T1653] do_syscall_64+0x42/0xb0 [ 721.548574][ T1653] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 721.554489][ T1653] RIP: 0033:0x445fe9 [ 721.558556][ T1653] RSP: 002b:00007fff7c296ac8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 721.567003][ T1653] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000445fe9 [ 721.575060][ T1653] RDX: 0000000000000080 RSI: 0000000020000000 RDI: 0000000000000004 [ 721.583169][ T1653] RBP: 0000000000000003 R08: 000000ff00000001 R09: 000000ff00000001 [ 721.591736][ T1653] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000f882b8 [ 721.600598][ T1653] R13: 0000000000000072 R14: 00007fff7c296b20 R15: 0000000000000003 [ 721.608709][ T1653] [ 721.608709][ T1653] Showing all locks held in the system: [ 721.616535][ T1653] 1 lock held by khungtaskd/1653: [ 721.621842][ T1653] #0: ffffffff8b97c280 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 721.631923][ T1653] 1 lock held by krfcommd/4781: [ 721.636771][ T1653] #0: ffffffff8d3051e8 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_run+0x2ed/0x4a20 [ 721.645945][ T1653] 1 lock held by in:imklog/8152: [ 721.651062][ T1653] #0: ffff888020ffc0f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 721.660523][ T1653] 4 locks held by syz-executor712/8475: [ 721.666085][ T1653] #0: ffff88803147cc90 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release+0x86/0x280 [ 721.676698][ T1653] #1: ffff88801ed9f120 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x54/0x210 [ 721.688748][ T1653] #2: ffffffff8d3051e8 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x34/0x240 [ 721.698181][ T1653] #3: ffff888143fa9128 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x162/0x8a0 [ 721.707616][ T1653] [ 721.710131][ T1653] ============================================= [ 721.710131][ T1653] [ 721.718640][ T1653] NMI backtrace for cpu 0 [ 721.722975][ T1653] CPU: 0 PID: 1653 Comm: khungtaskd Not tainted 5.14.0-rc7-syzkaller #0 [ 721.731301][ T1653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 721.741356][ T1653] Call Trace: [ 721.744635][ T1653] dump_stack_lvl+0xcd/0x134 [ 721.749274][ T1653] nmi_cpu_backtrace.cold+0x44/0xd7 [ 721.754573][ T1653] ? lapic_can_unplug_cpu+0x80/0x80 [ 721.759865][ T1653] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 721.765928][ T1653] watchdog+0xd0a/0xfc0 [ 721.770104][ T1653] ? reset_hung_task_detector+0x30/0x30 [ 721.775657][ T1653] kthread+0x3e5/0x4d0 [ 721.779754][ T1653] ? set_kthread_struct+0x130/0x130 [ 721.785141][ T1653] ret_from_fork+0x1f/0x30 [ 721.789716][ T1653] Sending NMI from CPU 0 to CPUs 1: [ 721.795386][ C1] NMI backtrace for cpu 1 [ 721.795397][ C1] CPU: 1 PID: 29 Comm: kworker/u4:2 Not tainted 5.14.0-rc7-syzkaller #0 [ 721.795409][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 721.795420][ C1] Workqueue: events_unbound toggle_allocation_gate [ 721.795434][ C1] RIP: 0010:queue_delayed_work_on+0x7e/0x120 [ 721.795448][ C1] Code: 00 40 0f 92 c5 31 ff 45 31 ed 89 ee e8 eb b6 29 00 40 84 ed 74 7e e8 a1 b0 29 00 31 ff 48 89 de e8 f7 b5 29 00 48 85 db 75 5e 8d b0 29 00 9c 41 5c 41 81 e4 00 02 00 00 31 ff 4c 89 e6 e8 d9 [ 721.795467][ C1] RSP: 0018:ffffc90000e3fc18 EFLAGS: 00000006 [ 721.795480][ C1] RAX: 00000000000404ff RBX: 0000000000000200 RCX: 1ffffffff1f9fa42 [ 721.795491][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 721.795501][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8fcf48f7 [ 721.795512][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8babf300 [ 721.795522][ C1] R13: 0000000000000001 R14: ffff888010c69000 R15: 000000000000000a [ 721.795533][ C1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 721.795544][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 721.795553][ C1] CR2: 00007f9cdd907000 CR3: 000000000b68e000 CR4: 00000000001506e0 [ 721.795564][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 721.795574][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 721.795583][ C1] Call Trace: [ 721.795589][ C1] toggle_allocation_gate+0x1ca/0x390 [ 721.795596][ C1] ? lock_release+0x720/0x720 [ 721.795602][ C1] ? wake_up_kfence_timer+0x20/0x20 [ 721.795609][ C1] process_one_work+0x98d/0x1630 [ 721.795616][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 721.795623][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 721.795630][ C1] ? _raw_spin_lock_irq+0x41/0x50 [ 721.795637][ C1] worker_thread+0x658/0x11f0 [ 721.795644][ C1] ? process_one_work+0x1630/0x1630 [ 721.795650][ C1] kthread+0x3e5/0x4d0 [ 721.795657][ C1] ? set_kthread_struct+0x130/0x130 [ 721.795664][ C1] ret_from_fork+0x1f/0x30 [ 721.808507][ T1653] Kernel panic - not syncing: hung_task: blocked tasks [ 722.005102][ T1653] CPU: 0 PID: 1653 Comm: khungtaskd Not tainted 5.14.0-rc7-syzkaller #0 [ 722.013698][ T1653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 722.023747][ T1653] Call Trace: [ 722.027033][ T1653] dump_stack_lvl+0xcd/0x134 [ 722.031648][ T1653] panic+0x306/0x73d [ 722.035595][ T1653] ? __warn_printk+0xf3/0xf3 [ 722.040191][ T1653] ? lapic_can_unplug_cpu+0x80/0x80 [ 722.045403][ T1653] ? preempt_schedule_thunk+0x16/0x18 [ 722.050808][ T1653] ? nmi_trigger_cpumask_backtrace+0x196/0x230 [ 722.056994][ T1653] ? watchdog.cold+0x5/0x158 [ 722.061626][ T1653] watchdog.cold+0x16/0x158 [ 722.066136][ T1653] ? reset_hung_task_detector+0x30/0x30 [ 722.071696][ T1653] kthread+0x3e5/0x4d0 [ 722.075783][ T1653] ? set_kthread_struct+0x130/0x130 [ 722.080995][ T1653] ret_from_fork+0x1f/0x30 [ 722.085636][ T1653] Kernel Offset: disabled [ 722.090073][ T1653] Rebooting in 86400 seconds..