Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts. executing program [ 486.729518][ T2975] Bluetooth: hci0: command 0x0409 tx timeout [ 488.809278][ T2975] Bluetooth: hci0: command 0x041b tx timeout [ 490.889116][ T6597] Bluetooth: hci0: command 0x040f tx timeout [ 492.968866][ T6597] Bluetooth: hci0: command 0x0419 tx timeout [ 495.048645][ T6597] Bluetooth: hci0: command 0x0405 tx timeout [ 610.718818][ T6597] Bluetooth: hci0: command 0x0406 tx timeout [ 716.152632][ T27] INFO: task krfcommd:2893 blocked for more than 143 seconds. [ 716.160172][ T27] Not tainted 5.14.0-rc6-next-20210817-syzkaller #0 [ 716.168278][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.177076][ T27] task:krfcommd state:D stack:29112 pid: 2893 ppid: 2 flags:0x00004000 [ 716.186413][ T27] Call Trace: [ 716.189699][ T27] __schedule+0x93a/0x26f0 [ 716.194502][ T27] ? io_schedule_timeout+0x140/0x140 [ 716.199806][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 716.205219][ T27] schedule+0xd3/0x270 [ 716.209316][ T27] schedule_preempt_disabled+0xf/0x20 [ 716.215121][ T27] __mutex_lock+0xa46/0x1300 [ 716.219837][ T27] ? rfcomm_run+0x2ed/0x4a20 [ 716.225017][ T27] ? mutex_lock_io_nested+0x1160/0x1160 [ 716.230878][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 716.236057][ T27] rfcomm_run+0x2ed/0x4a20 [ 716.240582][ T27] ? find_held_lock+0x2d/0x110 [ 716.245707][ T27] ? rfcomm_check_accept+0x240/0x240 [ 716.251097][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 716.256216][ T27] ? __init_waitqueue_head+0xd0/0xd0 [ 716.261513][ T27] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 716.267763][ T27] ? lockdep_hardirqs_on+0x79/0x100 [ 716.273123][ T27] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 716.279430][ T27] ? __kthread_parkme+0x15f/0x220 [ 716.285397][ T27] ? rfcomm_check_accept+0x240/0x240 [ 716.290827][ T27] kthread+0x3e5/0x4d0 [ 716.295251][ T27] ? set_kthread_struct+0x130/0x130 [ 716.300535][ T27] ret_from_fork+0x1f/0x30 [ 716.305302][ T27] INFO: task syz-executor104:6595 blocked for more than 143 seconds. [ 716.313623][ T27] Not tainted 5.14.0-rc6-next-20210817-syzkaller #0 [ 716.320906][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.329938][ T27] task:syz-executor104 state:D stack:28184 pid: 6595 ppid: 6563 flags:0x00004006 [ 716.339311][ T27] Call Trace: [ 716.342690][ T27] __schedule+0x93a/0x26f0 [ 716.347125][ T27] ? io_schedule_timeout+0x140/0x140 [ 716.352448][ T27] ? trace_hardirqs_on+0x5b/0x1c0 [ 716.357539][ T27] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 716.363381][ T27] schedule+0xd3/0x270 [ 716.367472][ T27] __lock_sock+0x13d/0x260 [ 716.372027][ T27] ? sock_omalloc+0x180/0x180 [ 716.376728][ T27] ? __rfcomm_dlc_close+0x162/0x8a0 [ 716.381948][ T27] ? finish_wait+0x270/0x270 [ 716.386724][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 716.391780][ T27] lock_sock_nested+0xf6/0x120 [ 716.396587][ T27] rfcomm_sk_state_change+0xb4/0x390 [ 716.401971][ T27] __rfcomm_dlc_close+0x1b6/0x8a0 [ 716.407033][ T27] rfcomm_dlc_close+0x1ea/0x240 [ 716.414810][ T27] __rfcomm_sock_close+0xac/0x260 [ 716.419945][ T27] rfcomm_sock_shutdown+0xe9/0x210 [ 716.425099][ T27] rfcomm_sock_release+0x5f/0x140 [ 716.430234][ T27] __sock_release+0xcd/0x280 [ 716.435136][ T27] sock_close+0x18/0x20 [ 716.439361][ T27] __fput+0x288/0x9f0 [ 716.443440][ T27] ? __sock_release+0x280/0x280 [ 716.448604][ T27] task_work_run+0xdd/0x1a0 [ 716.453151][ T27] do_exit+0xbae/0x2a30 [ 716.457462][ T27] ? lock_acquire+0x442/0x510 [ 716.462132][ T27] ? rcu_read_lock_sched_held+0xd/0x70 [ 716.467773][ T27] ? lock_release+0x522/0x720 [ 716.472603][ T27] ? mm_update_next_owner+0x7a0/0x7a0 [ 716.478063][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 716.483068][ T27] ? do_raw_spin_lock+0x120/0x2b0 [ 716.488126][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 716.493096][ T27] do_group_exit+0x125/0x310 [ 716.497813][ T27] get_signal+0x47f/0x2160 [ 716.502271][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 716.507240][ T27] ? wake_up_q+0xf0/0xf0 [ 716.511545][ T27] arch_do_signal_or_restart+0x2a9/0x1c40 [ 716.518263][ T27] ? rfcomm_sock_connect+0x15f/0x460 [ 716.523739][ T27] ? rfcomm_sock_getname+0x300/0x300 [ 716.529119][ T27] ? __sys_connect_file+0x4e/0x1a0 [ 716.534274][ T27] ? get_sigframe_size+0x10/0x10 [ 716.539225][ T27] ? __sys_connect_file+0x1a0/0x1a0 [ 716.544473][ T27] exit_to_user_mode_prepare+0x17d/0x290 [ 716.550742][ T27] syscall_exit_to_user_mode+0x19/0x60 [ 716.556302][ T27] do_syscall_64+0x42/0xb0 [ 716.560792][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 716.567002][ T27] RIP: 0033:0x445fe9 [ 716.570899][ T27] RSP: 002b:00007ffc3a265128 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 716.579350][ T27] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000445fe9 [ 716.587511][ T27] RDX: 0000000000000080 RSI: 0000000020000000 RDI: 0000000000000004 [ 716.595827][ T27] RBP: 0000000000000003 R08: 000000ff00000001 R09: 000000ff00000001 [ 716.603840][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001bc12b8 [ 716.611808][ T27] R13: 0000000000000072 R14: 00007ffc3a265180 R15: 0000000000000003 [ 716.619830][ T27] INFO: lockdep is turned off. [ 716.624696][ T27] NMI backtrace for cpu 1 [ 716.629012][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.14.0-rc6-next-20210817-syzkaller #0 [ 716.639005][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.649042][ T27] Call Trace: [ 716.652305][ T27] dump_stack_lvl+0xcd/0x134 [ 716.656955][ T27] nmi_cpu_backtrace.cold+0x47/0x144 [ 716.662331][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 716.667605][ T27] nmi_trigger_cpumask_backtrace+0x1ae/0x220 [ 716.673626][ T27] watchdog+0xcb7/0xed0 [ 716.677788][ T27] ? trace_sched_process_hang+0x280/0x280 [ 716.683534][ T27] kthread+0x3e5/0x4d0 [ 716.687697][ T27] ? set_kthread_struct+0x130/0x130 [ 716.692898][ T27] ret_from_fork+0x1f/0x30 [ 716.697490][ T27] Sending NMI from CPU 1 to CPUs 0: [ 716.702717][ C0] NMI backtrace for cpu 0 [ 716.702728][ C0] CPU: 0 PID: 1120 Comm: kworker/u4:4 Not tainted 5.14.0-rc6-next-20210817-syzkaller #0 [ 716.702749][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.702761][ C0] Workqueue: events_unbound toggle_allocation_gate [ 716.702839][ C0] RIP: 0010:insn_get_modrm+0x300/0x7c0 [ 716.702876][ C0] Code: 38 d0 7f 08 84 c0 0f 85 1c 03 00 00 c6 43 24 01 45 31 e4 e8 92 6f 80 fd 44 89 e0 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 7b 6f 80 fd 48 8d 7b 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa [ 716.702895][ C0] RSP: 0018:ffffc90004eaf978 EFLAGS: 00000246 [ 716.702910][ C0] RAX: 0000000000000000 RBX: ffffc90004eafa68 RCX: ffff88801ce30000 [ 716.702924][ C0] RDX: 0000000000000000 RSI: ffff88801ce30000 RDI: 0000000000000003 [ 716.702936][ C0] RBP: ffffc90004eafa8c R08: 0000000000000001 R09: 0000000000000000 [ 716.702948][ C0] R10: ffffffff83f5548b R11: 0000000000000000 R12: 0000000000000000 [ 716.702960][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 716.702972][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 716.702990][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.703003][ C0] CR2: 00007f7befcd9000 CR3: 000000000b68e000 CR4: 00000000001506f0 [ 716.703016][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.703027][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.703039][ C0] Call Trace: [ 716.703044][ C0] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 716.703068][ C0] ? cpumask_any_but+0x155/0x1a0 [ 716.703089][ C0] ? kmem_cache_alloc_bulk+0x188/0x710 [ 716.703133][ C0] insn_get_sib+0x29c/0x330 [ 716.703157][ C0] insn_get_displacement+0x31c/0x660 [ 716.703182][ C0] ? kmem_cache_alloc_bulk+0x179/0x710 [ 716.703206][ C0] ? kmem_cache_alloc_bulk+0x188/0x710 [ 716.703229][ C0] insn_decode+0x473/0x4e0 [ 716.703252][ C0] ? kmem_cache_alloc_bulk+0x179/0x710 [ 716.703276][ C0] arch_jump_entry_size+0xa0/0x110 [ 716.703315][ C0] ? arch_jump_entry_size.part.0+0x10/0x10 [ 716.703336][ C0] ? rcu_read_lock_sched_held+0xd/0x70 [ 716.703365][ C0] ? kmem_cache_alloc_bulk+0x179/0x710 [ 716.703388][ C0] ? kmem_cache_alloc_bulk+0x188/0x710 [ 716.703411][ C0] ? kmem_cache_alloc_bulk+0x179/0x710 [ 716.703437][ C0] ? static_key_disable_cpuslocked+0x108/0x1b0 [ 716.703479][ C0] ? kmem_cache_alloc_bulk+0x3eb/0x710 [ 716.703503][ C0] __jump_label_patch+0x7c/0x1b0 [ 716.703524][ C0] arch_jump_label_transform_queue+0x63/0x100 [ 716.703546][ C0] ? lock_release+0x522/0x720 [ 716.703566][ C0] __jump_label_update+0x12e/0x400 [ 716.703589][ C0] jump_label_update+0x1d5/0x430 [ 716.703611][ C0] static_key_disable_cpuslocked+0x152/0x1b0 [ 716.703634][ C0] static_key_disable+0x16/0x20 [ 716.703654][ C0] toggle_allocation_gate+0x185/0x390 [ 716.703676][ C0] ? lock_release+0x720/0x720 [ 716.703695][ C0] ? wake_up_kfence_timer+0x20/0x20 [ 716.703719][ C0] ? read_word_at_a_time+0xe/0x20 [ 716.703737][ C0] ? strscpy+0xa1/0x2b0 [ 716.703756][ C0] process_one_work+0x98d/0x1630 [ 716.703785][ C0] ? pwq_dec_nr_in_flight+0x320/0x320 [ 716.703812][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 716.703840][ C0] worker_thread+0x658/0x11f0 [ 716.703869][ C0] ? process_one_work+0x1630/0x1630 [ 716.703895][ C0] kthread+0x3e5/0x4d0 [ 716.703917][ C0] ? set_kthread_struct+0x130/0x130 [ 716.703940][ C0] ret_from_fork+0x1f/0x30 [ 716.703969][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.251 msecs [ 716.704714][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 717.059714][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.14.0-rc6-next-20210817-syzkaller #0 [ 717.069196][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 717.079268][ T27] Call Trace: [ 717.082549][ T27] dump_stack_lvl+0xcd/0x134 [ 717.087147][ T27] panic+0x2b0/0x6dd [ 717.091074][ T27] ? __warn_printk+0xf3/0xf3 [ 717.095737][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 717.100958][ T27] ? preempt_schedule_thunk+0x16/0x18 [ 717.106335][ T27] ? nmi_trigger_cpumask_backtrace+0x191/0x220 [ 717.112501][ T27] ? watchdog.cold+0x1b9/0x1de [ 717.117313][ T27] watchdog.cold+0x1ca/0x1de [ 717.121902][ T27] ? trace_sched_process_hang+0x280/0x280 [ 717.127710][ T27] kthread+0x3e5/0x4d0 [ 717.131803][ T27] ? set_kthread_struct+0x130/0x130 [ 717.137008][ T27] ret_from_fork+0x1f/0x30 [ 717.141502][ T27] Kernel Offset: disabled [ 717.145908][ T27] Rebooting in 86400 seconds..