DUID 00:04:d9:3a:76:1c:b4:63:be:bc:0b:c2:08:9c:83:36:98:31 forked to background, child pid 3173 [ 20.243672][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 20.254666][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 71.186985][ T22] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.228' (ECDSA) to the list of known hosts. executing program [ 493.668472][ T3627] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 493.675671][ T3627] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 493.682866][ T3627] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 493.690318][ T3627] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 493.697827][ T3627] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 493.704952][ T3627] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 495.746040][ T917] Bluetooth: hci0: command 0x0409 tx timeout [ 497.826028][ T917] Bluetooth: hci0: command 0x041b tx timeout [ 499.906019][ T917] Bluetooth: hci0: command 0x040f tx timeout [ 501.986047][ T917] Bluetooth: hci0: command 0x0419 tx timeout [ 504.065981][ T917] Bluetooth: hci0: command 0x0405 tx timeout [ 615.985983][ T917] Bluetooth: hci0: command 0x0406 tx timeout [ 716.306122][ T28] INFO: task krfcommd:2705 blocked for more than 143 seconds. [ 716.313594][ T28] Tainted: G W 5.17.0-syzkaller-09727-g34af78c4e616 #0 [ 716.322324][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.331062][ T28] task:krfcommd state:D stack:28984 pid: 2705 ppid: 2 flags:0x00004000 [ 716.340319][ T28] Call Trace: [ 716.343597][ T28] [ 716.346556][ T28] __schedule+0x937/0x1090 [ 716.351091][ T28] ? __sched_text_start+0x8/0x8 [ 716.355956][ T28] ? __mutex_trylock_common+0xb3/0x300 [ 716.361446][ T28] ? __might_sleep+0xe0/0xe0 [ 716.366105][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 716.371302][ T28] schedule+0xeb/0x1b0 [ 716.375440][ T28] schedule_preempt_disabled+0xf/0x20 [ 716.380856][ T28] __mutex_lock_common+0xd1f/0x2590 [ 716.386073][ T28] ? rfcomm_process_sessions+0x21/0x3f0 [ 716.391649][ T28] ? mutex_lock_io_nested+0x60/0x60 [ 716.396856][ T28] ? __mutex_unlock_slowpath+0x244/0x7d0 [ 716.402502][ T28] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.408552][ T28] mutex_lock_nested+0x1a/0x20 [ 716.413321][ T28] rfcomm_process_sessions+0x21/0x3f0 [ 716.418717][ T28] rfcomm_run+0x195/0x2c0 [ 716.423043][ T28] ? rfcomm_security_cfm+0x630/0x630 [ 716.428350][ T28] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.434238][ T28] ? wait_woken+0x1b0/0x1b0 [ 716.438814][ T28] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.444714][ T28] ? _raw_spin_lock_irq+0xdb/0x110 [ 716.449863][ T28] ? __kthread_parkme+0x166/0x1c0 [ 716.454943][ T28] kthread+0x2a3/0x2d0 [ 716.459028][ T28] ? rfcomm_security_cfm+0x630/0x630 [ 716.464308][ T28] ? kthread_blkcg+0xd0/0xd0 [ 716.468939][ T28] ret_from_fork+0x1f/0x30 [ 716.473379][ T28] [ 716.476426][ T28] INFO: task syz-executor721:3630 blocked for more than 143 seconds. [ 716.484477][ T28] Tainted: G W 5.17.0-syzkaller-09727-g34af78c4e616 #0 [ 716.493176][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.501845][ T28] task:syz-executor721 state:D stack:26552 pid: 3630 ppid: 3624 flags:0x00004006 [ 716.511062][ T28] Call Trace: [ 716.514333][ T28] [ 716.517279][ T28] __schedule+0x937/0x1090 [ 716.521691][ T28] ? __sched_text_start+0x8/0x8 [ 716.526566][ T28] ? __local_bh_enable_ip+0x163/0x1f0 [ 716.531992][ T28] ? trace_lock_acquire+0x59/0x190 [ 716.537109][ T28] ? __lock_sock+0x1ca/0x330 [ 716.541744][ T28] ? _local_bh_enable+0xa0/0xa0 [ 716.546675][ T28] schedule+0xeb/0x1b0 [ 716.550738][ T28] __lock_sock+0x1cf/0x330 [ 716.555140][ T28] ? sk_page_frag_refill+0x2f0/0x2f0 [ 716.560468][ T28] ? wake_bit_function+0x230/0x230 [ 716.565599][ T28] ? __rwlock_init+0x140/0x140 [ 716.570403][ T28] ? mutex_lock_io_nested+0x60/0x60 [ 716.575599][ T28] lock_sock_nested+0x9f/0x100 [ 716.580387][ T28] rfcomm_sk_state_change+0x63/0x300 [ 716.585669][ T28] __rfcomm_dlc_close+0x2cc/0x480 [ 716.590722][ T28] rfcomm_dlc_close+0x10d/0x1c0 [ 716.595566][ T28] __rfcomm_sock_close+0x101/0x220 [ 716.600686][ T28] rfcomm_sock_shutdown+0xa5/0x220 [ 716.605793][ T28] rfcomm_sock_release+0x55/0x120 [ 716.610841][ T28] sock_close+0xd8/0x260 [ 716.615079][ T28] ? sock_mmap+0x90/0x90 [ 716.619329][ T28] __fput+0x3fc/0x870 [ 716.623398][ T28] task_work_run+0x146/0x1c0 [ 716.628011][ T28] do_exit+0x5e3/0x20f0 [ 716.632162][ T28] ? get_signal+0x16f8/0x2330 [ 716.636984][ T28] ? mm_update_next_owner+0x6d0/0x6d0 [ 716.642349][ T28] ? __lock_acquire+0x2b00/0x2b00 [ 716.647401][ T28] ? rcu_read_lock_sched_held+0x5f/0x130 [ 716.653088][ T28] ? print_irqtrace_events+0x220/0x220 [ 716.658555][ T28] ? _raw_spin_lock_irq+0xdb/0x110 [ 716.663661][ T28] do_group_exit+0x2af/0x2b0 [ 716.668272][ T28] get_signal+0x1831/0x2330 [ 716.672772][ T28] ? ptrace_notify+0x340/0x340 [ 716.677552][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 716.682754][ T28] arch_do_signal_or_restart+0x9c/0x730 [ 716.688375][ T28] ? __sys_connect_file+0x170/0x170 [ 716.693565][ T28] ? get_sigframe_size+0x10/0x10 [ 716.698516][ T28] ? exit_to_user_mode_prepare+0x102/0x200 [ 716.704368][ T28] exit_to_user_mode_prepare+0x165/0x200 [ 716.710074][ T28] ? trace_irq_disable_rcuidle+0x11/0x170 [ 716.715836][ T28] syscall_exit_to_user_mode+0x2e/0x70 [ 716.721320][ T28] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 716.727228][ T28] RIP: 0033:0x7fe0cd486c39 [ 716.731626][ T28] RSP: 002b:00007fff183b73a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 716.740046][ T28] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007fe0cd486c39 [ 716.748293][ T28] RDX: 0000000000000080 RSI: 0000000020000000 RDI: 0000000000000004 [ 716.756272][ T28] RBP: 0000000000000003 R08: 00007fff183b73d8 R09: 00007fff183b73d8 [ 716.764233][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00005555568a52b8 [ 716.772239][ T28] R13: 0000000000000072 R14: 00007fff183b73c0 R15: 00007fe0cd50de48 [ 716.780222][ T28] [ 716.783240][ T28] INFO: lockdep is turned off. [ 716.788016][ T28] NMI backtrace for cpu 0 [ 716.792331][ T28] CPU: 0 PID: 28 Comm: khungtaskd Tainted: G W 5.17.0-syzkaller-09727-g34af78c4e616 #0 [ 716.803235][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.813274][ T28] Call Trace: [ 716.816543][ T28] [ 716.819459][ T28] dump_stack_lvl+0x1dc/0x2d8 [ 716.824196][ T28] ? show_regs_print_info+0x12/0x12 [ 716.829406][ T28] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 716.835139][ T28] ? trace_lock_acquire+0x59/0x190 [ 716.840233][ T28] nmi_cpu_backtrace+0x45f/0x490 [ 716.845158][ T28] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 716.851294][ T28] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 716.856993][ T28] ? _raw_spin_unlock_irqrestore+0x8b/0x130 [ 716.862868][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 716.868930][ T28] nmi_trigger_cpumask_backtrace+0x16a/0x280 [ 716.874910][ T28] watchdog+0xc82/0xcd0 [ 716.879085][ T28] kthread+0x2a3/0x2d0 [ 716.883132][ T28] ? hungtask_pm_notify+0x50/0x50 [ 716.888136][ T28] ? kthread_blkcg+0xd0/0xd0 [ 716.892708][ T28] ret_from_fork+0x1f/0x30 [ 716.897109][ T28] [ 716.900189][ T28] Sending NMI from CPU 0 to CPUs 1: [ 716.905387][ C1] NMI backtrace for cpu 1 [ 716.905397][ C1] CPU: 1 PID: 3631 Comm: kworker/u4:1 Tainted: G W 5.17.0-syzkaller-09727-g34af78c4e616 #0 [ 716.905413][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.905422][ C1] Workqueue: events_unbound toggle_allocation_gate [ 716.905489][ C1] RIP: 0010:insn_get_prefixes+0x286/0x1930 [ 716.905516][ C1] Code: 05 00 00 00 48 8b 44 24 38 42 80 3c 30 00 48 8b 5c 24 18 74 08 48 89 df e8 97 07 7b fd 48 8b 44 24 20 48 89 03 e9 d6 01 00 00 75 47 29 fd eb 10 e8 6e 47 29 fd eb 05 e8 67 47 29 fd 4c 8b 2c [ 716.905528][ C1] RSP: 0018:ffffc90003a8f638 EFLAGS: 00000292 [ 716.905539][ C1] RAX: 0000000000000000 RBX: ffffc90003a8f9e9 RCX: 1ffff92000751f3c [ 716.905550][ C1] RDX: ffff88801ae69d00 RSI: 00000000000000e9 RDI: 000000000000000f [ 716.905559][ C1] RBP: 1ffffffff03ae465 R08: ffffffff845d2145 R09: ffffc90003a8f980 [ 716.905569][ C1] R10: fffff52000751f3b R11: 0000000000000000 R12: ffffffff81d72330 [ 716.905578][ C1] R13: ffffc90003a8f980 R14: ffffffff81d7232e R15: ffffffff81d7233d [ 716.905588][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 716.905600][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.905610][ C1] CR2: 000055af30d726d8 CR3: 000000000ca8e000 CR4: 00000000003506e0 [ 716.905622][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.905630][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.905639][ C1] Call Trace: [ 716.905643][ C1] [ 716.905648][ C1] ? __text_poke+0x874/0x9f0 [ 716.905685][ C1] ? kmem_cache_alloc+0xdf/0x310 [ 716.905719][ C1] ? trace_lock_release+0x4f/0x150 [ 716.905734][ C1] ? print_irqtrace_events+0x220/0x220 [ 716.905748][ C1] insn_get_opcode+0x1c5/0xa90 [ 716.905763][ C1] ? __lock_acquire+0x2b00/0x2b00 [ 716.905776][ C1] ? _flat_send_IPI_mask+0xf2/0x190 [ 716.905792][ C1] ? trace_lock_acquire+0x59/0x190 [ 716.905806][ C1] insn_get_modrm+0x205/0x760 [ 716.905824][ C1] insn_get_displacement+0x12a/0xa90 [ 716.905841][ C1] insn_get_immediate+0x404/0x1fe0 [ 716.905855][ C1] ? __mutex_trylock_common+0x1a8/0x300 [ 716.905868][ C1] ? kmem_cache_alloc+0xde/0x310 [ 716.905884][ C1] insn_decode+0x350/0x4c0 [ 716.905899][ C1] ? kmem_cache_alloc+0xde/0x310 [ 716.905915][ C1] __jump_label_patch+0xe0/0x2b0 [ 716.905928][ C1] ? kmem_cache_alloc+0xde/0x310 [ 716.905943][ C1] ? arch_jump_label_transform_queue+0xd0/0xd0 [ 716.905956][ C1] ? __mutex_lock_common+0x1914/0x2590 [ 716.905973][ C1] ? kmem_cache_alloc+0xde/0x310 [ 716.905988][ C1] ? kmem_cache_alloc+0xed/0x310 [ 716.906002][ C1] ? kmem_cache_alloc+0xde/0x310 [ 716.906023][ C1] ? static_key_disable_cpuslocked+0x99/0x1b0 [ 716.906054][ C1] ? read_lock_is_recursive+0x10/0x10 [ 716.906068][ C1] ? mutex_lock_io_nested+0x60/0x60 [ 716.906083][ C1] arch_jump_label_transform_queue+0x49/0xd0 [ 716.906098][ C1] __jump_label_update+0x15d/0x350 [ 716.906113][ C1] static_key_disable_cpuslocked+0xcc/0x1b0 [ 716.906128][ C1] static_key_disable+0x16/0x20 [ 716.906141][ C1] toggle_allocation_gate+0x3c8/0x460 [ 716.906155][ C1] ? show_object+0xa0/0xa0 [ 716.906165][ C1] ? do_raw_spin_unlock+0x134/0x8a0 [ 716.906180][ C1] ? __lock_acquire+0x2b00/0x2b00 [ 716.906193][ C1] ? rcu_read_lock_sched_held+0x5f/0x130 [ 716.906209][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 716.906223][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.906240][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 716.906255][ C1] process_one_work+0x83c/0x11a0 [ 716.906291][ C1] ? worker_detach_from_pool+0x260/0x260 [ 716.906307][ C1] ? _raw_spin_lock_irqsave+0x120/0x120 [ 716.906322][ C1] ? kthread_data+0x4d/0xc0 [ 716.906335][ C1] ? wq_worker_running+0x95/0x190 [ 716.906349][ C1] worker_thread+0xa6c/0x1290 [ 716.906365][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.906381][ C1] ? _raw_spin_unlock+0x40/0x40 [ 716.906399][ C1] kthread+0x2a3/0x2d0 [ 716.906411][ C1] ? rcu_lock_release+0x20/0x20 [ 716.906425][ C1] ? kthread_blkcg+0xd0/0xd0 [ 716.906438][ C1] ret_from_fork+0x1f/0x30 [ 716.906459][ C1] [ 716.906465][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.077 msecs [ 716.907432][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 716.907441][ T28] CPU: 0 PID: 28 Comm: khungtaskd Tainted: G W 5.17.0-syzkaller-09727-g34af78c4e616 #0 [ 716.907457][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.907465][ T28] Call Trace: [ 716.907470][ T28] [ 716.907475][ T28] dump_stack_lvl+0x1dc/0x2d8 [ 716.907496][ T28] ? show_regs_print_info+0x12/0x12 [ 716.907516][ T28] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 716.907541][ T28] panic+0x313/0x890 [ 716.907582][ T28] ? schedule_preempt_disabled+0x20/0x20 [ 716.907603][ T28] ? nmi_trigger_cpumask_backtrace+0x206/0x280 [ 716.907618][ T28] ? nmi_panic+0x90/0x90 [ 716.907633][ T28] ? preempt_schedule_thunk+0x16/0x18 [ 716.907649][ T28] ? nmi_trigger_cpumask_backtrace+0x206/0x280 [ 716.907663][ T28] ? nmi_trigger_cpumask_backtrace+0x266/0x280 [ 716.907680][ T28] watchdog+0xcc2/0xcd0 [ 716.907701][ T28] kthread+0x2a3/0x2d0 [ 716.907714][ T28] ? hungtask_pm_notify+0x50/0x50 [ 716.907728][ T28] ? kthread_blkcg+0xd0/0xd0 [ 716.907743][ T28] ret_from_fork+0x1f/0x30 [ 716.907762][ T28] [ 716.910962][ T28] Kernel Offset: disabled [ 717.434422][ T28] Rebooting in 86400 seconds..