Warning: Permanently added '10.128.0.221' (ED25519) to the list of known hosts. executing program [ 204.615290][ T127] usb 1-1: new full-speed USB device number 2 using dummy_hcd [ 204.817531][ T127] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x82 has invalid maxpacket 1312, setting to 64 [ 204.828656][ T127] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9374, bcdDevice=bc.3b [ 204.837807][ T127] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 204.849844][ T127] usb 1-1: config 0 descriptor?? [ 204.857121][ T4280] raw-gadget.0 gadget.0: fail, usb_ep_enable returned -22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 255.728032][ T1277] ieee802154 phy0 wpan0: encryption failed: -22 [ 255.734606][ T1277] ieee802154 phy1 wpan1: encryption failed: -22 executing program executing program [ 265.766833][ T3623] udevd[3623]: worker [4279] /devices/platform/dummy_hcd.0/usb1/1-1 is taking a long time executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 317.157509][ T1277] ieee802154 phy0 wpan0: encryption failed: -22 [ 317.163897][ T1277] ieee802154 phy1 wpan1: encryption failed: -22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 367.715302][ T28] INFO: task udevd:4279 blocked for more than 143 seconds. [ 367.722673][ T28] Not tainted 6.1.140-syzkaller #0 [ 367.735489][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 367.744350][ T28] task:udevd state:D stack:27208 pid:4279 ppid:3623 flags:0x00004002 [ 367.760964][ T28] Call Trace: [ 367.764310][ T28] [ 367.774406][ T28] __schedule+0x10e9/0x40d0 [ 367.783336][ T28] ? release_firmware_map_entry+0x18a/0x18a [ 367.793790][ T28] ? __mutex_trylock_common+0x80/0x250 [ 367.803650][ T28] ? trace_raw_output_contention_end+0xd0/0xd0 [ 367.814473][ T28] schedule+0xb9/0x180 [ 367.822991][ T28] schedule_preempt_disabled+0xf/0x20 [ 367.832782][ T28] __mutex_lock+0x555/0xaf0 [ 367.841644][ T28] ? __mutex_lock+0x3a5/0xaf0 [ 367.850588][ T28] ? uevent_show+0x16c/0x320 [ 367.859766][ T28] ? mutex_lock_nested+0x10/0x10 [ 367.864790][ T28] uevent_show+0x16c/0x320 [ 367.876046][ T28] dev_attr_show+0x50/0xb0 [ 367.880629][ T28] sysfs_kf_seq_show+0x349/0x4b0 [ 367.892657][ T28] ? device_get_ownership+0xa0/0xa0 [ 367.902056][ T28] seq_read_iter+0x49b/0xd50 [ 367.911172][ T28] ? common_file_perm+0x171/0x1c0 [ 367.920886][ T28] vfs_read+0x434/0x920 [ 367.929436][ T28] ? do_raw_spin_unlock+0x11d/0x230 [ 367.934783][ T28] ? kernel_read+0x1e0/0x1e0 [ 367.946212][ T28] ? __x64_sys_newfstat+0x171/0x1c0 [ 367.951497][ T28] ? __fdget_pos+0x2b5/0x360 [ 367.963081][ T28] ksys_read+0x143/0x240 [ 367.972040][ T28] ? vfs_write+0x960/0x960 [ 367.981094][ T28] ? lockdep_hardirqs_on+0x94/0x140 [ 367.990627][ T28] do_syscall_64+0x4c/0xa0 [ 367.999731][ T28] ? clear_bhb_loop+0x60/0xb0 [ 368.004483][ T28] ? clear_bhb_loop+0x60/0xb0 [ 368.016241][ T28] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 368.022310][ T28] RIP: 0033:0x7f4d8f2a7407 [ 368.033953][ T28] RSP: 002b:00007ffc02a04d70 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 368.046752][ T28] RAX: ffffffffffffffda RBX: 00007f4d8f9e8880 RCX: 00007f4d8f2a7407 [ 368.054784][ T28] RDX: 0000000000001000 RSI: 000055ee31fee9b0 RDI: 0000000000000008 [ 368.069867][ T28] RBP: 00007f4d8f3efff0 R08: 0000000000000000 R09: 0000000000000000 [ 368.082106][ T28] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a [ 368.094439][ T28] R13: 00007f4d8f3efea0 R14: 0000000000000000 R15: 000055ee31fefed0 [ 368.106875][ T28] [ 368.109976][ T28] [ 368.109976][ T28] Showing all locks held in the system: [ 368.125620][ T28] 1 lock held by rcu_tasks_kthre/12: [ 368.135270][ T28] #0: ffffffff8c92b4b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 [ 368.152077][ T28] 1 lock held by rcu_tasks_trace/13: [ 368.161563][ T28] #0: ffffffff8c92bcd0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 [ 368.177009][ T28] 1 lock held by khungtaskd/28: [ 368.181906][ T28] #0: ffffffff8c92ab20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 [ 368.198691][ T28] 5 locks held by kworker/0:2/127: [ 368.203966][ T28] 2 locks held by getty/4011: [ 368.215712][ T28] #0: ffff88814d511098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 368.230118][ T28] #1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380 [ 368.244575][ T28] 4 locks held by udevd/4279: [ 368.253577][ T28] #0: ffff88802ad56e80 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xad/0xd50 [ 368.267064][ T28] #1: ffff888028a89488 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x51/0x3b0 [ 368.280465][ T28] #2: ffff88801a2ab918 (kn->active#5){.+.+}-{0:0}, at: kernfs_seq_start+0x71/0x3b0 [ 368.294279][ T28] #3: ffff888143fd2190 (&dev->mutex){....}-{3:3}, at: uevent_show+0x16c/0x320 [ 368.307686][ T28] [ 368.310050][ T28] ============================================= [ 368.310050][ T28] [ 368.326218][ T28] NMI backtrace for cpu 1 [ 368.330604][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.140-syzkaller #0 [ 368.338574][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 368.348656][ T28] Call Trace: [ 368.352039][ T28] [ 368.354987][ T28] dump_stack_lvl+0x168/0x22e [ 368.359701][ T28] ? preempt_schedule_thunk+0x16/0x18 [ 368.365476][ T28] ? show_regs_print_info+0x12/0x12 [ 368.370704][ T28] ? load_image+0x3b0/0x3b0 [ 368.375231][ T28] ? vprintk_emit+0x571/0x680 [ 368.379945][ T28] ? printk_sprint+0x460/0x460 [ 368.384778][ T28] nmi_cpu_backtrace+0x3f4/0x470 [ 368.389760][ T28] ? nmi_trigger_cpumask_backtrace+0x450/0x450 [ 368.395949][ T28] ? _printk+0xcc/0x110 [ 368.400129][ T28] ? load_image+0x3b0/0x3b0 [ 368.404678][ T28] ? load_image+0x3b0/0x3b0 [ 368.409211][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 368.415326][ T28] nmi_trigger_cpumask_backtrace+0x1d4/0x450 [ 368.421346][ T28] watchdog+0xeee/0xf30 [ 368.425543][ T28] ? watchdog+0x1ed/0xf30 [ 368.429906][ T28] kthread+0x29d/0x330 [ 368.434005][ T28] ? hungtask_pm_notify+0x40/0x40 [ 368.439057][ T28] ? kthread_blkcg+0xd0/0xd0 [ 368.443680][ T28] ret_from_fork+0x1f/0x30 [ 368.448140][ T28] [ 368.451338][ T28] Sending NMI from CPU 1 to CPUs 0: [ 368.456614][ C0] NMI backtrace for cpu 0 [ 368.456625][ C0] CPU: 0 PID: 127 Comm: kworker/0:2 Not tainted 6.1.140-syzkaller #0 [ 368.456643][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 368.456654][ C0] Workqueue: usb_hub_wq hub_event [ 368.456673][ C0] RIP: 0010:deref_stack_reg+0x1cf/0x230 [ 368.456695][ C0] Code: 24 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 b3 d6 99 00 4c 89 33 b0 01 eb 02 31 c0 48 83 c4 20 5b 41 5c 41 5d <41> 5e 41 5f 5d c3 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c b8 fe ff [ 368.456717][ C0] RSP: 0018:ffffc900000072b0 EFLAGS: 00000082 [ 368.456731][ C0] RAX: 1ffff92000000e01 RBX: ffffc900000073a8 RCX: 0000000000000001 [ 368.456743][ C0] RDX: ffffc900000073e8 RSI: dffffc0000000000 RDI: ffffc90002d67268 [ 368.456756][ C0] RBP: 1ffff92000000e75 R08: ffffc90002d67268 R09: ffffc900000073f8 [ 368.456769][ C0] R10: fffff52000000e81 R11: 1ffff92000000e7f R12: ffffffff8ebf106b [ 368.456781][ C0] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 368.456793][ C0] FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 368.456807][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 368.456819][ C0] CR2: 00007fff7c892c30 CR3: 000000007b3b0000 CR4: 00000000003506f0 [ 368.456834][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 368.456844][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 368.456854][ C0] Call Trace: [ 368.456859][ C0] [ 368.456865][ C0] unwind_next_frame+0x1758/0x20b0 [ 368.456889][ C0] ? bus_probe_device+0xbc/0x1e0 [ 368.456916][ C0] ? stack_trace_save+0xe0/0xe0 [ 368.456936][ C0] arch_stack_walk+0x10c/0x140 [ 368.456957][ C0] ? device_add+0xa00/0xfb0 [ 368.456978][ C0] stack_trace_save+0x98/0xe0 [ 368.456997][ C0] ? stack_trace_snprint+0xf0/0xf0 [ 368.457018][ C0] ? __lock_acquire+0x13c0/0x7c50 [ 368.457040][ C0] ? mark_lock+0x94/0x320 [ 368.457063][ C0] kasan_set_track+0x4b/0x70 [ 368.457088][ C0] ? kasan_set_track+0x4b/0x70 [ 368.457111][ C0] ? kasan_save_free_info+0x2d/0x50 [ 368.457127][ C0] ? ____kasan_slab_free+0x126/0x1e0 [ 368.457151][ C0] ? slab_free_freelist_hook+0x131/0x1a0 [ 368.457173][ C0] ? __kmem_cache_free+0xb6/0x1f0 [ 368.457192][ C0] ? skb_release_data+0x5db/0x7c0 [ 368.457216][ C0] ? consume_skb+0xa2/0x100 [ 368.457238][ C0] ? ath6kl_usb_recv_complete+0x1d2/0x4d0 [ 368.457262][ C0] ? __usb_hcd_giveback_urb+0x35f/0x520 [ 368.457280][ C0] ? dummy_timer+0x888/0x31b0 [ 368.457298][ C0] ? __hrtimer_run_queues+0x522/0xc80 [ 368.457314][ C0] ? hrtimer_run_softirq+0x176/0x240 [ 368.457331][ C0] ? handle_softirqs+0x2a1/0x920 [ 368.457355][ C0] ? __irq_exit_rcu+0x12f/0x220 [ 368.457379][ C0] ? irq_exit_rcu+0x5/0x20 [ 368.457402][ C0] ? sysvec_apic_timer_interrupt+0xa0/0xc0 [ 368.457435][ C0] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 368.457452][ C0] ? ___slab_alloc+0x106f/0x1220 [ 368.457471][ C0] ? __kmem_cache_alloc_node+0x1a0/0x260 [ 368.457489][ C0] ? __kmalloc_node_track_caller+0x9e/0x230 [ 368.457506][ C0] ? __alloc_skb+0x22a/0x7e0 [ 368.457527][ C0] ? __netdev_alloc_skb+0x107/0x4d0 [ 368.457549][ C0] ? ath6kl_usb_post_recv_transfers+0x207/0x6f0 [ 368.457573][ C0] ? ath6kl_usb_power_on+0x66/0x280 [ 368.457595][ C0] ? ath6kl_core_init+0x1ce/0x10c0 [ 368.457616][ C0] ? ath6kl_usb_probe+0x144a/0x1540 [ 368.457638][ C0] ? usb_probe_interface+0x5a0/0xaf0 [ 368.457659][ C0] ? really_probe+0x2aa/0xc70 [ 368.457673][ C0] ? __driver_probe_device+0x18c/0x330 [ 368.457698][ C0] ? driver_probe_device+0x4f/0x420 [ 368.457712][ C0] ? __device_attach_driver+0x2c6/0x510 [ 368.457727][ C0] ? bus_for_each_drv+0x175/0x200 [ 368.457749][ C0] ? __device_attach+0x29b/0x460 [ 368.457773][ C0] ? bus_probe_device+0xbc/0x1e0 [ 368.457807][ C0] ? __kmem_cache_free+0xb6/0x1f0 [ 368.457825][ C0] kasan_save_free_info+0x2d/0x50 [ 368.457842][ C0] ____kasan_slab_free+0x126/0x1e0 [ 368.457869][ C0] slab_free_freelist_hook+0x131/0x1a0 [ 368.457892][ C0] ? skb_release_data+0x5db/0x7c0 [ 368.457916][ C0] __kmem_cache_free+0xb6/0x1f0 [ 368.457937][ C0] skb_release_data+0x5db/0x7c0 [ 368.457965][ C0] consume_skb+0xa2/0x100 [ 368.457989][ C0] ath6kl_usb_recv_complete+0x1d2/0x4d0 [ 368.458016][ C0] __usb_hcd_giveback_urb+0x35f/0x520 [ 368.458036][ C0] dummy_timer+0x888/0x31b0 [ 368.458069][ C0] ? mark_lock+0x94/0x320 [ 368.458094][ C0] ? lock_chain_count+0x20/0x20 [ 368.458114][ C0] ? _raw_spin_lock_irqsave+0xb0/0xf0 [ 368.458139][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 368.458166][ C0] ? dummy_free_streams+0x530/0x530 [ 368.458192][ C0] __hrtimer_run_queues+0x522/0xc80 [ 368.458208][ C0] ? ktime_get_update_offsets_now+0x95/0x3e0 [ 368.458228][ C0] ? ktime_get_update_offsets_now+0x95/0x3e0 [ 368.458251][ C0] ? dummy_free_streams+0x530/0x530 [ 368.458275][ C0] ? hrtimer_interrupt+0x8d0/0x8d0 [ 368.458296][ C0] hrtimer_run_softirq+0x176/0x240 [ 368.458316][ C0] handle_softirqs+0x2a1/0x920 [ 368.458344][ C0] ? __irq_exit_rcu+0x12f/0x220 [ 368.458372][ C0] ? do_softirq+0x200/0x200 [ 368.458398][ C0] ? irqtime_account_irq+0xb2/0x1b0 [ 368.458425][ C0] __irq_exit_rcu+0x12f/0x220 [ 368.458454][ C0] ? irq_exit_rcu+0x20/0x20 [ 368.458484][ C0] irq_exit_rcu+0x5/0x20 [ 368.458507][ C0] sysvec_apic_timer_interrupt+0xa0/0xc0 [ 368.458534][ C0] [ 368.458538][ C0] [ 368.458543][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 368.458559][ C0] RIP: 0010:___slab_alloc+0x106f/0x1220 [ 368.458580][ C0] Code: 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 f7 44 24 70 00 02 00 00 75 3a f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 78 0f 85 ac 00 00 00 4c 89 f8 48 81 c4 80 00 00 00 5b [ 368.458592][ C0] RSP: 0018:ffffc90002d669d0 EFLAGS: 00000206 [ 368.458605][ C0] RAX: 5400fd04232c9c00 RBX: ffff8880b8e3e810 RCX: 5400fd04232c9c00 [ 368.458618][ C0] RDX: dffffc0000000000 RSI: ffffffff8a6c0000 RDI: ffffffff8abf1260 [ 368.458630][ C0] RBP: 0000000000000202 R08: dffffc0000000000 R09: fffffbfff2117056 [ 368.458642][ C0] R10: fffffbfff2117056 R11: 1ffffffff2117055 R12: ffff8880b8e3e810 [ 368.458654][ C0] R13: ffff8880b8e3e7f0 R14: 0000000000000000 R15: ffff8880637e8000 [ 368.458675][ C0] ? ___slab_alloc+0x20e/0x1220 [ 368.458695][ C0] ? __netdev_alloc_skb+0x107/0x4d0 [ 368.458720][ C0] ? __netdev_alloc_skb+0x107/0x4d0 [ 368.458744][ C0] __kmem_cache_alloc_node+0x1a0/0x260 [ 368.458766][ C0] ? __netdev_alloc_skb+0x107/0x4d0 [ 368.458788][ C0] __kmalloc_node_track_caller+0x9e/0x230 [ 368.458807][ C0] ? __netdev_alloc_skb+0x107/0x4d0 [ 368.458829][ C0] __alloc_skb+0x22a/0x7e0 [ 368.458854][ C0] __netdev_alloc_skb+0x107/0x4d0 [ 368.458878][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 368.458902][ C0] ? __alloc_skb+0x7e0/0x7e0 [ 368.458923][ C0] ? usb_hcd_submit_urb+0x32c/0x19c0 [ 368.458945][ C0] ath6kl_usb_post_recv_transfers+0x207/0x6f0 [ 368.458977][ C0] ath6kl_usb_power_on+0x66/0x280 [ 368.459001][ C0] ath6kl_core_init+0x1ce/0x10c0 [ 368.459023][ C0] ? lockdep_softirqs_off+0x420/0x420 [ 368.459049][ C0] ? ath6kl_core_rx_complete+0x70/0x70 [ 368.459074][ C0] ? ath6kl_core_create+0x7d6/0x980 [ 368.459098][ C0] ath6kl_usb_probe+0x144a/0x1540 [ 368.459128][ C0] usb_probe_interface+0x5a0/0xaf0 [ 368.459155][ C0] ? usb_register_driver+0x3d0/0x3d0 [ 368.459177][ C0] really_probe+0x2aa/0xc70 [ 368.459194][ C0] ? pm_runtime_barrier+0x147/0x1c0 [ 368.459220][ C0] __driver_probe_device+0x18c/0x330 [ 368.459248][ C0] driver_probe_device+0x4f/0x420 [ 368.459265][ C0] __device_attach_driver+0x2c6/0x510 [ 368.459280][ C0] ? coredump_store+0x90/0x90 [ 368.459296][ C0] bus_for_each_drv+0x175/0x200 [ 368.459319][ C0] ? _raw_spin_unlock+0x40/0x40 [ 368.459342][ C0] ? subsys_find_device_by_id+0x350/0x350 [ 368.459371][ C0] __device_attach+0x29b/0x460 [ 368.459398][ C0] ? device_attach+0x20/0x20 [ 368.459424][ C0] ? kobject_uevent_env+0x35f/0x8a0 [ 368.459448][ C0] bus_probe_device+0xbc/0x1e0 [ 368.459470][ C0] ? device_add+0x97c/0xfb0 [ 368.459490][ C0] device_add+0xa00/0xfb0 [ 368.459514][ C0] usb_set_configuration+0x1991/0x1fd0 [ 368.459548][ C0] usb_generic_driver_probe+0x89/0x150 [ 368.459571][ C0] usb_probe_device+0x139/0x270 [ 368.459593][ C0] ? usb_register_device_driver+0x230/0x230 [ 368.459615][ C0] really_probe+0x2aa/0xc70 [ 368.459631][ C0] ? pm_runtime_barrier+0x147/0x1c0 [ 368.459656][ C0] __driver_probe_device+0x18c/0x330 [ 368.459684][ C0] driver_probe_device+0x4f/0x420 [ 368.459701][ C0] __device_attach_driver+0x2c6/0x510 [ 368.459716][ C0] ? coredump_store+0x90/0x90 [ 368.459731][ C0] bus_for_each_drv+0x175/0x200 [ 368.459755][ C0] ? _raw_spin_unlock+0x40/0x40 [ 368.459777][ C0] ? subsys_find_device_by_id+0x350/0x350 [ 368.459806][ C0] __device_attach+0x29b/0x460 [ 368.459833][ C0] ? device_attach+0x20/0x20 [ 368.459857][ C0] ? __kmem_cache_free+0xb6/0x1f0 [ 368.459878][ C0] ? kobject_uevent_env+0x35f/0x8a0 [ 368.459895][ C0] bus_probe_device+0xbc/0x1e0 [ 368.459918][ C0] ? device_add+0x97c/0xfb0 [ 368.459938][ C0] device_add+0xa00/0xfb0 [ 368.459961][ C0] usb_new_device+0xd4d/0x1620 [ 368.459992][ C0] ? lock_chain_count+0x20/0x20 [ 368.460013][ C0] ? usb_disconnect+0x8a0/0x8a0 [ 368.460038][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 368.460061][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 368.460088][ C0] hub_event+0x2b02/0x5210 [ 368.460125][ C0] ? led_work+0x6e0/0x6e0 [ 368.460140][ C0] ? read_lock_is_recursive+0x10/0x10 [ 368.460161][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 368.460185][ C0] ? _raw_spin_unlock+0x40/0x40 [ 368.460210][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 368.460235][ C0] ? process_one_work+0x7a1/0x1160 [ 368.460252][ C0] process_one_work+0x898/0x1160 [ 368.460277][ C0] ? worker_detach_from_pool+0x240/0x240 [ 368.460297][ C0] ? _raw_spin_lock_irq+0xab/0xe0 [ 368.460319][ C0] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 368.460343][ C0] ? kthread_data+0x4b/0xc0 [ 368.460368][ C0] worker_thread+0xaa2/0x1250 [ 368.460394][ C0] ? __kthread_parkme+0x162/0x1c0 [ 368.460419][ C0] kthread+0x29d/0x330 [ 368.460452][ C0] ? worker_clr_flags+0x1a0/0x1a0 [ 368.460469][ C0] ? kthread_blkcg+0xd0/0xd0 [ 368.460493][ C0] ret_from_fork+0x1f/0x30 [ 368.460522][ C0] [ 369.508474][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 369.515387][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.140-syzkaller #0 [ 369.523326][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 369.533424][ T28] Call Trace: [ 369.536727][ T28] [ 369.539676][ T28] dump_stack_lvl+0x168/0x22e [ 369.544387][ T28] ? memcpy+0x3c/0x60 [ 369.548397][ T28] ? show_regs_print_info+0x12/0x12 [ 369.553631][ T28] ? load_image+0x3b0/0x3b0 [ 369.558171][ T28] panic+0x2c9/0x710 [ 369.562114][ T28] ? schedule_preempt_disabled+0x20/0x20 [ 369.567861][ T28] ? bpf_jit_dump+0xd0/0xd0 [ 369.572400][ T28] ? __irq_work_queue_local+0x12c/0x190 [ 369.577989][ T28] ? nmi_trigger_cpumask_backtrace+0x35b/0x450 [ 369.584271][ T28] ? nmi_trigger_cpumask_backtrace+0x360/0x450 [ 369.590458][ T28] watchdog+0xf2d/0xf30 [ 369.594642][ T28] ? watchdog+0x1ed/0xf30 [ 369.599001][ T28] kthread+0x29d/0x330 [ 369.603165][ T28] ? hungtask_pm_notify+0x40/0x40 [ 369.608214][ T28] ? kthread_blkcg+0xd0/0xd0 [ 369.612839][ T28] ret_from_fork+0x1f/0x30 [ 369.617288][ T28] [ 369.620565][ T28] Kernel Offset: disabled [ 369.624899][ T28] Rebooting in 86400 seconds..