INFO: task kworker/0:0:25907 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0     state:D stack:24136 pid:25907 ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6638
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
 add_early_randomness+0x1a/0x170 drivers/char/hw_random/core.c:69
 hwrng_register+0x3b6/0x530 drivers/char/hw_random/core.c:585
 chaoskey_probe+0x7e8/0xc30 drivers/usb/misc/chaoskey.c:205
 usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:560 [inline]
 really_probe+0x249/0xb90 drivers/base/dd.c:639
 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808
 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbd5/0x1e90 drivers/base/core.c:3517
 usb_set_configuration+0x1019/0x1900 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd4/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:560 [inline]
 really_probe+0x249/0xb90 drivers/base/dd.c:639
 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808
 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbd5/0x1e90 drivers/base/core.c:3517
 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573
 hub_port_connect drivers/usb/core/hub.c:5353 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
 port_event drivers/usb/core/hub.c:5653 [inline]
 hub_event+0x26c7/0x45c0 drivers/usb/core/hub.c:5735
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xc71/0xfc0 kernel/hung_task.c:377
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 25929 Comm: kworker/0:15 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: events drain_vmap_area_work
RIP: 0010:expire_timers kernel/time/timer.c:1512 [inline]
RIP: 0010:__run_timers.part.0+0x64f/0xaf0 kernel/time/timer.c:1790
Code: 00 00 ad de 48 c7 45 08 00 00 00 00 48 89 45 00 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 f4 02 00 00 48 8d 7d 20 48 8b 5d 18 <48> 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 74 08 3c 03 0f 8e ca 02
RSP: 0018:ffffc90000007e08 EFLAGS: 00000046
RAX: 1ffff1100f2becb8 RBX: ffffffff814ef2d0 RCX: 0000000000000100
RDX: ffff88801e0fba80 RSI: ffffffff816c152b RDI: ffff8880795f65c8
RBP: ffff8880795f65a8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000008c07e R12: ffffc90000007e88
R13: ffffc90000007e88 R14: dffffc0000000000 R15: ffff8880b9a283c0
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f32ff8d53be CR3: 000000007f178000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1f7/0xad8 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data+0x21/0x90 kernel/kcov.c:236
Code: 84 00 00 00 00 00 0f 1f 00 65 8b 05 39 d7 85 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25 80 6f 02 00 <a9> 00 01 ff 00 74 0e 85 f6 74 59 8b 82 8c 15 00 00 85 c0 74 4f 8b
RSP: 0018:ffffc900030ffaa0 EFLAGS: 00000246
RAX: 0000000080000002 RBX: ffff88807b2ea000 RCX: ffffffff8136c47e
RDX: ffff88801e0fba80 RSI: 0000000000000000 RDI: 0000000000000006
RBP: ffff8880fb2ea000 R08: 0000000000000006 R09: ffff8880fb2ea000
R10: 000000007b2ea000 R11: ffffea00005c39c0 R12: 000000007b2ea000
R13: 0000000000000000 R14: ffff88801c33b468 R15: fffff5200068c000
 __phys_addr+0x4e/0x140 arch/x86/mm/physaddr.c:28
 free_pages mm/page_alloc.c:5651 [inline]
 free_pages+0x20/0x50 mm/page_alloc.c:5647
 kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:372
 apply_to_pte_range mm/memory.c:2640 [inline]
 apply_to_pmd_range mm/memory.c:2684 [inline]
 apply_to_pud_range mm/memory.c:2720 [inline]
 apply_to_p4d_range mm/memory.c:2756 [inline]
 __apply_to_page_range+0x68c/0x1030 mm/memory.c:2790
 kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:486
 __purge_vmap_area_lazy+0x885/0x1c50 mm/vmalloc.c:1770
 drain_vmap_area_work+0x52/0xe0 mm/vmalloc.c:1799
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>