INFO: task kworker/0:1:9 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1     state:D stack:27784 pid:9     tgid:9     ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf15/0x5c80 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe7/0x270 kernel/sched/core.c:6817
 usb_kill_urb.part.0+0x1c6/0x250 drivers/usb/core/urb.c:713
 usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:702
 usb_start_wait_urb+0x251/0x4c0 drivers/usb/core/message.c:65
 usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
 usb_control_msg+0x327/0x4a0 drivers/usb/core/message.c:154
 get_bMaxPacketSize0.constprop.0+0xa5/0x1c0 drivers/usb/core/hub.c:4750
 hub_port_init+0x68c/0x39e0 drivers/usb/core/hub.c:4946
 hub_port_connect drivers/usb/core/hub.c:5394 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5605 [inline]
 port_event drivers/usb/core/hub.c:5765 [inline]
 hub_event+0x2b61/0x4e10 drivers/usb/core/hub.c:5847
 process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
INFO: task syz-executor467:5060 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor467 state:D stack:27216 pid:5060  tgid:5060  ppid:5057   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf15/0x5c80 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe7/0x270 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b4/0x9c0 kernel/locking/mutex.c:752
 device_lock include/linux/device.h:991 [inline]
 usbdev_release+0x87/0x470 drivers/usb/core/devio.c:1096
 __fput+0x270/0xb70 fs/file_table.c:376
 __fput_sync+0x47/0x50 fs/file_table.c:461
 __do_sys_close fs/open.c:1592 [inline]
 __se_sys_close fs/open.c:1577 [inline]
 __x64_sys_close+0x86/0xf0 fs/open.c:1577
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7fdd027c80e0
RSP: 002b:00007ffeb1d588c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdd027c80e0
RDX: 0000000000000007 RSI: 00007ffeb1d58400 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 00007ffeb1d58b78 R14: 0000000000000001 R15: 00007ffeb1d58910
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xf86/0x1210 kernel/hung_task.c:379
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4500 Comm: klogd Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__list_del_entry_valid_or_report+0xc6/0x1c0 lib/list_debug.c:65
Code: 00 00 00 48 8b 01 48 39 f0 75 71 48 8d 7a 08 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 aa 00 00 00 <48> 8b 42 08 48 39 c6 75 5b b8 01 00 00 00 48 83 c4 18 c3 48 c7 c7
RSP: 0018:ffffc9000317f138 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880b9942c00 RCX: 1ffffd400010a182
RDX: ffffea0000850c08 RSI: ffffea0001ea4d08 RDI: ffffea0000850c10
RBP: ffffea0001ea4d08 R08: ffff8880b9942bc0 R09: ffff8880b9942c20
R10: ffff88813fffa740 R11: ffffc9000317f550 R12: dffffc0000000000
R13: ffff8880b9942bc0 R14: ffffea0001ea4d00 R15: dffffc0000000000
FS:  00007f4703520380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559a513c0600 CR3: 000000002839d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del include/linux/list.h:229 [inline]
 __rmqueue_pcplist+0xef/0x1a70 mm/page_alloc.c:2867
 rmqueue_pcplist mm/page_alloc.c:2899 [inline]
 rmqueue mm/page_alloc.c:2936 [inline]
 get_page_from_freelist+0xb97/0x3740 mm/page_alloc.c:3345
 __alloc_pages+0x22e/0x2410 mm/page_alloc.c:4604
 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
 alloc_slab_page mm/slub.c:2191 [inline]
 allocate_slab mm/slub.c:2358 [inline]
 new_slab+0x283/0x3c0 mm/slub.c:2411
 ___slab_alloc+0x4ab/0x1990 mm/slub.c:3544
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3629
 __slab_alloc_node mm/slub.c:3682 [inline]
 slab_alloc_node mm/slub.c:3854 [inline]
 kmem_cache_alloc_node+0x10a/0x340 mm/slub.c:3907
 __alloc_skb+0x287/0x330 net/core/skbuff.c:641
 alloc_skb include/linux/skbuff.h:1298 [inline]
 alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6369
 sock_alloc_send_pskb+0x7e1/0x970 net/core/sock.c:2776
 unix_dgram_sendmsg+0x464/0x1ca0 net/unix/af_unix.c:1974
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0xd5/0x180 net/socket.c:745
 __sys_sendto+0x225/0x310 net/socket.c:2189
 __do_sys_sendto net/socket.c:2201 [inline]
 __se_sys_sendto net/socket.c:2197 [inline]
 __x64_sys_sendto+0xe0/0x1b0 net/socket.c:2197
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f47036829b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd16736a48 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f47036829b5
RDX: 000000000000004e RSI: 00005605aeef6cc0 RDI: 0000000000000003
RBP: 00005605aeef2910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f4703810212 R14: 00007ffd16736b48 R15: 0000000000000000
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.519 msecs