INFO: task syz-executor010:6835 blocked for more than 143 seconds.
      Not tainted 5.9.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor010 state:D stack:26840 pid: 6835 ppid:  6829 flags:0x20020000
Call Trace:
 context_switch kernel/sched/core.c:3778 [inline]
 __schedule+0x8e5/0x21e0 kernel/sched/core.c:4527
 schedule+0xd0/0x2a0 kernel/sched/core.c:4602
 schedule_timeout+0x1d8/0x250 kernel/time/timer.c:1855
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion_timeout+0x15e/0x270 kernel/sched/completion.c:157
 usb_start_wait_urb+0x144/0x2b0 drivers/usb/core/message.c:63
 usb_bulk_msg+0x226/0x550 drivers/usb/core/message.c:254
 do_proc_bulk+0x39b/0x710 drivers/usb/core/devio.c:1231
 proc_bulk drivers/usb/core/devio.c:1268 [inline]
 usbdev_do_ioctl drivers/usb/core/devio.c:2542 [inline]
 usbdev_ioctl+0x586/0x3360 drivers/usb/core/devio.c:2708
 compat_ptr_ioctl+0x67/0x90 fs/ioctl.c:789
 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842
 do_syscall_32_irqs_on arch/x86/entry/common.c:84 [inline]
 __do_fast_syscall_32+0x57/0x80 arch/x86/entry/common.c:126
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:149
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f34549
Code: Bad RIP value.
RSP: 002b:00000000ffc1de1c EFLAGS: 00000217 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000c0185502
RDX: 0000000020000000 RSI: 0000000000000036 RDI: 0000000000000003
RBP: 000000008108551b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Showing all locks held in the system:
1 lock held by khungtaskd/1165:
 #0: ffffffff89bd6900 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:5825

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 1165 Comm: khungtaskd Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b3/0x223 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0xd7d/0x1000 kernel/hung_task.c:295
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3898 Comm: systemd-journal Not tainted 5.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_preemption_disabled+0x22/0x130 lib/smp_processor_id.c:16
Code: e8 33 06 a5 fb eb 9f cc 41 56 41 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 25 f8 0d 78 65 8b 1d 3e 63 0e 78 <81> e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db 74 11 0f 1f 44
RSP: 0018:ffffc90005387928 EFLAGS: 00000086
RAX: 0000000000000001 RBX: 0000000080000003 RCX: ffffffff81ab1bda
RDX: dffffc0000000000 RSI: ffffffff88941820 RDI: ffffffff88941860
RBP: ffffffff88941860 R08: 0000000000000000 R09: ffffffff8ab2364f
R10: fffffbfff15646c9 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff88941820 R14: ffff88812fffb700 R15: dffffc0000000000
FS:  00007fe60e53b8c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe60b8db000 CR3: 0000000092824000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:326 [inline]
 rcu_is_watching+0x11/0xb0 kernel/rcu/tree.c:1111
 rcu_read_lock_held_common kernel/rcu/update.c:119 [inline]
 rcu_read_lock_sched_held+0x1c/0xb0 kernel/rcu/update.c:134
 trace_mm_page_alloc_zone_locked include/trace/events/kmem.h:248 [inline]
 trace_mm_page_alloc_zone_locked+0x1aa/0x220 include/trace/events/kmem.h:248
 __rmqueue mm/page_alloc.c:2813 [inline]
 rmqueue mm/page_alloc.c:3390 [inline]
 get_page_from_freelist+0x1a8f/0x37f0 mm/page_alloc.c:3828
 __alloc_pages_nodemask+0x2cf/0x790 mm/page_alloc.c:4882
 __alloc_pages include/linux/gfp.h:509 [inline]
 __alloc_pages_node include/linux/gfp.h:522 [inline]
 kmem_getpages mm/slab.c:1376 [inline]
 cache_grow_begin+0x71/0x430 mm/slab.c:2590
 cache_alloc_refill+0x27b/0x340 mm/slab.c:2962
 ____cache_alloc mm/slab.c:3045 [inline]
 ____cache_alloc mm/slab.c:3028 [inline]
 __do_cache_alloc mm/slab.c:3268 [inline]
 slab_alloc mm/slab.c:3304 [inline]
 kmem_cache_alloc+0x380/0x3a0 mm/slab.c:3482
 getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
 getname_flags include/linux/audit.h:320 [inline]
 getname+0x8e/0xd0 fs/namei.c:209
 do_sys_openat2+0xf5/0x420 fs/open.c:1162
 do_sys_open fs/open.c:1184 [inline]
 __do_sys_open fs/open.c:1192 [inline]
 __se_sys_open fs/open.c:1188 [inline]
 __x64_sys_open+0x119/0x1c0 fs/open.c:1188
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fe60dacb840
Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24
RSP: 002b:00007ffef6ad6018 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffef6ad6320 RCX: 00007fe60dacb840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055e0db336760
RBP: 000000000000000d R08: 000000000000c0c1 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000055e0db332040 R14: 00007ffef6ad62e0 R15: 000055e0db33d860