INFO: rcu_tasks detected stalls on tasks:
ffff88807ead3e80: .. nvcsw: 0/0 holdout: 1 idle_cpu: -1/0
task:syz.2.2768      state:R  running task     stack:26304 pid:15679 tgid:15678 ppid:13626  task_flags:0x40044c flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x17dd/0x5830 kernel/sched/core.c:7382
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
 irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:878 [inline]
RIP: 0010:class_rcu_destructor include/linux/rcupdate.h:1216 [inline]
RIP: 0010:unwind_next_frame+0x1b5d/0x2550 arch/x86/kernel/unwind_orc.c:709
Code: 00 00 c6 03 01 4c 8b 6c 24 50 4c 8b 7c 24 10 43 0f b6 04 27 84 c0 0f 85 6d 02 00 00 41 c7 06 00 00 00 00 31 ed e8 93 b7 8b 0a <85> c0 74 3a e8 ba e2 34 00 84 c0 75 31 e8 81 b7 8b 0a 85 c0 74 28
RSP: 0018:ffffc90003857260 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffc90003857318 RCX: ffff88807ead3e80
RDX: ffffc90003857301 RSI: dffffc0000000000 RDI: ffffc90003857310
RBP: 1ffffffff24b7101 R08: ffffc90003857ee0 R09: 0000000000000000
R10: ffffc90003857358 R11: fffff5200070ae6d R12: ffffc90003850000
R13: ffffffff8178798f R14: ffffc90003857308 R15: ffffc90003857ef0
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556
 __call_rcu_common kernel/rcu/tree.c:3287 [inline]
 call_rcu+0x86/0x300 kernel/rcu/tree.c:3395
 destroy_inode fs/inode.c:393 [inline]
 evict+0x987/0xb50 fs/inode.c:847
 dentry_kill+0x1b9/0x910 fs/dcache.c:840
 finish_dput+0x1a/0x260 fs/dcache.c:1015
 vhci_debugfs_remove drivers/bluetooth/hci_vhci.c:678 [inline]
 vhci_release+0xe0/0x1c0 drivers/bluetooth/hci_vhci.c:703
 __fput+0x408/0xa40 fs/file_table.c:513
 fput_close_sync+0x11f/0x240 fs/file_table.c:619
 filp_close_sync+0x6e/0xa0 fs/open.c:1897
 close_files fs/file.c:572 [inline]
 put_files_struct+0x230/0x3c0 fs/file.c:584
 do_exit+0x6f0/0x2360 kernel/exit.c:977
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1123
 get_signal+0x1216/0x12c0 kernel/signal.c:3112
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
 do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbdee75fd8e
RSP: 002b:00007fbdef59df98 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: 0000000000000005 RBX: 00007fbdef59e6c0 RCX: 00007fbdee75fd8e
RDX: 0000000000000002 RSI: 00007fbdee83641a RDI: ffffffffffffff9c
RBP: 00007fbdee836b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007fbdeea26038 R14: 00007fbdeea25fa0 R15: 00007fff13e28818
 </TASK>