rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=921/1/0x4000000000000000 softirq=118658/118659 fqs=5164 
	(t=10502 jiffies g=174989 q=67446)
NMI backtrace for cpu 1
CPU: 1 PID: 22733 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3878 [inline]
 rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:ntfs_collate_names+0x2be/0x3d0 fs/ntfs/unistr.c:116
Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 4c 89 e0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 fa 00 00 00 41 0f b7 1c 24 <bf> 3f 00 00 00 89 de e8 36 1b e5 fe 66 83 fb 3f 76 0b 41 bd 01 00
RSP: 0018:ffffc90013ec7930 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000024 RCX: ffffc90003441000
RDX: 0000000000000000 RSI: ffffffff8292af6f RDI: 0000000000000003
RBP: ffff8880a9074ac2 R08: 0000000000000008 R09: 0000000000000001
R10: ffffffff8292af65 R11: 0000000000000000 R12: ffffffff89bf4740
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000008
 ntfs_lookup_inode_by_name+0x62d/0x34b0 fs/ntfs/dir.c:234
 load_and_init_usnjrnl+0xda/0x1180 fs/ntfs/super.c:1450
 load_system_files fs/ntfs/super.c:2146 [inline]
 ntfs_fill_super+0x7c20/0x8440 fs/ntfs/super.c:2891
 mount_bdev+0x34d/0x410 fs/super.c:1368
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1498
 do_new_mount fs/namespace.c:2988 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3318
 do_mount fs/namespace.c:3331 [inline]
 __do_sys_mount fs/namespace.c:3539 [inline]
 __se_sys_mount fs/namespace.c:3516 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3516
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7032ea601a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7030419fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f7032ea601a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f703041a000
RBP: 00007f703041a040 R08: 00007f703041a040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f703041a000 R15: 0000000020086e00
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 fc                	add    %bh,%ah
   6:	ff                   	(bad)
   7:	df 48 c1             	fisttps -0x3f(%rax)
   a:	ea                   	(bad)
   b:	03 0f                	add    (%rdi),%ecx
   d:	b6 14                	mov    $0x14,%dh
   f:	02 4c 89 e0          	add    -0x20(%rcx,%rcx,4),%cl
  13:	83 e0 07             	and    $0x7,%eax
  16:	83 c0 01             	add    $0x1,%eax
  19:	38 d0                	cmp    %dl,%al
  1b:	7c 08                	jl     0x25
  1d:	84 d2                	test   %dl,%dl
  1f:	0f 85 fa 00 00 00    	jne    0x11f
  25:	41 0f b7 1c 24       	movzwl (%r12),%ebx
* 2a:	bf 3f 00 00 00       	mov    $0x3f,%edi <-- trapping instruction
  2f:	89 de                	mov    %ebx,%esi
  31:	e8 36 1b e5 fe       	callq  0xfee51b6c
  36:	66 83 fb 3f          	cmp    $0x3f,%bx
  3a:	76 0b                	jbe    0x47
  3c:	41                   	rex.B
  3d:	bd                   	.byte 0xbd
  3e:	01 00                	add    %eax,(%rax)