BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 30321 Comm: syz-executor.3 Not tainted 5.15.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 add_chain_cache kernel/locking/lockdep.c:3637 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3736 [inline]
 validate_chain kernel/locking/lockdep.c:3757 [inline]
 __lock_acquire.cold+0x372/0x3ab kernel/locking/lockdep.c:5015
 lock_acquire kernel/locking/lockdep.c:5625 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
 do_write_seqcount_begin_nested include/linux/seqlock.h:520 [inline]
 do_write_seqcount_begin include/linux/seqlock.h:545 [inline]
 vtime_task_switch_generic+0xb5/0x5a0 kernel/sched/cputime.c:768
 vtime_task_switch include/linux/vtime.h:95 [inline]
 finish_task_switch.isra.0+0x6cf/0xb80 kernel/sched/core.c:4808
 context_switch kernel/sched/core.c:4943 [inline]
 __schedule+0xb4c/0x5960 kernel/sched/core.c:6287
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6687
 irqentry_exit+0x31/0x80 kernel/entry/common.c:425
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5593
Code: b2 a5 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90002fbf7b0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920005f7ef8 RCX: 0000000000000001
RDX: 1ffff11006ebf863 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8fcff9f7
R10: fffffbfff1f9ff3e R11: 0000000000000273 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8bac2460 R15: 0000000000000000
 fs_reclaim_acquire mm/page_alloc.c:4556 [inline]
 fs_reclaim_acquire+0xd2/0x160 mm/page_alloc.c:4547
 might_alloc include/linux/sched/mm.h:198 [inline]
 slab_pre_alloc_hook mm/slab.h:492 [inline]
 slab_alloc_node mm/slub.c:3127 [inline]
 slab_alloc mm/slub.c:3221 [inline]
 kmem_cache_alloc_trace+0x3b/0x3c0 mm/slub.c:3238
 kmalloc include/linux/slab.h:591 [inline]
 __kthread_create_on_node+0xd2/0x410 kernel/kthread.c:364
 kthread_create_on_node+0xbb/0xf0 kernel/kthread.c:453
 attach_store+0x37e/0x9c0 drivers/usb/usbip/vhci_sysfs.c:375
 dev_attr_store+0x50/0x80 drivers/base/core.c:2113
 sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:139
 kernfs_fop_write_iter+0x342/0x500 fs/kernfs/file.c:296
 call_write_iter include/linux/fs.h:2163 [inline]
 new_sync_write+0x429/0x660 fs/read_write.c:507
 vfs_write+0x7cf/0xae0 fs/read_write.c:594
 ksys_write+0x12d/0x250 fs/read_write.c:647
 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: 0033:0x7f3d419a15ff
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48
RSP: 002b:00007f3d3ef63b90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f3d419a15ff
RDX: 0000000000000008 RSI: 00007f3d3ef63be0 RDI: 0000000000000007
RBP: 0000000000000007 R08: 0000000000000000 R09: 00007f3d3ef63b30
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3d41a38948
R13: 00007f3d3ef63be0 R14: 0000000000000000 R15: 0000000000022000
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(5)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: Device attached
----------------
Code disassembly (best guess):
   0:	b2 a5                	mov    $0xa5,%dl
   2:	7e 83                	jle    0xffffff87
   4:	f8                   	clc
   5:	01 0f                	add    %ecx,(%rdi)
   7:	85 b4 02 00 00 9c 58 	test   %esi,0x589c0000(%rdx,%rax,1)
   e:	f6 c4 02             	test   $0x2,%ah
  11:	0f 85 9f 02 00 00    	jne    0x2b6
  17:	48 83 7c 24 08 00    	cmpq   $0x0,0x8(%rsp)
  1d:	74 01                	je     0x20
  1f:	fb                   	sti
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	48 01 c3             	add    %rax,%rbx <-- trapping instruction
  2d:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
  34:	48 c7 43 08 00 00 00 	movq   $0x0,0x8(%rbx)
  3b:	00
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	84                   	.byte 0x84
  3f:	24                   	.byte 0x24