BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 11695 Comm: syz-executor.2 Not tainted 5.15.0-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
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
 swake_up_one+0x16/0x1b0 kernel/sched/swait.c:52
 rcu_report_exp_rdp kernel/rcu/tree_exp.h:259 [inline]
 rcu_preempt_deferred_qs_irqrestore+0x56f/0xb20 kernel/rcu/tree_plugin.h:501
 rcu_note_context_switch+0x18c/0x17f0 kernel/rcu/tree_plugin.h:340
 __schedule+0x247/0x5960 kernel/sched/core.c:6184
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6459
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
 _raw_spin_unlock_irqrestore+0x57/0x70 kernel/locking/spinlock.c:194
 __debug_object_init+0x409/0xd10 lib/debugobjects.c:605
 __init_work+0x48/0x50 kernel/workqueue.c:521
 ext4_alloc_inode+0x44a/0x640 fs/ext4/super.c:1315
 alloc_inode+0x61/0x230 fs/inode.c:237
 new_inode_pseudo fs/inode.c:938 [inline]
 new_inode+0x27/0x2f0 fs/inode.c:967
 __ext4_new_inode+0x359/0x5ba0 fs/ext4/ialloc.c:960
 ext4_mkdir+0x33a/0xb20 fs/ext4/namei.c:2929
 vfs_mkdir+0x1ce/0x3f0 fs/namei.c:3885
 ovl_do_mkdir fs/overlayfs/overlayfs.h:162 [inline]
 ovl_mkdir_real fs/overlayfs/dir.c:146 [inline]
 ovl_create_real+0x2df/0x520 fs/overlayfs/dir.c:193
 ovl_copy_up_workdir fs/overlayfs/copy_up.c:657 [inline]
 ovl_do_copy_up fs/overlayfs/copy_up.c:801 [inline]
 ovl_copy_up_one+0x7a8/0x1de0 fs/overlayfs/copy_up.c:971
 ovl_copy_up_flags+0x150/0x1d0 fs/overlayfs/copy_up.c:1017
 ovl_create_or_link+0xaf/0x1530 fs/overlayfs/dir.c:577
 ovl_create_object+0x20b/0x290 fs/overlayfs/dir.c:647
 lookup_open.isra.0+0xfe4/0x13d0 fs/namei.c:3282
 open_last_lookups fs/namei.c:3352 [inline]
 path_openat+0x9a5/0x2740 fs/namei.c:3558
 do_filp_open+0x1aa/0x400 fs/namei.c:3588
 do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
 do_sys_open fs/open.c:1216 [inline]
 __do_sys_creat fs/open.c:1290 [inline]
 __se_sys_creat fs/open.c:1284 [inline]
 __x64_sys_creat+0xc9/0x120 fs/open.c:1284
 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: 0033:0x7fe471a41ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fe46ef96188 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fe471b55020 RCX: 00007fe471a41ae9
RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000020000100
RBP: 00007fe471a9bf25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff1dd916ef R14: 00007fe46ef96300 R15: 0000000000022000