syzbot

INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 PID: 30319 Comm: syz-executor.1 Not tainted 6.1.0-rc4-syzkaller-31872-g1621b6eaebf7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156
 show_stack+0x2c/0x54 arch/arm64/kernel/stacktrace.c:163
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 assign_lock_key+0x134/0x140 kernel/locking/lockdep.c:981
 register_lock_class+0xc4/0x2f8 kernel/locking/lockdep.c:1294
 __lock_acquire+0xa8/0x3084 kernel/locking/lockdep.c:4934
 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5668
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:350 [inline]
 ext4_do_update_inode+0x50/0x8f8 fs/ext4/inode.c:5136
 ext4_mark_iloc_dirty+0x74/0x148 fs/ext4/inode.c:5785
 __ext4_mark_inode_dirty+0x138/0x194 fs/ext4/inode.c:5981
 ext4_dirty_inode+0x74/0x98 fs/ext4/inode.c:6010
 __mark_inode_dirty+0x104/0x354 fs/fs-writeback.c:2400
 ext4_mb_new_blocks+0x808/0x9d8
 ext4_new_meta_blocks+0x84/0x140 fs/ext4/balloc.c:700
 ext4_xattr_block_set+0xce0/0x142c fs/ext4/xattr.c:2078
 ext4_xattr_set_handle+0x724/0x9a0 fs/ext4/xattr.c:2394
 ext4_xattr_set+0x100/0x1d0 fs/ext4/xattr.c:2496
 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38
 __vfs_setxattr+0x250/0x260 fs/xattr.c:182
 __vfs_setxattr_noperm+0xcc/0x320 fs/xattr.c:216
 __vfs_setxattr_locked+0x16c/0x194 fs/xattr.c:277
 vfs_setxattr+0xf4/0x1f4 fs/xattr.c:309
 do_setxattr fs/xattr.c:594 [inline]
 setxattr fs/xattr.c:617 [inline]
 path_setxattr+0x354/0x414 fs/xattr.c:636
 __do_sys_setxattr fs/xattr.c:652 [inline]
 __se_sys_setxattr fs/xattr.c:648 [inline]
 __arm64_sys_setxattr+0x2c/0x40 fs/xattr.c:648
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584