------------[ cut here ]------------
WARNING: CPU: 0 PID: 7673 at kernel/locking/lockdep.c:938 look_up_lock_class+0x110/0x120 kernel/locking/lockdep.c:928
Modules linked in:
CPU: 0 PID: 7673 Comm: syz-executor.0 Not tainted 5.19.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:look_up_lock_class+0x110/0x120 kernel/locking/lockdep.c:937
Code: 31 db 85 c0 74 af 83 3d d5 a5 da 03 00 75 a6 31 db 48 c7 c7 60 e6 ec 89 48 c7 c6 a0 e6 ec 89 31 c0 e8 64 b2 cc f7 0f 0b eb 8b <0f> 0b eb 87 e8 c7 fa ff ff 0f 1f 80 00 00 00 00 55 53 bd 01 00 00
RSP: 0018:ffffc9000294edb8 EFLAGS: 00010087
RAX: ffffffff8f067f40 RBX: ffffffff8eeda480 RCX: 000000000000075c
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88806a3d3628
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: fffffbfff1aac4de R11: 1ffffffff1aac4dd R12: ffff88806a3d3628
R13: ffff88806a3d3628 R14: 0000000000000000 R15: 1ffff92000529dc4
FS:  00007fcfcc7e9700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5db530e000 CR3: 000000001ef88000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 register_lock_class+0xfe/0x9d0 kernel/locking/lockdep.c:1287
 __lock_acquire+0xe9/0x1f80 kernel/locking/lockdep.c:4932
 lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5665
 down_write+0x95/0x170 kernel/locking/rwsem.c:1542
 inode_lock include/linux/fs.h:741 [inline]
 ext4_xattr_inode_update_ref+0x101/0x590 fs/ext4/xattr.c:985
 ext4_xattr_inode_inc_ref fs/ext4/xattr.c:1045 [inline]
 ext4_xattr_inode_lookup_create fs/ext4/xattr.c:1517 [inline]
 ext4_xattr_set_entry+0x2dd2/0x3620 fs/ext4/xattr.c:1656
 ext4_xattr_block_set+0x8f8/0x3280 fs/ext4/xattr.c:1952
 ext4_xattr_set_handle+0x94e/0x1110 fs/ext4/xattr.c:2379
 ext4_xattr_set+0x211/0x380 fs/ext4/xattr.c:2480
 __vfs_setxattr+0x300/0x350 fs/xattr.c:182
 __vfs_setxattr_noperm+0x100/0x4b0 fs/xattr.c:216
 vfs_setxattr+0x1dd/0x360 fs/xattr.c:303
 do_setxattr fs/xattr.c:588 [inline]
 setxattr fs/xattr.c:611 [inline]
 path_setxattr+0x316/0x3f0 fs/xattr.c:630
 __do_sys_setxattr fs/xattr.c:646 [inline]
 __se_sys_setxattr fs/xattr.c:642 [inline]
 __x64_sys_setxattr+0xb2/0xc0 fs/xattr.c:642
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fcfcba8c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcfcc7e9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007fcfcbbac050 RCX: 00007fcfcba8c0c9
RDX: 00000000200005c0 RSI: 0000000020000180 RDI: 00000000200000c0
RBP: 00007fcfcbae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff2aeab52f R14: 00007fcfcc7e9300 R15: 0000000000022000
 </TASK>