------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key __key.0, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 0 PID: 9667 at kernel/locking/lockdep.c:936 look_up_lock_class+0x140/0x150 kernel/locking/lockdep.c:936
Modules linked in:
CPU: 0 UID: 0 PID: 9667 Comm: syz.6.1101 Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:look_up_lock_class+0x140/0x150 kernel/locking/lockdep.c:936
Code: c7 c7 e0 ce 6c 8b e8 0f bb 2c f6 90 0f 0b 90 90 90 31 db eb be c6 05 f4 84 26 05 01 90 48 c7 c7 c0 d1 6c 8b e8 f1 ba 2c f6 90 <0f> 0b 90 90 e9 58 ff ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc9000325f658 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffffffff96ea20a0 RCX: ffffc9001d202000
RDX: 0000000000040000 RSI: ffffffff814e6e86 RDI: 0000000000000001
RBP: ffffffff9a8f7341 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 20676e696b6f6f4c R12: ffff88807b13ef80
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff9a828820
FS:  00007f5080dfa6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007ee90000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 register_lock_class+0xb1/0x1240 kernel/locking/lockdep.c:1290
 __lock_acquire+0x135/0x3ce0 kernel/locking/lockdep.c:5077
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
 down_write_nested+0x97/0x210 kernel/locking/rwsem.c:1693
 ext4_double_down_write_data_sem fs/ext4/move_extent.c:54 [inline]
 ext4_move_extents+0x9b0/0x3940 fs/ext4/move_extent.c:621
 __ext4_ioctl+0x3b00/0x4630 fs/ext4/ioctl.c:1370
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x192/0x220 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f507ff7e719
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5080dfa038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f5080136058 RCX: 00007f507ff7e719
RDX: 0000000020000080 RSI: 00000000c028660f RDI: 0000000000000005
RBP: 00007f507fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5080136058 R15: 00007fffc985fd38
 </TASK>