syzbot

EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
ext4 filesystem being mounted at /root/syzkaller.UaMG9M/73/bus supports timestamps until 2038-01-19 (0x7fffffff)
------------[ cut here ]------------
Looking for class "&ei->i_data_sem" with key init_once.__key.798, but found a different class "&ei->i_data_sem" with the same key
WARNING: CPU: 0 PID: 5306 at kernel/locking/lockdep.c:935 look_up_lock_class+0xdc/0x160 kernel/locking/lockdep.c:932
Modules linked in:
CPU: 0 PID: 5306 Comm: syz-executor271 Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:look_up_lock_class+0xdc/0x160 kernel/locking/lockdep.c:932
Code: 01 0f 85 80 00 00 00 c6 05 d2 e1 1a 04 01 90 49 8b 16 49 8b 76 18 48 8b 8b b8 00 00 00 48 c7 c7 40 d9 ca 8b e8 b5 f9 e0 f5 90 <0f> 0b 90 90 eb 57 90 e8 a8 c0 2b f9 48 c7 c7 80 d8 ca 8b 89 de e8
RSP: 0018:ffffc9000432f570 EFLAGS: 00010046
RAX: d27305de5b264700 RBX: ffffffff92c34158 RCX: ffff88801ed90000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000432f680 R08: ffffffff81587f92 R09: 1ffff1101728519a
R10: dffffc0000000000 R11: ffffed101728519b R12: ffff888076dce688
R13: ffff888076dce688 R14: ffff888076dce688 R15: ffffffff94826e81
FS:  000055557d2c2480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdcac4610f8 CR3: 000000002bdac000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 register_lock_class+0x102/0x980 kernel/locking/lockdep.c:1284
 __lock_acquire+0xda/0x1fd0 kernel/locking/lockdep.c:5014
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 down_write_nested+0x3d/0x50 kernel/locking/rwsem.c:1695
 swap_inode_boot_loader fs/ext4/ioctl.c:432 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1437 [inline]
 ext4_ioctl+0x4120/0x5590 fs/ext4/ioctl.c:1627
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdcac3e98e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 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:00007ffd454b25b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdcac3e98e9
RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004
RBP: 0000000000000000 R08: 00007ffd454b25ec R09: 00007ffd454b25ec
R10: 00007ffd454b25ec R11: 0000000000000246 R12: 00007ffd454b25ec
R13: 0000000000000049 R14: 431bde82d7b634db R15: 00007ffd454b2620
 </TASK>