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: 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