syzbot

loop0: detected capacity change from 0 to 32768
ocfs2: Readonly device (7,0) detected. Cluster services will not be used for this mount. Recovery will be skipped.
ocfs2: Mounting device (7,0) on (node local, slot 65535) with ordered data mode.
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: 3568 Comm: syz-executor415 Not tainted 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 assign_lock_key+0x21e/0x230 kernel/locking/lockdep.c:937
 register_lock_class+0x28a/0x9a0 kernel/locking/lockdep.c:1250
 __lock_acquire+0xd7/0x1ff0 kernel/locking/lockdep.c:4891
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 ocfs2_mark_lockres_freeing+0x15a/0x690 fs/ocfs2/dlmglue.c:3514
 ocfs2_simple_drop_lockres fs/ocfs2/dlmglue.c:3570 [inline]
 ocfs2_drop_osb_locks fs/ocfs2/dlmglue.c:3578 [inline]
 ocfs2_dlm_shutdown+0x36/0x230 fs/ocfs2/dlmglue.c:3388
 ocfs2_dismount_volume+0x474/0x8b0 fs/ocfs2/super.c:1923
 generic_shutdown_super+0x130/0x310 fs/super.c:475
 kill_block_super+0x7a/0xe0 fs/super.c:1427
 deactivate_locked_super+0xa0/0x110 fs/super.c:335
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:874
 do_group_exit+0x144/0x310 kernel/exit.c:996
 __do_sys_exit_group kernel/exit.c:1007 [inline]
 __se_sys_exit_group kernel/exit.c:1005 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2b24236d89
Code: Unable to access opcode bytes at RIP 0x7f2b24236d5f.
RSP: 002b:00007ffedc8fe038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f2b24236d89
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f2b242b7390 R08: ffffffffffffffb8 R09: 0000000000004469
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2b242b7390
R13: 0000000000000000 R14: 00007f2b242b8100 R15: 00007f2b24205050
 </TASK>
ocfs2: Unmounting device (7,0) on (node local)