------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2579!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 8007 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:_ocfs2_free_suballoc_bits+0xeb6/0x1300 fs/ocfs2/suballoc.c:2579
Code: 8b 4c 24 20 48 8b 74 24 10 48 8b 7c 24 30 e8 e1 e7 ff ff 58 5a e9 69 f9 ff ff bb fc ff ff ff e9 5f f9 ff ff e8 4b f8 fd fd 90 <0f> 0b e8 43 f8 fd fd 90 0f 0b e8 3b f8 fd fd 90 0f 0b 90 e9 17 f3
RSP: 0018:ffffc9000b057940 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffffffff83c0e241
RDX: ffff88803329db80 RSI: ffffffff83c0f015 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: ffff88803329e6b0 R12: ffff888032417e00
R13: ffffffff83c0afc0 R14: 0000000000000020 R15: ffff8880329e43a0
FS:  0000555569fe0500(0000) GS:ffff8881248f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005601377b7048 CR3: 000000005d5bc000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x41a/0x8d0 fs/ocfs2/suballoc.c:2683
 ocfs2_replay_truncate_records fs/ocfs2/alloc.c:5979 [inline]
 __ocfs2_flush_truncate_log+0x495/0x1110 fs/ocfs2/alloc.c:6062
 ocfs2_flush_truncate_log+0x4a/0x70 fs/ocfs2/alloc.c:6084
 ocfs2_sync_fs+0x1c6/0x3d0 fs/ocfs2/super.c:406
 sync_filesystem fs/sync.c:66 [inline]
 sync_filesystem+0x1d0/0x290 fs/sync.c:30
 generic_shutdown_super+0x74/0x390 fs/super.c:622
 kill_block_super+0x3b/0x90 fs/super.c:1722
 deactivate_locked_super+0xc1/0x1a0 fs/super.c:474
 deactivate_super fs/super.c:507 [inline]
 deactivate_super+0xde/0x100 fs/super.c:503
 cleanup_mnt+0x225/0x450 fs/namespace.c:1318
 task_work_run+0x150/0x240 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:44 [inline]
 exit_to_user_mode_loop+0xfb/0x540 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x4ee/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb3f1d90a77
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffe6f11de8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fb3f1e13d7d RCX: 00007fb3f1d90a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffe6f11ea0
RBP: 00007fffe6f11ea0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffe6f12f30
R13: 00007fb3f1e13d7d R14: 0000000000087157 R15: 00007fffe6f12f70
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0xeb6/0x1300 fs/ocfs2/suballoc.c:2579
Code: 8b 4c 24 20 48 8b 74 24 10 48 8b 7c 24 30 e8 e1 e7 ff ff 58 5a e9 69 f9 ff ff bb fc ff ff ff e9 5f f9 ff ff e8 4b f8 fd fd 90 <0f> 0b e8 43 f8 fd fd 90 0f 0b e8 3b f8 fd fd 90 0f 0b 90 e9 17 f3
RSP: 0018:ffffc9000b057940 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffffffff83c0e241
RDX: ffff88803329db80 RSI: ffffffff83c0f015 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: ffff88803329e6b0 R12: ffff888032417e00
R13: ffffffff83c0afc0 R14: 0000000000000020 R15: ffff8880329e43a0
FS:  0000555569fe0500(0000) GS:ffff8881249f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000158030 CR3: 000000005d5bc000 CR4: 0000000000350ef0