------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2855!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5839 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:_ocfs2_free_suballoc_bits+0x250d/0x2780 fs/ocfs2/suballoc.c:2855
Code: fe e9 3e f3 ff ff e8 a2 25 fc fd 48 c7 c7 40 d0 ce 8e 48 8b 74 24 68 4c 89 fa e8 9e 19 22 01 e9 4c f3 ff ff e8 84 25 fc fd 90 <0f> 0b e8 7c 25 fc fd 90 0f 0b 4c 89 7c 24 08 65 8b 1d 51 39 54 0f
RSP: 0018:ffffc90003db7600 EFLAGS: 00010293
RAX: ffffffff83ca06cc RBX: 0000000000000001 RCX: ffff88807eea9e80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003db7868 R08: 0000000000000020 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff202539f R12: ffff888034676cd8
R13: ffff8880587c33c8 R14: ffff88807f28ce00 R15: 1ffff920007b6ed4
FS:  0000555595173500(0000) GS:ffff88812543c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000004000 CR3: 000000002a22c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5c2/0xa80 fs/ocfs2/suballoc.c:2973
 ocfs2_replay_truncate_records fs/ocfs2/alloc.c:5979 [inline]
 __ocfs2_flush_truncate_log+0x768/0x1240 fs/ocfs2/alloc.c:6062
 ocfs2_flush_truncate_log+0x4f/0x70 fs/ocfs2/alloc.c:6084
 ocfs2_sync_fs+0x11c/0x340 fs/ocfs2/super.c:406
 sync_filesystem+0x1cf/0x230 fs/sync.c:66
 generic_shutdown_super+0x77/0x2d0 fs/super.c:625
 kill_block_super+0x44/0x90 fs/super.c:1725
 deactivate_locked_super+0xbc/0x130 fs/super.c:476
 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312
 task_work_run+0x1d9/0x270 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:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:328 [inline]
 do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb1a199da57
Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe1b4cf218 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fb1a1a32048 RCX: 00007fb1a199da57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1b4cf2d0
RBP: 00007ffe1b4cf2d0 R08: 00007ffe1b4d02d0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1b4d0360
R13: 00007fb1a1a32048 R14: 000000000004be7e R15: 00007ffe1b4d03a0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0x250d/0x2780 fs/ocfs2/suballoc.c:2855
Code: fe e9 3e f3 ff ff e8 a2 25 fc fd 48 c7 c7 40 d0 ce 8e 48 8b 74 24 68 4c 89 fa e8 9e 19 22 01 e9 4c f3 ff ff e8 84 25 fc fd 90 <0f> 0b e8 7c 25 fc fd 90 0f 0b 4c 89 7c 24 08 65 8b 1d 51 39 54 0f
RSP: 0018:ffffc90003db7600 EFLAGS: 00010293
RAX: ffffffff83ca06cc RBX: 0000000000000001 RCX: ffff88807eea9e80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003db7868 R08: 0000000000000020 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff202539f R12: ffff888034676cd8
R13: ffff8880587c33c8 R14: ffff88807f28ce00 R15: 1ffff920007b6ed4
FS:  0000555595173500(0000) GS:ffff88812543c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000004000 CR3: 000000002a22c000 CR4: 00000000003526f0