------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2468!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4279 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:_ocfs2_free_suballoc_bits+0xe4c/0x1170 fs/ocfs2/suballoc.c:2468
Code: 49 89 ce 45 89 c7 e8 d3 55 8a fe 48 8b 74 24 30 45 89 f8 4c 89 f1 49 be 00 00 00 00 00 fc ff df e9 c0 fa ff ff e8 d4 26 3a fe <0f> 0b e8 cd 26 3a fe 0f 0b 65 44 8b 25 03 6a bb 7c 48 c7 c0 b0 6c
RSP: 0018:ffffc90003d67540 EFLAGS: 00010293
RAX: ffffffff8346af8c RBX: 00000000ffffffff RCX: ffff88802fc91dc0
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc90003d676c8 R08: 0000000000000020 R09: 00000000000000fe
R10: fffffbfff1c3ed56 R11: 1ffffffff1c3ed55 R12: ffff8880517dfe00
R13: 0000000000000020 R14: dffffc0000000000 R15: ffff888073f9b000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff1a08dfe0 CR3: 00000000593d6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5fd/0xae0 fs/ocfs2/suballoc.c:2569
 ocfs2_sync_local_to_main+0x570/0xc00 fs/ocfs2/localalloc.c:996
 ocfs2_shutdown_local_alloc+0x6dd/0xa10 fs/ocfs2/localalloc.c:446
 ocfs2_dismount_volume+0x1fc/0x930 fs/ocfs2/super.c:1882
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7c/0xe0 fs/super.c:1470
 deactivate_locked_super+0x93/0xf0 fs/super.c:332
 cleanup_mnt+0x463/0x4f0 fs/namespace.c:1191
 task_work_run+0x1ca/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0x93e/0x2400 kernel/exit.c:880
 do_group_exit+0x217/0x2d0 kernel/exit.c:1022
 __do_sys_exit_group kernel/exit.c:1033 [inline]
 __se_sys_exit_group kernel/exit.c:1031 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1031
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f090e58f749
Code: Unable to access opcode bytes at 0x7f090e58f71f.
RSP: 002b:00007fff1a0900f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f090e613def RCX: 00007f090e58f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000010 R08: 00007fff1a08de96 R09: 00007fff1a0913b0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff1a0913b0
R13: 00007f090e613d7d R14: 00005555767af4a8 R15: 00007fff1a092480
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0xe4c/0x1170 fs/ocfs2/suballoc.c:2468
Code: 49 89 ce 45 89 c7 e8 d3 55 8a fe 48 8b 74 24 30 45 89 f8 4c 89 f1 49 be 00 00 00 00 00 fc ff df e9 c0 fa ff ff e8 d4 26 3a fe <0f> 0b e8 cd 26 3a fe 0f 0b 65 44 8b 25 03 6a bb 7c 48 c7 c0 b0 6c
RSP: 0018:ffffc90003d67540 EFLAGS: 00010293
RAX: ffffffff8346af8c RBX: 00000000ffffffff RCX: ffff88802fc91dc0
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc90003d676c8 R08: 0000000000000020 R09: 00000000000000fe
R10: fffffbfff1c3ed56 R11: 1ffffffff1c3ed55 R12: ffff8880517dfe00
R13: 0000000000000020 R14: dffffc0000000000 R15: ffff888073f9b000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005621d48f9950 CR3: 000000007f443000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400