------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2880!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6251 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:_ocfs2_free_suballoc_bits+0x24e4/0x2760 fs/ocfs2/suballoc.c:2880
Code: 66 fe e9 4c f3 ff ff e8 6a 1c fc fd 48 c7 c7 60 df 8a 8e 48 8b 74 24 68 4c 89 e2 e8 86 8e 1e 01 e9 5a f3 ff ff e8 4c 1c fc fd <0f> 0b e8 45 1c fc fd 0f 0b 4c 89 3c 24 65 8b 1d 5c 4b f7 0e bf 07
RSP: 0018:ffffc9000373f5a0 EFLAGS: 00010293
RAX: ffffffff83c744c4 RBX: 0000000000000001 RCX: ffff8880308b3d80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000373f808 R08: 0000000000000020 R09: 00000000000000fc
R10: dffffc0000000000 R11: fffffbfff1f80e5f R12: ffff88805222e2e0
R13: ffff8880521a7e18 R14: ffff88804f4b8e00 R15: 1ffff920006e7ec8
FS:  000055557ed8c500(0000) GS:ffff888125a37000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff50f24fa0 CR3: 000000007456c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5d6/0xa80 fs/ocfs2/suballoc.c:2998
 ocfs2_sync_local_to_main+0x52f/0xbf0 fs/ocfs2/localalloc.c:989
 ocfs2_shutdown_local_alloc+0x6e8/0xa40 fs/ocfs2/localalloc.c:447
 ocfs2_dismount_volume+0x1ec/0x8d0 fs/ocfs2/super.c:1825
 generic_shutdown_super+0x13d/0x2d0 fs/super.c:646
 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+0xf3/0x4d0 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x2b7/0x4d0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f7e53f9e097
Code: a2 c7 05 5c 06 25 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:00007fff50f255f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7e540321ca RCX: 00007f7e53f9e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff50f256b0
RBP: 00007fff50f256b0 R08: 00007fff50f266b0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff50f26740
R13: 00007f7e540321ca R14: 000000000002e66f R15: 00007fff50f26780
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0x24e4/0x2760 fs/ocfs2/suballoc.c:2880
Code: 66 fe e9 4c f3 ff ff e8 6a 1c fc fd 48 c7 c7 60 df 8a 8e 48 8b 74 24 68 4c 89 e2 e8 86 8e 1e 01 e9 5a f3 ff ff e8 4c 1c fc fd <0f> 0b e8 45 1c fc fd 0f 0b 4c 89 3c 24 65 8b 1d 5c 4b f7 0e bf 07
RSP: 0018:ffffc9000373f5a0 EFLAGS: 00010293
RAX: ffffffff83c744c4 RBX: 0000000000000001 RCX: ffff8880308b3d80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000373f808 R08: 0000000000000020 R09: 00000000000000fc
R10: dffffc0000000000 R11: fffffbfff1f80e5f R12: ffff88805222e2e0
R13: ffff8880521a7e18 R14: ffff88804f4b8e00 R15: 1ffff920006e7ec8
FS:  000055557ed8c500(0000) GS:ffff888125a37000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000bbb6a965000 CR3: 000000007456c000 CR4: 00000000003526f0