------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2500!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5771 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:_ocfs2_free_suballoc_bits+0xd9c/0x1030 fs/ocfs2/suballoc.c:2500
Code: 07 fe c1 38 c1 0f 8c 7f fa ff ff 49 89 fd 48 8b 7c 24 18 e8 96 81 75 fe 4c 89 ef 48 8b 54 24 18 e9 65 fa ff ff e8 d4 08 1d fe <0f> 0b e8 cd 08 1d fe 0f 0b 65 44 8b 35 9f 4e 99 7c bf 07 00 00 00
RSP: 0000:ffffc900044176c0 EFLAGS: 00010293
RAX: ffffffff836a699c RBX: 0000000000000020 RCX: ffff8880279c8000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc90004417848 R08: 0000000000000020 R09: 000000000000003c
R10: dffffc0000000000 R11: fffffbfff1d18fc6 R12: dffffc0000000000
R13: 000000000000003c R14: ffff8880260a5e00 R15: 00000000ffffffff
FS:  00005555617cb500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f166f7204e8 CR3: 0000000061756000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5ed/0xa80 fs/ocfs2/suballoc.c:2601
 ocfs2_sync_local_to_main+0x52f/0xb80 fs/ocfs2/localalloc.c:996
 ocfs2_shutdown_local_alloc+0x731/0xac0 fs/ocfs2/localalloc.c:446
 ocfs2_dismount_volume+0x1e5/0x890 fs/ocfs2/super.c:1881
 generic_shutdown_super+0x134/0x2b0 fs/super.c:693
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x3d7/0x460 fs/namespace.c:1259
 task_work_run+0x1d4/0x260 kernel/task_work.c:245
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd45e99f317
Code: a2 c7 05 dc 43 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:00007ffea04437b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fd45ea34474 RCX: 00007fd45e99f317
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffea0443870
RBP: 00007ffea0443870 R08: 00007ffea0444870 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffea0444900
R13: 00007fd45ea34474 R14: 000000000002e072 R15: 00007ffea0444940
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0xd9c/0x1030 fs/ocfs2/suballoc.c:2500
Code: 07 fe c1 38 c1 0f 8c 7f fa ff ff 49 89 fd 48 8b 7c 24 18 e8 96 81 75 fe 4c 89 ef 48 8b 54 24 18 e9 65 fa ff ff e8 d4 08 1d fe <0f> 0b e8 cd 08 1d fe 0f 0b 65 44 8b 35 9f 4e 99 7c bf 07 00 00 00
RSP: 0000:ffffc900044176c0 EFLAGS: 00010293
RAX: ffffffff836a699c RBX: 0000000000000020 RCX: ffff8880279c8000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc90004417848 R08: 0000000000000020 R09: 000000000000003c
R10: dffffc0000000000 R11: fffffbfff1d18fc6 R12: dffffc0000000000
R13: 000000000000003c R14: ffff8880260a5e00 R15: 00000000ffffffff
FS:  00005555617cb500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555578408a38 CR3: 0000000061756000 CR4: 00000000003506f0