------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2478!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5894 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:_ocfs2_free_suballoc_bits+0xdca/0x1080 fs/ocfs2/suballoc.c:2478
Code: c2 0f 8c 82 fa ff ff 4c 89 e7 49 89 ce 45 89 c7 e8 cb 33 7d fe 45 89 f8 4c 89 f1 4c 8b 74 24 28 e9 64 fa ff ff e8 a6 f4 24 fe <0f> 0b e8 9f f4 24 fe 0f 0b 65 44 8b 25 71 7e a1 7c bf 07 00 00 00
RSP: 0018:ffffc900033276a0 EFLAGS: 00010293
RAX: ffffffff8362374a RBX: 0000000000000001 RCX: ffff8880237a0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003327828 R08: 0000000000000020 R09: 00000000000000fc
R10: dffffc0000000000 R11: fffffbfff1d1675e R12: dffffc0000000000
R13: ffff88805bfcfe00 R14: 00000000000000fc R15: 0000000000000020
FS:  000055557ae42500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555572b7ba38 CR3: 00000000618fe000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5e5/0xa70 fs/ocfs2/suballoc.c:2579
 ocfs2_sync_local_to_main+0x527/0xb90 fs/ocfs2/localalloc.c:996
 ocfs2_shutdown_local_alloc+0x729/0xaa0 fs/ocfs2/localalloc.c:446
 ocfs2_dismount_volume+0x1e5/0x8a0 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+0x43b/0x4d0 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: 0033:0x7fc3ebb9e097
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:00007fff83b9e658 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fc3ebc321ca RCX: 00007fc3ebb9e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83b9e710
RBP: 00007fff83b9e710 R08: 00007fff83b9f710 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83b9f7a0
R13: 00007fc3ebc321ca R14: 0000000000029b17 R15: 00007fff83b9f7e0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0xdca/0x1080 fs/ocfs2/suballoc.c:2478
Code: c2 0f 8c 82 fa ff ff 4c 89 e7 49 89 ce 45 89 c7 e8 cb 33 7d fe 45 89 f8 4c 89 f1 4c 8b 74 24 28 e9 64 fa ff ff e8 a6 f4 24 fe <0f> 0b e8 9f f4 24 fe 0f 0b 65 44 8b 25 71 7e a1 7c bf 07 00 00 00
RSP: 0018:ffffc900033276a0 EFLAGS: 00010293
RAX: ffffffff8362374a RBX: 0000000000000001 RCX: ffff8880237a0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003327828 R08: 0000000000000020 R09: 00000000000000fc
R10: dffffc0000000000 R11: fffffbfff1d1675e R12: dffffc0000000000
R13: ffff88805bfcfe00 R14: 00000000000000fc R15: 0000000000000020
FS:  000055557ae42500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff5933f4000 CR3: 00000000618fe000 CR4: 00000000003506e0