(syz-executor,4180,0):ocfs2_check_dir_entry:325 ERROR: bad entry in directory #65: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2468!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4180 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:_ocfs2_free_suballoc_bits+0xda5/0x1060 fs/ocfs2/suballoc.c:2468
Code: 48 8b 7c 24 18 49 89 ce 45 89 c7 e8 55 04 9a fe 48 8b 74 24 18 45 89 f8 4c 89 f1 4c 8b 74 24 60 e9 37 fb ff ff e8 bb 9b 55 fe <0f> 0b e8 b4 9b 55 fe 0f 0b 65 44 8b 3d f2 e4 df 7c bf 07 00 00 00
RSP: 0018:ffffc90002f0f5e0 EFLAGS: 00010293
RAX: ffffffff83223055 RBX: 0000000000000001 RCX: ffff8880793e9dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002f0f768 R08: 0000000000000020 R09: 00000000000000fe
R10: fffffbfff1ad26b6 R11: 1ffffffff1ad26b5 R12: ffff8880727c96b8
R13: 00000000000000fe R14: dffffc0000000000 R15: ffff88807332ce00
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005622d0cc8190 CR3: 000000001e63c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5de/0xa60 fs/ocfs2/suballoc.c:2569
 ocfs2_sync_local_to_main+0x536/0xb20 fs/ocfs2/localalloc.c:996
 ocfs2_shutdown_local_alloc+0x6dd/0xa10 fs/ocfs2/localalloc.c:446
 ocfs2_dismount_volume+0x1de/0x880 fs/ocfs2/super.c:1885
 generic_shutdown_super+0x130/0x300 fs/super.c:475
 kill_block_super+0x7c/0xe0 fs/super.c:1427
 deactivate_locked_super+0x93/0xf0 fs/super.c:335
 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x61e/0x20a0 kernel/exit.c:883
 do_group_exit+0x12e/0x300 kernel/exit.c:997
 __do_sys_exit_group kernel/exit.c:1008 [inline]
 __se_sys_exit_group kernel/exit.c:1006 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1006
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1d3ad83749
Code: Unable to access opcode bytes at RIP 0x7f1d3ad8371f.
RSP: 002b:00007ffd1fa86fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f1d3ae07def RCX: 00007f1d3ad83749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000010 R08: 00007ffd1fa84d46 R09: 00007ffd1fa88260
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1fa88260
R13: 00007f1d3ae07d7d R14: 000055556d8124a8 R15: 00007ffd1fa89330
 </TASK>
Modules linked in:
---[ end trace d3add77c498ba851 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0xda5/0x1060 fs/ocfs2/suballoc.c:2468
Code: 48 8b 7c 24 18 49 89 ce 45 89 c7 e8 55 04 9a fe 48 8b 74 24 18 45 89 f8 4c 89 f1 4c 8b 74 24 60 e9 37 fb ff ff e8 bb 9b 55 fe <0f> 0b e8 b4 9b 55 fe 0f 0b 65 44 8b 3d f2 e4 df 7c bf 07 00 00 00
RSP: 0018:ffffc90002f0f5e0 EFLAGS: 00010293
RAX: ffffffff83223055 RBX: 0000000000000001 RCX: ffff8880793e9dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002f0f768 R08: 0000000000000020 R09: 00000000000000fe
R10: fffffbfff1ad26b6 R11: 1ffffffff1ad26b5 R12: ffff8880727c96b8
R13: 00000000000000fe R14: dffffc0000000000 R15: ffff88807332ce00
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8116a72ad8 CR3: 000000001b74a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400