(syz-executor,4165,0):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
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kernel BUG at fs/ocfs2/alloc.c:6002!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4165 Comm: syz-executor Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__ocfs2_flush_truncate_log+0x1077/0x11c0 fs/ocfs2/alloc.c:6002
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 8a fb ff ff 48 89 df e8 1a f5 8f fe e9 7d fb ff ff e8 60 02 46 fe 0f 0b e8 59 02 46 fe <0f> 0b 65 44 8b 2d e7 7a c7 7c bf 07 00 00 00 44 89 ee e8 a2 05 46
RSP: 0018:ffffc90002e8f8e0 EFLAGS: 00010293
RAX: ffffffff833a9a67 RBX: 00000000ffffffff RCX: ffff8880213e3b80
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc90002e8faf0 R08: ffffffff833a8bbe R09: fffff520005d1f05
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90002e8fa00
R13: ffff888060fc96b8 R14: ffff88802b665a00 R15: ffff888060855c00
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2c1602178c CR3: 0000000063e78000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_flush_truncate_log+0x4b/0x60 fs/ocfs2/alloc.c:6067
 ocfs2_sync_fs+0x121/0x380 fs/ocfs2/super.c:403
 sync_filesystem+0x1bc/0x220 fs/sync.c:66
 generic_shutdown_super+0x6b/0x310 fs/super.c:448
 kill_block_super+0x7a/0xe0 fs/super.c:1427
 deactivate_locked_super+0xa0/0x110 fs/super.c:335
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x6a3/0x2480 kernel/exit.c:874
 do_group_exit+0x144/0x310 kernel/exit.c:996
 __do_sys_exit_group kernel/exit.c:1007 [inline]
 __se_sys_exit_group kernel/exit.c:1005 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb4a780d169
Code: Unable to access opcode bytes at RIP 0x7fb4a780d13f.
RSP: 002b:00007ffcbd86d838 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fb4a788e0fe RCX: 00007fb4a780d169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000010 R08: 00007ffcbd86b5d6 R09: 00007ffcbd86eaf0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcbd86eaf0
R13: 00007fb4a788e08c R14: 000055557220f4a8 R15: 00007ffcbd86fbc0
 </TASK>
Modules linked in:
---[ end trace 74f4659089ed6c01 ]---
RIP: 0010:__ocfs2_flush_truncate_log+0x1077/0x11c0 fs/ocfs2/alloc.c:6002
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 8a fb ff ff 48 89 df e8 1a f5 8f fe e9 7d fb ff ff e8 60 02 46 fe 0f 0b e8 59 02 46 fe <0f> 0b 65 44 8b 2d e7 7a c7 7c bf 07 00 00 00 44 89 ee e8 a2 05 46
RSP: 0018:ffffc90002e8f8e0 EFLAGS: 00010293
RAX: ffffffff833a9a67 RBX: 00000000ffffffff RCX: ffff8880213e3b80
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffffc90002e8faf0 R08: ffffffff833a8bbe R09: fffff520005d1f05
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90002e8fa00
R13: ffff888060fc96b8 R14: ffff88802b665a00 R15: ffff888060855c00
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f8e4a41668 CR3: 000000002b825000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400