EXT4-fs error (device loop2): htree_dirblock_to_tree:1111: inode #2: block 13: comm syz-executor.2: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0
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kernel BUG at fs/namei.c:2956!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 25622 Comm: syz-executor.2 Not tainted 6.1.75-syzkaller-00089-g1794308d463f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:may_delete+0x6eb/0x6f0 fs/namei.c:2956
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 36 72 f3 ff e9 72 fe ff ff e8 4c 79 ac ff 0f 0b e8 45 79 ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 31 79 ac ff 4c 8d
RSP: 0018:ffffc90007f17bd8 EFLAGS: 00010293
RAX: ffffffff81c8f6cb RBX: ffff88813c286ad0 RCX: ffff888188d05100
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90007f17c40 R08: ffffffff81c8f05f R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88813c286ee0
R13: 1ffff11027850ddc R14: ffff88815eb29848 R15: dffffc0000000000
FS:  0000555555817480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555830898 CR3: 0000000128e55000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_rmdir+0x32/0x500 fs/namei.c:4178
 incfs_kill_sb+0x113/0x230 fs/incfs/vfs.c:1962
 deactivate_locked_super+0xad/0x110 fs/super.c:334
 deactivate_super+0xbe/0xf0 fs/super.c:365
 cleanup_mnt+0x485/0x510 fs/namespace.c:1186
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1193
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x94/0xa0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9436e7efd7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffde21a1338 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9436e7efd7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffde21a13f0
RBP: 00007ffde21a13f0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffde21a24e0
R13: 00007f9436ec83b9 R14: 00000000001b1ecf R15: 0000000000000019
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:may_delete+0x6eb/0x6f0 fs/namei.c:2956
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 36 72 f3 ff e9 72 fe ff ff e8 4c 79 ac ff 0f 0b e8 45 79 ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 31 79 ac ff 4c 8d
RSP: 0018:ffffc90007f17bd8 EFLAGS: 00010293

RAX: ffffffff81c8f6cb RBX: ffff88813c286ad0 RCX: ffff888188d05100
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90007f17c40 R08: ffffffff81c8f05f R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88813c286ee0
R13: 1ffff11027850ddc R14: ffff88815eb29848 R15: dffffc0000000000
FS:  0000555555817480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555830898 CR3: 0000000128e55000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400