loop0: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
UDF-fs: error (device loop0): udf_fiiter_advance_blk: extent after position 0 not allocated in directory (ino 1408)
------------[ cut here ]------------
ret
WARNING: fs/udf/namei.c:214 at udf_expand_dir_adinicb fs/udf/namei.c:214 [inline], CPU#0: syz.0.97/6365
WARNING: fs/udf/namei.c:214 at udf_fiiter_add_entry+0x1a78/0x20c0 fs/udf/namei.c:262, CPU#0: syz.0.97/6365
Modules linked in:
CPU: 0 UID: 0 PID: 6365 Comm: syz.0.97 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:udf_expand_dir_adinicb fs/udf/namei.c:214 [inline]
RIP: 0010:udf_fiiter_add_entry+0x1a78/0x20c0 fs/udf/namei.c:262
Code: 00 00 e8 eb 9d 76 fe 44 89 f1 41 d3 ec 41 01 dc 44 89 64 24 58 e9 ec fb ff ff e8 d3 9d 76 fe e9 be fe ff ff e8 c9 9d 76 fe 90 <0f> 0b 90 e9 b9 f8 ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 81 e6 ff ff
RSP: 0000:ffffc90007427360 EFLAGS: 00010287
RAX: ffffffff834dd377 RBX: fffff52000e84e90 RCX: 0000000000080000
RDX: ffffc90005521000 RSI: 00000000000018f8 RDI: 00000000000018f9
RBP: ffffc90007427770 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100804647c R12: f8f8f8f8f8f8f8f8
R13: ffff88805f5ba5e8 R14: 00000000ffffff8b R15: ffffc900074279c0
FS:  00007fab663766c0(0000) GS:ffff88812617c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff04a38e000 CR3: 0000000034c34000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 udf_rename+0x7bf/0xdf0 fs/udf/namei.c:843
 vfs_rename+0xa96/0xeb0 fs/namei.c:6054
 filename_renameat2+0x539/0x9c0 fs/namei.c:6172
 __do_sys_rename fs/namei.c:6216 [inline]
 __se_sys_rename+0x55/0x2c0 fs/namei.c:6212
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab6811cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fab66376028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fab68395fa0 RCX: 00007fab6811cdd9
RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000200000000140
RBP: 00007fab681b2d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fab68396038 R14: 00007fab68395fa0 R15: 00007ffcb787aee8
 </TASK>