UDF-fs: error (device loop6): 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#1: syz.6.1463/12065 WARNING: fs/udf/namei.c:214 at udf_fiiter_add_entry+0x1a78/0x20c0 fs/udf/namei.c:262, CPU#1: syz.6.1463/12065 Modules linked in: CPU: 1 UID: 0 PID: 12065 Comm: syz.6.1463 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP 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 3b cf 6d fe 44 89 f1 41 d3 ec 41 01 dc 44 89 64 24 58 e9 ec fb ff ff e8 23 cf 6d fe e9 be fe ff ff e8 19 cf 6d 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: 0018:ffffc90003fd7360 EFLAGS: 00010287 RAX: ffffffff8357dd17 RBX: fffff520007fae90 RCX: 0000000000080000 RDX: ffffc90005ae1000 RSI: 0000000000008934 RDI: 0000000000008935 RBP: ffffc90003fd7770 R08: ffff88805231414b R09: 1ffff1100a462829 R10: dffffc0000000000 R11: ffffed100a46282a R12: f8f8f8f8f8f8f8f8 R13: ffff8880542153f0 R14: 00000000ffffff8b R15: ffffc90003fd79c0 FS: 00007f9c243d56c0(0000) GS:ffff888125390000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa5fc207000 CR3: 00000000a7a72000 CR4: 0000000000350ef0 Call Trace: 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: 0033:0x7f9c2359cdd9 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:00007f9c243d5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f9c23815fa0 RCX: 00007f9c2359cdd9 RDX: 0000000000000000 RSI: 0000200000000f40 RDI: 00002000000003c0 RBP: 00007f9c23632d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9c23816038 R14: 00007f9c23815fa0 R15: 00007ffede5e7808