UDF-fs: error (device loop6): udf_fiiter_advance_blk: extent after position 84 not allocated in directory (ino 1408) ------------[ cut here ]------------ ret WARNING: fs/udf/namei.c:214 at udf_expand_dir_adinicb+0xc87/0xed0 fs/udf/namei.c:214, CPU#1: syz.6.830/8518 Modules linked in: CPU: 1 UID: 0 PID: 8518 Comm: syz.6.830 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/10/2026 RIP: 0010:udf_expand_dir_adinicb+0xc87/0xed0 fs/udf/namei.c:214 Code: d6 d3 fe 48 8b 4c 24 38 48 8b 54 24 28 e9 58 fa ff ff e8 2c 54 64 fe 4c 89 ff e8 b4 aa fd fe e9 1b f8 ff ff e8 1a 54 64 fe 90 <0f> 0b 90 e9 e7 fd ff ff bb 8b ff ff ff e9 f4 f5 ff ff bb f4 ff ff RSP: 0018:ffffc9000d527420 EFLAGS: 00010287 RAX: 000000000000c472 RBX: 00000000ffffff8b RCX: ffffc9001f0c3000 RDX: 0000000000080000 RSI: ffffffff83a56766 RDI: ffff888026c08000 RBP: ffffc9000d527698 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffff8b R11: 0000000000000000 R12: 00000000ffffff8b R13: 0000000000000000 R14: 0000000000000000 R15: ffff888049dd1b60 FS: 00007ff60a85c6c0(0000) GS:ffff888123eeb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa091612000 CR3: 000000007a285000 CR4: 0000000000350ef0 Call Trace: udf_fiiter_add_entry+0xcb1/0x10c0 fs/udf/namei.c:262 udf_rename+0xaf1/0xdc0 fs/udf/namei.c:843 vfs_rename+0xc9f/0x2000 fs/namei.c:6074 filename_renameat2+0x754/0xa60 fs/namei.c:6192 __do_sys_rename fs/namei.c:6236 [inline] __se_sys_rename fs/namei.c:6232 [inline] __x64_sys_rename+0x81/0xb0 fs/namei.c:6232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff60999de59 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:00007ff60a85c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007ff609c25fa0 RCX: 00007ff60999de59 RDX: 0000000000000000 RSI: 0000200000000f40 RDI: 00002000000003c0 RBP: 00007ff609a33e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff609c26038 R14: 00007ff609c25fa0 R15: 00007fff4910ea28