UDF-fs: error (device loop4): udf_fiiter_advance_blk: extent after position 0 not allocated in directory (ino 1408)
UDF-fs: error (device loop4): udf_verify_fi: directory (ino 1408) has entry at pos 0 with incorrect tag 10a
------------[ cut here ]------------
WARNING: CPU: 1 PID: 17947 at fs/udf/namei.c:220 udf_expand_dir_adinicb fs/udf/namei.c:220 [inline]
WARNING: CPU: 1 PID: 17947 at fs/udf/namei.c:220 udf_fiiter_add_entry+0x18dc/0x1eb0 fs/udf/namei.c:270
Modules linked in:
CPU: 1 PID: 17947 Comm: syz.4.2315 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:udf_expand_dir_adinicb fs/udf/namei.c:220 [inline]
RIP: 0010:udf_fiiter_add_entry+0x18dc/0x1eb0 fs/udf/namei.c:270
Code: 78 0f e8 e7 f9 af fe 4c 8b 74 24 10 e9 5c f2 ff ff e8 d8 f9 af fe 49 bc f8 f8 f8 f8 f8 f8 f8 f8 e9 63 f7 ff ff e8 c4 f9 af fe <0f> 0b e9 54 ff ff ff 89 f1 80 e1 07 38 c1 0f 8c 20 e8 ff ff 48 8b
RSP: 0018:ffffc90002fdf800 EFLAGS: 00010287
RAX: ffffffff82c9299c RBX: 0000000000000120 RCX: 0000000000080000
RDX: ffffc9000faef000 RSI: 00000000000400f9 RDI: 00000000000400fa
RBP: ffffc90002fdfbf0 R08: ffff888074320233 R09: 1ffff1100e864046
R10: dffffc0000000000 R11: ffffed100e864047 R12: ffffc90002fdfc68
R13: ffffc90002fdfc60 R14: fffff520005fbf20 R15: 00000000ffffff8b
FS:  00007fef756726c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff80bc742f8 CR3: 0000000049017000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_link+0xfc/0x380 fs/udf/namei.c:721
 vfs_link+0x611/0x7c0 fs/namei.c:4608
 do_linkat+0x285/0x870 fs/namei.c:4679
 __do_sys_link fs/namei.c:4713 [inline]
 __se_sys_link fs/namei.c:4711 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4711
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fef7741a1d9
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:00007fef75672028 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007fef776a1fa0 RCX: 00007fef7741a1d9
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000200000000400
RBP: 00007fef774b1888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fef776a2038 R14: 00007fef776a1fa0 R15: 00007ffcf210eed8
 </TASK>