loop5: detected capacity change from 0 to 512
UDF-fs: error (device loop5): udf_read_tagged: read failed, block=256, location=256
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15761 at fs/udf/truncate.c:224 udf_truncate_extents+0xd46/0xeb0 fs/udf/truncate.c:224
Modules linked in:
CPU: 0 PID: 15761 Comm: syz.5.1595 Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:udf_truncate_extents+0xd46/0xeb0 fs/udf/truncate.c:224
Code: 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 01 00 00 75 70 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 3a 4f 8e fe <0f> 0b eb 8e 44 89 e9 80 e1 07 38 c1 0f 8c ec f3 ff ff 4c 89 ef e8
RSP: 0018:ffffc90004b1f8e0 EFLAGS: 00010283
RAX: ffffffff82f74656 RBX: 1ffff1100f0ebe72 RCX: 0000000000080000
RDX: ffffc900128e0000 RSI: 000000000001264e RDI: 000000000001264f
RBP: ffffc90004b1fac0 R08: ffff8880235f9e00 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
FS:  00007f341fbc96c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000006c260000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 udf_write_failed+0x180/0x1b0 fs/udf/inode.c:178
 udf_write_begin+0x21f/0x430 fs/udf/inode.c:264
 generic_perform_write+0x2fb/0x5b0 mm/filemap.c:4016
 udf_file_write_iter+0x2c0/0x620 fs/udf/file.c:111
 call_write_iter include/linux/fs.h:2018 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x43b/0x940 fs/read_write.c:584
 ksys_write+0x147/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f341ed8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f341fbc9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f341efb5fa0 RCX: 00007f341ed8ebe9
RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 0000000000000004
RBP: 00007f341ee11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f341efb6038 R14: 00007f341efb5fa0 R15: 00007ffd8b70a938
 </TASK>