loop0: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4334 at fs/udf/inode.c:560 udf_extend_file fs/udf/inode.c:559 [inline]
WARNING: CPU: 1 PID: 4334 at fs/udf/inode.c:560 udf_setsize+0xdb1/0x1090 fs/udf/inode.c:1156
Modules linked in:
CPU: 1 PID: 4334 Comm: syz.0.19 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:udf_extend_file fs/udf/inode.c:559 [inline]
RIP: 0010:udf_setsize+0xdb1/0x1090 fs/udf/inode.c:1156
Code: b5 fe 45 85 e4 74 0a e8 fd e3 b5 fe e9 47 ff ff ff e8 f3 e3 b5 fe 49 bc 00 00 00 00 00 fc ff df e9 11 fe ff ff e8 df e3 b5 fe <0f> 0b e9 fe f7 ff ff 44 89 e9 80 e1 07 38 c1 0f 8c e4 f2 ff ff 4c
RSP: 0018:ffffc9000323fb80 EFLAGS: 00010293
RAX: ffffffff82c1e041 RBX: ffff88806a701af8 RCX: ffff88807c6c8000
RDX: 0000000000000000 RSI: 0000000000000c00 RDI: 0000000000000400
RBP: ffffc9000323fcd0 R08: dffffc0000000000 R09: ffffed100d4e0358
R10: ffffed100d4e0358 R11: 1ffff1100d4e0357 R12: 0000000000000009
R13: 00000000fffffff0 R14: 0000000000000c00 R15: 0000000000000400
FS:  00007f3e9cac66c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4c341ac000 CR3: 000000001f620000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_setattr+0x404/0x560 fs/udf/file.c:277
 notify_change+0xbcd/0xee0 fs/attr.c:505
 do_truncate+0x197/0x220 fs/open.c:65
 do_sys_ftruncate+0x31b/0x3d0 fs/open.c:193
 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: 0033:0x7f3e9d856b69
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:00007f3e9cac6038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f3e9da7dfa0 RCX: 00007f3e9d856b69
RDX: 0000000000000000 RSI: 00000000000007fa RDI: 0000000000000004
RBP: 00007f3e9d8d9df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3e9da7dfa0 R15: 00007fffc3c566a8
 </TASK>