------------[ cut here ]------------
WARNING: fs/udf/truncate.c:224 at udf_truncate_extents+0xd8d/0xf00 fs/udf/truncate.c:224, CPU#1: syz.9.142/7106
Modules linked in:
CPU: 1 UID: 0 PID: 7106 Comm: syz.9.142 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:udf_truncate_extents+0xd8d/0xf00 fs/udf/truncate.c:224
Code: 20 b6 0e 48 3b 84 24 80 01 00 00 75 7a 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 1a 5d b2 07 cc e8 04 0d 83 fe 90 <0f> 0b 90 e9 64 ff ff ff 44 89 e9 80 e1 07 38 c1 0f 8c e0 f3 ff ff
RSP: 0018:ffffc90003c973e0 EFLAGS: 00010283
RAX: ffffffff833e4f8c RBX: 1ffff1100ba812ab RCX: 0000000000080000
RDX: ffffc9000eef3000 RSI: 000000000000399d RDI: 000000000000399e
RBP: ffffc90003c975b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
FS:  00007fe13b3a66c0(0000) GS:ffff8881269d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7af43da08 CR3: 000000005c284000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 udf_write_failed+0x18b/0x1c0 fs/udf/inode.c:178
 udf_write_begin+0x217/0x270 fs/udf/inode.c:265
 generic_perform_write+0x2af/0x8b0 mm/filemap.c:4314
 __generic_file_write_iter+0x1b1/0x240 mm/filemap.c:4428
 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:111
 iter_file_splice_write+0x9a0/0x1100 fs/splice.c:738
 do_splice_from fs/splice.c:938 [inline]
 direct_splice_actor+0x104/0x160 fs/splice.c:1161
 splice_direct_to_actor+0x545/0xc80 fs/splice.c:1105
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x19b/0x2a0 fs/splice.c:1230
 do_sendfile+0x547/0x7d0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe13d14acb9
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:00007fe13b3a6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fe13d3c5fa0 RCX: 00007fe13d14acb9
RDX: 0000000000000000 RSI: 000000000000000d RDI: 000000000000000c
RBP: 00007fe13d1b8bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe13d3c6038 R14: 00007fe13d3c5fa0 R15: 00007ffdc89202b8
 </TASK>