------------[ cut here ]------------
WARNING: CPU: 1 PID: 9780 at fs/udf/truncate.c:224 udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224
Modules linked in:
CPU: 1 UID: 0 PID: 9780 Comm: syz.5.476 Tainted: G        W           syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224
Code: 0e c7 0e 48 3b 84 24 80 01 00 00 75 77 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 4b 3e cb 07 cc e8 a5 aa 8f fe 90 <0f> 0b 90 eb 88 44 89 e9 80 e1 07 38 c1 0f 8c e4 f3 ff ff 4c 89 ef
RSP: 0018:ffffc900047cf3e0 EFLAGS: 00010287
RAX: ffffffff832eb19b RBX: 1ffff1100b95063d RCX: 0000000000080000
RDX: ffffc90011403000 RSI: 0000000000002bf5 RDI: 0000000000002bf6
RBP: ffffc900047cf5b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
FS:  00007efdb3e4e6c0(0000) GS:ffff8881269c4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0a2a74f5c4 CR3: 0000000028ac6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 udf_write_failed+0x18b/0x1c0 fs/udf/inode.c:178
 udf_write_begin+0x214/0x270 fs/udf/inode.c:265
 generic_perform_write+0x29a/0x8c0 mm/filemap.c:4175
 __generic_file_write_iter+0x1b1/0x240 mm/filemap.c:4289
 udf_file_write_iter+0x2f4/0x6e0 fs/udf/file.c:111
 iter_file_splice_write+0x97a/0x10f0 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+0x5b3/0xcd0 fs/splice.c:1105
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x187/0x270 fs/splice.c:1230
 do_sendfile+0x4ec/0x7f0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efdb5beebe9
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:00007efdb3e4e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007efdb5e15fa0 RCX: 00007efdb5beebe9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007efdb5c71e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efdb5e16038 R14: 00007efdb5e15fa0 R15: 00007ffe42c7c588
 </TASK>