------------[ cut here ]------------
WARNING: CPU: 0 PID: 6589 at fs/udf/truncate.c:224 udf_truncate_extents+0x985/0xa80 fs/udf/truncate.c:224
Modules linked in:
CPU: 0 UID: 0 PID: 6589 Comm: syz.1.115 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:udf_truncate_extents+0x985/0xa80 fs/udf/truncate.c:224
Code: fe e9 4c f8 ff ff 48 8b 7c 24 18 e8 f5 a2 df fe e9 09 f9 ff ff 48 8b 7c 24 18 e8 e6 a2 df fe e9 a9 f7 ff ff e8 cc 3d 7a fe 90 <0f> 0b 90 e9 a5 f9 ff ff e8 be 3d 7a fe 90 0f 0b 48 8b 7c 24 10 48
RSP: 0018:ffffc90004ae7580 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888076784dd8 RCX: ffffffff83414959
RDX: ffff88802bed0000 RSI: ffffffff83414fb4 RDI: 0000000000000007
RBP: ffffc90004ae7678 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000050 R11: 0000000000000000 R12: ffff88805cc5c000
R13: 0000000000000000 R14: 0000000000000050 R15: ffffc90004ae7638
FS:  00007f9b59dfe6c0(0000) GS:ffff8881246b9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b59dfdf98 CR3: 00000000592ac000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 udf_write_failed.isra.0+0x170/0x1c0 fs/udf/inode.c:178
 udf_write_begin+0x21f/0x2a0 fs/udf/inode.c:265
 generic_perform_write+0x3c5/0x900 mm/filemap.c:4175
 __generic_file_write_iter+0x1f7/0x240 mm/filemap.c:4292
 udf_file_write_iter+0x233/0x7b0 fs/udf/file.c:111
 iter_file_splice_write+0xa24/0x12e0 fs/splice.c:738
 do_splice_from fs/splice.c:938 [inline]
 direct_splice_actor+0x192/0x6c0 fs/splice.c:1161
 splice_direct_to_actor+0x345/0xa30 fs/splice.c:1105
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x174/0x240 fs/splice.c:1230
 do_sendfile+0xb06/0xe50 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64 fs/read_write.c:1417 [inline]
 __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9b5a78ebe9
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:00007f9b59dfe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f9b5a9c6180 RCX: 00007f9b5a78ebe9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005
RBP: 00007f9b5a811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000100800001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9b5a9c6218 R14: 00007f9b5a9c6180 R15: 00007ffde3f504f8
 </TASK>