------------[ cut here ]------------
WARNING: CPU: 1 PID: 16300 at fs/udf/truncate.c:224 udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224
Modules linked in:
CPU: 1 UID: 0 PID: 16300 Comm: syz.4.2497 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224
Code: 63 67 0f 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 a6 f4 d6 fd cc e8 f5 70 86 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:ffffc90003bbe800 EFLAGS: 00010283
RAX: ffffffff83394c6b RBX: 1ffff1100f4c7800 RCX: 0000000000080000
RDX: ffffc9000dc91000 RSI: 0000000000004119 RDI: 000000000000411a
RBP: ffffc90003bbe9d8 R08: ffff8880274bbc00 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000120 R15: 0000000000000120
FS:  00007fb30b2c76c0(0000) GS:ffff888125d15000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000101 CR3: 000000003e98b000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 udf_write_failed+0x185/0x1c0 fs/udf/inode.c:178
 udf_write_begin+0x212/0x270 fs/udf/inode.c:265
 generic_perform_write+0x2c5/0x900 mm/filemap.c:4175
 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:111
 __kernel_write_iter+0x428/0x910 fs/read_write.c:619
 __kernel_write+0xef/0x150 fs/read_write.c:639
 __dump_emit+0x206/0x310 fs/coredump.c:1218
 elf_core_dump+0x2d2f/0x3990 fs/binfmt_elf.c:2064
 coredump_write+0x1169/0x1900 fs/coredump.c:1049
 vfs_coredump+0x1daa/0x2a50 fs/coredump.c:1168
 get_signal+0x1109/0x1340 kernel/signal.c:3019
 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb30a24f920
Code: 48 c1 e8 12 83 e0 01 88 15 d2 5d eb 00 88 05 cf 5d eb 00 c3 50 48 8d 35 01 25 1c 00 48 8d 3d 07 25 1c 00 31 c0 e8 20 f7 ff ff <53> 89 fb 48 83 ec 10 64 8b 04 25 94 ff ff ff 85 c0 74 2a 89 fe 31
RSP: 002b:00007fb30b2c6b38 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007fb30a5d5fa8 RCX: 00007fb30a38eba9
RDX: 00007fb30b2c6b40 RSI: 00007fb30b2c6c70 RDI: 000000000000000b
RBP: 00007fb30a5d5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb30a5d6038 R14: 00007fffde964ac0 R15: 00007fffde964ba8
 </TASK>