------------[ cut here ]------------
WARNING: CPU: 0 PID: 15023 at fs/udf/truncate.c:224 udf_truncate_extents+0xd87/0xef0 fs/udf/truncate.c:224
Modules linked in:
CPU: 0 PID: 15023 Comm: syz.1.1916 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:udf_truncate_extents+0xd87/0xef0 fs/udf/truncate.c:224
Code: 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 01 00 00 75 73 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d9 6f 89 fe <0f> 0b e9 6a ff ff ff 44 89 e9 80 e1 07 38 c1 0f 8c e8 f3 ff ff 4c
RSP: 0018:ffffc9000bcef2e0 EFLAGS: 00010283
RAX: ffffffff82fda3c7 RBX: 1ffff1100b64f8d7 RCX: 0000000000080000
RDX: ffffc9000d88a000 RSI: 000000000000d888 RDI: 000000000000d889
RBP: ffffc9000bcef4c0 R08: ffff888030b29e00 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
FS:  00007fdbeebc16c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd6573ab000 CR3: 0000000065dd3000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 udf_write_failed+0x180/0x1b0 fs/udf/inode.c:178
 udf_write_begin+0x21f/0x420 fs/udf/inode.c:264
 generic_perform_write+0x2fe/0x5c0 mm/filemap.c:4031
 __generic_file_write_iter+0x1ac/0x230 mm/filemap.c:4123
 udf_file_write_iter+0x2b5/0x610 fs/udf/file.c:111
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x738/0xc30 fs/read_write.c:860
 iter_file_splice_write+0x6a3/0xcb0 fs/splice.c:736
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0xe8/0x130 fs/splice.c:1142
 splice_direct_to_actor+0x304/0x8c0 fs/splice.c:1088
 do_splice_direct+0x1d5/0x2f0 fs/splice.c:1194
 do_sendfile+0x5f2/0xef0 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64+0x145/0x1a0 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdbedd9bf79
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:00007fdbeebc1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fdbee015fa0 RCX: 00007fdbedd9bf79
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007fdbede327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdbee016038 R14: 00007fdbee015fa0 R15: 00007ffc849044c8
 </TASK>