------------[ cut here ]------------
WARNING: CPU: 1 PID: 5249 at fs/udf/truncate.c:209 udf_truncate_extents+0xcb4/0xe30 fs/udf/truncate.c:209
Modules linked in:
CPU: 1 PID: 5249 Comm: kworker/u4:28 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: writeback wb_workfn (flush-7:4)
RIP: 0010:udf_truncate_extents+0xcb4/0xe30 fs/udf/truncate.c:209
Code: 25 28 00 00 00 48 3b 84 24 80 01 00 00 0f 85 b5 00 00 00 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 cc 6c 9b fe <0f> 0b 49 bd 00 00 00 00 00 fc ff df eb 8b 44 89 e9 80 e1 07 38 c1
RSP: 0018:ffffc900037d66a0 EFLAGS: 00010293
RAX: ffffffff82e56994 RBX: ffff88823bd6ab70 RCX: ffff88807fb78000
RDX: 0000000000000000 RSI: 00000020ffe3e9fc RDI: 0000000000000000
RBP: ffffc900037d6870 R08: ffff88807fb78000 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000000 R12: 00000020ffe3e9fc
R13: ffff888060666018 R14: 00000020fffffffc R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff9abbe7dac CR3: 0000000054147000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_do_extend_file+0xd22/0x1030 fs/udf/inode.c:479
 inode_getblk fs/udf/inode.c:686 [inline]
 udf_get_block+0xdd3/0x3cd0 fs/udf/inode.c:359
 __block_write_full_page+0x349/0x1680 fs/buffer.c:1745
 __mpage_writepage+0x127d/0x1740 fs/mpage.c:629
 write_cache_pages+0x85b/0x1400 mm/page-writeback.c:2382
 mpage_writepages+0xe4/0x190 fs/mpage.c:664
 do_writepages+0x3b7/0x610 mm/page-writeback.c:2491
 __writeback_single_inode+0x156/0x1160 fs/fs-writeback.c:1622
 writeback_sb_inodes+0xad8/0x17d0 fs/fs-writeback.c:1913
 wb_writeback+0x468/0xd00 fs/fs-writeback.c:2087
 wb_do_writeback fs/fs-writeback.c:2230 [inline]
 wb_workfn+0x435/0xec0 fs/fs-writeback.c:2270
 process_one_work+0x898/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1250 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>