------------[ cut here ]------------
WARNING: CPU: 1 PID: 4740 at fs/udf/inode.c:1928 __udf_add_aext+0x564/0x6f0
Modules linked in:
CPU: 1 PID: 4740 Comm: kworker/u4:16 Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: writeback wb_workfn (flush-7:5)
RIP: 0010:__udf_add_aext+0x564/0x6f0 fs/udf/inode.c:1927
Code: c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d4 e5 81 fe 0f 0b e9 ed fb ff ff e8 c8 e5 81 fe 0f 0b e9 5c fc ff ff e8 bc e5 81 fe <0f> 0b e9 4f fd ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c d1 fa
RSP: 0018:ffffc90003446898 EFLAGS: 00010293
RAX: ffffffff8308b114 RBX: 0000000000000150 RCX: ffff888026b39dc0
RDX: 0000000000000000 RSI: 0000000000000150 RDI: ffffffffffffff68
RBP: 00000000bffffe00 R08: ffffffff8308ae5c R09: ffffffff8308ac12
R10: 0000000000000002 R11: ffff888026b39dc0 R12: ffffc90003446ac0
R13: ffffffffffffff68 R14: dffffc0000000000 R15: 0000000000000010
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa55a7fe000 CR3: 0000000030b88000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_add_aext fs/udf/inode.c:1989 [inline]
 udf_insert_aext fs/udf/inode.c:2160 [inline]
 udf_update_extents fs/udf/inode.c:1060 [inline]
 inode_getblk fs/udf/inode.c:776 [inline]
 udf_get_block+0x3cc7/0x5370 fs/udf/inode.c:359
 __mpage_writepage+0x40d/0x1930 fs/mpage.c:533
 write_cache_pages+0x92e/0x15c0 mm/page-writeback.c:2382
 mpage_writepages+0x103/0x1d0 fs/mpage.c:664
 do_writepages+0x3a2/0x670 mm/page-writeback.c:2491
 __writeback_single_inode+0x15d/0x11e0 fs/fs-writeback.c:1612
 writeback_sb_inodes+0xc2b/0x1b20 fs/fs-writeback.c:1903
 wb_writeback+0x49d/0xe10 fs/fs-writeback.c:2077
 wb_do_writeback fs/fs-writeback.c:2220 [inline]
 wb_workfn+0x427/0x1020 fs/fs-writeback.c:2260
 process_one_work+0x917/0x1260 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>