------------[ cut here ]------------
WARNING: CPU: 0 PID: 14471 at fs/udf/inode.c:2081 __udf_add_aext+0x555/0x700 fs/udf/inode.c:2080
Modules linked in:
CPU: 0 UID: 0 PID: 14471 Comm: syz.6.1408 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__udf_add_aext+0x555/0x700 fs/udf/inode.c:2080
Code: 13 d7 fe 49 8b 3c 24 4c 89 fe e8 a6 d3 fb fe 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d e9 cc 5d ba fd e8 dc d9 6c fe 90 <0f> 0b 90 e9 e7 fb ff ff e8 ce d9 6c fe 90 0f 0b 90 e9 54 fc ff ff
RSP: 0018:ffffc90003acedf8 EFLAGS: 00010293
RAX: ffffffff8355e344 RBX: 1ffff92000759e0b RCX: ffff8880512cda00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8355df26 R09: ffffffff8355de56
R10: 0000000000000002 R11: ffff8880512cda00 R12: ffffc90003acf050
R13: 0000000000000004 R14: dffffc0000000000 R15: ffffc90003acf058
FS:  000055557c638500(0000) GS:ffff888124f9a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1240e56c0 CR3: 000000005cb60000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 udf_add_aext fs/udf/inode.c:2138 [inline]
 udf_insert_aext fs/udf/inode.c:2317 [inline]
 udf_update_extents fs/udf/inode.c:1205 [inline]
 inode_getblk fs/udf/inode.c:919 [inline]
 udf_map_block+0x402c/0x55c0 fs/udf/inode.c:447
 __udf_get_block+0x128/0x410 fs/udf/inode.c:461
 __block_write_begin_int+0x693/0x1930 fs/buffer.c:2116
 udf_page_mkwrite+0x5bf/0x8d0 fs/udf/file.c:65
 do_page_mkwrite+0x15b/0x340 mm/memory.c:3287
 wp_page_shared mm/memory.c:3688 [inline]
 do_wp_page+0x2b7e/0x5dc0 mm/memory.c:3907
 handle_pte_fault+0xfaf/0x61c0 mm/memory.c:6013
 __handle_mm_fault mm/memory.c:6140 [inline]
 handle_mm_fault+0x1129/0x1bf0 mm/memory.c:6309
 do_user_addr_fault arch/x86/mm/fault.c:1337 [inline]
 handle_page_fault arch/x86/mm/fault.c:1480 [inline]
 exc_page_fault+0x45b/0x920 arch/x86/mm/fault.c:1538
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7efffc7559ca
Code: 00 01 00 00 00 74 99 83 f9 c0 0f 87 7b fe ff ff c5 fe 6f 4e 20 48 29 fe 48 83 c7 3f 49 8d 0c 10 48 83 e7 c0 48 01 fe 48 29 f9 <f3> a4 c4 c1 7e 7f 00 c4 c1 7e 7f 48 20 c5 f8 77 c3 0f 1f 44 00 00
RSP: 002b:00007ffc91dad008 EFLAGS: 00010206
RAX: 0000200000021340 RBX: 0000000000000004 RCX: 000000000001d5d5
RDX: 000000000001f295 RSI: 00007efffc20313a RDI: 0000200000023000
RBP: 00007ffc91dad0d8 R08: 0000200000021340 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000002 R12: 00007efffc9b616c
R13: 00007ffc91dad100 R14: fffffffffffffffe R15: 00007ffc91dad120
 </TASK>