------------[ cut here ]------------
WARNING: CPU: 0 PID: 23301 at fs/udf/inode.c:2049 __udf_add_aext+0x67a/0x7d0 fs/udf/inode.c:2049
Modules linked in:
CPU: 0 PID: 23301 Comm: syz-executor.4 Not tainted 6.3.0-rc2-syzkaller-00077-g38e04b3e4240 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:__udf_add_aext+0x67a/0x7d0 fs/udf/inode.c:2049
Code: ef 0f 84 b3 fb ff ff e8 44 59 a2 fe 0f 0b e9 a7 fb ff ff e8 38 59 a2 fe 48 8b 44 24 20 48 05 b0 00 00 00 eb b7 e8 26 59 a2 fe <0f> 0b e9 27 fb ff ff e8 1a 59 a2 fe 0f 0b e9 7d fb ff ff 41 bc fb
RSP: 0018:ffffc90004d573a8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc90004d57710 RCX: 0000000000000000
RDX: ffff88801d612280 RSI: ffffffff82dfac8a RDI: 0000000000000006
RBP: ffff888082617218 R08: 0000000000000006 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000010 R15: 0000000000000018
FS:  0000555556a19400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020025000 CR3: 0000000029e3b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_add_aext+0x23f/0x2e0 fs/udf/inode.c:2107
 udf_insert_aext fs/udf/inode.c:2269 [inline]
 udf_update_extents fs/udf/inode.c:1189 [inline]
 inode_getblk+0x2202/0x3e50 fs/udf/inode.c:904
 udf_map_block+0x2e3/0x560 fs/udf/inode.c:450
 __udf_get_block+0x9c/0x330 fs/udf/inode.c:464
 __block_write_begin_int+0x3bd/0x14b0 fs/buffer.c:2034
 udf_page_mkwrite+0x474/0xb00 fs/udf/file.c:69
 do_page_mkwrite+0x19b/0x680 mm/memory.c:2925
 wp_page_shared mm/memory.c:3274 [inline]
 do_wp_page+0x356/0x3610 mm/memory.c:3356
 handle_pte_fault mm/memory.c:4927 [inline]
 __handle_mm_fault+0x19a1/0x3e60 mm/memory.c:5051
 handle_mm_fault+0x2ba/0x9c0 mm/memory.c:5197
 do_user_addr_fault+0x475/0x1230 arch/x86/mm/fault.c:1407
 handle_page_fault arch/x86/mm/fault.c:1498 [inline]
 exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1554
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f1eede86d61
Code: c5 00 0f 87 cc 00 00 00 0f 10 06 0f 10 4e 10 0f 10 56 20 0f 10 5e 30 48 83 c6 40 48 83 ea 40 0f 29 07 0f 29 4f 10 0f 29 57 20 <0f> 29 5f 30 48 83 c7 40 48 83 fa 40 77 d0 0f 11 29 0f 11 71 f0 0f
RSP: 002b:00007ffce4a2b8b8 EFLAGS: 00010202
RAX: 000000002005d540 RBX: 0000000000000000 RCX: 000000002007c6c7
RDX: 00000000000076c7 RSI: 00007f1eeda18ff8 RDI: 0000000020074fd0
RBP: 00007ffce4a2b978 R08: fffffffffffffff0 R09: 00007f1eeda00000
R10: 00007f1eeda01510 R11: 000000002005d540 R12: 00000000001f76c7
R13: 00007ffce4a2b9a0 R14: 00007ffce4a2b9c0 R15: 0000000000000032
 </TASK>