syzbot

loop0: detected capacity change from 0 to 2048
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3546 at fs/udf/inode.c:2020 __udf_add_aext+0x54c/0x6f0
Modules linked in:
CPU: 1 PID: 3546 Comm: syz-executor114 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__udf_add_aext+0x54c/0x6f0 fs/udf/inode.c:2019
Code: 4c 89 e7 e8 f6 38 e4 fe 49 8b 3c 24 4c 89 fe e8 ea 48 03 ff 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 64 c3 8c fe <0f> 0b e9 ed fb ff ff e8 58 c3 8c fe 0f 0b e9 5c fc ff ff e8 4c c3
RSP: 0018:ffffc900039cf158 EFLAGS: 00010293
RAX: ffffffff82fdc18c RBX: 1ffff92000739ee9 RCX: ffff8880232fbb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001d0
RBP: 00000000000001d0 R08: ffffffff82fdbd72 R09: ffffffff82fdbca2
R10: 0000000000000002 R11: ffff8880232fbb80 R12: ffffc900039cf740
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc900039cf748
FS:  00005555572ee380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe783c5000 CR3: 000000001eea2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_setup_indirect_aext+0x6ba/0x980 fs/udf/inode.c:1985
 udf_add_aext fs/udf/inode.c:2072 [inline]
 udf_do_extend_file+0x6df/0x1140 fs/udf/inode.c:563
 inode_getblk fs/udf/inode.c:799 [inline]
 udf_get_block+0x1727/0x5360 fs/udf/inode.c:449
 __block_write_begin_int+0x544/0x1a30 fs/buffer.c:1991
 __block_write_begin fs/buffer.c:2041 [inline]
 block_write_begin+0x98/0x1f0 fs/buffer.c:2102
 udf_write_begin+0x2d/0x60 fs/udf/inode.c:212
 generic_perform_write+0x2fc/0x5e0 mm/filemap.c:3817
 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3945
 udf_file_write_iter+0x291/0x670 fs/udf/file.c:164
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7ae/0xba0 fs/read_write.c:584
 ksys_pwrite64 fs/read_write.c:699 [inline]
 __do_sys_pwrite64 fs/read_write.c:709 [inline]
 __se_sys_pwrite64 fs/read_write.c:706 [inline]
 __x64_sys_pwrite64+0x1a6/0x230 fs/read_write.c:706
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f680f61ea39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe783c4ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f680f66705e RCX: 00007f680f61ea39
RDX: 0000000000000001 RSI: 0000000020000180 RDI: 0000000000000004
RBP: 00007f680f692610 R08: 0000000000000000 R09: 00007ffe783c4cb8
R10: 000004010040bffd R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe783c4ca8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>