syzbot

loop0: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000)
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WARNING: CPU: 0 PID: 5845 at fs/udf/inode.c:2081 __udf_add_aext+0x524/0x6d0 fs/udf/inode.c:2080
Modules linked in:
CPU: 0 UID: 0 PID: 5845 Comm: syz-executor347 Not tainted 6.16.0-rc7-syzkaller-00114-g327579671a9b #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__udf_add_aext+0x524/0x6d0 fs/udf/inode.c:2080
Code: 95 ed fe 49 8b 3e 4c 89 e6 e8 38 de 0f ff 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 8e 9d db fd cc e8 5d 83 8b fe 90 <0f> 0b 90 e9 14 fc ff ff e8 4f 83 8b fe 90 0f 0b 90 e9 66 fd ff ff
RSP: 0018:ffffc9000397f248 EFLAGS: 00010293
RAX: ffffffff8334a383 RBX: dffffc0000000000 RCX: ffff88807c620000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001e0
RBP: 1ffff9200072fee5 R08: ffff88807c620000 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000001e0
R13: 0000000000000000 R14: ffffc9000397f720 R15: ffffc9000397f728
FS:  000055557fe31380(0000) GS:ffff888125c23000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f849da600f8 CR3: 0000000076865000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 udf_setup_indirect_aext+0x609/0x800 fs/udf/inode.c:2043
 udf_add_aext fs/udf/inode.c:2133 [inline]
 udf_do_extend_file+0x870/0x1180 fs/udf/inode.c:584
 inode_getblk fs/udf/inode.c:836 [inline]
 udf_map_block+0xf64/0x42a0 fs/udf/inode.c:447
 __udf_get_block+0x52/0x250 fs/udf/inode.c:461
 __block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2151
 block_write_begin+0x8a/0x120 fs/buffer.c:2262
 udf_write_begin+0x100/0x260 fs/udf/inode.c:256
 generic_perform_write+0x2c7/0x910 mm/filemap.c:4112
 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:111
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x54b/0xa90 fs/read_write.c:686
 ksys_pwrite64 fs/read_write.c:793 [inline]
 __do_sys_pwrite64 fs/read_write.c:801 [inline]
 __se_sys_pwrite64 fs/read_write.c:798 [inline]
 __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f849d9e7f99
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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:00007ffc5ad771d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 6573726168636f69 RCX: 00007f849d9e7f99
RDX: 0000000000000001 RSI: 0000200000000300 RDI: 0000000000000004
RBP: 00007f849da5c5f0 R08: 000055557fe324c0 R09: 000055557fe324c0
R10: 0000010000000005 R11: 0000000000000246 R12: 00007ffc5ad77200
R13: 00007ffc5ad77428 R14: 431bde82d7b634db R15: 00007f849da3103b
 </TASK>