syzbot

loop0: detected capacity change from 0 to 128
UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5068 at fs/udf/inode.c:2005 __udf_add_aext+0x574/0x710
Modules linked in:
CPU: 0 PID: 5068 Comm: syz-executor355 Not tainted 6.2.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__udf_add_aext+0x574/0x710 fs/udf/inode.c:2004
Code: 48 89 df e8 5e 90 e0 fe 48 8b 3b be 18 00 00 00 e8 31 ae 02 00 43 80 3c 34 00 0f 85 d7 fe ff ff e9 da fe ff ff e8 5c e8 8a fe <0f> 0b e9 ce fb ff ff e8 50 e8 8a fe 0f 0b e9 34 fc ff ff e8 44 e8
RSP: 0018:ffffc90003b2f290 EFLAGS: 00010293
RAX: ffffffff8300f314 RBX: 1ffff92000765ee5 RCX: ffff8880754a3a80
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8300eedb R09: ffffffff8300ee01
R10: 0000000000000002 R11: ffff8880754a3a80 R12: 0000000000000004
R13: ffffc90003b2f720 R14: dffffc0000000000 R15: ffffc90003b2f728
FS:  000055555559b300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005000 CR3: 0000000024f21000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_add_aext fs/udf/inode.c:2062 [inline]
 udf_do_extend_file+0xa3e/0xf00 fs/udf/inode.c:524
 inode_getblk fs/udf/inode.c:787 [inline]
 udf_get_block+0x161d/0x5130 fs/udf/inode.c:444
 __block_write_begin_int+0x54c/0x1a80 fs/buffer.c:1991
 __block_write_begin fs/buffer.c:2041 [inline]
 block_write_begin+0x93/0x1e0 fs/buffer.c:2102
 udf_write_begin+0x2d/0x60 fs/udf/inode.c:207
 generic_perform_write+0x2e4/0x5e0 mm/filemap.c:3772
 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3900
 udf_file_write_iter+0x325/0x5f0 fs/udf/file.c:170
 call_write_iter include/linux/fs.h:2186 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7dc/0xc50 fs/read_write.c:584
 ksys_write+0x177/0x2a0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f459fa7e969
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff5b20ae98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f459fac2508 RCX: 00007f459fa7e969
RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000006
RBP: 00007f459fa3e200 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f459fa3e290
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>