[syzbot] [udf?] WARNING in udf_prealloc_blocks (3)

[syzbot <syzbot+bd60ece8a4d1116e2c04@syzkaller.appspotmail.com>]

Hello,

syzbot found the following issue on:

HEAD commit:    62f4c998b297 Merge tag 'parisc-for-7.3-rc5' of git://git.k..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13b68205580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2b924f079099ba6e
dashboard link: https://syzkaller.appspot.com/bug?extid=bd60ece8a4d1116e2c04
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-62f4c998.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1f7cc8cb8766/vmlinux-62f4c998.xz
kernel image: https://storage.googleapis.com/syzbot-assets/efe99eedd372/bzImage-62f4c998.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bd60ece8a4d1116e2c04@syzkaller.appspotmail.com

oom_control is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
loop0: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
------------[ cut here ]------------
!buffer_uptodate(bh)
WARNING: fs/buffer.c:991 at mark_buffer_dirty+0x299/0x410 fs/buffer.c:991, CPU#0: syz.0.0/5321
Modules linked in:
CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:mark_buffer_dirty+0x299/0x410 fs/buffer.c:991
Code: 4c 89 f7 e8 29 01 d8 ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 74 52 fb ff e8 6f 59 66 ff eb 8c e8 68 59 66 ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 5a 59 66 ff 90 0f 0b 90 e9 cf fd ff ff
RSP: 0018:ffffc9000e30f170 EFLAGS: 00010287
RAX: ffffffff826193a8 RBX: ffff888043e0e620 RCX: 0000000000100000
RDX: ffffc9000eb82000 RSI: 000000000003b662 RDI: 000000000003b663
RBP: ffffc9000e30f301 R08: ffff888043e0e627 R09: 1ffff110087c1cc4
R10: dffffc0000000000 R11: ffffed10087c1cc5 R12: 0000000000000008
R13: 000000000000016a R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fde834a96c0(0000) GS:ffff88808c2c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fde83467980 CR3: 0000000012ff6000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 udf_bitmap_prealloc_blocks fs/udf/balloc.c:214 [inline]
 udf_prealloc_blocks+0x575/0x11b0 fs/udf/balloc.c:705
 udf_prealloc_extents fs/udf/inode.c:1064 [inline]
 inode_getblk fs/udf/inode.c:925 [inline]
 udf_map_block+0x1ed6/0x4270 fs/udf/inode.c:392
 __udf_get_block+0x52/0x250 fs/udf/inode.c:476
 __block_write_begin_int+0x6c2/0x1900 fs/buffer.c:2030
 block_write_begin+0x8d/0x120 fs/buffer.c:2144
 udf_write_begin+0x118/0x270 fs/udf/inode.c:259
 generic_perform_write+0x2d5/0x8f0 mm/filemap.c:4374
 udf_file_write_iter+0x2e8/0x6c0 fs/udf/file.c:112
 do_iter_readv_writev+0x612/0x8c0 fs/read_write.c:-1
 vfs_writev+0x343/0x990 fs/read_write.c:1058
 do_pwritev fs/read_write.c:1154 [inline]
 __do_sys_pwritev2 fs/read_write.c:1212 [inline]
 __se_sys_pwritev2+0x177/0x2a0 fs/read_write.c:1203
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde8259e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fde834a8fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007fde82825fa0 RCX: 00007fde8259e159
RDX: 0000000000000001 RSI: 0000200000000100 RDI: 000000000000000d
RBP: 00007fde8263506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000005412 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fde82826038 R14: 00007fde82825fa0 R15: 00007fff9cce3ed8
 </TASK>


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