Re: [syzbot] [ntfs3?] WARNING in attr_data_get_block_locked (2)

syzbot has found a reproducer for the following issue on:

HEAD commit:    1dc18801be29 Merge tag 'i2c-7.2-part2' of git://git.kernel..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17ecdb7a580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=94d9c5c9d8d33570
dashboard link: https://syzkaller.appspot.com/bug?extid=7be6ad5cb228286af3e3
compiler:       Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=101cdb7a580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17dea7a1580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/2b813bcdd826/disk-1dc18801.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/42eb0df4dd35/vmlinux-1dc18801.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5e2abf42fb92/bzImage-1dc18801.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/217841d6611e/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]

WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
ntfs3(loop0): Different NTFS sector size (1024) and media sector size (512).
ntfs3(loop0): Failed to load $Extend (-22).
ntfs3(loop0): Failed to initialize $Extend.
------------[ cut here ]------------
1
WARNING: fs/ntfs3/attrib.c:1237 at attr_data_get_block_locked+0x1936/0x2610 fs/ntfs3/attrib.c:1237, CPU#1: syz.0.17/5827
Modules linked in:
CPU: 1 UID: 0 PID: 5827 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:attr_data_get_block_locked+0x1936/0x2610 fs/ntfs3/attrib.c:1237
Code: b0 b1 a7 fe 89 9c 24 90 00 00 00 41 29 dc 0f 83 cc 00 00 00 e8 ab af a7 fe 41 bf ea ff ff ff e9 7c fa ff ff e8 9b af a7 fe 90 <0f> 0b 90 41 bf ea ff ff ff e9 68 fa ff ff 48 8b 84 24 d8 00 00 00
RSP: 0018:ffffc9000476f9a0 EFLAGS: 00010293
RAX: ffffffff831d47f5 RBX: 00000000ffffffff RCX: ffff888036b38000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000476fbe8 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f1385f R12: ffff88804c3010e8
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00005555611e4500(0000) GS:ffff888126242000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32863fff CR3: 000000003f434000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 attr_data_get_block+0x250/0x310 fs/ntfs3/attrib.c:982
 ntfs_fallocate+0x1048/0x12d0 fs/ntfs3/file.c:702
 vfs_fallocate+0x663/0x7f0 fs/open.c:338
 ksys_fallocate fs/open.c:362 [inline]
 __do_sys_fallocate fs/open.c:367 [inline]
 __se_sys_fallocate fs/open.c:365 [inline]
 __x64_sys_fallocate+0xbf/0x110 fs/open.c:365
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff0d001ce59
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:00007ffc29a8c788 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007ff0d0295fa0 RCX: 00007ff0d001ce59
RDX: 0000000000080000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007ff0d00b2e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff0d0295fac R14: 00007ff0d0295fa0 R15: 00007ff0d0295fa0
 </TASK>


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