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

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 6a97c4d5262d Merge tag 'for-linus' of git://git.kernel.org..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1526c673980000
kernel config: https://syzkaller.appspot.com/x/.config?x=84d8d0173345cb21
dashboard link: https://syzkaller.appspot.com/bug?extid=7be6ad5cb228286af3e3
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8

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-6a97c4d5.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/adcb671bf9d3/vmlinux-6a97c4d5.xz
kernel image: https://storage.googleapis.com/syzbot-assets/26cd02552fc3/bzImage-6a97c4d5.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7be6ad...@syzkaller.appspotmail.com

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1
WARNING: fs/ntfs3/attrib.c:1237 at attr_data_get_block_locked+0x194c/0x2590 fs/ntfs3/attrib.c:1237, CPU#0: syz.0.0/5337
Modules linked in:
CPU: 0 UID: 0 PID: 5337 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:attr_data_get_block_locked+0x194c/0x2590 fs/ntfs3/attrib.c:1237
Code: 44 89 f7 44 89 e6 e8 83 fc a1 fe 45 29 e6 0f 83 c1 00 00 00 e8 b5 fa a1 fe 41 bf ea ff ff ff e9 6b fa ff ff e8 a5 fa a1 fe 90 <0f> 0b 90 41 bf ea ff ff ff e9 57 fa ff ff 48 8b 84 24 c8 00 00 00
RSP: 0018:ffffc9000e4e79a0 EFLAGS: 00010293
RAX: ffffffff8323cacb RBX: 00000000ffffffff RCX: ffff888000fe8000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 00000000ffffffff
RBP: ffffc9000e4e7be8 R08: 0000000000000000 R09: 1ffff11006b3c840
R10: dffffc0000000000 R11: ffffed1006b3c841 R12: ffff8880479e4fd8
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f56995736c0(0000) GS:ffff88808c87b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000003e796000 CR4: 0000000000352ef0
Call Trace:
<TASK>
attr_data_get_block+0x250/0x310 fs/ntfs3/attrib.c:982
ntfs_fallocate+0xfac/0x1220 fs/ntfs3/file.c:674
vfs_fallocate+0x669/0x7e0 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+0xc0/0x110 fs/open.c:365
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0x560 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f569879ce59
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:00007f5699572fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f5698a16090 RCX: 00007f569879ce59
RDX: 0000000000080000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007f5698832d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5698a16128 R14: 00007f5698a16090 R15: 00007fff784160b8
</TASK>


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