Re: [syzbot] [exfat?] KASAN: stack-out-of-bounds Read in exfat_nls_to_utf16

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+98cc76a76de46b3714d4@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+98cc76a76de46b3714d4@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         7a405dbb Merge tag 'mm-stable-2025-10-03-16-49' of git..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1436d092580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e2b03b8b7809165e
dashboard link: https://syzkaller.appspot.com/bug?extid=98cc76a76de46b3714d4
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=12b67214580000

Note: testing is done by a robot and is best-effort only.