Re: [syzbot] [exfat?] KASAN: stack-out-of-bounds Read in exfat_nls_to_ucs2

From: syzbot

Date: Tue Oct 14 2025 - 00:06:03 EST


Hello,

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

Reported-by: syzbot+29934710e7fb9cb71f33@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+29934710e7fb9cb71f33@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 3a866087 Linux 6.18-rc1
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16aae52f980000
kernel config: https://syzkaller.appspot.com/x/.config?x=1921939e847e6e87
dashboard link: https://syzkaller.appspot.com/bug?extid=29934710e7fb9cb71f33
compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=15e39542580000

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