linux-kernel - Re: [syzbot] KASAN: slab-out-of-bounds Read in mi_find

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Message-ID: <000000000000171a2805f38bf07a@google.com>
Date:   Tue, 31 Jan 2023 01:27:17 -0800
From:   syzbot <syzbot+8ebb469b64740648f1c3@...kaller.appspotmail.com>
To:     almaz.alexandrovich@...agon-software.com, edward.lo@...ergroup.io,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        ntfs3@...ts.linux.dev, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: [syzbot] KASAN: slab-out-of-bounds Read in mi_find_attr

syzbot suspects this issue was fixed by commit:

commit 4f1dc7d9756e66f3f876839ea174df2e656b7f79
Author: Edward Lo <edward.lo@...ergroup.io>
Date:   Fri Sep 9 01:04:00 2022 +0000

    fs/ntfs3: Validate attribute name offset

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12e74535480000
start commit:   e2ca6ba6ba01 Merge tag 'mm-stable-2022-12-13' of git://git..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=a6133b41a9a0f500
dashboard link: https://syzkaller.appspot.com/bug?extid=8ebb469b64740648f1c3
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16fb2ad0480000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=164513e0480000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: fs/ntfs3: Validate attribute name offset

For information about bisection process see: https://goo.gl/tpsmEJ#bisection