netdev - Re: [syzbot] [net?] [ntfs3?] KMSAN: uninit-value in bcmp

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Message-ID: <CACT4Y+asA1zb6A4SJTDgF+rpNyZoHmE27xjfQd5pqg2_wyhErA@mail.gmail.com>
Date:   Mon, 20 Feb 2023 07:52:18 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+d8b02c920ae8f3e0be75@...kaller.appspotmail.com>
Cc:     almaz.alexandrovich@...agon-software.com, davem@...emloft.net,
        edward.lo@...ergroup.io, glider@...gle.com, idosch@...lanox.com,
        ivan.khoronzhuk@...aro.org, jiri@...lanox.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, ntfs3@...ts.linux.dev, petrm@...lanox.com,
        phind.uet@...il.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] [ntfs3?] KMSAN: uninit-value in bcmp

On Sat, 18 Feb 2023 at 23:16, syzbot
<syzbot+d8b02c920ae8f3e0be75@...kaller.appspotmail.com> wrote:
>
> 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=149cdbcf480000
> start commit:   b7b275e60bcd Linux 6.1-rc7
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
> dashboard link: https://syzkaller.appspot.com/bug?extid=d8b02c920ae8f3e0be75
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=164c4a4b880000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=152bfbc9880000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: fs/ntfs3: Validate attribute name offset

Looks reasonable to me"

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