linux-kernel - Re: [PATCH] kconfig: Add kernel config option for fuzz testing.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAK7LNASDO-q_v9M-F=azTgg+nazPCs9KdcgLcOxT_C+jW4fEUQ@mail.gmail.com>
Date:   Tue, 17 Dec 2019 14:42:29 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:     Alexander Viro <viro@...iv.linux.org.uk>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>
Subject: Re: [PATCH] kconfig: Add kernel config option for fuzz testing.

On Mon, Dec 16, 2019 at 7:01 PM Tetsuo Handa
<penguin-kernel@...ove.sakura.ne.jp> wrote:
>

Please do not use the subject prefix "kconfig:"
unless you are touching files in scripts/kconfig/.

Thanks.


> While syzkaller is finding many bugs, sometimes syzkaller examines
> stupid operations. But disabling operations using kernel config option
> is problematic because "kernel config option excludes whole module when
> there is still room for examining all but specific operation" and
> "the list of kernel config options becomes too complicated to maintain
> because such list changes over time". Thus, this patch introduces a
> kernel config option which allows disabling only specific operations.
> This kernel config option should be enabled only when building kernels
> for fuzz testing.
>
> Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
> Cc: Dmitry Vyukov <dvyukov@...gle.com>
> ---
-- 
Best Regards
Masahiro Yamada