linux-kernel - Re: BUG: unable to handle kernel NULL pointer dereference in write

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Message-ID: <CAEAjamsAOJC_EqdX8nTddhN4Xis3d_D1L54Ry3sBdC8L84EdVg@mail.gmail.com>
Date:   Wed, 21 Nov 2018 05:11:47 -0500
From:   Kyungtae Kim <kt0755@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     gregkh@...uxfoundation.org,
        Byoungyoung Lee <lifeasageek@...il.com>,
        DaeRyong Jeong <threeearcat@...il.com>,
        syzkaller@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: BUG: unable to handle kernel NULL pointer dereference in write_port

Thank you for your reply.
But I think this kind of crash can occur in real PC as well, and I'm
just thinking of some way to stop it in the first place (if possible).
because malicious users can use this, so as to make the whole system
(kernel) work incorrectly.

Thanks,
Kyungtae