Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

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On 19.03.21 19:10, Steven Rostedt wrote:
On Fri, 19 Mar 2021 15:34:49 +0100
David Hildenbrand <david@xxxxxxxxxx> wrote:

Let's start a discussion if /dev/kmem is worth keeping around and
fixing/maintaining or if we should just remove it now for good.

The last time I used /dev/kmem was in 2003. While in Germany, my home
firewall (in the US) got rooted. I could ssh into the box but had no way to
shut it down because the rootkit took over all those commands (luckily it
still allowed me to become root). I finally killed the box with:

  # ls -lR / > /dev/kmem

  ;-)


Wonder if "echo c > /proc/sysrq-trigger" already existed and would have worked back then. :)


--
Thanks,

David / dhildenb




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