Subject: Re: Is this kernel fault OK?
To: None <email@example.com>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
Date: 06/27/2003 02:31:25
>> I once tried to define what it is about things like
>> dd if=/dev/zero of=/dev/mem
>> that exempt them from the "userland should never be able to crash the
>> kernel" dictum. I never really got anywhere. Any thoughts?
> The superuser has the same level of authority as the kernel, maybe a
> fraction more. Hence the superuser can crash the kernel. The
> "dictum" merely does not apply to "root".
What if /dev/mem is mode 666? I didn't say root ran that command.
Why is it then unacceptable for, say, syslogd provoke a panic, even if
it's running as root? Or is that fine, not an indication of a bug?
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