Re: [PATCH] kernel: make /proc/kallsyms mode 400 to reduce ease ofattacking

[H. Peter Anvin]

On 11/29/2010 11:21 AM, Eric Paris wrote:
>>
>> Delegating CAP_SYS_ADMIN, of course, otherwise known as "everything", is
>> worse than anything...
> 
> Serge just proposed a new CAP_SYSLOG
> 
> http://lwn.net/Articles/378472/
> 
> Which could probably still be renamed and used to cover this access as well....
> 

Quite frankly, the Linux capability system is largely a mess, with big
bundled capacities that don't make much sense and are hideously
inconvenient with the capability system used in user space (groups).
For things like this that genuinely has a file node, *let's use it* and
allow permissions to be controlled by the file node!

	-hpa
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