Re: [RFC PATCH v1 4/4] firmware loader: don't allow to requestfirmware via relative path

[Greg Kroah-Hartman]

On Thu, Jun 06, 2013 at 08:01:50PM +0800, Ming Lei wrote:
> It isn't a good pratice to request firmware via relative path, also
> might have security issue, so don't do it.

What would the security issue be?  You are letting the person who build
the kernel specify this, so they can put whatever they want in here, a
'..' isn't going to keep them from being able to do "bad" things if they
really want to.

thanks,

greg k-h
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