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Date: Tue, 13 Jun 2017 09:47:33 +0200
From: Salvatore Mesoraca <>
To: Krzysztof Opasiak <>
Cc: kernel list <>,, 
	Kernel Hardening <>, 
	Brad Spengler <>, PaX Team <>, 
	Casey Schaufler <>, Kees Cook <>, 
	James Morris <>, "Serge E. Hallyn" <>,, 
	Greg Kroah-Hartman <>
Subject: Re: [PATCH 03/11] Creation of "usb_device_auth" LSM hook

2017-06-12 19:35 GMT+02:00 Krzysztof Opasiak <>:
> Could you please explain me why we need LSM for this?
> There are tools like usbguard[1] and as far as I can tell it looks like they
> can do everything for you...

I have to admit that this is the first time I read about usbguard and it made
me realize that this feature can be implemented in userspace, so no need
to modify the kernel. :)
You are right.

Thank you very much for taking the time to answer me.

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