linux-kernel - Re: [RESEND PATCH] x86: add phys addr validity check for /dev/mem mmap

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Message-ID: <524C6BCD.2000007@zytor.com>
Date:	Wed, 02 Oct 2013 11:54:05 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Frantisek Hrbata <fhrbata@...hat.com>
CC:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	tglx@...utronix.de, mingo@...hat.com, x86@...nel.org,
	oleg@...hat.com, kamaleshb@...ibm.com, hechjie@...ibm.com,
	akpm@...ux-foundation.org, dave.hansen@...el.com
Subject: Re: [RESEND PATCH] x86: add phys addr validity check for /dev/mem
 mmap

On 10/02/2013 11:48 AM, Frantisek Hrbata wrote:
> 
> Ok, I can try to look into this. I just want to point out that some other archs
> like arm are doing it the same way. I simply replaced the generic check functions
> in drivers/char/mem.c with x86 specific ones.
> 

I know.  It is a longstanding problem.

	-hpa


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