linux-kernel - Re: Is there any word about this bug in gcc ?

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Date:	Mon, 19 Nov 2007 22:47:59 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	David Miller <davem@...emloft.net>, xiyou.wangcong@...il.com,
	goodmenkernel@...il.com, linux-kernel@...r.kernel.org
Subject: Re: Is there any word about this bug in gcc ?

Herbert Xu wrote:
> David Miller <davem@...emloft.net> wrote:
>> Because the compiler knows things about the inputs and can
>> thus apply optimizations that a static implementation in glibc
>> that has to handle all forms of inputs cannot.
> 
> On an unrelated note, I wonder if distros will be treating this
> with the same level of urgency as security vulnerabilities,
> especially in light of Shamir's recent note on maths errors.
> 

This one is definitely messy.  There is absolutely no way to know what 
gcc has miscompiled.  It looks to me that both gcc 4.2 and 4.3 are 
affected, any others?

	-hpa
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