From: Pavel Machek <pavel@denx.de>
To: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Pavel Machek <pavel@denx.de>,
stable@kernel.org, kernel list <linux-kernel@vger.kernel.org>,
davem@davemloft.net, gregkh@linuxfoundation.org
Subject: Re: net: atm: Spectre v1 fix introduced bug in bcb964012d1b in -stable
Date: Mon, 20 May 2019 18:15:49 +0200 [thread overview]
Message-ID: <20190520161549.GB25789@amd> (raw)
In-Reply-To: <02622e60-8ce9-8db3-8d16-fa1a32e063bf@embeddedor.com>
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On Mon 2019-05-20 09:15:50, Gustavo A. R. Silva wrote:
>
>
> On 5/20/19 7:40 AM, Pavel Machek wrote:
> >
> > In lecd_attach, if arg is < 0, it was treated as 0. Spectre v1 fix
> > changed that. Bug does not exist in mainline AFAICT.
> >
>
> NACK
>
> array_index_nospec() macro returns zero if *arg* is out of bounds.
No, it does not. Take a look:
#define array_index_nospec(index, size)
...
(typeof(_i)) (_i & _mask);
})
Pavel
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DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2019-05-20 16:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-20 12:40 net: atm: Spectre v1 fix introduced bug in bcb964012d1b in -stable Pavel Machek
2019-05-20 14:00 ` Greg KH
2019-05-20 14:26 ` Gustavo A. R. Silva
2019-05-20 21:00 ` Pavel Machek
2019-05-20 16:15 ` Pavel Machek
2019-05-20 14:15 ` Gustavo A. R. Silva
2019-05-20 16:15 ` Pavel Machek [this message]
2019-05-20 16:54 ` Gustavo A. R. Silva
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