linux-kernel - Re: [PATCH 061/270] timekeeping: Cast raw_interval to u64 to avoid shift overflow

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Message-ID: <20121130015110.GG13478@kroah.com>
Date:	Thu, 29 Nov 2012 17:51:10 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Subject: Re: [PATCH 061/270] timekeeping: Cast raw_interval to u64 to avoid
 shift overflow

On Tue, Nov 27, 2012 at 03:08:27PM +0000, Ben Hutchings wrote:
> On Mon, 2012-11-26 at 14:55 -0200, Herton Ronaldo Krzesinski wrote:
> > 3.5.7u1 -stable review patch.  If anyone has any objections, please let me know.
> > 
> > ------------------
> > 
> > From: Dan Carpenter <dan.carpenter@...cle.com>
> > 
> > commit 5b3900cd409466c0070b234d941650685ad0c791 upstream.
> > 
> > We fixed a bunch of integer overflows in timekeeping code during the 3.6
> > cycle.  I did an audit based on that and found this potential overflow.
> > 
> > Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
> > Acked-by: John Stultz <johnstul@...ibm.com>
> > Link: http://lkml.kernel.org/r/20121009071823.GA19159@elgon.mountain
> > Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> > [ herton: adapt for 3.5, timekeeper instead of tk pointer ]
> > Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
> 
> This is also missing from 3.4; looks like Herton's version is
> applicable.

Thanks, now applied.

greg k-h
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