netdev - Re: [34/44] Limit sysctl_tcp_mem and sysctl_udp_mem initializers to prevent integer overflows.

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Message-ID: <20101208231315.GB8196@suse.de>
Date:	Wed, 8 Dec 2010 15:13:15 -0800
From:	Greg KH <gregkh@...e.de>
To:	David Miller <davem@...emloft.net>
Cc:	eric.dumazet@...il.com, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, holt@....com, w@....eu,
	netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
	kuznet@....inr.ac.ru, pekkas@...core.fi, jmorris@...ei.org,
	yoshfuji@...ux-ipv6.org, kaber@...sh.net,
	vladislav.yasevich@...com, sri@...ibm.com
Subject: Re: [34/44] Limit sysctl_tcp_mem and sysctl_udp_mem initializers
 to prevent integer overflows.

On Wed, Dec 08, 2010 at 08:25:22AM -0800, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@...il.com>
> Date: Wed, 08 Dec 2010 06:50:45 +0100
> 
> > Le mardi 07 décembre 2010 à 20:16 -0800, Greg KH a écrit :
> >> On Tue, Dec 07, 2010 at 05:22:34PM -0800, Linus Torvalds wrote:
> >> > On Tue, Dec 7, 2010 at 4:04 PM, Greg KH <gregkh@...e.de> wrote:
> >> > >
> >> > > From: Robin Holt <holt@....com>
> >> > >
> >> > > [ Problem was fixed differently upstream. -DaveM ]
> >> > 
> >> > Gaah. I'd really like to see more of a description for things like
> >> > this. A commit ID for the alternate fix, or at least a few words about
> >> > the different fix or reason why upstream doesn't need the stable
> >> > commit.
> >> 
> >> I'll let David confirm this, he's the one who sent it to me :)
> > 
> > upstream uses commit 8d987e5c7510 (net: avoid limits overflow)
> > 
> > This commit is a bit more untrusive for stable kernels :
> > 
> > It depends on :
> > a9febbb4bd13 (sysctl: min/max bounds are optional)
> > 27b3d80a7b6a (sysctl: fix min/max handling in __do_proc_doulongvec_minmax())
> 
> Yep, this is the case.  Greg, you can add a reference to:
> 
> a9febbb4bd13
> 27b3d80a7b6a
> 8d987e5c7510
> 
> in my "[ ... ]" in the commit message to clear this up.

Now added, thanks.

greg k-h
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