linux-kernel - Re: [stable] [2.6.20.17 review 32/58] fs: 9p/conv.c error path fix

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Date:	Wed, 22 Aug 2007 22:31:21 +0200
From:	Willy Tarreau <w@....eu>
To:	Greg KH <greg@...ah.com>
Cc:	Eric Van Hensbergen <ericvh@...il.com>,
	Mariusz Kozlowski <m.kozlowski@...land.pl>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>, stable@...nel.org
Subject: Re: [stable] [2.6.20.17 review 32/58] fs: 9p/conv.c error path fix

Hi Greg,

On Wed, Aug 22, 2007 at 11:59:41AM -0700, Greg KH wrote:
> On Wed, Aug 22, 2007 at 10:53:02AM -0500, Eric Van Hensbergen wrote:
> > On 8/22/07, Willy Tarreau <w@....eu> wrote:
> > > When buf_check_overflow() returns != 0 we will hit kfree(ERR_PTR(err))
> > > and it will not be happy about it.
> > >
> > > Signed-off-by: Mariusz Kozlowski <m.kozlowski@...land.pl>
> > > Cc: Andrew Morton <akpm@...ux-foundation.org>
> > > Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
> > > Signed-off-by: Willy Tarreau <w@....eu>
> > Acked-by: Eric Van Hensbergen <ericvh@...il.com>
> > 
> > This seems to be in the current code as well, I'll forward-port the patch...
> 
> Huh?  It's not already in mainline?  Then how did it ever get into the
> stable queue?
> 
> Ugh.

Maybe someone sent it to stable@ and lkml at the same time and it got lost
on the second (noisy) path ? Judging from the patch, it got merged about
one month ago :

willy@pcw:2.6$ git log v2.6.20..2.6.22.x -- fs/9p/conv.c|cat
commit b3b590287ca3c36e0a3fa28d626f126dd5226fc4
Author: Mariusz Kozlowski <m.kozlowski@...land.pl>
Date:   Thu Jul 19 17:27:22 2007 -0700

    fs: 9p/conv.c error path fix
    
    When buf_check_overflow() returns != 0 we will hit kfree(ERR_PTR(err))
    and it will not be happy about it.
    
    Signed-off-by: Mariusz Kozlowski <m.kozlowski@...land.pl>
    Cc: Andrew Morton <akpm@...ux-foundation.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

willy@pcw:2.6$ git describe  b3b590287ca3c36e0a3fa28d626f126dd5226fc4
v2.6.22.1-53-gb3b5902

But yes, I agree that it's very annoying when -stable contains patches
that are not in mainline. Fortunately, we have careful reviewers to
catch this when it happens !

Regards,
Willy

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