linux-kernel - Re: [PATCH] net/ipv4: Eliminate kstrdup memory leak

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Message-Id: <20100827.193214.71098473.davem@davemloft.net>
Date:	Fri, 27 Aug 2010 19:32:14 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	julia@...u.dk
Cc:	kernel-janitors@...r.kernel.org, kuznet@....inr.ac.ru,
	pekkas@...core.fi, jmorris@...ei.org, yoshfuji@...ux-ipv6.org,
	kaber@...sh.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net/ipv4: Eliminate kstrdup memory leak

From: Julia Lawall <julia@...u.dk>
Date: Fri, 27 Aug 2010 21:47:43 +0200

> The string clone is only used as a temporary copy of the argument val
> within the while loop, and so it should be freed before leaving the
> function.  The call to strsep, however, modifies clone, so a pointer to the
> front of the string is kept in saved_clone, to make it possible to free it.
> 
> The sematic match that finds this problem is as follows:
> (http://coccinelle.lip6.fr/)
 ...
> Signed-off-by: Julia Lawall <julia@...u.dk>

Applied, thanks!
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