netdev - Re: [PATCH net] xfrm: fix freed block size calculation in xfrm_policy

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Message-ID: <20130121120231.GA9147@secunet.com>
Date:	Mon, 21 Jan 2013 13:02:31 +0100
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	Michal Kubecek <mkubecek@...e.cz>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net] xfrm: fix freed block size calculation in
 xfrm_policy_fini()

On Fri, Jan 18, 2013 at 04:03:48PM +0100, Michal Kubecek wrote:
> Missing multiplication of block size by sizeof(struct hlist_head)
> can cause xfrm_hash_free() to be called with wrong second argument
> so that kfree() is called on a block allocated with vzalloc() or
> __get_free_pages() or free_pages() is called with wrong order when
> a namespace with enough policies is removed.
> 
> Bug introduced by commit a35f6c5d, i.e. versions >= 2.6.29 are
> affected.
> 
> Signed-off-by: Michal Kubecek <mkubecek@...e.cz>

Applied, Thanks!
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