netdev - Re: [PATCH ipsec] xfrm: prevent ipcomp scratch buffer race condition

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Message-ID: <20131017131326.GB6747@unicorn.suse.cz>
Date:	Thu, 17 Oct 2013 15:13:26 +0200
From:	Michal Kubecek <mkubecek@...e.cz>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Steffen Klassert <steffen.klassert@...unet.com>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH ipsec] xfrm: prevent ipcomp scratch buffer race condition

On Thu, Oct 17, 2013 at 07:04:20PM +0800, Herbert Xu wrote:
V> On Thu, Oct 17, 2013 at 01:01:49PM +0200, Michal Kubecek wrote:
> > 
> > Am I wrong?
> 
> I hope so :) Because otherwise xfrm_input will surely dead-lock since
> it uses spin_lock.
> 
> The cases you mentioned should all go through netif_rx which will
> then do the processing in BH context.

You are right. Thank you for the correction.

Michal Kubecek

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