netdev - Re: [PATCH] tipc: fix dereference before check warning

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Message-Id: <20131114.031552.1482448032176198856.davem@davemloft.net>
Date:	Thu, 14 Nov 2013 03:15:52 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	erik.hugne@...csson.com
Cc:	jon.maloy@...csson.com, paul.gortmaker@...driver.com,
	dan.carpenter@...cle.com, maloy@...jonn.com,
	netdev@...r.kernel.org, tipc-discussion@...ts.sourceforge.net,
	ying.xue@...driver.com
Subject: Re: [PATCH] tipc: fix dereference before check warning

From: <erik.hugne@...csson.com>
Date: Wed, 13 Nov 2013 09:35:11 +0100

> From: Erik Hugne <erik.hugne@...csson.com>
> 
> This fixes the following Smatch warning:
> net/tipc/link.c:2364 tipc_link_recv_fragment()
>     warn: variable dereferenced before check '*head' (see line 2361)
> 
> A null pointer might be passed to skb_try_coalesce if
> a malicious sender injects orphan fragments on a link.
> 
> Signed-off-by: Erik Hugne <erik.hugne@...csson.com>

Applied, thank you.
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