linux-kernel - Re: [PATCH] caif: Do not dereference NULL in chnl_recv

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Message-Id: <20120820.024808.184015666899890382.davem@davemloft.net>
Date:	Mon, 20 Aug 2012 02:48:08 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	sjur.brandeland@...ricsson.com
Cc:	jj@...osbits.net, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, daniel.martensson@...ricsson.com
Subject: Re: [PATCH] caif: Do not dereference NULL in chnl_recv_cb()

From: Sjur BRENDELAND <sjur.brandeland@...ricsson.com>
Date: Mon, 20 Aug 2012 08:33:35 +0200

>> In net/caif/chnl_net.c::chnl_recv_cb() we call skb_header_pointer()
>> which may return NULL, but we do not check for a NULL pointer before
>> dereferencing it.
>> This patch adds such a NULL check and properly free's allocated memory
>> and return an error (-EINVAL) on failure - much better than crashing..
>> 
>> Signed-off-by: Jesper Juhl <jj@...osbits.net>
> 
> Thank you for fixing this, the patch looks good to me.
> Acked-by: Sjur Brændeland <sjur.brandeland@...ricsson.com>

Applied, thanks.
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