netdev - Re: [PATCH RFT v2] sh_eth: fix kernel oops in skb

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Date:	Fri, 30 Oct 2015 18:02:54 +0900 (KST)
From:	David Miller <davem@...emloft.net>
To:	sergei.shtylyov@...entembedded.com
Cc:	netdev@...r.kernel.org, yashi@...ark-techno.com,
	linux-sh@...r.kernel.org
Subject: Re: [PATCH RFT v2] sh_eth: fix kernel oops in skb_put()

From: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Date: Sun, 25 Oct 2015 01:42:33 +0300

> In a low memory situation the following kernel oops occurs:
 ...
> This is because netdev_alloc_skb() fails and 'mdp->rx_skbuff[entry]' is left
> NULL but sh_eth_rx() later uses it without checking. Add such check...
> 
> Reported-by: Yasushi SHOJI <yashi@...ark-techno.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>

This seems to need more investigation and work, therefore I am
not applying this at this time.

When a final version is available (or even if this one is deemed
appropriate as-is) please resubmit it withut RFT in the Subject.

Thanks.
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