netdev - Re: [PATCH] 8021q: fix a potential memory leak

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Message-Id: <20140621.151258.715350958253521786.davem@davemloft.net>
Date:	Sat, 21 Jun 2014 15:12:58 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	roy.qing.li@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] 8021q: fix a potential memory leak

From: roy.qing.li@...il.com
Date: Wed, 18 Jun 2014 13:46:02 +0800

> From: Li RongQing <roy.qing.li@...il.com>
> 
> skb_cow called in vlan_reorder_header does not free the skb when it failed,
> and vlan_reorder_header returns NULL to reset original skb when it is called
> in vlan_untag, lead to a memory leak.
> 
> Signed-off-by: Li RongQing <roy.qing.li@...il.com>

Applied and queued up for -stable, thanks.

And I agree with Eric that we could define this to return error codes
since 'skb' never changes so returning skb vs. NULL is rather awkward.
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