netdev - Re: [PATCH net] net: mvneta: fix possible use-after-free in mvneta_xdp_put

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Message-Id: <20200910.150425.1073221782210309746.davem@davemloft.net>
Date:   Thu, 10 Sep 2020 15:04:25 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     lorenzo@...nel.org
Cc:     netdev@...r.kernel.org, lorenzo.bianconi@...hat.com,
        kuba@...nel.org, thomas.petazzoni@...tlin.com, brouer@...hat.com,
        echaudro@...hat.com
Subject: Re: [PATCH net] net: mvneta: fix possible use-after-free in
 mvneta_xdp_put_buff

From: Lorenzo Bianconi <lorenzo@...nel.org>
Date: Thu, 10 Sep 2020 11:08:01 +0200

> Release first buffer as last one since it contains references
> to subsequent fragments. This code will be optimized introducing
> multi-buffer bit in xdp_buff structure.
> 
> Fixes: ca0e014609f05 ("net: mvneta: move skb build after descriptors processing")
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>

Applied, thank you.