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Message-Id: <20121207.144119.1859602274016402253.davem@davemloft.net> Date: Fri, 07 Dec 2012 14:41:19 -0500 (EST) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: netdev@...r.kernel.org Subject: Re: [PATCH] net: gro: fix possible panic in skb_gro_receive() From: Eric Dumazet <eric.dumazet@...il.com> Date: Thu, 06 Dec 2012 15:54:59 -0800 > From: Eric Dumazet <edumazet@...gle.com> > > commit 2e71a6f8084e (net: gro: selective flush of packets) added > a bug for skbs using frag_list. This part of the GRO stack is rarely > used, as it needs skb not using a page fragment for their skb->head. > > Most drivers do use a page fragment, but some of them use GFP_KERNEL > allocations for the initial fill of their RX ring buffer. > > napi_gro_flush() overwrite skb->prev that was used for these skb to > point to the last skb in frag_list. > > Fix this using a separate field in struct napi_gro_cb to point to the > last fragment. > > Signed-off-by: Eric Dumazet <edumazet@...gle.com> Applied, thanks Eric. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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